Patch release.

* Let us time minify
* Making AVX-512 available by default.
* Silencing some maybe-uninitialized warning under GCC (warning appears in the standard library).
* Making the Python amalgamation script a bit more Windows friendly.
* We do not try to silence -Wmaybe-uninitialized under clang.

.appveyor.yml

@@ -4,28 +4,40 @@ configuration: Release
 image: Visual Studio 2019
 platform: x64
 
+cache:
+  - C:\dependencies -> dependencies\CMakeLists.txt
+
 environment:
+  # Forward slash is used because this is used in CMake as is
+  simdjson_DEPENDENCY_CACHE_DIR: C:/dependencies
+
   matrix:
     - job_name: VS2019
-      CMAKE_ARGS:  -A %Platform%
-    - job_name: VS2019CLANG
-      CMAKE_ARGS:  -A %Platform% -T ClangCL
+      CMAKE_ARGS: -A %Platform%
     - job_name: VS2019ARM
-      CMAKE_ARGS: -A ARM64 -DCMAKE_CROSSCOMPILING=1 -D SIMDJSON_GOOGLE_BENCHMARKS=OFF # Does Google Benchmark builds under VS ARM?
+      CMAKE_ARGS: -A ARM64   -DSIMDJSON_DEVELOPER_MODE=ON -DCMAKE_CROSSCOMPILING=1 -D SIMDJSON_GOOGLE_BENCHMARKS=OFF # Does Google Benchmark builds under VS ARM?
     - job_name: VS2017 (Static, No Threads)
       image: Visual Studio 2017
-      CMAKE_ARGS:  -A %Platform% -DSIMDJSON_BUILD_STATIC=ON -DSIMDJSON_ENABLE_THREADS=OFF
-      CTEST_ARGS: -E checkperf
+      CMAKE_ARGS: -A %Platform%   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_ENABLE_THREADS=OFF
+      CTEST_ARGS: -LE explicitonly
     - job_name: VS2019 (Win32)
       platform: Win32
-      CMAKE_ARGS:  -A %Platform% -DSIMDJSON_BUILD_STATIC=OFF -DSIMDJSON_ENABLE_THREADS=ON # This should be the default. Testing anyway.
-      CTEST_ARGS: -E checkperf
+      CMAKE_ARGS: -A %Platform%   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON -DSIMDJSON_ENABLE_THREADS=ON # This should be the default. Testing anyway.
+      CTEST_ARGS: -LE explicitonly
+    - job_name: VS2019 (Win32, No Exceptions)
+      platform: Win32
+      CMAKE_ARGS: -A %Platform%   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON -DSIMDJSON_ENABLE_THREADS=ON -DSIMDJSON_EXCEPTIONS=OFF
+      CTEST_ARGS: -LE explicitonly
+    - job_name: VS2015
+      image: Visual Studio 2015
+      CMAKE_ARGS: -A %Platform%   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_ENABLE_THREADS=OFF
+      CTEST_ARGS: -LE explicitonly
 
 build_script:
   - mkdir build
   - cd build
   - cmake --version
-  - cmake %CMAKE_ARGS% --parallel ..
+  - cmake %CMAKE_ARGS% ..
   - cmake -LH ..
   - cmake --build . --config %Configuration% --verbose --parallel
 

.circleci/config.yml

@@ -1,24 +1,18 @@
 version: 2.1
 
+
+# We constantly run out of memory so please do not use parallelism (-j, -j4).
+
 # Reusable image / compiler definitions
 executors:
-  gcc7:
-    docker:
-      - image: gcc:7
-        environment:
-          CXX: g++
-          CC: gcc
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
-
   gcc8:
     docker:
       - image: conanio/gcc8
         environment:
           CXX: g++-8
           CC: gcc-8
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
+          CMAKE_BUILD_FLAGS:
+          CTEST_FLAGS: --output-on-failure
 
   gcc9:
     docker:
@@ -26,8 +20,8 @@ executors:
         environment:
           CXX: g++-9
           CC: gcc-9
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
+          CMAKE_BUILD_FLAGS:
+          CTEST_FLAGS: --output-on-failure
 
   gcc10:
     docker:
@@ -35,8 +29,8 @@ executors:
         environment:
           CXX: g++-10
           CC: gcc-10
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
+          CMAKE_BUILD_FLAGS:
+          CTEST_FLAGS: --output-on-failure
 
   clang10:
     docker:
@@ -44,8 +38,8 @@ executors:
         environment:
           CXX: clang++-10
           CC: clang-10
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
+          CMAKE_BUILD_FLAGS:
+          CTEST_FLAGS: --output-on-failure
 
   clang9:
     docker:
@@ -53,8 +47,8 @@ executors:
         environment:
           CXX: clang++-9
           CC: clang-9
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
+          CMAKE_BUILD_FLAGS:
+          CTEST_FLAGS: --output-on-failure
 
   clang6:
     docker:
@@ -62,11 +56,24 @@ executors:
         environment:
           CXX: clang++-6.0
           CC: clang-6.0
-          BUILD_FLAGS: -j
-          CTEST_FLAGS: -j4 --output-on-failure
+          CMAKE_BUILD_FLAGS:
+          CTEST_FLAGS: --output-on-failure
 
 # Reusable test commands (and initializer for clang 6)
 commands:
+  dependency_restore:
+    steps:
+      - restore_cache:
+          keys:
+            - cmake-cache-{{ checksum "dependencies/CMakeLists.txt" }}
+
+  dependency_cache:
+    steps:
+      - save_cache:
+          key: cmake-cache-{{ checksum "dependencies/CMakeLists.txt" }}
+          paths:
+            - dependencies/.cache
+
   install_cmake:
     steps:
       - run: apt-get update -qq
@@ -77,95 +84,140 @@ commands:
       - checkout
       - run: mkdir -p build
 
-  cmake_build:
+  cmake_build_cache:
     steps:
       - cmake_prep
-      - run: |
-          cd build &&
-          cmake $CMAKE_FLAGS -DCMAKE_INSTALL_PREFIX:PATH=destination .. &&
-          make $BUILD_FLAGS all
+      - dependency_restore
+      - run: cmake  -DSIMDJSON_DEVELOPER_MODE=ON $CMAKE_FLAGS -DCMAKE_INSTALL_PREFIX:PATH=destination -B build .
+      - dependency_cache # dependencies are produced in the configure step
+
+  cmake_build:
+    steps:
+      - cmake_build_cache
+      - run: cmake  --build build
 
   cmake_test:
     steps:
       - cmake_build
       - run: |
-          cd build && tools/json2json -h &&
+          cd build &&
+          tools/json2json -h &&
           ctest $CTEST_FLAGS -L acceptance &&
-          ctest $CTEST_FLAGS -LE acceptance -E checkperf
+          ctest $CTEST_FLAGS -LE acceptance -LE explicitonly
+
+  cmake_assert_test:
+    steps:
+      - run: |
+          cd build &&
+          tools/json2json -h &&
+          ctest $CTEST_FLAGS -L assert
 
   cmake_test_all:
     steps:
       - cmake_build
       - run: |
-          cd build &&  tools/json2json -h &&
-          ctest $CTEST_FLAGS -L acceptance -LE per_implementation &&
-          SIMDJSON_FORCE_IMPLEMENTATION=haswell ctest $CTEST_FLAGS -L per_implementation &&
-          SIMDJSON_FORCE_IMPLEMENTATION=westmere ctest $CTEST_FLAGS -L per_implementation &&SIMDJSON_FORCE_IMPLEMENTATION=fallback ctest $CTEST_FLAGS -L per_implementation &&
+          cd build &&
+          tools/json2json -h &&
+          ctest $CTEST_FLAGS -DSIMDJSON_IMPLEMENTATION="haswell;westmere;fallback" -L acceptance -LE per_implementation &&
+          SIMDJSON_FORCE_IMPLEMENTATION=haswell ctest $CTEST_FLAGS -L per_implementation -LE explicitonly &&
+          SIMDJSON_FORCE_IMPLEMENTATION=westmere ctest $CTEST_FLAGS -L per_implementation -LE explicitonly &&
+          SIMDJSON_FORCE_IMPLEMENTATION=fallback ctest $CTEST_FLAGS -L per_implementation -LE explicitonly &&
           ctest $CTEST_FLAGS -LE "acceptance|per_implementation" # Everything we haven't run yet, run now.
 
 
+  cmake_perftest:
+    steps:
+      - cmake_build_cache
+      - run: |
+          cmake -DSIMDJSON_ENABLE_DOM_CHECKPERF=ON --build  build --target checkperf &&
+          cd build &&
+          ctest --output-on-failure -R checkperf
+
   # we not only want cmake to build and run tests, but we want also a successful installation from which we can build, link and run programs
   cmake_install_test: # this version builds, install, test and then verify from the installation
     steps:
       - run: cd build && make install
       - run: echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Ibuild/destination/include -Lbuild/destination/lib -std=c++17 -Wl,-rpath,build/destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json
 
+  cmake_installed_test_cxx20: # assuming that it was installed, this tries to build using C++20
+    steps:
+      - run: echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Ibuild/destination/include -Lbuild/destination/lib -std=c++20 -Wl,-rpath,build/destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json
+
 jobs:
 
   # static
-  gcc7:
-    description: Build and run tests on GCC 7 and AVX 2 with a cmake static build
-    executor: gcc7
-    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_BUILD_STATIC=ON }
-    steps: [ install_cmake, cmake_test, cmake_install_test ]
   justlib-gcc10:
     description: Build just the library, install it and do a basic test
     executor: gcc10
-    environment: { CMAKE_FLAGS: -SIMDJSON_JUST_LIBRARY=ON }
-    steps: [ cmake_build, cmake_install_test ]
-  gcc10:
-    description: Build and run tests on GCC 10 and AVX 2 with a cmake static build, this test performance regression
+    environment: { CMAKE_FLAGS: -DSIMDJSON_JUST_LIBRARY=ON }
+    steps: [ cmake_build, cmake_install_test, cmake_installed_test_cxx20 ]
+  assert-gcc10:
+    description: Build the library with asserts on, install it and run tests
     executor: gcc10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_BUILD_STATIC=ON }
-    steps: [ cmake_test_all, cmake_install_test ]
+    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DCMAKE_CXX_FLAGS_RELEASE=-O3 }
+    steps: [ cmake_test, cmake_assert_test ]
+  assert-clang10:
+    description: Build just the library, install it and do a basic test
+    executor: clang10
+    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DCMAKE_CXX_FLAGS_RELEASE=-O3 }
+    steps: [ cmake_test, cmake_assert_test ]
+  gcc10-perftest:
+    description: Build and run performance tests on GCC 10 and AVX 2 with a cmake static build, this test performance regression
+    executor: gcc10
+    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DBUILD_SHARED_LIBS=OFF }
+    steps: [ cmake_perftest ]
+  gcc10:
+    description: Build and run tests on GCC 10 and AVX 2 with a cmake static build
+    executor: gcc10
+    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DBUILD_SHARED_LIBS=OFF }
+    steps: [ cmake_test, cmake_install_test, cmake_installed_test_cxx20 ]
   clang6:
     description: Build and run tests on clang 6 and AVX 2 with a cmake static build
     executor: clang6
-    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_BUILD_STATIC=ON }
+    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DBUILD_SHARED_LIBS=OFF }
     steps: [ cmake_test, cmake_install_test ]
   clang10:
     description: Build and run tests on clang 10 and AVX 2 with a cmake static build
     executor: clang10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON  -DSIMDJSON_BUILD_STATIC=ON }
-    steps: [ cmake_test, cmake_install_test ]
+    environment: { CMAKE_FLAGS: -DSIMDJSON_GOOGLE_BENCHMARKS=ON  -DBUILD_SHARED_LIBS=OFF }
+    steps: [ cmake_test, cmake_install_test, cmake_installed_test_cxx20 ]
   # libcpp
   libcpp-clang10:
     description: Build and run tests on clang 10 and AVX 2 with a cmake static build and libc++
     executor: clang10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_USE_LIBCPP=ON  -DSIMDJSON_BUILD_STATIC=ON }
-    steps: [ cmake_test, cmake_install_test ]
+    environment: { CMAKE_FLAGS: -DSIMDJSON_USE_LIBCPP=ON  -DBUILD_SHARED_LIBS=OFF }
+    steps: [ cmake_test, cmake_install_test, cmake_installed_test_cxx20 ]
   # sanitize
   sanitize-gcc10:
     description: Build and run tests on GCC 10 and AVX 2 with a cmake sanitize build
     executor: gcc10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF -DSIMDJSON_SANITIZE=ON, BUILD_FLAGS: "", CTEST_FLAGS: -j4 --output-on-failure -E checkperf }
+    environment: { CMAKE_FLAGS: -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=ON -DSIMDJSON_SANITIZE=ON, CTEST_FLAGS: --output-on-failure -LE explicitonly }
     steps: [ cmake_test ]
   sanitize-clang10:
     description: Build and run tests on clang 10 and AVX 2 with a cmake sanitize build
     executor: clang10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF -DSIMDJSON_SANITIZE=ON, CTEST_FLAGS: -j4 --output-on-failure -E checkperf }
+    environment: { CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON -DSIMDJSON_NO_FORCE_INLINING=ON -DSIMDJSON_SANITIZE=ON, CTEST_FLAGS: --output-on-failure -LE explicitonly }
+    steps: [ cmake_test ]
+  threadsanitize-gcc10:
+    description: Build and run tests on GCC 10 and AVX 2 with a cmake sanitize build
+    executor: gcc10
+    environment: { CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON -DSIMDJSON_SANITIZE_THREADS=ON, CTEST_FLAGS: --output-on-failure -LE explicitonly }
+    steps: [ cmake_test ]
+  threadsanitize-clang10:
+    description: Build and run tests on clang 10 and AVX 2 with a cmake sanitize build
+    executor: clang10
+    environment: { CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON  -DSIMDJSON_NO_FORCE_INLINING=ON -DSIMDJSON_SANITIZE_THREADS=ON, CTEST_FLAGS: --output-on-failure -LE explicitonly }
     steps: [ cmake_test ]
-
   # dynamic
   dynamic-gcc10:
     description: Build and run tests on GCC 10 and AVX 2 with a cmake dynamic build
     executor: gcc10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF }
+    environment: { CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON }
     steps: [ cmake_test, cmake_install_test ]
   dynamic-clang10:
     description: Build and run tests on clang 10 and AVX 2 with a cmake dynamic build
     executor: clang10
-    environment: { CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF }
+    environment: { CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON }
     steps: [ cmake_test, cmake_install_test ]
 
   # unthreaded
@@ -198,19 +250,24 @@ jobs:
 
   # make (test and checkperf)
   arch-haswell-gcc10:
-    description: Build, run tests and check performance on GCC 7 with -march=haswell
+    description: Build, run tests and check performance on GCC 10 with -march=haswell
     executor: gcc10
     environment: { CXXFLAGS: -march=haswell }
     steps: [ cmake_test ]
   arch-nehalem-gcc10:
-    description: Build, run tests and check performance on GCC 7 with -march=nehalem
+    description: Build, run tests and check performance on GCC 10 with -march=nehalem
     executor: gcc10
     environment: { CXXFLAGS: -march=nehalem }
     steps: [ cmake_test ]
-  no-computed-goto-gcc10:
-    description: Build, run tests and check performance on GCC 7 with -DSIMDJSON_NO_COMPUTED_GOTO=true
+  sanitize-haswell-gcc10:
+    description: Build and run tests on GCC 10 and AVX 2 with a cmake sanitize build
     executor: gcc10
-    environment: { CXXFLAGS: -DSIMDJSON_NO_COMPUTED_GOTO=true }
+    environment: {  CXXFLAGS: -march=haswell, CMAKE_FLAGS: -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=ON -DSIMDJSON_SANITIZE=ON, CTEST_FLAGS: --output-on-failure -LE explicitonly }
+    steps: [ cmake_test ]
+  sanitize-haswell-clang10:
+    description: Build and run tests on clang 10 and AVX 2 with a cmake sanitize build
+    executor: clang10
+    environment: { CXXFLAGS: -march=haswell, CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON  -DSIMDJSON_NO_FORCE_INLINING=ON -DSIMDJSON_SANITIZE=ON, CTEST_FLAGS: --output-on-failure -LE explicitonly }
     steps: [ cmake_test ]
 
 workflows:
@@ -218,7 +275,7 @@ workflows:
   build_and_test:
     jobs:
       # full multi-implementation tests
-      - gcc7
+      #- gcc7 tested on GitHub actions
       - gcc10 # do not delete this as it tests our performance
       - clang6
       #- clang10 # this gets tested a lot below
@@ -229,6 +286,8 @@ workflows:
       # full single-implementation tests
       - sanitize-gcc10
       - sanitize-clang10
+      - threadsanitize-gcc10
+      - threadsanitize-clang10
       - dynamic-gcc10
       - dynamic-clang10
       - unthreaded-gcc10
@@ -241,9 +300,17 @@ workflows:
       # quicker make single-implementation tests
       - arch-haswell-gcc10
       - arch-nehalem-gcc10
-      - no-computed-goto-gcc10
+
+
+      # sanitized single-implementation tests
+      - sanitize-haswell-gcc10
+      - sanitize-haswell-clang10
 
       # testing "just the library"
       - justlib-gcc10
 
+      # testing asserts
+      - assert-gcc10
+      - assert-clang10
+
       # TODO add windows: https://circleci.com/docs/2.0/configuration-reference/#windows

.cirrus.yml

@@ -6,6 +6,11 @@ task:
 
   env:
     ASSUME_ALWAYS_YES: YES
+    simdjson_DEPENDENCY_CACHE_DIR: $HOME/.dep_cache
+  dep_cache:
+    folder: $HOME/.dep_cache
+    reupload_on_changes: false
+    fingerprint_script: cat dependencies/CMakeLists.txt
   setup_script:
     - pkg update -f
     - pkg install bash
@@ -14,8 +19,8 @@ task:
   build_script:
     - mkdir build
     - cd build
-    - cmake ..
-    - make -j4
+    - cmake -DSIMDJSON_BASH=OFF  -DSIMDJSON_GIT=OFF ..
+    - make
   test_script:
     - cd build
-    - ctest -j4 --output-on-failure -E checkperf
+    - ctest --output-on-failure -LE explicitonly

.dockerignore

@@ -1,7 +1,7 @@
 *
 !.git
 !Makefile
-!amalgamate.sh
+!amalgamate.py
 !benchmark
 !dependencies
 !include
@@ -12,4 +12,4 @@
 !src
 !style
 !tests
-!tools
+!tools

.drone.yml

@@ -1,46 +1,4 @@
 kind: pipeline
-name: i386-gcc # we do not support 32-bit systems, but we run tests
-platform: { os: linux, arch: amd64 }
-steps:
-- name: Build and Test
-  image: i386/ubuntu
-  environment:
-    CC: gcc
-    CXX: g++
-    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf 
-  commands:
-    - apt-get update -qq
-    - apt-get install -y g++ cmake gcc
-    - mkdir build
-    - cd build
-    - cmake $CMAKE_FLAGS ..
-    - cmake --build . $BUILD_FLAGS
-    - ctest $CTEST_FLAGS 
----
-kind: pipeline
-name: i386-clang # we do not support 32-bit systems, but we run tests
-platform: { os: linux, arch: amd64 }
-steps:
-- name: Build and Test
-  image: i386/ubuntu
-  environment:
-    CC: clang-6.0
-    CXX: clang++-6.0
-    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf 
-  commands:
-    - apt-get update -qq
-    - apt-get install -y clang++-6.0 cmake
-    - mkdir build
-    - cd build
-    - cmake $CMAKE_FLAGS ..
-    - cmake --build . $BUILD_FLAGS
-    - ctest $CTEST_FLAGS 
----
-kind: pipeline
 name: gcc9
 platform: { os: linux, arch: amd64 }
 steps:
@@ -50,16 +8,18 @@ steps:
     CC: gcc
     CXX: g++
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=icelake;haswell;westmere;fallback
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake
+    - apt-get -t buster-backports install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
     - cmake --build . $BUILD_FLAGS
     - ctest $CTEST_FLAGS -L acceptance -LE per_implementation
+    - SIMDJSON_FORCE_IMPLEMENTATION=icelake ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=haswell ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=westmere ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=fallback ctest $CTEST_FLAGS -L per_implementation
@@ -76,14 +36,15 @@ steps:
     CC: clang-6.0
     CXX: clang++-6.0
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=icelake;haswell;westmere;fallback
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
     - cmake --build . $BUILD_FLAGS
     - ctest $CTEST_FLAGS -L acceptance -LE per_implementation
+    - SIMDJSON_FORCE_IMPLEMENTATION=icelake ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=haswell ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=westmere ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=fallback ctest $CTEST_FLAGS -L per_implementation
@@ -99,11 +60,12 @@ steps:
     CC: gcc
     CXX: g++
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake
+    - apt-get -t buster-backports install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -120,9 +82,9 @@ steps:
   environment:
     CC: clang-9
     CXX: clang++-9
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
     BUILD_FLAGS: -- -j
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
     - mkdir build
     - cd build
@@ -140,16 +102,18 @@ steps:
     CC: gcc
     CXX: g++
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=icelake;haswell;westmere;fallback
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake
+    - apt-get -t buster-backports install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
     - cmake --build . $BUILD_FLAGS
     - ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L acceptance -LE per_implementation
+    - SIMDJSON_FORCE_IMPLEMENTATION=icelake ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=haswell ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=westmere ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=fallback ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
@@ -165,21 +129,43 @@ steps:
   environment:
     CC: clang-9
     CXX: clang++-9
-    CMAKE_FLAGS: -DSIMDJSON_SANITIZE=ON
+    CMAKE_FLAGS: -DSIMDJSON_SANITIZE=ON -DSIMDJSON_IMPLEMENTATION=icelake;haswell;westmere;fallback
     BUILD_FLAGS: -- -j
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
     - cmake --build . $BUILD_FLAGS
     - ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L acceptance -LE per_implementation
+    - SIMDJSON_FORCE_IMPLEMENTATION=icelake ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=haswell ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=westmere ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - SIMDJSON_FORCE_IMPLEMENTATION=fallback ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -L per_implementation
     - ASAN_OPTIONS="detect_leaks=0" ctest $CTEST_FLAGS -LE "acceptance|per_implementation" # Everything we haven't run yet, run now.
 ---
 kind: pipeline
+name: cpp20-clang11-libcpp
+platform: { os: linux, arch: amd64 }
+steps:
+- name: Build and Test
+  image: pauldreik/llvm-11
+  user: root
+  environment:
+    CC: clang-11
+    CXX: clang++-11
+    CMAKE_FLAGS: -GNinja
+    BUILD_FLAGS:
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
+    CXXFLAGS: -std=c++20 -stdlib=libc++
+  commands:
+    - mkdir build
+    - cd build
+    - cmake $CMAKE_FLAGS ..
+    - cmake --build . $BUILD_FLAGS
+    - ctest $CTEST_FLAGS
+---
+kind: pipeline
 name: arm64-gcc8
 platform: { os: linux, arch: arm64 }
 steps:
@@ -189,11 +175,12 @@ steps:
     CC: gcc
     CXX: g++
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=arm64;fallback
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake
+    - apt-get -t buster-backports install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -208,16 +195,17 @@ name: arm64-clang6
 platform: { os: linux, arch: arm64 }
 steps:
 - name: Build and Test
-  image: ubuntu:18.04
+  image: debian:buster-backports
   environment:
     CC: clang-6.0
     CXX: clang++-6.0
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
     BUILD_FLAGS: -- -j
-    CTEST_FLAGS: -j4 --output-on-failure  -E checkperf
+    CTEST_FLAGS: -j4 --output-on-failure  -LE explicitonly
   commands:
-    - apt-get update -qq
-    - apt-get install -y clang cmake git
+    - apt-get -qq update
+    - apt-get -t buster-backports install -y cmake
+    - apt-get install -y clang-6.0 git
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -234,11 +222,12 @@ steps:
     CC: gcc
     CXX: g++
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake
+    - apt-get -t buster-backports install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -250,16 +239,17 @@ name: arm64-dynamic-clang6
 platform: { os: linux, arch: arm64 }
 steps:
 - name: Build and Test
-  image: ubuntu:18.04
+  image: debian:buster-backports
   environment:
     CC: clang-6.0
     CXX: clang++-6.0
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=OFF
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
     BUILD_FLAGS: -- -j
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
-    - apt-get update -qq
-    - apt-get install -y clang cmake git
+    - apt-get -qq update
+    - apt-get -t buster-backports install -y cmake
+    - apt-get install -y clang-6.0 git
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -274,13 +264,15 @@ steps:
   image: gcc:8
   environment:
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=arm64;fallback
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
     CC: gcc
     CXX: g++
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake libstdc++6
+    - apt-get -t buster-backports install -y cmake
+    - apt-get install -y libstdc++6
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -295,16 +287,17 @@ name: arm64-sanitize-clang6
 platform: { os: linux, arch: arm64 }
 steps:
 - name: Build and Test
-  image: ubuntu:18.04
+  image: debian:buster-backports
   environment:
     CC: clang-6.0
     CXX: clang++-6.0
-    CMAKE_FLAGS: -DSIMDJSON_SANITIZE=ON
+    CMAKE_FLAGS: -DSIMDJSON_SANITIZE=ON -DSIMDJSON_IMPLEMENTATION=arm64;fallback
     BUILD_FLAGS: -- -j
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
-    - apt-get update -qq
-    - apt-get install -y clang cmake git
+    - apt-get -qq update
+    - apt-get -t buster-backports install -y cmake
+    - apt-get install -y clang-6.0 git
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -325,12 +318,10 @@ steps:
     CC: clang-9
     CXX: clang++-9
     BUILD_FLAGS: -- -j 4
-    CMAKE_FLAGS: -GNinja -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure
+    CMAKE_FLAGS: -GNinja -DBUILD_SHARED_LIBS=OFF
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
     CXXFLAGS: -stdlib=libc++
   commands:
-    - apt-get update -qq
-    - apt-get install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -348,12 +339,31 @@ steps:
     CC: clang-9
     CXX: clang++-9
     BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DSIMDJSON_BUILD_STATIC=ON
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
+    CXXFLAGS: -stdlib=libc++
+  commands:
+    - mkdir build
+    - cd build
+    - cmake $CMAKE_FLAGS ..
+    - cmake --build . $BUILD_FLAGS
+    - ctest $CTEST_FLAGS
+---
+kind: pipeline
+name: libcpp-clang7
+platform: { os: linux, arch: amd64 }
+steps:
+- name: Build and Test
+  image: conanio/clang7
+  user: root
+  environment:
+    CC: clang-7
+    CXX: clang++-7
+    BUILD_FLAGS: -- -j
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
     CXXFLAGS: -stdlib=libc++
   commands:
-    - apt-get update -qq
-    - apt-get install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -371,10 +381,11 @@ steps:
     CXX: g++
     BUILD_FLAGS: -- -j
     CMAKE_FLAGS: -DSIMDJSON_EXCEPTIONS=OFF
-    CTEST_FLAGS: -j4 --output-on-failure -E checkperf
+    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
   commands:
+    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
     - apt-get update -qq
-    - apt-get install -y cmake
+    - apt-get -t buster-backports install -y cmake
     - mkdir build
     - cd build
     - cmake $CMAKE_FLAGS ..
@@ -382,6 +393,26 @@ steps:
     - ctest $CTEST_FLAGS
 ---
 kind: pipeline
+name: arm64-fuzz
+platform: { os: linux, arch: arm64 }
+steps:
+- name: Build and run fuzzers shortly
+  image: ubuntu:20.04
+  environment:
+    CC: clang
+    CXX: clang++
+    DEBIAN_FRONTEND: noninteractive
+    ASAN_OPTIONS: detect_leaks=0
+  commands:
+    - apt-get -qq update
+    - apt-get install -q -y clang cmake git wget zip ninja-build
+    - wget -O corpus.tar.gz https://readonly:readonly@www.pauldreik.se/fuzzdata/index.php?project=simdjson
+    - tar xf corpus.tar.gz && rm corpus.tar.gz
+    - fuzz/build_like_ossfuzz.sh
+    - mkdir -p common_out
+    - for fuzzer in build/fuzz/fuzz_* ; do echo $fuzzer;$fuzzer common_out out/* -max_total_time=40; done
+---
+kind: pipeline
 name: stylecheck
 platform: { os: linux, arch: amd64 }
 steps:

.gitattributes

@@ -3,7 +3,7 @@
 * text=auto
 
 # we don't want json files to be modified for this project
-*.json binary 
+*.json binary diff=astextplain
 
 
 # Common settings that generally should always be used with your language specific settings
@@ -80,15 +80,15 @@
 .gitignore     export-ignore
 
 # Sources
-*.c     text diff=c
-*.cc    text diff=cpp
-*.cxx   text diff=cpp
-*.cpp   text diff=cpp
-*.c++   text diff=cpp
-*.hpp   text diff=cpp
-*.h     text diff=c
-*.h++   text diff=cpp
-*.hh    text diff=cpp
+*.c     text eol=lf diff=c
+*.cc    text eol=lf diff=cpp
+*.cxx   text eol=lf diff=cpp
+*.cpp   text eol=lf diff=cpp
+*.c++   text eol=lf diff=cpp
+*.hpp   text eol=lf diff=cpp
+*.h     text eol=lf diff=c
+*.h++   text eol=lf diff=cpp
+*.hh    text eol=lf diff=cpp
 
 # Compiled Object files
 *.slo   binary

.github/ISSUE_TEMPLATE/bug_report.md

@@ -2,7 +2,7 @@
 name: Bug report
 about: Create a report to help us improve
 title: ''
-labels: bug
+labels: bug (unverified)
 assignees: ''
 
 ---
@@ -12,22 +12,45 @@ Before submitting an issue, please ensure that you have read the documentation:
 * Basics is an overview of how to use simdjson and its APIs: https://github.com/simdjson/simdjson/blob/master/doc/basics.md
 * Performance shows some more advanced scenarios and how to tune for them: https://github.com/simdjson/simdjson/blob/master/doc/performance.md
 * Contributing: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md
+* We follow the [JSON specification as described by RFC 8259](https://www.rfc-editor.org/rfc/rfc8259.txt) (T. Bray, 2017).
 
 
 **Describe the bug**
 A clear and concise description of what the bug is.
 
+A compiler or static-analyzer warning is not a bug.
+
+We are committed to providing good documentation. We accept the lack of documentation or a misleading documentation as a bug (a 'documentation bug').
+
+We accept the identification of an issue by a sanitizer or some checker tool (e.g., valgrind) as a bug, but you must first ensure that it is not a false positive.
+
+We recommend that you run your tests using different optimization levels.
+
+Before reporting a bug, please ensure that you have read our documentation.
+
 **To Reproduce**
 Steps to reproduce the behaviour: provide a code sample if possible.
 
-**Configuration (please complete the following information if relevant):**
+If we cannot reproduce the issue, then we cannot address it. Note that a stack trace from your own program is not enough. A sample of your source code is insufficient: please provide a complete test for us to reproduce the issue. Please reduce the issue: use as small and as simple an example of the bug as possible.
+
+It should be possible to trigger the bug by using solely simdjson with our default build setup. If you can only observe the bug within some specific context, with some other software, please reduce the issue first.
+
+**simjson release**
+
+Unless you plan to contribute to simdjson, you should only work from releases. Please be mindful that our main branch may have additional features, bugs and documentation items.
+
+It is fine to report bugs against our main branch, but if that is what you are doing, please be explicit.
+
+**Configuration (please complete the following information if relevant)**
  - OS: [e.g. Ubuntu 16.04.6 LTS]
  - Compiler [e.g. Apple clang version 11.0.3 (clang-1103.0.32.59) x86_64-apple-darwin19.4.0]
  - Version [e.g. 22]
+ - Optimization setting (e.g., -O3)
 
+We support up-to-date 64-bit ARM and x64 FreeBSD, macOS, Windows and Linux systems. Please ensure that your configuration is supported before labelling the issue as a bug. In particular, we do not support legacy 32-bit systems.
 
 **Indicate whether you are willing or able to provide a bug fix as a pull request**
 
-If you plan to contribute to simdjson, please read our 
+If you plan to contribute to simdjson, please read our
 * CONTRIBUTING guide: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md and our
 * HACKING guide: https://github.com/simdjson/simdjson/blob/master/HACKING.md

.github/ISSUE_TEMPLATE/feature_request.md

@@ -2,7 +2,7 @@
 name: Feature request
 about: Suggest an idea for this project
 title: ''
-labels: feature request
+labels: ''
 assignees: ''
 
 ---
@@ -12,6 +12,7 @@ Before submitting an issue, please ensure that you have read the documentation:
 * Basics is an overview of how to use simdjson and its APIs: https://github.com/simdjson/simdjson/blob/master/doc/basics.md
 * Performance shows some more advanced scenarios and how to tune for them: https://github.com/simdjson/simdjson/blob/master/doc/performance.md
 * Contributing: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md
+* We follow the [JSON specification as described by RFC 8259](https://www.rfc-editor.org/rfc/rfc8259.txt) (T. Bray, 2017).
 
 We do not make changes to simdjson without clearly identifiable benefits, which typically means either performance improvements, bug fixes or new features. Avoid bike-shedding: we all have opinions about how to write code, but we want to focus on what makes simdjson objectively better.
 
@@ -31,6 +32,6 @@ A clear and concise description of any alternative solutions or features you've
 Add any other context or screenshots about the feature request here.
 
 ** Are you willing to contribute code or documentation toward this new feature? **
-If you plan to contribute to simdjson, please read our 
+If you plan to contribute to simdjson, please read our
 * CONTRIBUTING guide: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md and our
 * HACKING guide: https://github.com/simdjson/simdjson/blob/master/HACKING.md

.github/ISSUE_TEMPLATE/standard-issue-template.md

@@ -12,6 +12,7 @@ Before submitting an issue, please ensure that you have read the documentation:
 * Basics is an overview of how to use simdjson and its APIs: https://github.com/simdjson/simdjson/blob/master/doc/basics.md
 * Performance shows some more advanced scenarios and how to tune for them: https://github.com/simdjson/simdjson/blob/master/doc/performance.md
 * Contributing: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md
+* We follow the [JSON specification as described by RFC 8259](https://www.rfc-editor.org/rfc/rfc8259.txt) (T. Bray, 2017).
 
 We do not make changes to simdjson without clearly identifiable benefits, which typically means either performance improvements, bug fixes or new features. Avoid bike-shedding: we all have opinions about how to write code, but we want to focus on what makes simdjson objectively better.
 
@@ -26,6 +27,6 @@ Is your issue:
 4. A documentation issue? Can you suggest an improvement?
 
 
-If you plan to contribute to simdjson, please read our 
+If you plan to contribute to simdjson, please read our
 * CONTRIBUTING guide: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md and our
 * HACKING guide: https://github.com/simdjson/simdjson/blob/master/HACKING.md

.github/pull_request_template.md

@@ -0,0 +1,8 @@
+
+
+Our tests check whether you have introduced trailing white space. If such a test fails, please check the "artifacts button" above, which if you click it gives a link to a downloadable file to help you identify the issue. You can also run scripts/remove_trailing_whitespace.sh locally if you have a bash shell and the sed command available on your system.
+
+If you plan to contribute to simdjson, please read our
+
+CONTRIBUTING guide: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md and our
+HACKING guide: https://github.com/simdjson/simdjson/blob/master/HACKING.md

.github/workflows/alpine.yml

@@ -0,0 +1,34 @@
+name: Alpine Linux
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: start docker
+        run: |
+          docker run -w /src -dit --name alpine -v $PWD:/src alpine:latest
+          echo 'docker exec alpine "$@";' > ./alpine.sh
+          chmod +x ./alpine.sh
+      - name: install packages
+        run: |
+          ./alpine.sh apk update
+          ./alpine.sh apk add build-base cmake g++ linux-headers git bash
+      - name: cmake
+        run: |
+          ./alpine.sh cmake -DSIMDJSON_DEVELOPER_MODE=ON -B build_for_alpine
+      - name: build
+        run: |
+          ./alpine.sh cmake --build build_for_alpine
+      - name: test
+        run: |
+          ./alpine.sh bash -c "cd build_for_alpine && ctest  -LE explicitonly"

.github/workflows/cifuzz.yml

@@ -0,0 +1,24 @@
+name: CIFuzz
+on: [pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'simdjson'
+        dry-run: false
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'simdjson'
+        fuzz-seconds: 600
+        dry-run: false
+    - name: Upload Crash
+      uses: actions/upload-artifact@v1
+      if: failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts

.github/workflows/fix-trailing-whitespace.yml

@@ -0,0 +1,34 @@
+name: Detect trailing whitespace
+
+on: [push, pull_request]
+
+jobs:
+  whitespace:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Remove whitespace and check the diff
+        run: |
+          set -eu
+          scripts/remove_trailing_whitespace.sh
+          git diff >whitespace.patch
+          cat whitespace.patch
+          if [ $(wc -c <whitespace.patch) -ne 0 ] ; then
+             echo " !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! "
+             echo "You have trailing whitespace, please download the artifact"
+             echo "and apply with git apply <whitespace.patch or"
+             echo "run scripts/remove_trailing_whitespace.sh locally."
+             echo " !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! "
+             exit 1
+          else
+             echo "no trailing whitespace found, good!"
+          fi
+      - name: Archive whitespace patch
+        uses: actions/upload-artifact@v2
+        if: always()
+        with:
+          name: whitespace-patch
+          path: |
+            whitespace.patch
+          if-no-files-found: ignore
+

.github/workflows/fuzzers.yml

@@ -1,21 +1,33 @@
-name: Run fuzzers on stored corpus and test it with valgrind
+name: Fuzz and run valgrind
 
-# In the case of a pull request happening at the same time as a cron
-# job, there is a risk two jobs run at the same time. Therefore,
-# the corpus is only uploaded for the master branch. Pull requests will
-# fuzz for a short while, but the results are not uploaded.
 on:
   push:
+    branches:
+      - master
   pull_request:
+    branches:
+      - master
   schedule:
     - cron: 23 */8 * * *
 
 jobs:
-  build:    
+  build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-latest
     env:
-      allfuzzers: parser dump dump_raw_tape print_json
-      artifactsprefix: -artifact_prefix=fuzzfailure/
+      # fuzzers that change behaviour with SIMDJSON_FORCE_IMPLEMENTATION
+      defaultimplfuzzers: atpointer dump dump_raw_tape element minify parser print_json
+      # fuzzers that loop over the implementations themselves, or don't need to switch.
+      implfuzzers: implementations minifyimpl ndjson ondemand padded utf8
+      implementations: haswell westmere fallback
+      UBSAN_OPTIONS: halt_on_error=1
+      MAXLEN: -max_len=4000
+      CLANGVERSION: 11
+      # which optimization level to use for the sanitizer build (see build_fuzzer.variants.sh)
+      OPTLEVEL: -O3
+
     steps:
     - name: Install packages necessary for building
       run: |
@@ -23,105 +35,132 @@ jobs:
         sudo apt-get install --quiet ninja-build valgrind zip unzip
         wget https://apt.llvm.org/llvm.sh
         chmod +x llvm.sh
-        sudo ./llvm.sh 9
+        sudo ./llvm.sh $CLANGVERSION
 
     - uses: actions/checkout@v1
+
+    - uses: actions/cache@v2
+      with:
+        path: dependencies/.cache
+        key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+
+    - uses: actions/cache@v2
+      id: cache-corpus
+      with:
+        path: out/
+        key: corpus-${{ github.run_id }}
+        restore-keys: corpus-
+    
+    - name: show statistics for the cached corpus
+      run: |
+        echo number of files in github action corpus cache:
+        find out -type f |wc -l
+    
     - name: Create and prepare the initial seed corpus
       run: |
         fuzz/build_corpus.sh
         mv corpus.zip seed_corpus.zip
-    - name: Download the corpus from the last run
-      run: |
-        wget --quiet https://dl.bintray.com/pauldreik/simdjson-fuzz-corpus/corpus/corpus.tar
-        tar xf corpus.tar
-        rm corpus.tar
+        mkdir seedcorpus
+        unzip -q -d seedcorpus seed_corpus.zip
+
     - name: List clang versions
       run: |
         ls /usr/bin/clang*
         which clang++
         clang++ --version
+
     - name: Build all the variants
-      run: fuzz/build_fuzzer_variants.sh
-    - name: Verify that the oss-fuzz seed corpus passes without problems
+      run: CLANGSUFFIX=-$CLANGVERSION fuzz/build_fuzzer_variants.sh
+
+    - name: Explore fast (release build, default implementation)
       run: |
-        mkdir seedcorpus
-        unzip -q -d seedcorpus seed_corpus.zip
-        for buildvariant in noavx withavx; do
-          for fuzzer in $allfuzzers; do
-            build-ossfuzz-$buildvariant/fuzz/fuzz_$fuzzer seedcorpus -max_total_time=1
+        set -eux
+        for fuzzer in $defaultimplfuzzers $implfuzzers; do
+          mkdir -p out/$fuzzer # in case this is a new fuzzer, or the github action cached corpus is broken
+          # get input from everyone else (corpus cross pollination)
+          others=$(find out -type d -not -name $fuzzer -not -name out -not -name cmin)
+          build-fast/fuzz/fuzz_$fuzzer out/$fuzzer $others seedcorpus -max_total_time=30 $MAXLEN
+        done
+
+    - name: Fuzz default impl. fuzzers with sanitizer+asserts (good at detecting errors)
+      run: |
+        set -eux
+        for fuzzer in $defaultimplfuzzers; do
+          # get input from everyone else (corpus cross pollination)
+          others=$(find out -type d -not -name $fuzzer -not -name out -not -name cmin)
+          for implementation in $implementations; do
+            export SIMDJSON_FORCE_IMPLEMENTATION=$implementation
+            build-sanitizers$OPTLEVEL/fuzz/fuzz_$fuzzer out/$fuzzer $others seedcorpus -max_total_time=20 $MAXLEN
           done
-        done
-    - name: Run the fastest fuzzer to explore fast
-      run: |
-        for fuzzer in $allfuzzers; do
-          mkdir -p out/$fuzzer # in case this is a new fuzzer, or corpus.tar is broken
-          build-ossfuzz-fast9/fuzz/fuzz_$fuzzer         out/$fuzzer -max_total_time=30 $artifactsprefix || touch failed
-          # make sure the failing output is visible in the log
-          if [ -e failed ] ; then
-            ls fuzzfailure/* |xargs -n1 base64
-            exit 1
-          fi
-        done
-    - name: Run the other fuzzer variants for $fuzzer, with sanitizers etc
-      run: |
-        set -x
-        for fuzzer in $allfuzzers; do
-          build-ossfuzz-withavx/fuzz/fuzz_$fuzzer       out/$fuzzer -max_total_time=20 $artifactsprefix || touch failed
-          build-ossfuzz-noavx/fuzz/fuzz_$fuzzer         out/$fuzzer -max_total_time=10 $artifactsprefix || touch failed
-          build-ossfuzz-noavx9/fuzz/fuzz_$fuzzer        out/$fuzzer -max_total_time=10 $artifactsprefix || touch failed
-          if [ -e failed ] ; then
-            # make sure the failing output is visible in the log
-            ls fuzzfailure/* |xargs -n1 base64
-            exit 1
-          fi
-          echo disable msan runs, it fails inside the fuzzing engine and not the fuzzed code!
-          echo build-ossfuzz-msan-noavx9/fuzz/fuzz_$fuzzer   out/$fuzzer -max_total_time=10 -reload=0 $artifactsprefix
-          echo build-ossfuzz-msan-withavx9/fuzz/fuzz_$fuzzer out/$fuzzer -max_total_time=10 -reload=0 $artifactsprefix
           echo now have $(ls out/$fuzzer |wc -l) files in corpus        
         done
-    - name: Minimize the corpus with the fast fuzzer
+
+    - name: Fuzz differential impl. fuzzers with sanitizer+asserts (good at detecting errors)
       run: |
-        for fuzzer in $allfuzzers; do      
+        set -eux
+        for fuzzer in $implfuzzers; do
+          # get input from everyone else (corpus cross pollination)
+          others=$(find out -type d -not -name $fuzzer -not -name out -not -name cmin)
+          build-sanitizers$OPTLEVEL/fuzz/fuzz_$fuzzer out/$fuzzer $others seedcorpus -max_total_time=20 $MAXLEN
+          echo now have $(ls out/$fuzzer |wc -l) files in corpus
+        done
+
+    - name: Minimize the corpus with the fast fuzzer on the default implementation
+      run: |
+        set -eux
+        for fuzzer in $defaultimplfuzzers $implfuzzers; do
           mkdir -p out/cmin/$fuzzer
-          build-ossfuzz-fast9/fuzz/fuzz_$fuzzer -merge=1  out/cmin/$fuzzer out/$fuzzer
+          # get input from everyone else (corpus cross pollination)
+          others=$(find out -type d -not -name $fuzzer -not -name out -not -name cmin)
+          build-fast/fuzz/fuzz_$fuzzer -merge=1 $MAXLEN out/cmin/$fuzzer out/$fuzzer $others seedcorpus
           rm -rf out/$fuzzer
           mv out/cmin/$fuzzer out/$fuzzer
         done
+
     - name: Package the corpus into an artifact
       run: |
-        for fuzzer in $allfuzzers; do      
+        for fuzzer in $defaultimplfuzzers $implfuzzers; do      
           tar rf corpus.tar out/$fuzzer
         done
+
     - name: Save the corpus as a github artifact
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v2
       with:
         name: corpus
         path: corpus.tar
-    - name: Run the corpus through valgrind (normal build)
+
+    - name: Store the corpus externally
       run: |
-        for fuzzer in $allfuzzers; do      
-          find out/$fuzzer -type f |sort|xargs valgrind build-plain-noavx/fuzz/fuzz_$fuzzer  2>&1|tee valgrind-$fuzzer-noavx.txt
-        done
-    - name: Run the corpus through valgrind (noavx build)
+        gzip --keep corpus.tar
+        curl -F"filedata=@corpus.tar.gz" https://simdjson:${{ secrets.fuzzdatapassword }}@www.pauldreik.se/fuzzdata/index.php
+
+    # This takes a subset of the minimized corpus and run it through valgrind. It is slow,
+    # therefore take a "random" subset. The random selection is accomplished by sorting on filenames,
+    # which are hashes of the content.
+    - name: Run some of the minimized corpus through valgrind (replay build, default implementation)
       run: |
-        for fuzzer in $allfuzzers; do      
-          find out/$fuzzer -type f |sort|xargs valgrind build-plain-normal/fuzz/fuzz_$fuzzer 2>&1|tee valgrind-$fuzzer-normal.txt      
-        done  
+        for fuzzer in $defaultimplfuzzers $implfuzzers; do
+          find out/$fuzzer -type f |sort|head -n200|xargs -n40 valgrind build-replay/fuzz/fuzz_$fuzzer 2>&1|tee valgrind-$fuzzer.txt
+        done 
+
     - name: Compress the valgrind output
       run: tar cf valgrind.tar valgrind-*.txt
+
     - name: Save valgrind output as a github artifact
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v2
+      if: always()
       with:
         name: valgrindresults
         path: valgrind.tar
-    - name: Upload the corpus and results to bintray if we are on master
-      run: |
-        if [ $(git rev-parse --verify HEAD) = $(git rev-parse --verify origin/master) ] ; then
-          echo uploading each artifact twice, otherwise it will not be published
-          curl -T corpus.tar -upauldreik:${{ secrets.bintrayApiKey }} https://api.bintray.com/content/pauldreik/simdjson-fuzz-corpus/corpus/0/corpus/corpus.tar";publish=1;override=1"
-          curl -T corpus.tar -upauldreik:${{ secrets.bintrayApiKey }} https://api.bintray.com/content/pauldreik/simdjson-fuzz-corpus/corpus/0/corpus/corpus.tar";publish=1;override=1"
-          curl -T valgrind.tar -upauldreik:${{ secrets.bintrayApiKey }} https://api.bintray.com/content/pauldreik/simdjson-fuzz-corpus/corpus/0/corpus/valgrind.tar";publish=1;override=1"
-          curl -T valgrind.tar -upauldreik:${{ secrets.bintrayApiKey }} https://api.bintray.com/content/pauldreik/simdjson-fuzz-corpus/corpus/0/corpus/valgrind.tar";publish=1;override=1"
-        else
-          echo "not on master, won't upload to bintray"
-        fi
+        if-no-files-found: ignore
+
+    - name: Archive any crashes as an artifact
+      uses: actions/upload-artifact@v2
+      if: always()
+      with:
+        name: crashes
+        path: |
+          crash-*
+          leak-*
+          timeout-*
+        if-no-files-found: ignore

.github/workflows/macos-11.yml

@@ -0,0 +1,34 @@
+name: Macos (Xcode 11)
+
+on: [push, pull_request]
+
+jobs:
+  macos-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          xcversion select 11.7
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cd .. &&
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cmake --install . &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json &&
+          cd ../tests/installation_tests/find &&
+          mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX:PATH=../../../build/destination .. &&  cmake --build .

.github/workflows/macos.yml

@@ -0,0 +1,33 @@
+name: Macos
+
+on: [push, pull_request]
+
+jobs:
+  macos-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cd .. &&
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cmake --install . &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json &&
+          cd ../tests/installation_tests/find &&
+          mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX:PATH=../../../build/destination .. &&  cmake --build .

.github/workflows/msys2-clang.yml

@@ -0,0 +1,43 @@
+name: MSYS2-CLANG-CI
+
+on: [push, pull_request]
+
+
+jobs:
+  windows-mingw:
+    name: ${{ matrix.msystem }}
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - msystem: "MINGW64"
+            install: mingw-w64-x86_64-libxml2 mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-clang
+            type: Release
+          - msystem: "MINGW64"
+            install: mingw-w64-x86_64-libxml2 mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-clang
+            type: Debug
+    env:
+      CMAKE_GENERATOR: Ninja
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          msystem: ${{ matrix.msystem }}
+          install: ${{ matrix.install }}
+      - name: Build and Test
+        run: |
+          mkdir build
+          cd build
+          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=${{ matrix.type }} -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_DO_NOT_USE_THREADS_NO_MATTER_WHAT=ON ..
+          cmake --build . --verbose
+          ctest -j4 --output-on-failure -LE explicitonly

.github/workflows/msys2.yml

@@ -0,0 +1,45 @@
+name: MSYS2-CI
+
+on: [push, pull_request]
+
+jobs:
+  windows-mingw:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    name: ${{ matrix.msystem }}
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - msystem: "MINGW64"
+            install: mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-gcc
+            type: Release
+          - msystem: "MINGW64"
+            install: mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-gcc
+            type: Debug
+    env:
+      CMAKE_GENERATOR: Ninja
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          msystem: ${{ matrix.msystem }}
+          install: ${{ matrix.install }}
+      - name: Build and Test
+        run: |
+          mkdir build
+          cd build
+          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DCMAKE_BUILD_TYPE=${{ matrix.type }} -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_DO_NOT_USE_THREADS_NO_MATTER_WHAT=ON ..
+          cmake --build . --verbose
+          ctest -j4 --output-on-failure -LE explicitonly

.github/workflows/power-fuzz.yml

@@ -0,0 +1,71 @@
+name: short fuzz on the power arch
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  armv7_job:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    # The host should always be Linux
+    runs-on: ubuntu-20.04
+    name: Build on ubuntu-20.04 ppc64le
+    steps:
+      - uses: actions/checkout@v2.1.0
+      - uses: uraimo/run-on-arch-action@v2.0.5
+        name: Run commands
+        id: runcmd
+        env:
+          DEBIAN_FRONTEND: noninteractive
+        with:
+          arch: ppc64le
+          distro: buster
+
+          # Not required, but speeds up builds by storing container images in
+          # a GitHub package registry.
+          githubToken: ${{ github.token }}
+
+          run: |
+            export CLANGSUFFIX="-7"
+            apt-get -qq update
+            apt-get install -q -y clang-7 libfuzzer-7-dev git wget zip ninja-build gnupg software-properties-common
+            wget -q -O - "https://raw.githubusercontent.com/simdjson/debian-ppa/master/key.gpg" | apt-key add -
+            apt-add-repository "deb https://raw.githubusercontent.com/simdjson/debian-ppa/master simdjson main"
+            apt-get -qq update
+            apt-get purge cmake cmake-data
+            apt-get -t simdjson -y install cmake
+            mkdir -p build ; cd build
+            cmake .. -GNinja \
+                  -DCMAKE_CXX_COMPILER=clang++$CLANGSUFFIX \
+                  -DCMAKE_C_COMPILER=clang$CLANGSUFFIX \
+                  -DBUILD_SHARED_LIBS=OFF \
+                  -DSIMDJSON_DEVELOPER_MODE=ON \
+                  -DSIMDJSON_ENABLE_FUZZING=On \
+                  -DSIMDJSON_COMPETITION=OFF \
+                  -DSIMDJSON_GOOGLE_BENCHMARKS=OFF \
+                  -DSIMDJSON_DISABLE_DEPRECATED_API=On \
+                  -DSIMDJSON_FUZZ_LDFLAGS=-lFuzzer \
+                  -DCMAKE_CXX_FLAGS="-fsanitize=fuzzer-no-link -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=" \
+                  -DCMAKE_C_FLAGS="-fsanitize=fuzzer-no-link" \
+                  -DCMAKE_BUILD_TYPE=Release \
+                  -DSIMDJSON_FUZZ_LINKMAIN=Off
+            cd ..
+            builddir=build
+            cmake --build $builddir
+            wget -O corpus.tar.gz https://readonly:readonly@www.pauldreik.se/fuzzdata/index.php?project=simdjson
+            tar xf corpus.tar.gz
+            fuzzernames=$(cmake --build $builddir --target print_all_fuzzernames |tail -n1)
+            for fuzzer in $fuzzernames ; do
+               exe=$builddir/fuzz/$fuzzer
+               shortname=$(echo $fuzzer |cut -f2- -d_)
+               echo found fuzzer $shortname with executable $exe
+               mkdir -p out/$shortname
+               others=$(find out -type d -not -name $shortname -not -name out -not -name cmin)
+               $exe -max_total_time=20  -max_len=4000 out/$shortname $others
+               echo "*************************************************************************"
+            done
+            echo "all is good, no errors found in any of these fuzzers: $fuzzernames"

.github/workflows/ubuntu18-checkperf.yml

@@ -0,0 +1,29 @@
+name: Performance check on Ubuntu 18.04 CI (GCC 7)
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_ENABLE_DOM_CHECKPERF=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build . --target checkperf  &&
+          ctest --output-on-failure -R checkperf  ubuntu18-checkperf.yml

.github/workflows/ubuntu18-oldclang.yml

@@ -0,0 +1,31 @@
+name: Ubuntu 18.04 CI (LLVM 7)
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-18.04
+
+    env:
+      CC: clang-7
+      CXX: clang++-7
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: install clang 7
+        run: |
+          sudo apt update
+          sudo apt install clang-7
+      - name: Use cmake
+        run: |
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly

.github/workflows/ubuntu18-threadsani.yml

@@ -0,0 +1,25 @@
+name: Ubuntu 18.04 CI (GCC 7) with Thread Sanitizer
+
+on: [push, pull_request]
+
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_SANITIZE_THREADS=ON ..  &&
+          cmake --build . --target document_stream_tests --target ondemand_document_stream_tests --target parse_many_test  &&
+          ctest --output-on-failure  -R parse_many_test  &&
+          ctest --output-on-failure  -R document_stream_tests

.github/workflows/ubuntu18.yml

@@ -0,0 +1,25 @@
+name: Ubuntu 18.04 CI (GCC 7)
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          make install  &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json

.github/workflows/ubuntu20-checkperf.yml

@@ -0,0 +1,29 @@
+name: Performance check on Ubuntu 20.04 CI (GCC 9)
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_ENABLE_DOM_CHECKPERF=ON -DCMAKE_CXX_FLAGS="-Werror=old-style-cast -pedantic -Wpedantic" -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build . --target checkperf  &&
+          ctest --output-on-failure -R checkperf

.github/workflows/ubuntu20-noexcept.yml

@@ -0,0 +1,34 @@
+name: Ubuntu 20.04 CI (GCC 9) without exceptions
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_EXCEPTIONS=OFF -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cd .. &&
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_EXCEPTIONS=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          make install  &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json &&
+          mkdir testfindpackage &&
+          cd testfindpackage &&
+          echo -e 'cmake_minimum_required(VERSION 3.1)\nproject(simdjsontester)\nset(CMAKE_CXX_STANDARD 17)\nfind_package(simdjson REQUIRED)'> CMakeLists.txt && mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX:PATH=../destination .. &&  cmake --build .

.github/workflows/ubuntu20-nothread.yml

@@ -0,0 +1,34 @@
+name: Ubuntu 20.04 CI (GCC 9) Without Threads
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF  -DSIMDJSON_ENABLE_THREADS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cd .. &&
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_ENABLE_THREADS=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          make install  &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json &&
+          mkdir testfindpackage &&
+          cd testfindpackage &&
+          echo -e 'cmake_minimum_required(VERSION 3.1)\nproject(simdjsontester)\nset(CMAKE_CXX_STANDARD 17)\nfind_package(simdjson REQUIRED)'> CMakeLists.txt && mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX:PATH=../destination .. &&  cmake --build .

.github/workflows/ubuntu20-sani.yml

@@ -0,0 +1,23 @@
+name: Ubuntu 20.04 CI (GCC 9) With Memory Sanitizer
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DSIMDJSON_SANITIZE=ON -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly

.github/workflows/ubuntu20-threadsani.yml

@@ -0,0 +1,24 @@
+name: Ubuntu 20.04 CI (GCC 9) with Thread Sanitizer
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_SANITIZE_THREADS=ON ..  &&
+          cmake --build . --target document_stream_tests  --target ondemand_document_stream_tests --target parse_many_test  &&
+          ctest --output-on-failure  -R parse_many_test  &&
+          ctest --output-on-failure  -R document_stream_tests

.github/workflows/ubuntu20.yml

@@ -0,0 +1,33 @@
+name: Ubuntu 20.04 CI (GCC 9)
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cd .. &&
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cmake --install . &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json &&
+          cd ../tests/installation_tests/find &&
+          mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX:PATH=../../../build/destination .. &&  cmake --build .

.github/workflows/ubuntu22.yml

@@ -0,0 +1,33 @@
+name: Ubuntu 22.04 CI (GCC 11)
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu-build:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: dependencies/.cache
+          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+      - name: Use cmake
+        run: |
+          mkdir builddebug &&
+          cd builddebug &&
+          cmake -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cd .. &&
+          mkdir build &&
+          cd build &&
+          cmake  -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake --build .   &&
+          ctest -j --output-on-failure -LE explicitonly   &&
+          cmake --install . &&
+          echo -e '#include <simdjson.h>\nint main(int argc,char**argv) {simdjson::dom::parser parser;simdjson::dom::element tweets = parser.load(argv[1]); }' > tmp.cpp && c++ -Idestination/include -Ldestination/lib -std=c++17 -Wl,-rpath,destination/lib -o linkandrun tmp.cpp -lsimdjson && ./linkandrun jsonexamples/twitter.json &&
+          cd ../tests/installation_tests/find &&
+          mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX:PATH=../../../build/destination .. &&  cmake --build .

.github/workflows/vs17-arm-ci.yml

@@ -0,0 +1,21 @@
+name: VS17-ARM-CI
+
+on: [push, pull_request]
+
+jobs:
+   ci:
+     name: windows-vs17
+     runs-on: windows-latest
+     strategy:
+       fail-fast: false
+       matrix:
+         include:
+           - {arch: ARM}
+           - {arch: ARM64}
+     steps:
+       - name: checkout
+         uses: actions/checkout@v2
+       - name: Use cmake
+         run: |
+           cmake -A ${{ matrix.arch }} -DCMAKE_CROSSCOMPILING=1 -DSIMDJSON_DEVELOPER_MODE=ON -D SIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_EXCEPTIONS=OFF -B build  &&
+           cmake --build build --verbose

.github/workflows/vs17-ci.yml

@@ -0,0 +1,44 @@
+name: VS17-CI
+
+on: [push, pull_request]
+
+jobs:
+  ci:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    name: windows-vs17
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - {gen: Visual Studio 17 2022, arch: Win32, shared: ON}
+          - {gen: Visual Studio 17 2022, arch: Win32, shared: OFF}
+          - {gen: Visual Studio 17 2022, arch: x64, shared: ON}
+          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF}
+    steps:
+    - name: checkout
+      uses: actions/checkout@v2
+    - name: Configure
+      run: |
+        cmake -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -B build
+    - name: Build Debug
+      run: cmake --build build --config Debug --verbose
+    - name: Build Release
+      run: cmake --build build --config Release --verbose
+    - name: Run Release tests
+      run: |
+        cd build
+        ctest -C Release  -LE explicitonly  --output-on-failure
+    - name: Run Debug tests
+      run: |
+        cd build
+        ctest -C Debug  -LE explicitonly  --output-on-failure
+    - name: Install
+      run: |
+        cmake --install build --config Release
+    - name: Test Installation
+      run: |
+        cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -B build_install_test tests/installation_tests/find
+        cmake --build build_install_test --config Release

.github/workflows/vs17-clang-ci.yml

@@ -0,0 +1,41 @@
+name: VS17-CLANG-CI
+
+on: [push, pull_request]
+
+jobs:
+  ci:
+    if: >-
+      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
+      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
+    name: windows-vs17
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - {gen: Visual Studio 17 2022, arch: x64}
+    steps:
+    - name: checkout
+      uses: actions/checkout@v2
+    - name: Configure
+      run: |
+        cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -T ClangCL -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -B build
+    - name: Build Debug
+      run: cmake --build build --config Debug --verbose
+    - name: Build Release
+      run: cmake --build build --config Release --verbose
+    - name: Run Release tests
+      run: |
+        cd build
+        ctest -C Release  -LE explicitonly  --output-on-failure
+    - name: Run Debug tests
+      run: |
+        cd build
+        ctest -C Debug  -LE explicitonly  --output-on-failure
+    - name: Install
+      run: |
+        cmake --install build --config Release
+    - name: Test Installation
+      run: |
+        cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -B build_install_test tests/installation_tests/find
+        cmake --build build_install_test --config Release

.github/workflows/vs17-noexcept-ci.yml

@@ -0,0 +1,30 @@
+name: VS17-NoExcept-CI
+
+on: [push, pull_request]
+
+jobs:
+  ci:
+    name: windows-vs17
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/cache@v2
+      with:
+        path: dependencies/.cache
+        key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
+    - name: 'Run CMake with VS17'
+      uses: lukka/run-cmake@v3
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        buildDirectory: "${{ github.workspace }}/../../_temp/windows"
+        cmakeBuildType: Release
+        buildWithCMake: true
+        cmakeGenerator: VS16Win64
+        cmakeAppendedArgs: -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_DEVELOPER_MODE=ON  -DSIMDJSON_EXCEPTIONS=OFF
+        buildWithCMakeArgs: --config Release
+
+    - name: 'Run CTest'
+      run: ctest -C Release  -LE explicitonly  --output-on-failure
+      working-directory: "${{ github.workspace }}/../../_temp/windows"
+

.gitignore

@@ -96,3 +96,11 @@ objs
 
 # Generated docs
 /doc/api
+*.orig
+
+# VSCode workspace files
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

.gitmodules

@@ -1,36 +0,0 @@
-[submodule "scalarvssimd/rapidjson"]
-	path = dependencies/rapidjson
-	url = https://github.com/Tencent/rapidjson.git
-[submodule "dependencies/sajson"]
-	path = dependencies/sajson
-	url = https://github.com/chadaustin/sajson.git
-[submodule "dependencies/json11"]
-	path = dependencies/json11
-	url = https://github.com/dropbox/json11.git
-[submodule "dependencies/fastjson"]
-	path = dependencies/fastjson
-	url = https://github.com/mikeando/fastjson.git
-[submodule "dependencies/gason"]
-	path = dependencies/gason
-	url = https://github.com/vivkin/gason.git
-[submodule "dependencies/ujson4c"]
-	path = dependencies/ujson4c
-	url = https://github.com/esnme/ujson4c.git
-[submodule "dependencies/jsmn"]
-	path = dependencies/jsmn
-	url = https://github.com/zserge/jsmn.git
-[submodule "dependencies/cJSON"]
-	path = dependencies/cJSON
-	url = https://github.com/DaveGamble/cJSON.git
-[submodule "dependencies/jsoncpp"]
-	path = dependencies/jsoncpp
-	url = https://github.com/open-source-parsers/jsoncpp.git
-[submodule "dependencies/json"]
-	path = dependencies/json
-	url = https://github.com/nlohmann/json.git
-[submodule "dependencies/benchmark"]
-	path = dependencies/benchmark
-	url = https://github.com/google/benchmark.git
-[submodule "dependencies/cxxopts"]
-	path = dependencies/cxxopts
-	url = https://github.com/jarro2783/cxxopts

.travis.yml

@@ -1,30 +1,190 @@
 language: cpp
-sudo: false
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - gcc-7
-      - g++-7
-      - clang-format
-      - python
-branches:
-  only:
-    - master
 
-script: 
-   - export CXX=g++-7
-   - export CC=gcc-7
-   - make
-   - make test 
-   - make everything
-   - make amalgamate
-   - make clean
-   - make SANITIZEGOLD=1 test
-   - make clean
-   - ARCHFLAGS="-march=nehalem" make 
-   - ARCHFLAGS="-march=nehalem" make test
-   - ARCHFLAGS="-march=nehalem" make everything
-   - ./style/run-clang-format.py -r include/ benchmark/ src/ tests/
+dist: bionic
 
+arch:
+  - ppc64le
+
+cache:
+  directories:
+    - $HOME/.dep_cache
+
+env:
+  global:
+    - simdjson_DEPENDENCY_CACHE_DIR=$HOME/.dep_cache
+
+matrix:
+  include:
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-8
+      env:
+        - COMPILER="CC=gcc-8 && CXX=g++-8"
+      compiler: gcc-8
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-9
+      env:
+        - COMPILER="CC=gcc-9 && CXX=g++-9"
+      compiler: gcc-9
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-10
+      env:
+        - COMPILER="CC=gcc-10 && CXX=g++-10"
+      compiler: gcc-10
+
+# The sanitizer runs fail systematically
+#    - os: linux
+#      addons:
+#        apt:
+#          sources:
+#            - ubuntu-toolchain-r-test
+#          packages:
+#            - g++-10
+#      env:
+#        - COMPILER="CC=gcc-10 && CXX=g++-10"
+#        - SANITIZE="on"
+#      compiler: gcc-10-sanitize
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-10
+      env:
+        - COMPILER="CC=gcc-10 && CXX=g++-10"
+        - STATIC="on"
+      compiler: gcc-10-static
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - llvm-toolchain-bionic-6.0
+          packages:
+            - clang-6.0
+      env:
+        - COMPILER="CC=clang-6.0 && CXX=clang++-6.0"
+      compiler: clang-6
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - llvm-toolchain-bionic-7
+          packages:
+            - clang-7
+      env:
+        - COMPILER="CC=clang-7 && CXX=clang++-7"
+      compiler: clang-7
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - llvm-toolchain-bionic-8
+          packages:
+            - clang-8
+      env:
+        - COMPILER="CC=clang-8 && CXX=clang++-8"
+      compiler: clang-8
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - llvm-toolchain-bionic-9
+          packages:
+            - clang-9
+      env:
+        - COMPILER="CC=clang-9 && CXX=clang++-9"
+      compiler: clang-9
+
+    - os: linux
+      addons:
+        apt:
+          packages:
+            - clang-10
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+      env:
+        - COMPILER="CC=clang-10 && CXX=clang++-10"
+      compiler: clang-10
+
+    - os: linux
+      addons:
+        apt:
+          packages:
+            - clang-10
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+      env:
+        - COMPILER="CC=clang-10 && CXX=clang++-10"
+        - STATIC="on"
+      compiler: clang-10-static
+
+# The clang sanitizer runs fail frequently at setup time
+#    - os: linux
+#      addons:
+#        apt:
+#          packages:
+#            - clang-10
+#          sources:
+#            - ubuntu-toolchain-r-test
+#            - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main'
+#              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+#      env:
+#        - COMPILER="CC=clang-10 && CXX=clang++-10"
+#        - SANITIZE="on"
+#      compiler: clang-10-sanitize
+
+before_install:
+  - eval "${COMPILER}"
+
+install:
+  - wget -q -O - "https://raw.githubusercontent.com/simdjson/debian-ppa/master/key.gpg" | sudo apt-key add -
+  - sudo apt-add-repository "deb https://raw.githubusercontent.com/simdjson/debian-ppa/master simdjson main"
+  - sudo apt-get -qq update
+  - sudo apt-get purge cmake cmake-data
+  - sudo apt-get -t simdjson -y install cmake
+  - export CMAKE_CXX_FLAGS="-maltivec -mcpu=power9 -mtune=power9"
+  - export CMAKE_C_FLAGS="${CMAKE_CXX_FLAGS}"
+  - export CMAKE_FLAGS="-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS} -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS} -DSIMDJSON_IMPLEMENTATION=ppc64;fallback";
+  - if [[ "${SANITIZE}" == "on" ]]; then
+      export CMAKE_FLAGS="${CMAKE_FLAGS} -DSIMDJSON_SANITIZE=ON";
+      export ASAN_OPTIONS="detect_leaks=0";
+    fi
+  - if [[ "${STATIC}" == "on" ]]; then
+      export CMAKE_FLAGS="${CMAKE_FLAGS} -DBUILD_SHARED_LIBS=OFF";
+    fi
+  - export CTEST_FLAGS="-j4 --output-on-failure -LE explicitonly"
+
+script:
+  - mkdir build
+  - cd build
+  - cmake $CMAKE_FLAGS ..
+  - cmake --build . -- -j2
+  - SIMDJSON_FORCE_IMPLEMENTATION=ppc64 ctest $CTEST_FLAGS -L per_implementation
+  - SIMDJSON_FORCE_IMPLEMENTATION=fallback ctest $CTEST_FLAGS -L per_implementation
+  - ctest $CTEST_FLAGS -LE "acceptance|per_implementation"

.vscode/extensions.json

@@ -0,0 +1,17 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		// Syntax
+		"ms-vscode.cpptools",
+		"ms-vscode.cmake-tools",
+		"ms-python.python",
+		"twxs.cmake"
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": [
+
+	]
+}

.vscode/settings.json

@@ -0,0 +1,91 @@
+{
+    "editor.rulers": [
+        {"column": 95 },
+        {"column": 120 }
+    ],
+    "files.trimTrailingWhitespace": true,
+    "files.associations": {
+        "array": "cpp",
+        "iterator": "cpp",
+        "chrono": "cpp",
+        "optional": "cpp",
+        "__locale": "cpp",
+        "__tuple": "cpp",
+        "__bit_reference": "cpp",
+        "__config": "cpp",
+        "__debug": "cpp",
+        "__errc": "cpp",
+        "__functional_base": "cpp",
+        "__hash_table": "cpp",
+        "__mutex_base": "cpp",
+        "__node_handle": "cpp",
+        "__nullptr": "cpp",
+        "__split_buffer": "cpp",
+        "__string": "cpp",
+        "__threading_support": "cpp",
+        "__tree": "cpp",
+        "algorithm": "cpp",
+        "atomic": "cpp",
+        "bit": "cpp",
+        "bitset": "cpp",
+        "cctype": "cpp",
+        "cinttypes": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "codecvt": "cpp",
+        "complex": "cpp",
+        "condition_variable": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "deque": "cpp",
+        "exception": "cpp",
+        "forward_list": "cpp",
+        "fstream": "cpp",
+        "functional": "cpp",
+        "initializer_list": "cpp",
+        "iomanip": "cpp",
+        "ios": "cpp",
+        "iosfwd": "cpp",
+        "iostream": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "list": "cpp",
+        "locale": "cpp",
+        "map": "cpp",
+        "memory": "cpp",
+        "mutex": "cpp",
+        "new": "cpp",
+        "numeric": "cpp",
+        "ostream": "cpp",
+        "random": "cpp",
+        "ratio": "cpp",
+        "regex": "cpp",
+        "set": "cpp",
+        "sstream": "cpp",
+        "stack": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "string": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "thread": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "typeinfo": "cpp",
+        "unordered_map": "cpp",
+        "unordered_set": "cpp",
+        "utility": "cpp",
+        "valarray": "cpp",
+        "vector": "cpp",
+        "*.ipp": "cpp",
+        "__functional_base_03": "cpp",
+        "filesystem": "cpp"
+    }
+}

CMakeLists.txt

@@ -1,60 +1,222 @@
-cmake_minimum_required(VERSION 3.9) # CMP0069 NEW
+cmake_minimum_required(VERSION 3.14)
 
-project(simdjson
-  DESCRIPTION "Parsing gigabytes of JSON per second"
-  LANGUAGES CXX C
+project(
+    simdjson
+    # The version number is modified by tools/release.py
+    VERSION 2.0.1
+    DESCRIPTION "Parsing gigabytes of JSON per second"
+    HOMEPAGE_URL "https://simdjson.org/"
+    LANGUAGES CXX C
 )
 
-set(PROJECT_VERSION_MAJOR 0)
-set(PROJECT_VERSION_MINOR 4)
-set(PROJECT_VERSION_PATCH 1)
-set(SIMDJSON_LIB_VERSION "0.4.1" CACHE STRING "simdjson library version")
-set(SIMDJSON_LIB_SOVERSION "2" CACHE STRING "simdjson library soversion")
-set(SIMDJSON_GITHUB_REPOSITORY https://github.com/simdjson/simdjson)
+set(SIMDJSON_GITHUB_REPOSITORY "https://github.com/simdjson/simdjson")
 
+string(
+    COMPARE EQUAL
+    "${CMAKE_SOURCE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}"
+    is_top_project
+)
+
+# ---- Options, variables ----
+
+# These version numbers are modified by tools/release.py
+set(SIMDJSON_LIB_VERSION "11.0.0" CACHE STRING "simdjson library version")
+set(SIMDJSON_LIB_SOVERSION "11" CACHE STRING "simdjson library soversion")
+
+option(SIMDJSON_ENABLE_THREADS "Link with thread support" ON)
+
+include(cmake/simdjson-props.cmake)
+include(cmake/implementation-flags.cmake)
+include(cmake/exception-flags.cmake)
+
+option(SIMDJSON_DISABLE_DEPRECATED_API "Disables deprecated APIs" OFF)
+if(SIMDJSON_DISABLE_DEPRECATED_API)
+  simdjson_add_props(
+      target_compile_definitions PUBLIC
+      SIMDJSON_DISABLE_DEPRECATED_API=1
+  )
+endif()
+
+option(SIMDJSON_DEVELOPMENT_CHECKS "Enable development-time aids, such as \
+checks for incorrect API usage. Enabled by default in DEBUG." OFF)
+if(SIMDJSON_DEVELOPMENT_CHECKS)
+  simdjson_add_props(
+      target_compile_definitions PUBLIC
+      SIMDJSON_DEVELOPMENT_CHECKS
+  )
+endif()
+
+if(is_top_project)
+  option(SIMDJSON_DEVELOPER_MODE "Enable targets for developing simdjson" OFF)
+  option(BUILD_SHARED_LIBS "Build simdjson as a shared library" OFF)
+endif()
+
+include(cmake/handle-deprecations.cmake)
+include(cmake/developer-options.cmake)
+
+# ---- simdjson library ----
+
+add_library(simdjson src/simdjson.cpp)
+add_library(simdjson::simdjson ALIAS simdjson)
+
+set_target_properties(
+    simdjson PROPERTIES
+    VERSION "${SIMDJSON_LIB_VERSION}"
+    SOVERSION "${SIMDJSON_LIB_SOVERSION}"
+    # FIXME: symbols should be hidden by default
+    WINDOWS_EXPORT_ALL_SYMBOLS YES
+)
+
+# FIXME: Use proper CMake integration for exports
+if(MSVC AND BUILD_SHARED_LIBS)
+  target_compile_definitions(
+      simdjson
+      PRIVATE SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY=1
+      INTERFACE SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY=1
+  )
+endif()
+
+simdjson_add_props(
+    target_include_directories
+    PUBLIC "$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
+    PRIVATE "$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src>"
+)
+
+simdjson_add_props(target_compile_features PUBLIC cxx_std_11)
+
+# workaround for GNU GCC poor AVX load/store code generation
+if(
+    CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
+    AND CMAKE_SYSTEM_PROCESSOR MATCHES "^(i.86|x86(_64)?)$"
+)
+  simdjson_add_props(
+      target_compile_options PRIVATE
+      -mno-avx256-split-unaligned-load -mno-avx256-split-unaligned-store
+  )
+endif()
+
+if(SIMDJSON_ENABLE_THREADS)
+  find_package(Threads REQUIRED)
+  simdjson_add_props(target_link_libraries PUBLIC Threads::Threads)
+  simdjson_add_props(target_compile_definitions PUBLIC SIMDJSON_THREADS_ENABLED=1)
+endif()
+
+simdjson_apply_props(simdjson)
+
+# ---- Install rules ----
+
+include(CMakePackageConfigHelpers)
 include(GNUInstallDirs)
-include(cmake/simdjson-flags.cmake)
-include(cmake/simdjson-user-cmakecache.cmake)
 
+install(
+    FILES singleheader/simdjson.h
+    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+    COMPONENT simdjson_Development
+)
 
+install(
+    TARGETS simdjson
+    EXPORT simdjsonTargets
+    RUNTIME COMPONENT simdjson_Runtime
+    LIBRARY COMPONENT simdjson_Runtime
+    NAMELINK_COMPONENT simdjson_Development
+    ARCHIVE COMPONENT simdjson_Development
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+)
 
-if(SIMDJSON_JUST_LIBRARY)
-  message( STATUS "Building just the library, omitting all tests, tools and benchmarks." )
+configure_file(cmake/simdjson-config.cmake.in simdjson-config.cmake @ONLY)
+
+write_basic_package_version_file(
+    simdjson-config-version.cmake
+    COMPATIBILITY SameMinorVersion
+)
+
+set(
+    SIMDJSON_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/simdjson"
+    CACHE STRING "CMake package config location relative to the install prefix"
+)
+mark_as_advanced(SIMDJSON_INSTALL_CMAKEDIR)
+
+install(
+    FILES
+    "${PROJECT_BINARY_DIR}/simdjson-config.cmake"
+    "${PROJECT_BINARY_DIR}/simdjson-config-version.cmake"
+    DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
+    COMPONENT simdjson_Development
+)
+
+install(
+    EXPORT simdjsonTargets
+    NAMESPACE simdjson::
+    DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
+    COMPONENT example_Development
+)
+
+#
+# CPack
+#
+if(is_top_project)
+  set(CPACK_PACKAGE_VENDOR "Daniel Lemire")
+  set(CPACK_PACKAGE_CONTACT "lemire@gmail.com")
+  set(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/LICENSE")
+  set(CPACK_RESOURCE_FILE_README "${PROJECT_SOURCE_DIR}/README.md")
+
+  set(CPACK_RPM_PACKAGE_LICENSE "${PROJECT_SOURCE_DIR}/LICENSE")
+
+  set(CPACK_SOURCE_GENERATOR "TGZ;ZIP")
+
+  include(CPack)
 endif()
 
-#
-# Set up test data
-#
-if(NOT(SIMDJSON_JUST_LIBRARY))
-  enable_testing()
-  add_subdirectory(jsonchecker)
-  add_subdirectory(jsonexamples)
-  add_library(test-data INTERFACE)
-  target_link_libraries(test-data INTERFACE jsonchecker-data jsonexamples-data)
+# ---- Developer mode extras ----
+
+if(NOT SIMDJSON_DEVELOPER_MODE)
+  message(STATUS "Building only the library. Advanced users may want to turn SIMDJSON_DEVELOPER_MODE to ON, e.g., via -D SIMDJSON_DEVELOPER_MODE=ON.")
+  return()
+elseif(NOT is_top_project)
+  message(AUTHOR_WARNING "Developer mode is intended for developers of simdjson")
 endif()
 
-#
-# Create the top level simdjson library (must be done at this level to use both src/ and include/
-# directories) and tools
-#
-add_subdirectory(include)
-add_subdirectory(src)
+simdjson_apply_props(simdjson-internal-flags)
+
+set(
+    SIMDJSON_USER_CMAKECACHE
+    "${CMAKE_BINARY_DIR}/.simdjson-user-CMakeCache.txt"
+)
+add_custom_target(
+    simdjson-user-cmakecache
+    COMMAND "${CMAKE_COMMAND}"
+    -D "BINARY_DIR=${CMAKE_BINARY_DIR}"
+    -D "USER_CMAKECACHE=${SIMDJSON_USER_CMAKECACHE}"
+    -P "${PROJECT_SOURCE_DIR}/cmake/simdjson-user-cmakecache.cmake"
+    VERBATIM
+)
+
+# Setup tests
+enable_testing()
+# So we can build just tests with "make all_tests"
+add_custom_target(all_tests)
+
 add_subdirectory(windows)
-if(NOT(SIMDJSON_JUST_LIBRARY))
-  add_subdirectory(dependencies) ## This needs to be before tools because of cxxopts
-  add_subdirectory(tools)  ## This needs to be before tests because of cxxopts
-  add_subdirectory(singleheader)
-endif()
+add_subdirectory(dependencies) ## This needs to be before tools because of cxxopts
+add_subdirectory(tools)  ## This needs to be before tests because of cxxopts
+
+# Data: jsonexamples is left with only the bare essential.
+# most of the data has been moved to https://github.com/simdjson/simdjson-data
+add_subdirectory(jsonexamples)
+
+
+add_subdirectory(singleheader)
+
+
 
 #
 # Compile tools / tests / benchmarks
 #
-if(NOT(SIMDJSON_JUST_LIBRARY))
-  add_subdirectory(tests)
-  add_subdirectory(examples)
-  add_subdirectory(benchmark)
-  add_subdirectory(fuzz)
-endif()
+add_subdirectory(tests)
+add_subdirectory(examples)
+add_subdirectory(benchmark)
+add_subdirectory(fuzz)
 
 #
 # Source files should be just ASCII
@@ -62,29 +224,59 @@ endif()
 find_program(FIND find)
 find_program(FILE file)
 find_program(GREP grep)
-if((FIND) AND (FILE) AND (GREP))
-    add_test(
-      NAME "just_ascii"
-      COMMAND sh -c "${FIND}  include src windows tools singleheader tests examples benchmark -path benchmark/checkperf-reference -prune -name '*.h'  -o -name '*.cpp' -type f  -exec ${FILE} '{}' \; |${GREP} -v ASCII || exit 0  && exit 1"
-      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    )
+if(FIND AND FILE AND GREP)
+  add_test(
+      NAME just_ascii
+      COMMAND sh -c "\
+${FIND} include src windows tools singleheader tests examples benchmark \
+-path benchmark/checkperf-reference -prune -name '*.h' -o -name '*.cpp' \
+-type f -exec ${FILE} '{}' \; | ${GREP} -qv ASCII || exit 0  && exit 1"
+      WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
+  )
 endif()
 
-
-#
-# CPack
-#
-set(CPACK_PACKAGE_VENDOR "Daniel Lemire")
-set(CPACK_PACKAGE_CONTACT "lemire@gmail.com")
-set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Parsing gigabytes of JSON per second")
-set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
-set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
-set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
-set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
-set(CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
-
-set(CPACK_RPM_PACKAGE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
-
-set(CPACK_SOURCE_GENERATOR "TGZ;ZIP")
-
-include(CPack)
+##
+## In systems like R, libraries must not use stderr or abort to be acceptable.
+## Thus we make it a hard rule that one is not allowed to call abort or stderr.
+## The sanitized builds are allowed to abort.
+##
+if(NOT SIMDJSON_SANITIZE)
+  find_program(GREP grep)
+  find_program(NM nm)
+  if((NOT GREP) OR (NOT NM))
+    message("grep and nm are unavailable on this system.")
+  else()
+    add_test(
+      NAME "avoid_abort"
+      # Under FreeBSD, the __cxa_guard_abort symbol may appear but it is fine.
+      # So we want to look for <space><possibly _>abort as a test.
+      COMMAND sh -c "${NM}  $<TARGET_FILE_NAME:simdjson> |  ${GREP} ' _*abort' || exit 0  && exit 1"
+      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    )
+    add_test(
+      NAME "avoid_cout"
+      COMMAND sh -c "${NM}  $<TARGET_FILE_NAME:simdjson> |  ${GREP} ' _*cout' || exit 0  && exit 1"
+      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    )
+    add_test(
+      NAME "avoid_cerr"
+      COMMAND sh -c "${NM}  $<TARGET_FILE_NAME:simdjson> |  ${GREP} ' _*cerr' || exit 0  && exit 1"
+      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    )
+    add_test(
+      NAME "avoid_printf"
+      COMMAND sh -c "${NM}  $<TARGET_FILE_NAME:simdjson> |  ${GREP} ' _*printf' || exit 0  && exit 1"
+      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    )
+    add_test(
+      NAME "avoid_stdout"
+      COMMAND sh -c "${NM}  $<TARGET_FILE_NAME:simdjson> |  ${GREP} stdout || exit 0 && exit 1"
+      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    )
+    add_test(
+      NAME "avoid_stderr"
+      COMMAND sh -c "${NM}  $<TARGET_FILE_NAME:simdjson> |  ${GREP} stderr || exit 0 && exit 1"
+      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    )
+  endif()
+endif()

CONTRIBUTING.md

@@ -41,6 +41,8 @@ We have few hard rules, but we have some:
 - Printing to standard output or standard error (`stderr`, `stdout`, `std::cerr`, `std::cout`) in the core library is forbidden. This follows from the [Writing R Extensions](https://cran.r-project.org/doc/manuals/R-exts.html) manual which states that "Compiled code should not write to stdout or stderr".
 - Calls to `abort()` are forbidden in the core library. This follows from the [Writing R Extensions](https://cran.r-project.org/doc/manuals/R-exts.html) manual which states that "Under no circumstances should your compiled code ever call abort or exit".
 - All source code files (.h, .cpp) must be ASCII.
+- All C macros introduced in public headers need to be prefixed with either `SIMDJSON_` or `simdjson_`.
+- We avoid trailing white space characters within lines. That is, your lines of code should not terminate with unnecessary spaces. Generally, please avoid making unnecessary changes to white-space characters when contributing code.
 
 Tools, tests and benchmarks are not held to these same strict rules.
 
@@ -67,10 +69,18 @@ Pull requests are always invited. However, we ask that you follow these guidelin
    3. Other types of changes must be clearly motivated. We openly discourage changes with no identifiable benefits.
 - Changes should be focused and minimal. You should change as few lines of code as possible. Please do not reformat or touch files needlessly.
 - New features must be accompanied of new tests, in general.
-- Your code should pass our continuous-integration tests. It is your responsability to ensure that your proposal pass the tests. We do not merge pull requests that would break our build.
+- Your code should pass our continuous-integration tests. It is your responsibility to ensure that your proposal pass the tests. We do not merge pull requests that would break our build.
+   - An exception to this would be changes to non-code files, such as documentation and assets, or trivial changes to code, such as comments, where it is encouraged to explicitly ask for skipping a CI run using the `[skip ci]` prefix in your Pull Request title **and** in the first line of the most recent commit in a push. Example for such a commit: `[skip ci] Fixed typo in power_of_ten's docs`
+   This benefits the project in such a way that the CI pipeline is not burdened by running jobs on changes that don't change any behavior in the code, which reduces wait times for other Pull Requests that do change behavior and require testing.
 
 If the benefits of your proposed code remain unclear, we may choose to discard your code: that is not an insult, we frequently discard our own code. We may also consider various alternatives and choose another path. Again, that is not an insult or a sign that you have wasted your time.
 
+Style
+-----
+
+Our formatting style is inspired by the LLVM style.
+The simdjson library is written using the snake case: when a variable or a function is a phrase,  each space is replaced by an underscore character, and the first letter of each word written in lowercase.  Compile-time constants are written entirely in uppercase with the same underscore convention.
+
 Code of Conduct
 ---------------
 

CONTRIBUTORS

@@ -35,5 +35,11 @@ Matjaž Ostroveršnik
 Nong Li
 Furkan Taşkale
 Brendan Knapp
-# if you have contributed to the project and your name does not 
+Danila Kutenin
+Pavel Pavlov
+Hao Chen
+Nicolas Boyer
+Kim Walisch and Jatin Bhateja (AVX-512 bitset decoder)
+Fangzheng Zhang and Weiqiang Wan (AVX-512 kernel)
+# if you have contributed to the project and your name does not
 # appear in this list, please let us know!

Dockerfile

@@ -1,88 +0,0 @@
-###
-#
-# Though simdjson requires only commonly available compilers and tools, it can
-# be convenient to build it and test it inside a docker container: it makes it
-# possible to test and benchmark simdjson under even relatively out-of-date
-# Linux servers. It should also work under macOS and Windows, though not
-# at native speeds, maybe.
-#
-# Assuming that you have a working docker server, this file
-# allows you to build, test and benchmark simdjson.
-#
-#  We build the library and associated files in the dockerbuild subdirectory.
-# It may be necessary to delete it before creating the image:
-#
-# rm -r -f dockerbuild
-#
-# The need to delete the directory has nothing to do with docker per se: it is
-# simply cleaner in CMake to start from a fresh directory. This is important: if you
-# reuse the same directory with different configurations, you may get broken builds.
-#
-#
-# Then you can build the image as follows:
-#
-# docker build -t simdjson --build-arg USER_ID=$(id -u)  --build-arg GROUP_ID=$(id -g) .
-#
-# Please note that the image does not contain a copy of the code. However, the image will contain the
-# the compiler and the build system. This means that if you change the source code, after you have built
-# the image, you won't need to rebuild the image. In fact, unless you want to try a different compiler, you
-# do not need to ever rebuild the image, even if you do a lot of work on the source code.
-#
-# We specify the users to avoid having files owned by a privileged user (root) in our directory. Some
-# people like to run their machine as the "root" user. We do not think it is cool.
-#
-# Then you need to build the project:
-#
-# docker run  -v $(pwd):/project:Z  simdjson
-#
-# Should you change a source file, you may need to call this command again. Because the output
-# files are persistent between calls to this command (they reside in the dockerbuild directory),
-# this command can be fast.
-#
-# Next you can test it as follows:
-#
-# docker run -it -v $(pwd):/project:Z   simdjson sh -c "cd dockerbuild && ctest . --output-on-failure -E checkperf"
-#
-# The run the complete tests requires you to have built all of simdjson.
-#
-# Building all of simdjson takes a long time. Instead, you can build just one target:
-#
-# docker run -it -v $(pwd):/project:Z  simdjson sh -c "[ -d dockerbuild ] || mkdir dockerbuild && cd dockerbuild && cmake ..  && cmake --build . --target parse"
-#
-# Note that it is safe to remove dockerbuild before call the previous command, as the repository gets rebuild. It is also possible, by changing the command, to use a different directory name.
-#
-# You can run performance tests:
-#
-# docker run -it --privileged -v $(pwd):/project:Z  simdjson sh -c "cd dockerbuild && for i in ../jsonexamples/*.json; do echo \$i; ./benchmark/parse \$i;  done"
-#
-# The "--privileged" is recommended so you can get performance counters under Linux.
-#
-# You can also grab a fresh copy of simdjson and rebuild it, to make comparisons:
-#
-# docker run -it -v $(pwd):/project:Z  simdjson sh -c "git clone https://github.com/simdjson/simdjson.git && cd simdjson && mkdir build && cd build && cmake .. && cmake --build . --target parse "
-#
-# Then you can run comparisons:
-#
-# docker run -it --privileged -v $(pwd):/project:Z  simdjson sh -c "for i in jsonexamples/*.json; do echo \$i; dockerbuild/benchmark/parse \$i| grep GB| head -n 1; simdjson/build/benchmark/parse \$i | grep GB |head -n 1;  done"
-#
-####
-FROM ubuntu:20.10
-################
-# We would prefer to use the conan io images but they do not support 64-bit ARM? The small gcc images appear to
-# be broken on ARM.
-# Furthermore, we would not expect users to frequently rebuild the container, so using ubuntu is probably fine.
-###############
-ARG USER_ID
-ARG GROUP_ID
-RUN apt-get update -qq
-RUN DEBIAN_FRONTEND="noninteractive" apt-get -y install tzdata
-RUN apt-get install -y cmake g++ git
-RUN mkdir project
-
-RUN addgroup --gid $GROUP_ID user; exit 0
-RUN adduser --disabled-password --gecos '' --uid $USER_ID --gid $GROUP_ID user; exit 0
-USER user
-RUN gcc --version
-WORKDIR /project
-
-CMD ["sh","-c","[ -d dockerbuild ] || mkdir dockerbuild && cd dockerbuild && cmake .. && cmake --build . "]

Doxyfile

@@ -38,7 +38,7 @@ PROJECT_NAME           = simdjson
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "0.4.1"
+PROJECT_NUMBER         = "2.0.1"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

HACKING.md

@@ -1,11 +1,50 @@
 Hacking simdjson
 ================
 
-Here is wisdom about how to build, test and run simdjson from within the repository. *Users* of
-simdjson should use the released simdjson.h and simdjson.cpp files.
+Here is wisdom about how to build, test and run simdjson from within the repository. This is mostly useful for people who plan to contribute simdjson, or maybe study the design.
 
 If you plan to contribute to simdjson, please read our [CONTRIBUTING](https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md) guide.
 
+
+Design notes
+------------------------------
+
+The parser works in two stages:
+
+- Stage 1. (Find marks) Identifies quickly structure elements, strings, and so forth. We validate UTF-8 encoding at that stage.
+- Stage 2. (Structure building) Involves constructing a "tree" of sort (materialized as a tape) to navigate through the data. Strings and numbers are parsed at this stage.
+
+
+The role of stage 1 is to identify pseudo-structural characters as quickly as possible. A character is pseudo-structural if and only if:
+
+1. Not enclosed in quotes, AND
+2. Is a non-whitespace character, AND
+3. Its preceding character is either:
+   (a) a structural character, OR
+   (b) whitespace OR
+   (c) the final quote in a string.
+
+This helps as we redefine some new characters as pseudo-structural such as the characters 1, G, n in the following:
+
+> { "foo" : 1.5, "bar" : 1.5 GEOFF_IS_A_DUMMY bla bla , "baz", null }
+
+Stage 1 also does unicode validation.
+
+Stage 2 handles all of the rest: number parsings, recognizing atoms like true, false, null, and so forth.
+
+Developer mode
+--------------
+
+Build system targets that are only useful for developers of the simdjson
+library are behind the `SIMDJSON_DEVELOPER_MODE` option. Enabling this option
+makes tests, examples, benchmarks and other developer targets available. Not
+enabling this option means that you are a consumer of simdjson and thus you
+only get the library targets and options.
+
+Developer mode is forced to be on when the `CI` environment variable is set to
+a value that CMake recognizes as "on", which is set to `true` in all of the CI
+workflows used by simdjson.
+
 Directory Structure and Source
 ------------------------------
 
@@ -13,15 +52,15 @@ simdjson's source structure, from the top level, looks like this:
 
 * **CMakeLists.txt:** The main build system.
 * **include:** User-facing declarations and inline definitions (most user-facing functions are inlined).
-  * simdjson.h: A "master include" that includes files from include/simdjson/. This is equivalent to
+  * simdjson.h: A "main include" that includes files from include/simdjson/. This is equivalent to
     the distributed simdjson.h.
   * simdjson/*.h: Declarations for public simdjson classes and functions.
-  * simdjson/inline/*.h: Definitions for public simdjson classes and functions.
+  * simdjson/*-inl.h: Definitions for public simdjson classes and functions.
 * **src:** The source files for non-inlined functionality (e.g. the architecture-specific parser
   implementations).
-  * simdjson.cpp: A "master source" that includes all implementation files from src/. This is
+  * simdjson.cpp: A "main source" that includes all implementation files from src/. This is
     equivalent to the distributed simdjson.cpp.
-  * arm64/|fallback/|haswell/|westmere/: Architecture-specific implementations. All functions are
+  * arm64/|fallback/|haswell/|ppc64/|westmere/: Architecture-specific implementations. All functions are
     Each architecture defines its own namespace, e.g. simdjson::haswell.
   * generic/: Generic implementations of the simdjson parser. These files may be included and
     compiled multiple times, from whichever architectures use them. They assume they are already
@@ -38,44 +77,52 @@ Other important files and directories:
 * **.drone.yml:** Definitions for Drone CI.
 * **.appveyor.yml:** Definitions for Appveyor CI (Windows).
 * **.circleci:** Definitions for Circle CI.
-* **amalgamate.sh:** Generates singleheader/simdjson.h and singleheader/simdjson.cpp for release.
+* **.github/workflows:** Definitions for GitHub Actions (CI).
+* **singleheader:** Contains generated `simdjson.h` and `simdjson.cpp` that we release. The files `singleheader/simdjson.h` and `singleheader/simdjson.cpp` should never be edited by hand.
+* **singleheader/amalgamate.py:** Generates `singleheader/simdjson.h` and `singleheader/simdjson.cpp` for release (python script).
 * **benchmark:** This is where we do benchmarking. Benchmarking is core to every change we make; the
   cardinal rule is don't regress performance without knowing exactly why, and what you're trading
   for it. Many of our benchmarks are microbenchmarks. We are effectively doing controlled scientific experiments for the purpose of understanding what affects our performance. So we simplify as much as possible. We try to avoid irrelevant factors such as page faults, interrupts, unnnecessary system calls. We recommend checking the performance as follows:
   ```bash
   mkdir build
   cd build
-  cmake ..
+  cmake -D SIMDJSON_DEVELOPER_MODE=ON ..
   cmake --build . --config Release
-  benchmark/parse ../jsonexamples/twitter.json
+  benchmark/dom/parse ../jsonexamples/twitter.json
   ```
   The last line becomes `./benchmark/Release/parse.exe ../jsonexample/twitter.json` under Windows. You may also use Google Benchmark:
   ```bash
   mkdir build
   cd build
-  cmake ..
+  cmake -D SIMDJSON_DEVELOPER_MODE=ON ..
   cmake --build . --target bench_parse_call --config Release
   ./benchmark/bench_parse_call
   ```
-  The last line becomes `./benchmark/Release/bench_parse_call.exe` under Windows. Under Windows, you can also build with the clang compiler by adding `-T ClangCL` to the call to `cmake ..`: `cmake .. - TClangCL`.
+  The last line becomes `./benchmark/Release/bench_parse_call.exe` under Windows. Under Windows, you can also build with the clang compiler by adding `-T ClangCL` to the call to `cmake ..`: `cmake -T ClangCL ..`.
 * **fuzz:** The source for fuzz testing. This lets us explore important edge and middle cases
 * **fuzz:** The source for fuzz testing. This lets us explore important edge and middle cases
   automatically, and is run in CI.
 * **jsonchecker:** A set of JSON files used to check different functionality of the parser.
   * **pass*.json:** Files that should pass validation.
   * **fail*.json:** Files that should fail validation.
+  * **jsonchecker/minefield/y_*.json:** Files that should pass validation.
+  * **jsonchecker/minefield/n_*.json:** Files that should fail validation.
 * **jsonexamples:** A wide spread of useful, real-world JSON files with different characteristics
   and sizes.
-* **singleheader:** Contains generated simdjson.h and simdjson.cpp that we release.
 * **test:** The tests are here. basictests.cpp and errortests.cpp are the primary ones.
-* **tools:** Source for executables that can be distributed with simdjson
+* **tools:** Source for executables that can be distributed with simdjson. Some examples:
+  * `json2json mydoc.json` parses the document, constructs a model and then dumps back the result to standard output.
+  * `json2json -d mydoc.json` parses the document, constructs a model and then dumps model (as a tape) to standard output. The tape format is described in the accompanying file `tape.md`.
+  * `minify mydoc.json` minifies the JSON document, outputting the result to standard output. Minifying means to remove the unneeded white space characters.
+  *`jsonpointer mydoc.json <jsonpath> <jsonpath> ... <jsonpath>` parses the document, constructs a model and then processes a series of [JSON Pointer paths](https://tools.ietf.org/html/rfc6901). The result is itself a JSON document.
+
+
 > **Don't modify the files in singleheader/ directly; these are automatically generated.**
->
-> While we distribute those files on release, we *maintain* the files under include/ and src/.
+
 
 While simdjson distributes just two files from the singleheader/ directory, we *maintain* the code in
-multiple files under include/ and src/. include/simdjson.h and src/simdjson.cpp are the "spine" for
-these, and you can include
+multiple files under include/ and src/. The files include/simdjson.h and src/simdjson.cpp are the "spine" for
+these, and you can include them as if they were the corresponding singleheader/ files.
 
 
 
@@ -112,7 +159,7 @@ processor.
 
 At this point, we are require to use one of two main strategies.
 
-1. On POSIX systems, the main compilers (LLVM clang, GNU gcc) allow us to use any intrinsic function after including the header, but they fail to inline the resulting instruction if the target processor does not support them. Because we compile for a generic processor, we would not be able to use most intrinsic functions. Thankfully, more recent versions of these compilers allow us to flag a region of code with a specific target, so that we can compile only some of the code with support for advanced instructions. Thus in our C++, one might notice macros like `TARGET_HASWELL`. It is then our responsability, at runtime, to only run the regions of code (that we call kernels) matching the properties of the runtime processor. The benefit of this approach is that the compiler not only let us use intrinsic functions, but it can also optimize the rest of the code in the kernel with advanced instructions we enabled.
+1. On POSIX systems, the main compilers (LLVM clang, GNU gcc) allow us to use any intrinsic function after including the header, but they fail to inline the resulting instruction if the target processor does not support them. Because we compile for a generic processor, we would not be able to use most intrinsic functions. Thankfully, more recent versions of these compilers allow us to flag a region of code with a specific target, so that we can compile only some of the code with support for advanced instructions. Thus in our C++, one might notice macros like `TARGET_HASWELL`. It is then our responsibility, at runtime, to only run the regions of code (that we call kernels) matching the properties of the runtime processor. The benefit of this approach is that the compiler not only let us use intrinsic functions, but it can also optimize the rest of the code in the kernel with advanced instructions we enabled.
 
 2. Under Visual Studio, the problem is somewhat simpler. Visual Studio will not only provide the intrinsic functions, but it will also allow us to use them. They will compile just fine. It is at runtime that they may cause a crash. So we do not need to mark regions of code for compilation toward advanced processors (e.g., with  `TARGET_HASWELL` macros). The downside of the Visual Studio approach is that the compiler is not allowed to use advanced instructions others than those we specify. In principle, this means that Visual Studio has weaker optimization opportunities.
 
@@ -124,26 +171,29 @@ We also handle the special case where a user is compiling using LLVM clang under
 
 
 
-Regenerating Single Headers From Master
+Regenerating Single-Header Files
 ---------------------------------------
 
-simdjson.h and simdjson.cpp are not always up to date in master. To ensure you have the latest copy,
-you can regenerate them by running this at the top level:
+The simdjson.h and simdjson.cpp files in the singleheader directory are not always up-to-date with the rest of the code; they are only ever
+systematically regenerated on releases. To ensure you have the latest code, you can regenerate them by running this at the top level:
 
 ```bash
 mkdir build
 cd build
-cmake ..
+cmake -D SIMDJSON_DEVELOPER_MODE=ON ..
+cmake --build . # needed, because currently dependencies do not work fully for the amalgamate target
 cmake --build . --target amalgamate
 ```
 
-The amalgamator is at `amalgamate.sh` at the top level. It generates singleheader/simdjson.h by
+You need to have python3 installed on your system.
+
+The amalgamator script `amalgamate.py` generates singleheader/simdjson.h by
 reading through include/simdjson.h, copy/pasting each header file into the amalgamated file at the
 point it gets included (but only once per header). singleheader/simdjson.cpp is generated from
 src/simdjson.cpp the same way, except files under generic/ may be included and copy/pasted multiple
 times.
 
-### Usage (CMake on 64-bit platforms like Linux, freeBSD or macOS)
+### Usage (CMake on 64-bit platforms like Linux, FreeBSD or macOS)
 
 Requirements: In addition to git, we require a recent version of CMake as well as bash.
 
@@ -156,7 +206,7 @@ brew install cmake
 apt-get update -qq
 apt-get install -y cmake
 ```
-3. On freeBSD, you might be able to install bash and CMake as follows:
+3. On FreeBSD, you might be able to install bash and CMake as follows:
 ```
 pkg update -f
 pkg install bash
@@ -171,31 +221,31 @@ Building: While in the project repository, do the following:
 ```
 mkdir build
 cd build
-cmake ..
+cmake -D SIMDJSON_DEVELOPER_MODE=ON ..
 cmake --build .
 ctest
 ```
 
-CMake will build a library. By default, it builds a shared library (e.g., libsimdjson.so on Linux).
+CMake will build a library. By default, it builds a static library (e.g., libsimdjson.a on Linux).
 
-You can build a static library:
+You can build a shared library:
 
 ```
-mkdir buildstatic
-cd buildstatic
-cmake -DSIMDJSON_BUILD_STATIC=ON ..
+mkdir buildshared
+cd buildshared
+cmake -D BUILD_SHARED_LIBS=ON -D SIMDJSON_DEVELOPER_MODE=ON ..
 cmake --build .
 ctest
 ```
 
-In some cases, you may want to specify your compiler, especially if the default compiler on your system is too old.  You need to tell cmake which compiler you wish to use by setting the CC and CXX variables. Under bash, you can do so with commands such as `export CC=gcc-7` and `export CXX=g++-7`. You can also do it as part of the `cmake` command: `cmake .. -DCMAKE_CXX_COMPILER=g++`.  You may proceed as follows:
+In some cases, you may want to specify your compiler, especially if the default compiler on your system is too old.  You need to tell cmake which compiler you wish to use by setting the CC and CXX variables. Under bash, you can do so with commands such as `export CC=gcc-7` and `export CXX=g++-7`. You can also do it as part of the `cmake` command: `cmake -DCMAKE_CXX_COMPILER=g++ ..`.  You may proceed as follows:
 
 ```
 brew install gcc@8
 mkdir build
 cd build
 export CXX=g++-8 CC=gcc-8
-cmake ..
+cmake -D SIMDJSON_DEVELOPER_MODE=ON ..
 cmake --build .
 ctest
 ```
@@ -206,15 +256,15 @@ Note that the name of directory (`build`) is arbitrary, you can name it as you w
 
 
 
-### Usage (CMake on 64-bit Windows using Visual Studio)
+### Usage (CMake on 64-bit Windows using Visual Studio 2019)
 
-We assume you have a common 64-bit Windows PC with at least Visual Studio 2017 and an x64 processor with AVX2 support (2013 Intel Haswell or later) or SSE 4.2 + CLMUL (2010 Westmere or later).
+We assume you have a common 64-bit Windows PC with at least Visual Studio 2019.
 
 - Grab the simdjson code from GitHub, e.g., by cloning it using [GitHub Desktop](https://desktop.github.com/).
 - Install [CMake](https://cmake.org/download/). When you install it, make sure to ask that `cmake` be made available from the command line. Please choose a recent version of cmake.
 - Create a subdirectory within simdjson, such as `build`.
 - Using a shell, go to this newly created directory. You can start a shell directly from GitHub Desktop (Repository > Open in Command Prompt).
-- Type `cmake -DCMAKE_GENERATOR_PLATFORM=x64 ..` in the shell while in the `build` repository. (Alternatively, if you want to build a DLL, you may use the command line `cmake -DCMAKE_GENERATOR_PLATFORM=x64 -DSIMDJSON_BUILD_STATIC=OFF ..`.)
+- Type `cmake  ..` in the shell while in the `build` repository.
 - This last command (`cmake ...`) created a Visual Studio solution file in the newly created directory (e.g., `simdjson.sln`). Open this file in Visual Studio. You should now be able to build the project and run the tests. For example, in the `Solution Explorer` window (available from the `View` menu), right-click `ALL_BUILD` and select `Build`. To test the code, still in the `Solution Explorer` window, select `RUN_TESTS` and select `Build`.
 
 
@@ -231,384 +281,15 @@ Furthermore, if you have installed LLVM clang on Windows, for example as a compo
 
 - `mkdir build`
 - `cd build`
-- `cmake ..  -T ClangCL`
+- `cmake -T ClangCL ..`
 - `cmake --build . -config Release`
 
 
-### Usage (Using `vcpkg` on 64-bit Windows, Linux and macOS)
-
-[vcpkg](https://github.com/Microsoft/vcpkg) users on Windows, Linux and macOS can download and install `simdjson` with one single command from their favorite shell.
-
-On 64-bit Linux and macOS:
-
-```
-$ ./vcpkg install simdjson
-```
-
-will build and install `simdjson` as a static library.
-
-On Windows (64-bit):
-
-```
-.\vcpkg.exe install simdjson:x64-windows
-```
-
-will build and install `simdjson` as a shared library.
-
-```
-.\vcpkg.exe install simdjson:x64-windows-static
-```
-
-will build and install `simdjson` as a static library.
-
-These commands will also print out instructions on how to use the library from MSBuild or CMake-based projects.
-
-If you find the version of `simdjson` shipped with `vcpkg` is out-of-date, feel free to report it to
-`vcpkg` community either by submitting an issue or by creating a PR.
-
-### Usage (Docker)
-
-One can run tests and benchmarks using docker. It especially makes sense under Linux. Privileged
-access may be needed to get performance counters.
-
-```
-git clone https://github.com/simdjson/simdjson.git
-cd simdjson
-docker build -t simdjson .
-docker run --privileged -t simdjson
-```
-
-## Architecture and Design Notes
-
-### Requirements
-
-- 64-bit platforms like Linux or macOS, as well as Windows through Visual Studio 2017 or later.
-- Any 64-bit processor:
-  - AVX2 (i.e., Intel processors starting with the Haswell microarchitecture released 2013 and AMD
-    processors starting with the Zen microarchitecture released 2017),
-  - SSE 4.2 and CLMUL (i.e., Intel processors going back to Westmere released in 2010 or AMD
-    processors starting with the Jaguar used in the PS4 and XBox One),
-  - 64-bit ARM processor (ARMv8-A NEON): this covers a wide range of mobile processors, including
-    all Apple processors currently available for sale, going as far back as the iPhone 5s (2013).
-  - Any 64-bit processor (simdjson has a fallback generic 64-bit implementation that is still super
-    fast).
-- A recent C++ compiler (e.g., GNU GCC or LLVM CLANG or Visual Studio 2017), we assume C++17. GNU
-  GCC 7 or better or LLVM's clang 6 or better.
-- Some benchmark scripts assume bash and other common utilities, but they are optional.
-
-### Scope
-
-We provide a fast parser, that fully validates an input according to various specifications.
-The parser builds a useful immutable (read-only) DOM (document-object model) which can be later accessed.
-
-To simplify the engineering, we make some assumptions.
-
-- We support UTF-8 (and thus ASCII), nothing else (no Latin, no UTF-16). We do not believe this is a
-  genuine limitation, because we do not think there is any serious application that needs to process
-  JSON data without an ASCII or UTF-8 encoding. If the UTF-8 contains a leading BOM, it should be
-  omitted: the user is responsible for detecting and skipping the BOM; UTF-8 BOMs are discouraged.
-- All strings in the JSON document may have up to 4294967295 bytes in UTF-8 (4GB). To enforce this
-  constraint, we refuse to parse a document that contains more than 4294967295 bytes (4GB). This
-  should accommodate most JSON documents.
-- As allowed by the specification, we allow repeated keys within an object (other parsers like
-  sajson do the same).
-- [The simdjson library is fast for JSON documents spanning a few bytes up to many megabytes](https://github.com/lemire/simdjson/issues/312).
-
-_We do not aim to provide a general-purpose JSON library._ A library like RapidJSON offers much more
-than just parsing, it helps you generate JSON and offers various other convenient functions. We
-merely parse the document. This may change in the future.
-
-### Features
-
-- The input string is unmodified. (Parsers like sajson and RapidJSON use the input string as a buffer.)
-- We parse integers and floating-point numbers as separate types which allows us to support large signed 64-bit integers in [-9223372036854775808,9223372036854775808), like a Java `long` or a C/C++ `long long` and large unsigned integers up to the value 18446744073709551615. Among the parsers that differentiate between integers and floating-point numbers, not all support 64-bit integers. (For example, sajson rejects JSON files with integers larger than or equal to 2147483648. RapidJSON will parse a file containing an overly long integer like 18446744073709551616 as a floating-point number.) When we cannot represent exactly an integer as a signed or unsigned 64-bit value, we reject the JSON document.
-- We support the full range of 64-bit floating-point numbers (binary64). The values range from ` std::numeric_limits<double>::lowest()`  to `std::numeric_limits<double>::max()`, so from -1.7976e308 all the way to 1.7975e308. Extreme values (less or equal to -1e308, greater or equal to 1e308) are rejected: we refuse to parse the input document.
-- We test for accurate float parsing with a perfect accuracy (ULP 0). Many parsers offer only approximate floating parsing. For example, RapidJSON also offers the option of accurate float parsing (`kParseFullPrecisionFlag`) but it comes at a significant performance penalty compared to the default settings. By default, RapidJSON tolerates an error of 3 ULP.
-- We do full UTF-8 validation as part of the parsing. (Parsers like fastjson, gason and dropbox json11 do not do UTF-8 validation. The sajson parser does incomplete UTF-8 validation, accepting code point
-sequences like 0xb1 0x87.)
-- We fully validate the numbers. (Parsers like gason and ultranjson will accept `[0e+]` as valid JSON.)
-- We validate string content for unescaped characters. (Parsers like fastjson and ultrajson accept unescaped line breaks and tabs in strings.)
-- We fully validate the white-space characters outside of the strings. Parsers like RapidJSON will accept JSON documents with null characters outside of strings.
-
-### Architecture
-
-The parser works in two stages:
-
-- Stage 1. (Find marks) Identifies quickly structure elements, strings, and so forth. We validate UTF-8 encoding at that stage.
-- Stage 2. (Structure building) Involves constructing a "tree" of sort (materialized as a tape) to navigate through the data. Strings and numbers are parsed at this stage.
-
-### Remarks on JSON parsing
-
-- The JSON spec defines what a JSON parser is:
-  > A JSON parser transforms a JSON text into another representation. A JSON parser MUST accept all texts that conform to the JSON grammar. A JSON parser MAY accept non-JSON forms or extensions. An implementation may set limits on the size of texts that it accepts. An implementation may set limits on the maximum depth of nesting. An implementation may set limits on the range and precision of numbers. An implementation may set limits on the length and character contents of strings.
-
-* JSON is not JavaScript:
-
-  > All JSON is Javascript but NOT all Javascript is JSON. So {property:1} is invalid because property does not have double quotes around it. {'property':1} is also invalid, because it's single quoted while the only thing that can placate the JSON specification is double quoting. JSON is even fussy enough that {"property":.1} is invalid too, because you should have of course written {"property":0.1}. Also, don't even think about having comments or semicolons, you guessed it: they're invalid. (credit:https://github.com/elzr/vim-json)
-
-* The structural characters are:
-
-      begin-array     =  [ left square bracket
-      begin-object    =  { left curly bracket
-      end-array       =  ] right square bracket
-      end-object      =  } right curly bracket
-      name-separator  = : colon
-      value-separator = , comma
-
-### Pseudo-structural elements
-
-A character is pseudo-structural if and only if:
-
-1. Not enclosed in quotes, AND
-2. Is a non-whitespace character, AND
-3. Its preceding character is either:
-   (a) a structural character, OR
-   (b) whitespace.
-
-This helps as we redefine some new characters as pseudo-structural such as the characters 1, G, n in the following:
-
-> { "foo" : 1.5, "bar" : 1.5 GEOFF_IS_A_DUMMY bla bla , "baz", null }
-
-
-
-### UTF-8 validation (lookup2)
-
-The simdjson library relies on the lookup2 algorithm for UTF-8 validation on x64 platforms.
-
-This algorithm validate the length of multibyte characters (that each multibyte character has the right number of continuation characters, and that all continuation characters are part of a multibyte  character).
-
-####  Algorithm
-
-This algorithm compares *expected* continuation characters with *actual* continuation bytes, and emits an error anytime there is a mismatch.
-
-For example, in the string "𝄞₿֏ab", which has a 4-, 3-, 2- and 1-byte
-characters, the file will look like this:
-
-| Character             | 𝄞  |    |    |    | ₿  |    |    | ֏  |    | a  | b  |
-|-----------------------|----|----|----|----|----|----|----|----|----|----|----|
-| Character Length      |  4 |    |    |    |  3 |    |    |  2 |    |  1 |  1 |
-| Byte                  | F0 | 9D | 84 | 9E | E2 | 82 | BF | D6 | 8F | 61 | 62 |
-| is_second_byte        |    |  X |    |    |    |  X |    |    |  X |    |    |
-| is_third_byte         |    |    |  X |    |    |    |  X |    |    |    |    |
-| is_fourth_byte        |    |    |    |  X |    |    |    |    |    |    |    |
-| expected_continuation |    |  X |  X |  X |    |  X |  X |    |  X |    |    |
-| is_continuation       |    |  X |  X |  X |    |  X |  X |    |  X |    |    |
-
-The errors here are basically (Second Byte OR Third Byte OR Fourth Byte == Continuation):
-
-- **Extra Continuations:** Any continuation that is not a second, third or fourth byte is not
-  part of a valid 2-, 3- or 4-byte character and is thus an error. It could be that it's just
-  floating around extra outside of any character, or that there is an illegal 5-byte character,
-  or maybe it's at the beginning of the file before any characters have started; but it's an
-  error in all these cases.
-- **Missing Continuations:** Any second, third or fourth byte that *isn't* a continuation is an error, because that means
-  we started a new character before we were finished with the current one.
-
-####  Getting the Previous Bytes
-
-Because we want to know if a byte is the *second* (or third, or fourth) byte of a multibyte
-character, we need to "shift the bytes" to find that out. This is what they mean:
-
-- `is_continuation`: if the current byte is a continuation.
-- `is_second_byte`: if 1 byte back is the start of a 2-, 3- or 4-byte character.
-- `is_third_byte`: if 2 bytes back is the start of a 3- or 4-byte character.
-- `is_fourth_byte`: if 3 bytes back is the start of a 4-byte character.
-
-We use shuffles to go n bytes back, selecting part of the current `input` and part of the
-`prev_input` (search for `.prev<1>`, `.prev<2>`, etc.). These are passed in by the caller
-function, because the 1-byte-back data is used by other checks as well.
-
-####   Getting the Continuation Mask
-
-Once we have the right bytes, we have to get the masks. To do this, we treat UTF-8 bytes as
-numbers, using signed `<` and `>` operations to check if they are continuations or leads.
-In fact, we treat the numbers as *signed*, partly because it helps us, and partly because
-Intel's SIMD presently only offers signed `<` and `>` operations (not unsigned ones).
-
-In UTF-8, bytes that start with the bits 110, 1110 and 11110 are 2-, 3- and 4-byte "leads,"
-respectively, meaning they expect to have 1, 2 and 3 "continuation bytes" after them.
-Continuation bytes start with 10, and ASCII (1-byte characters) starts with 0.
-
-When treated as signed numbers, they look like this:
-
-| Type         | High Bits  | Binary Range | Signed |
-|--------------|------------|--------------|--------|
-| ASCII        | `0`        | `01111111`   |   127  |
-|              |            | `00000000`   |     0  |
-| 4+-Byte Lead | `1111`     | `11111111`   |    -1  |
-|              |            | `11110000    |   -16  |
-| 3-Byte Lead  | `1110`     | `11101111`   |   -17  |
-|              |            | `11100000    |   -32  |
-| 2-Byte Lead  | `110`      | `11011111`   |   -33  |
-|              |            | `11000000    |   -64  |
-| Continuation | `10`       | `10111111`   |   -65  |
-|              |            | `10000000    |  -128  |
-
-This makes it pretty easy to get the continuation mask! It's just a single comparison:
-
-```
-is_continuation = input < -64`
-```
-
-We can do something similar for the others, but it takes two comparisons instead of one: "is
-the start of a 4-byte character" is `< -32` and `> -65`, for example. And 2+ bytes is `< 0` and
-`> -64`. Surely we can do better, they're right next to each other!
-
-####  Getting the is_xxx Masks: Shifting the Range
-
-Notice *why* continuations were a single comparison. The actual *range* would require two
-comparisons--`< -64` and `> -129`--but all characters are always greater than -128, so we get
-that for free. In fact, if we had *unsigned* comparisons, 2+, 3+ and 4+ comparisons would be
-just as easy: 4+ would be `> 239`, 3+ would be `> 223`, and 2+ would be `> 191`.
-
-Instead, we add 128 to each byte, shifting the range up to make comparison easy. This wraps
-ASCII down into the negative, and puts 4+-Byte Lead at the top:
-
-| Type                 | High Bits  | Binary Range | Signed |
-|----------------------|------------|--------------|-------|
-| 4+-Byte Lead (+ 127) | `0111`     | `01111111`   |   127 |
-|                      |            | `01110000    |   112 |
-|----------------------|------------|--------------|-------|
-| 3-Byte Lead (+ 127)  | `0110`     | `01101111`   |   111 |
-|                      |            | `01100000    |    96 |
-|----------------------|------------|--------------|-------|
-| 2-Byte Lead (+ 127)  | `010`      | `01011111`   |    95 |
-|                      |            | `01000000    |    64 |
-|----------------------|------------|--------------|-------|
-| Continuation (+ 127) | `00`       | `00111111`   |    63 |
-|                      |            | `00000000    |     0 |
-|----------------------|------------|--------------|-------|
-| ASCII (+ 127)        | `1`        | `11111111`   |    -1 |
-|                      |            | `10000000`   |  -128 |
-|----------------------|------------|--------------|-------|
-
-*Now* we can use signed `>` on all of them:
-
-```
-prev1 = input.prev<1>
-prev2 = input.prev<2>
-prev3 = input.prev<3>
-prev1_flipped = input.prev<1>(prev_input) ^ 0x80; // Same as `+ 128`
-prev2_flipped = input.prev<2>(prev_input) ^ 0x80; // Same as `+ 128`
-prev3_flipped = input.prev<3>(prev_input) ^ 0x80; // Same as `+ 128`
-is_second_byte = prev1_flipped > 63;2+-byte lead
-is_third_byte  = prev2_flipped > 95;3+-byte lead
-is_fourth_byte = prev3_flipped > 111; // 4+-byte lead
-```
-
-NOTE: we use `^ 0x80` instead of `+ 128` in the code, which accomplishes the same thing, and even takes the same number
-of cycles as `+`, but on many Intel architectures can be parallelized better (you can do 3
-`^`'s at a time on Haswell, but only 2 `+`'s).
-
-That doesn't look like it saved us any instructions, did it? Well, because we're adding the
-same number to all of them, we can save one of those `+ 128` operations by assembling
-`prev2_flipped` out of prev 1 and prev 3 instead of assembling it from input and adding 128
-to it. One more instruction saved!
-
-```
-prev1 = input.prev<1>
-prev3 = input.prev<3>
-prev1_flipped = prev1 ^ 0x80; // Same as `+ 128`
-prev3_flipped = prev3 ^ 0x80; // Same as `+ 128`
-prev2_flipped = prev1_flipped.concat<2>(prev3_flipped): // <shuffle: take the first 2 bytes from prev1 and the rest from prev3  
-```
-
-####  Bringing It All Together: Detecting the Errors
-
-At this point, we have `is_continuation`, `is_first_byte`, `is_second_byte` and `is_third_byte`.
-All we have left to do is check if they match!
-
-```
-return (is_second_byte | is_third_byte | is_fourth_byte) ^ is_continuation;
-```
-
-But wait--there's more. The above statement is only 3 operations, but they *cannot be done in
-parallel*. You have to do 2 `|`'s and then 1 `&`. Haswell, at least, has 3 ports that can do
-bitwise operations, and we're only using 1!
-
-####  Epilogue: Addition For Booleans
-
-There is one big case the above code doesn't explicitly talk about--what if is_second_byte
-and is_third_byte are BOTH true? That means there is a 3-byte and 2-byte character right next
-to each other (or any combination), and the continuation could be part of either of them!
-Our algorithm using `&` and `|` won't detect that the continuation byte is problematic.
-
-Never fear, though. If that situation occurs, we'll already have detected that the second
-leading byte was an error, because it was supposed to be a part of the preceding multibyte
-character, but it *wasn't a continuation*.
-
-We could stop here, but it turns out that we can fix it using `+` and `-` instead of `|` and
-`&`, which is both interesting and possibly useful (even though we're not using it here). It
-exploits the fact that in SIMD, a *true* value is -1, and a *false* value is 0. So those
-comparisons were giving us numbers!
-
-Given that, if you do `is_second_byte + is_third_byte + is_fourth_byte`, under normal
-circumstances you will either get 0 (0 + 0 + 0) or -1 (-1 + 0 + 0, etc.). Thus,
-`(is_second_byte + is_third_byte + is_fourth_byte) - is_continuation` will yield 0 only if
-*both* or *neither* are 0 (0-0 or -1 - -1). You'll get 1 or -1 if they are different. Because
-*any* nonzero value is treated as an error (not just -1), we're just fine here :)
-
-Further, if *more than one* multibyte character overlaps,
-`is_second_byte + is_third_byte + is_fourth_byte` will be -2 or -3! Subtracting `is_continuation`
-from *that* is guaranteed to give you a nonzero value (-1, -2 or -3). So it'll always be
-considered an error.
-
-One reason you might want to do this is parallelism. ^ and | are not associative, so
-(A | B | C) ^ D will always be three operations in a row: either you do A | B -> | C -> ^ D, or
-you do B | C -> | A -> ^ D. But addition and subtraction *are* associative: (A + B + C) - D can
-be written as `(A + B) + (C - D)`. This means you can do A + B and C - D at the same time, and
-then adds the result together. Same number of operations, but if the processor can run
-independent things in parallel (which most can), it runs faster.
-
-This doesn't help us on Intel, but might help us elsewhere: on Haswell, at least, | and ^ have
-a super nice advantage in that more of them can be run at the same time (they can run on 3
-ports, while + and - can run on 2)! This means that we can do A | B while we're still doing C,
-saving us the cycle we would have earned by using +. Even more, using an instruction with a
-wider array of ports can help *other* code run ahead, too, since these instructions can "get
-out of the way," running on a port other instructions can't.
-
-####  Epilogue II: One More Trick
-
-There's one more relevant trick up our sleeve, it turns out: it turns out on Intel we can "pay
-for" the (prev<1> + 128) instruction, because it can be used to save an instruction in
-check_special_cases()--but we'll talk about that there :)
-
-
-
-
-## About the Project
-
-### Bindings and Ports of simdjson
-
-We distinguish between "bindings" (which just wrap the C++ code) and a port to another programming language (which reimplements everything).
-
-
-- [ZippyJSON](https://github.com/michaeleisel/zippyjson): Swift bindings for the simdjson project.
-- [pysimdjson](https://github.com/TkTech/pysimdjson): Python bindings for the simdjson project.
-- [simdjson-rs](https://github.com/Licenser/simdjson-rs): Rust port.
-- [simdjson-rust](https://github.com/SunDoge/simdjson-rust): Rust wrapper (bindings).
-- [SimdJsonSharp](https://github.com/EgorBo/SimdJsonSharp): C# version for .NET Core (bindings and full port).
-- [simdjson_nodejs](https://github.com/luizperes/simdjson_nodejs): Node.js bindings for the simdjson project.
-- [simdjson_php](https://github.com/crazyxman/simdjson_php): PHP bindings for the simdjson project.
-- [simdjson_ruby](https://github.com/saka1/simdjson_ruby): Ruby bindings for the simdjson project.
-- [simdjson-go](https://github.com/minio/simdjson-go): Go port using Golang assembly.
-- [rcppsimdjson](https://github.com/eddelbuettel/rcppsimdjson): R bindings.
-
-### Tools
-
-- `json2json mydoc.json` parses the document, constructs a model and then dumps back the result to standard output.
-- `json2json -d mydoc.json` parses the document, constructs a model and then dumps model (as a tape) to standard output. The tape format is described in the accompanying file `tape.md`.
-- `minify mydoc.json` minifies the JSON document, outputting the result to standard output. Minifying means to remove the unneeded white space characters.
-- `jsonpointer mydoc.json <jsonpath> <jsonpath> ... <jsonpath>` parses the document, constructs a model and then processes a series of [JSON Pointer paths](https://tools.ietf.org/html/rfc6901). The result is itself a JSON document.
-
-
 ### Various References
 
-- [Google double-conv](https://github.com/google/double-conversion/)
 - [How to implement atoi using SIMD?](https://stackoverflow.com/questions/35127060/how-to-implement-atoi-using-simd)
 - [Parsing JSON is a Minefield 💣](http://seriot.ch/parsing_json.php)
 - https://tools.ietf.org/html/rfc7159
-- The Mison implementation in rust https://github.com/pikkr/pikkr
 - http://rapidjson.org/md_doc_sax.html
 - https://github.com/Geal/parser_benchmarks/tree/master/json
 - Gron: A command line tool that makes JSON greppable https://news.ycombinator.com/item?id=16727665
@@ -622,31 +303,3 @@ Inspiring links:
 - https://auth0.com/blog/beating-json-performance-with-protobuf/
 - https://gist.github.com/shijuvar/25ad7de9505232c87034b8359543404a
 - https://github.com/frankmcsherry/blog/blob/master/posts/2018-02-11.md
-
-Validating UTF-8 takes no more than 0.7 cycles per byte:
-
-- https://github.com/lemire/fastvalidate-utf-8 https://lemire.me/blog/2018/05/16/validating-utf-8-strings-using-as-little-as-0-7-cycles-per-byte/
-
-### Academic References
-
-- T.Mühlbauer, W.Rödiger, R.Seilbeck, A.Reiser, A.Kemper, and T.Neumann. Instant loading for main memory databases. PVLDB, 6(14):1702–1713, 2013. (SIMD-based CSV parsing)
-- Mytkowicz, Todd, Madanlal Musuvathi, and Wolfram Schulte. "Data-parallel finite-state machines." ACM SIGARCH Computer Architecture News. Vol. 42. No. 1. ACM, 2014.
-- Lu, Yifan, et al. "Tree structured data processing on GPUs." Cloud Computing, Data Science & Engineering-Confluence, 2017 7th International Conference on. IEEE, 2017.
-- Sidhu, Reetinder. "High throughput, tree automata based XML processing using FPGAs." Field-Programmable Technology (FPT), 2013 International Conference on. IEEE, 2013.
-- Dai, Zefu, Nick Ni, and Jianwen Zhu. "A 1 cycle-per-byte XML parsing accelerator." Proceedings of the 18th annual ACM/SIGDA international symposium on Field programmable gate arrays. ACM, 2010.
-- Lin, Dan, et al. "Parabix: Boosting the efficiency of text processing on commodity processors." High Performance Computer Architecture (HPCA), 2012 IEEE 18th International Symposium on. IEEE, 2012. http://parabix.costar.sfu.ca/export/1783/docs/HPCA2012/final_ieee/final.pdf
-- Deshmukh, V. M., and G. R. Bamnote. "An empirical evaluation of optimization parameters in XML parsing for performance enhancement." Computer, Communication and Control (IC4), 2015 International Conference on. IEEE, 2015.
-- Moussalli, Roger, et al. "Efficient XML Path Filtering Using GPUs." ADMS@ VLDB. 2011.
-- Jianliang, Ma, et al. "Parallel speculative dom-based XML parser." High Performance Computing and Communication & 2012 IEEE 9th International Conference on Embedded Software and Systems (HPCC-ICESS), 2012 IEEE 14th International Conference on. IEEE, 2012.
-- Li, Y., Katsipoulakis, N.R., Chandramouli, B., Goldstein, J. and Kossmann, D., 2017. Mison: a fast JSON parser for data analytics. Proceedings of the VLDB Endowment, 10(10), pp.1118-1129. http://www.vldb.org/pvldb/vol10/p1118-li.pdf
-- Cameron, Robert D., et al. "Parallel scanning with bitstream addition: An xml case study." European Conference on Parallel Processing. Springer, Berlin, Heidelberg, 2011.
-- Cameron, Robert D., Kenneth S. Herdy, and Dan Lin. "High performance XML parsing using parallel bit stream technology." Proceedings of the 2008 conference of the center for advanced studies on collaborative research: meeting of minds. ACM, 2008.
-- Shah, Bhavik, et al. "A data parallel algorithm for XML DOM parsing." International XML Database Symposium. Springer, Berlin, Heidelberg, 2009.
-- Cameron, Robert D., and Dan Lin. "Architectural support for SWAR text processing with parallel bit streams: the inductive doubling principle." ACM Sigplan Notices. Vol. 44. No. 3. ACM, 2009.
-- Amagasa, Toshiyuki, Mana Seino, and Hiroyuki Kitagawa. "Energy-Efficient XML Stream Processing through Element-Skipping Parsing." Database and Expert Systems Applications (DEXA), 2013 24th International Workshop on. IEEE, 2013.
-- Medforth, Nigel Woodland. "icXML: Accelerating Xerces-C 3.1. 1 using the Parabix Framework." (2013).
-- Zhang, Qiang Scott. Embedding Parallel Bit Stream Technology Into Expat. Diss. Simon Fraser University, 2010.
-- Cameron, Robert D., et al. "Fast Regular Expression Matching with Bit-parallel Data Streams."
-- Lin, Dan. Bits filter: a high-performance multiple string pattern matching algorithm for malware detection. Diss. School of Computing Science-Simon Fraser University, 2010.
-- Yang, Shiyang. Validation of XML Document Based on Parallel Bit Stream Technology. Diss. Applied Sciences: School of Computing Science, 2013.
-- N. Nakasato, "Implementation of a parallel tree method on a GPU", Journal of Computational Science, vol. 3, no. 3, pp. 132-141, 2012.

README.md

@@ -1,8 +1,9 @@
-[![Build Status](https://cloud.drone.io/api/badges/simdjson/simdjson/status.svg)](https://cloud.drone.io/simdjson/simdjson) 
-[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/simdjson.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&q=proj%3Asimdjson&can=2)
-[![Build status](https://ci.appveyor.com/api/projects/status/ae77wp5v3lebmu6n/branch/master?svg=true)](https://ci.appveyor.com/project/lemire/simdjson-jmmti/branch/master)
-[![CirrusCI](https://api.cirrus-ci.com/github/simdjson/simdjson.svg)](https://cirrus-ci.com/github/simdjson/simdjson)
-[![][license img]][license]  [![Doxygen Documentation](https://img.shields.io/badge/docs-doxygen-green.svg)](https://simdjson.org/api/0.3.1/index.html)
+
+![Ubuntu 18.04 CI](https://github.com/simdjson/simdjson/workflows/Ubuntu%2018.04%20CI%20(GCC%207)/badge.svg)
+[![Ubuntu 20.04 CI](https://github.com/simdjson/simdjson/workflows/Ubuntu%2020.04%20CI%20(GCC%209)/badge.svg)](https://simdjson.org/plots.html)
+![VS16-CI](https://github.com/simdjson/simdjson/workflows/VS16-CI/badge.svg)
+![MinGW64-CI](https://github.com/simdjson/simdjson/workflows/MinGW64-CI/badge.svg)
+[![][license img]][license]  [![Doxygen Documentation](https://img.shields.io/badge/docs-doxygen-green.svg)](https://simdjson.org/api/2.0.0/index.html)
 
 simdjson : Parsing gigabytes of JSON per second
 ===============================================
@@ -10,13 +11,15 @@ simdjson : Parsing gigabytes of JSON per second
 <img src="images/logo.png" width="10%" style="float: right">
 JSON is everywhere on the Internet. Servers spend a *lot* of time parsing it. We need a fresh
 approach. The simdjson library uses commonly available SIMD instructions and microparallel algorithms
-to parse JSON 2.5x faster than anything else out there.
+to parse JSON 4x  faster than RapidJSON and 25x faster than JSON for Modern C++.
 
-* **Fast:** Over 2.5x faster than other production-grade JSON parsers.
-* **Easy:** First-class, easy to use API.
+* **Fast:** Over 4x faster than commonly used production-grade JSON parsers.
+* **Record Breaking Features:** Minify JSON  at 6 GB/s, validate UTF-8  at 13 GB/s,  NDJSON at 3.5 GB/s.
+* **Easy:** First-class, easy to use and carefully documented APIs.
 * **Strict:** Full JSON and UTF-8 validation, lossless parsing. Performance with no compromises.
 * **Automatic:** Selects a CPU-tailored parser at runtime. No configuration needed.
 * **Reliable:** From memory allocation to error handling, simdjson's design avoids surprises.
+* **Peer Reviewed:** Our research appears in venues like VLDB Journal, Software: Practice and Experience.
 
 This library is part of the [Awesome Modern C++](https://awesomecpp.com) list.
 
@@ -36,23 +39,30 @@ Table of Contents
 Quick Start
 -----------
 
-          
 The simdjson library is easily consumable with a single .h and .cpp file.
 
-0. Prerequisites: `g++` (version 7 or better) or `clang++` (version 6 or better), and a 64-bit system with a command-line shell (e.g., Linux, macOS, freeBSD). We also support programming environnements like Visual Studio and Xcode, but different steps are needed.
-1. Pull [simdjson.h](singleheader/simdjson.h) and [simdjson.cpp](singleheader/simdjson.cpp) into a directory, along with the sample file [twitter.json](jsonexamples/twitter.json).
+0. Prerequisites: `g++` (version 7 or better) or `clang++` (version 6 or better), and a 64-bit
+   system with a command-line shell (e.g., Linux, macOS, freeBSD). We also support programming
+   environments like Visual Studio and Xcode, but different steps are needed.
+1. Pull [simdjson.h](singleheader/simdjson.h) and [simdjson.cpp](singleheader/simdjson.cpp) into a
+   directory, along with the sample file [twitter.json](jsonexamples/twitter.json).
+
    ```
    wget https://raw.githubusercontent.com/simdjson/simdjson/master/singleheader/simdjson.h https://raw.githubusercontent.com/simdjson/simdjson/master/singleheader/simdjson.cpp https://raw.githubusercontent.com/simdjson/simdjson/master/jsonexamples/twitter.json
    ```
 2. Create `quickstart.cpp`:
 
-   ```c++
-   #include "simdjson.h"
-   int main(void) {
-     simdjson::dom::parser parser;
-     simdjson::dom::element tweets = parser.load("twitter.json");
-     std::cout << tweets["search_metadata"]["count"] << " results." << std::endl;
-   }
+```c++
+#include <iostream>
+#include "simdjson.h"
+using namespace simdjson;
+int main(void) {
+    ondemand::parser parser;
+    padded_string json = padded_string::load("twitter.json");
+    ondemand::document tweets = parser.iterate(json);
+    std::cout << uint64_t(tweets["search_metadata"]["count"]) << " results." << std::endl;
+}
+
    ```
 3. `c++ -o quickstart quickstart.cpp simdjson.cpp`
 4. `./quickstart`
@@ -69,64 +79,42 @@ Usage documentation is available:
 * [Performance](doc/performance.md) shows some more advanced scenarios and how to tune for them.
 * [Implementation Selection](doc/implementation-selection.md) describes runtime CPU detection and
   how you can work with it.
-* [API](https://simdjson.org/api/0.3.1/annotated.html) contains the automatically generated API documentation.
+* [API](https://simdjson.org/api/1.0.0/annotated.html) contains the automatically generated API documentation.
 
 Performance results
 -------------------
 
-The simdjson library uses three-quarters less instructions than state-of-the-art parser [RapidJSON](https://rapidjson.org) and
-fifty percent less than sajson. To our knowledge, simdjson is the first fully-validating JSON parser
+The simdjson library uses three-quarters less instructions than state-of-the-art parser [RapidJSON](https://rapidjson.org). To our knowledge, simdjson is the first fully-validating JSON parser
 to run at [gigabytes per second](https://en.wikipedia.org/wiki/Gigabyte) (GB/s) on commodity processors. It can parse millions of JSON documents per second on a single core.
 
 The following figure represents parsing speed in GB/s for parsing various files
-on an Intel Skylake processor (3.4 GHz) using the GNU GCC 9 compiler (with the -O3 flag).
-We compare against the best and fastest C++ libraries.
+on an Intel Skylake processor (3.4 GHz) using the GNU GCC 10 compiler (with the -O3 flag).
+We compare against the best and fastest C++ libraries on benchmarks that load and process the data.
 The simdjson library offers full unicode ([UTF-8](https://en.wikipedia.org/wiki/UTF-8)) validation and exact
-number parsing. The RapidJSON library is tested in two modes: fast and
-exact number parsing. The sajson library offers fast (but not exact)
-number parsing and partial unicode validation. In this data set, the file
-sizes range from 65KB (github_events) all the way to 3.3GB (gsoc-2018).
-Many files are mostly made of numbers: canada, mesh.pretty, mesh, random
-and numbers: in such instances, we see lower JSON parsing speeds due to the
-high cost of number parsing. The simdjson library uses exact number parsing which
-is particular taxing.
-
-<img src="doc/gbps.png" width="90%">
-
-On a Skylake processor, the parsing speeds (in GB/s) of various processors on the twitter.json file are as follows, using again GNU GCC 9.1 (with the -O3 flag). The popular JSON for Modern C++ library is particularly slow: it obviously trades parsing speed for other desirable features.
-
-| parser                                | GB/s |
-| ------------------------------------- | ---- |
-| simdjson                              | 2.5  |
-| RapidJSON UTF8-validation             | 0.29 |
-| RapidJSON UTF8-valid., exact numbers  | 0.28 |
-| RapidJSON insitu, UTF8-validation     | 0.41 |
-| RapidJSON insitu, UTF8-valid., exact  | 0.39 |
-| sajson (insitu, dynamic)              | 0.62 |
-| sajson (insitu, static)               | 0.88 |
-| dropbox                               | 0.13 |
-| fastjson                              | 0.27 |
-| gason                                 | 0.59 |
-| ultrajson                             | 0.34 |
-| jsmn                                  | 0.25 |
-| cJSON                                 | 0.31 |
-| JSON for Modern C++ (nlohmann/json)   | 0.11 |
+number parsing.
 
+<img src="doc/rome.png" width="60%">
 
 The simdjson library offers high speed whether it processes tiny files (e.g., 300 bytes)
 or larger files (e.g., 3MB). The following plot presents parsing
 speed for [synthetic files over various sizes generated with a script](https://github.com/simdjson/simdjson_experiments_vldb2019/blob/master/experiments/growing/gen.py) on a 3.4 GHz Skylake processor (GNU GCC 9, -O3).
-<img src="doc/growing.png" width="90%">
 
+<img src="doc/growing.png" width="60%">
 
 [All our experiments are reproducible](https://github.com/simdjson/simdjson_experiments_vldb2019).
 
+
+For NDJSON files, we can exceed 3 GB/s with [our  multithreaded parsing functions](https://github.com/simdjson/simdjson/blob/master/doc/parse_many.md).
+
+
+
 Real-world usage
 ----------------
 
 - [Microsoft FishStore](https://github.com/microsoft/FishStore)
 - [Yandex ClickHouse](https://github.com/yandex/ClickHouse)
 - [Clang Build Analyzer](https://github.com/aras-p/ClangBuildAnalyzer)
+- [Shopify HeapProfiler](https://github.com/Shopify/heap-profiler)
 
 If you are planning to use simdjson in a product, please work from one of our releases.
 
@@ -136,15 +124,22 @@ Bindings and Ports of simdjson
 We distinguish between "bindings" (which just wrap the C++ code) and a port to another programming language (which reimplements everything).
 
 - [ZippyJSON](https://github.com/michaeleisel/zippyjson): Swift bindings for the simdjson project.
+- [libpy_simdjson](https://github.com/gerrymanoim/libpy_simdjson/): high-speed Python bindings for simdjson using [libpy](https://github.com/quantopian/libpy).
 - [pysimdjson](https://github.com/TkTech/pysimdjson): Python bindings for the simdjson project.
+- [cysimdjson](https://github.com/TeskaLabs/cysimdjson): high-speed Python bindings for the simdjson project.
 - [simdjson-rs](https://github.com/simd-lite): Rust port.
 - [simdjson-rust](https://github.com/SunDoge/simdjson-rust): Rust wrapper (bindings).
 - [SimdJsonSharp](https://github.com/EgorBo/SimdJsonSharp): C# version for .NET Core (bindings and full port).
 - [simdjson_nodejs](https://github.com/luizperes/simdjson_nodejs): Node.js bindings for the simdjson project.
 - [simdjson_php](https://github.com/crazyxman/simdjson_php): PHP bindings for the simdjson project.
 - [simdjson_ruby](https://github.com/saka1/simdjson_ruby): Ruby bindings for the simdjson project.
+- [fast_jsonparser](https://github.com/anilmaurya/fast_jsonparser): Ruby bindings for the simdjson project.
 - [simdjson-go](https://github.com/minio/simdjson-go): Go port using Golang assembly.
 - [rcppsimdjson](https://github.com/eddelbuettel/rcppsimdjson): R bindings.
+- [simdjson_erlang](https://github.com/ChomperT/simdjson_erlang): erlang bindings.
+- [lua-simdjson](https://github.com/FourierTransformer/lua-simdjson): lua bindings.
+- [hermes-json](https://hackage.haskell.org/package/hermes-json): haskell bindings.
+
 
 About simdjson
 --------------
@@ -154,14 +149,18 @@ instructions, reducing branch misprediction, and reducing data dependency to tak
 CPU's multiple execution cores.
 
 Some people [enjoy reading our paper](https://arxiv.org/abs/1902.08318): A description of the design
-and implementation of simdjson is in our research article: Geoff Langdale, Daniel
-Lemire, [Parsing Gigabytes of JSON per Second](https://arxiv.org/abs/1902.08318), VLDB Journal 28 (6), 2019.
+and implementation of simdjson is in our research article:
+- Geoff Langdale, Daniel Lemire, [Parsing Gigabytes of JSON per Second](https://arxiv.org/abs/1902.08318), VLDB Journal 28 (6), 2019.
+
+We have an in-depth paper focused on the UTF-8 validation:
+
+- John Keiser, Daniel Lemire, [Validating UTF-8 In Less Than One Instruction Per Byte](https://arxiv.org/abs/2010.03090), Software: Practice & Experience 51 (5), 2021.
 
 We also have an informal [blog post providing some background and context](https://branchfree.org/2019/02/25/paper-parsing-gigabytes-of-json-per-second/).
 
 For the video inclined, <br />
 [![simdjson at QCon San Francisco 2019](http://img.youtube.com/vi/wlvKAT7SZIQ/0.jpg)](http://www.youtube.com/watch?v=wlvKAT7SZIQ)<br />
-(it was the best voted talk, we're kinda proud of it).
+(It was the best voted talk, we're kinda proud of it.)
 
 Funding
 -------
@@ -185,4 +184,8 @@ This code is made available under the [Apache License 2.0](https://www.apache.or
 
 Under Windows, we build some tools using the windows/dirent_portable.h file (which is outside our library code): it under the liberal (business-friendly) MIT license.
 
-For compilers that do not support [C++17](https://en.wikipedia.org/wiki/C%2B%2B17), we bundle the string-view library which is published under the Boost license (http://www.boost.org/LICENSE_1_0.txt). Like the Apache license, the Boost license is a permissive license allowing commercial redistribution.
+For compilers that do not support [C++17](https://en.wikipedia.org/wiki/C%2B%2B17), we bundle the string-view library which is published under the [Boost license](http://www.boost.org/LICENSE_1_0.txt). Like the Apache license, the Boost license is a permissive license allowing commercial redistribution.
+
+For efficient number serialization, we bundle Florian Loitsch's implementation of the Grisu2 algorithm for binary to decimal floating-point numbers. The implementation was slightly modified by JSON for Modern C++ library. Both Florian Loitsch's implementation and JSON for Modern C++ are provided under the MIT license.
+
+For runtime dispatching, we use some code from the PyTorch project licensed under 3-clause BSD.

RELEASES.md

@@ -1,3 +1,39 @@
+# 0.5
+
+## Highlights
+
+Performance
+* Faster and simpler UTF-8 validation with the lookup4 algorithm https://github.com/simdjson/simdjson/pull/993
+* We improved the performance of simdjson under Visual Studio by about 25%. Users will still get better performance with clang-cl (+30%) but the gap has been reduced. https://github.com/simdjson/simdjson/pull/1031
+
+Code usability
+* In `parse_many`, when parsing streams of JSON documetns, we give to the users runtime control as to whether threads are used (via the parser.threaded attribute). https://github.com/simdjson/simdjson/issues/925
+* Prefixed public macros to avoid name clashes with other libraries. https://github.com/simdjson/simdjson/issues/1035
+* Better documentation regarding package managers (brew, MSYS2, conan, apt, vcpkg, FreeBSD package manager, etc.).
+* Better documentation regarding  CMake usage.
+
+Standards
+* We improved standard compliance with respect to both the JSON RFC 8259 and JSON Pointer RFC 6901. We added the at_pointer method to nodes for standard-compliant JSON Pointer queries. The legacy `at(std::string_view)` method remains but is deprecated since it is not standard-compliant as per  RFC 6901.
+* We removed computed GOTOs without sacrificing performance thus improving the C++ standard compliance (since computed GOTOs are compiler-specific extensions).
+* Better support for C++20 https://github.com/simdjson/simdjson/pull/1050
+
+# 0.4
+
+## Highlights
+
+- Test coverage has been greatly improved and we have resolved many static-analysis warnings on different systems.
+- We added a fast (8GB/s) minifier that works directly on JSON strings.
+- We added fast (10GB/s) UTF-8 validator that works directly on strings (any strings, including non-JSON).
+- The array and object elements have a constant-time size() method.
+- Performance improvements to the API (type(), get<>()).
+- The parse_many function (ndjson) has been entirely reworked. It now uses a single secondary thread instead of several new threads.
+- We have introduced a faster UTF-8 validation algorithm (lookup3) for all kernels (ARM, x64 SSE, x64 AVX).
+- C++11 support for older compilers and systems.
+- FreeBSD support (and tests).
+- We support the clang front-end compiler (clangcl) under Visual Studio.
+- It is now possible to target ARM platforms under Visual Studio.
+- The simdjson library will never abort or print to standard output/error.
+
 # 0.3
 
 ## Highlights

benchmark/CMakeLists.txt

@@ -1,37 +1,31 @@
+add_subdirectory(dom)
+
+
 include_directories( . linux )
-link_libraries(simdjson simdjson-flags simdjson-windows-headers test-data)
+link_libraries(simdjson-windows-headers test-data)
+link_libraries(simdjson)
+
 add_executable(benchfeatures benchfeatures.cpp)
 add_executable(get_corpus_benchmark get_corpus_benchmark.cpp)
-add_executable(perfdiff perfdiff.cpp)
-add_executable(parse parse.cpp)
-add_executable(parse_stream parse_stream.cpp)
-add_executable(statisticalmodel statisticalmodel.cpp)
-
-add_executable(parse_noutf8validation parse.cpp)
-target_compile_definitions(parse_noutf8validation PRIVATE SIMDJSON_SKIPUTF8VALIDATION)
-add_executable(parse_nonumberparsing parse.cpp)
-target_compile_definitions(parse_nonumberparsing PRIVATE SIMDJSON_SKIPNUMBERPARSING)
-add_executable(parse_nostringparsing parse.cpp)
-target_compile_definitions(parse_nostringparsing PRIVATE SIMDJSON_SKIPSTRINGPARSING)
 
 if (TARGET benchmark::benchmark)
   link_libraries(benchmark::benchmark)
   add_executable(bench_parse_call bench_parse_call.cpp)
   add_executable(bench_dom_api bench_dom_api.cpp)
+  if(SIMDJSON_EXCEPTIONS)
+    add_executable(bench_ondemand bench_ondemand.cpp)
+    if(TARGET yyjson)
+      target_link_libraries(bench_ondemand PRIVATE yyjson)
+    endif()
+    if(TARGET rapidjson)
+      target_link_libraries(bench_ondemand PRIVATE rapidjson)
+    endif()
+    if(TARGET sajson)
+      target_link_libraries(bench_ondemand PRIVATE sajson)
+    endif()
+    if(TARGET nlohmann_json)
+      target_link_libraries(bench_ondemand PRIVATE nlohmann_json)
+    endif()
+  endif()
 endif()
 
-if (TARGET competition-all)
-  add_executable(distinctuseridcompetition distinctuseridcompetition.cpp)
-  target_link_libraries(distinctuseridcompetition competition-core)
-  add_executable(minifiercompetition minifiercompetition.cpp)
-  target_link_libraries(minifiercompetition competition-core)
-  add_executable(parseandstatcompetition parseandstatcompetition.cpp)
-  target_link_libraries(parseandstatcompetition competition-core)
-  add_executable(parsingcompetition parsingcompetition.cpp)
-  target_link_libraries(parsingcompetition competition-core)
-  add_executable(allparsingcompetition parsingcompetition.cpp)
-  target_link_libraries(allparsingcompetition competition-all)
-  target_compile_definitions(allparsingcompetition PRIVATE ALLPARSER)
-endif()
-
-include(checkperf.cmake)

benchmark/Dockerfile

@@ -1,19 +0,0 @@
-# From the ROOT, run:
-# docker build -t simdjsonbench -f benchmark/Dockerfile . && docker run --privileged -t simdjsonbench
-FROM gcc:8.3
-
-# # Build latest
-# ENV latest_release=v0.2.1
-# WORKDIR /usr/src/$latest_release/
-# RUN git clone --depth 1 https://github.com/lemire/simdjson/ -b $latest_release .
-# RUN make parse
-
-# # Build master
-# WORKDIR /usr/src/master/
-# RUN git clone --depth 1 https://github.com/lemire/simdjson/ .
-# RUN make parse
-
-# Build the current source
-COPY . /usr/src/current/
-WORKDIR /usr/src/current/
-RUN make checkperf

benchmark/amazon_cellphones/amazon_cellphones.h

@@ -0,0 +1,73 @@
+#pragma once
+
+#include "json_benchmark/file_runner.h"
+#include <map>
+#include <string>
+
+
+namespace amazon_cellphones {
+
+const bool UNTHREADED = false;
+const bool THREADED = true;
+
+using namespace json_benchmark;
+
+struct brand {
+    double cumulative_rating;
+    uint64_t reviews_count;
+    simdjson_really_inline bool operator==(const brand &other) const {
+        return cumulative_rating == other.cumulative_rating &&
+            reviews_count == other.reviews_count;
+    }
+    simdjson_really_inline bool operator!=(const brand &other) const { return !(*this == other); }
+};
+
+simdjson_unused static std::ostream &operator<<(std::ostream &o, const brand &b) {
+  o << "cumulative_rating: " << b.cumulative_rating << std::endl;
+  o << "reviews_count: " << b.reviews_count << std::endl;
+  return o;
+}
+
+template<typename StringType>
+simdjson_unused static std::ostream &operator<<(std::ostream &o, const std::pair<const StringType, brand> &p) {
+  o << "brand: " << p.first << std::endl;
+	o << p.second;
+  return o;
+}
+
+template<typename I>
+struct runner : public file_runner<I> {
+    std::map<typename I::StringType, brand> result{};
+
+    bool setup(benchmark::State &state) {
+        return this->load_json(state, AMAZON_CELLPHONES_NDJSON);
+    }
+
+    bool before_run(benchmark::State &state) {
+        if (!file_runner<I>::before_run(state)) { return false; }
+        result.clear();
+        return true;
+    }
+
+    bool run(benchmark::State &) {
+        return this->implementation.run(this->json, result);
+    }
+
+    template<typename R>
+    bool diff(benchmark::State &state, runner<R> &reference) {
+        return diff_results(state, result, reference.result, diff_flags::NONE);
+    }
+
+    size_t items_per_iteration() {
+        return result.size();
+    }
+};
+
+template<bool threaded>
+struct simdjson_dom;
+
+template<typename I> simdjson_really_inline static void amazon_cellphones(benchmark::State &state) {
+  run_json_benchmark<runner<I>, runner<simdjson_dom<UNTHREADED>>>(state);
+}
+
+}   // namespace amazon_cellphones

benchmark/amazon_cellphones/simdjson_dom.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "amazon_cellphones.h"
+
+namespace amazon_cellphones {
+
+using namespace simdjson;
+
+template<bool threaded>
+struct simdjson_dom {
+  using StringType = std::string;
+
+  dom::parser parser{};
+
+  bool run(simdjson::padded_string &json, std::map<StringType, brand> &result) {
+#ifdef SIMDJSON_THREADS_ENABLED
+    parser.threaded = threaded;
+#endif
+    auto stream = parser.parse_many(json);
+    auto i = stream.begin();
+    ++i;  // Skip first line
+    for (;i != stream.end(); ++i) {
+      auto doc = *i;
+      StringType copy(std::string_view(doc.at(1)));
+      auto x = result.find(copy);
+      if (x == result.end()) {  // If key not found, add new key
+        result.emplace(copy, amazon_cellphones::brand{
+          double(doc.at(5)) * uint64_t(doc.at(7)),
+          uint64_t(doc.at(7))
+        });
+      } else {  // Otherwise, update key data
+        x->second.cumulative_rating += double(doc.at(5)) * uint64_t(doc.at(7));
+        x->second.reviews_count += uint64_t(doc.at(7));
+      }
+    }
+
+    return true;
+  }
+
+};
+
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_dom<UNTHREADED>)->UseManualTime();
+#ifdef SIMDJSON_THREADS_ENABLED
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_dom<THREADED>)->UseManualTime();
+#endif
+
+} // namespace amazon_cellphones
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/amazon_cellphones/simdjson_ondemand.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "amazon_cellphones.h"
+
+namespace amazon_cellphones {
+
+using namespace simdjson;
+
+template<bool threaded>
+struct simdjson_ondemand {
+  using StringType = std::string;
+
+  ondemand::parser parser{};
+
+  bool run(simdjson::padded_string &json, std::map<StringType, brand> &result) {
+#ifdef SIMDJSON_THREADS_ENABLED
+    parser.threaded = threaded;
+#endif
+    ondemand::document_stream stream = parser.iterate_many(json);
+    ondemand::document_stream::iterator i = stream.begin();
+    ++i;  // Skip first line
+    for (;i != stream.end(); ++i) {
+      auto doc = *i;
+      size_t index{0};
+      StringType copy;
+      double rating;
+      uint64_t reviews;
+      for ( auto value : doc ) {
+        switch (index)
+        {
+        case 1:
+          copy = StringType(std::string_view(value));
+          break;
+        case 5:
+          rating = double(value);
+          break;
+        case 7:
+          reviews = uint64_t(value);
+          break;
+        default:
+          break;
+        }
+        index++;
+      }
+
+      auto x = result.find(copy);
+      if (x == result.end()) {  // If key not found, add new key
+        result.emplace(copy, amazon_cellphones::brand{
+          rating * reviews,
+          reviews
+        });
+      } else {  // Otherwise, update key data
+        x->second.cumulative_rating += rating * reviews;
+        x->second.reviews_count += reviews;
+      }
+    }
+
+    return true;
+  }
+
+};
+
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_ondemand<UNTHREADED>)->UseManualTime();
+#ifdef SIMDJSON_THREADS_ENABLED
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_ondemand<THREADED>)->UseManualTime();
+#endif
+
+} // namespace amazon_cellphones
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/bench_dom_api.cpp

@@ -1,4 +1,5 @@
 #include <benchmark/benchmark.h>
+#include <iostream>
 #include "simdjson.h"
 #include <sstream>
 
@@ -8,9 +9,189 @@ using namespace std;
 
 const padded_string EMPTY_ARRAY("[]", 2);
 
-const char *TWITTER_JSON = SIMDJSON_BENCHMARK_DATA_DIR "twitter.json";
-const char *NUMBERS_JSON = SIMDJSON_BENCHMARK_DATA_DIR "numbers.json";
+static const char *TWITTER_JSON = SIMDJSON_BENCHMARK_DATA_DIR "twitter.json";
+static const char *NUMBERS_JSON = SIMDJSON_BENCHMARK_DATA_DIR "numbers.json";
 
+static void recover_one_string(State& state) {
+  dom::parser parser;
+  const std::string_view data = "\"one string\"";
+  padded_string docdata{data};
+  // we do not want mem. alloc. in the loop.
+  auto error = parser.allocate(docdata.size());
+  if(error) {
+      cout << error << endl;
+      return;
+  }
+  dom::element doc;
+  if ((error = parser.parse(docdata).get(doc))) {
+    cerr << "could not parse string" << error << endl;
+    return;
+  }
+  for (simdjson_unused auto _ : state) {
+      std::string_view v;
+      error = doc.get(v);
+      if (error) {
+        cerr << "could not get string" << error << endl;
+        return;
+      }
+      benchmark::DoNotOptimize(v);
+  }
+}
+BENCHMARK(recover_one_string);
+
+
+static void serialize_twitter(State& state) {
+  dom::parser parser;
+  padded_string docdata;
+  auto error = padded_string::load(TWITTER_JSON).get(docdata);
+  if(error) {
+      cerr << "could not parse twitter.json" << error << endl;
+      return;
+  }
+  // we do not want mem. alloc. in the loop.
+  if((error = parser.allocate(docdata.size()))) {
+      cout << error << endl;
+      return;
+  }
+  dom::element doc;
+  if ((error = parser.parse(docdata).get(doc))) {
+    cerr << "could not parse twitter.json" << error << endl;
+    return;
+  }
+  size_t bytes = 0;
+  for (simdjson_unused auto _ : state) {
+    std::string serial = simdjson::minify(doc);
+    bytes += serial.size();
+    benchmark::DoNotOptimize(serial);
+  }
+  // we validate the result
+  {
+    auto serial = simdjson::minify(doc);
+    dom::element doc2; // we parse the minified output
+    if ((error = parser.parse(serial).get(doc2))) { throw std::runtime_error("serialization error"); }
+    auto serial2 = simdjson::minify(doc2); // we minify a second time
+    if(serial != serial2) { throw std::runtime_error("serialization mismatch"); }
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(serialize_twitter)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
+
+
+static void serialize_big_string_to_string(State& state) {
+  dom::parser parser;
+  std::vector<char> content;
+  content.push_back('\"');
+  for(size_t i = 0 ; i < 100000; i ++) {
+    content.push_back('0' + char(i%10)); // we add what looks like a long list of digits
+  }
+  content.push_back('\"');
+  dom::element doc;
+  simdjson::error_code error;
+  if ((error = parser.parse(content.data(), content.size()).get(doc))) {
+    cerr << "could not parse big string" << error << endl;
+    return;
+  }
+  size_t bytes = 0;
+  for (simdjson_unused auto _ : state) {
+    auto serial = simdjson::to_string(doc);
+    bytes += serial.size();
+    benchmark::DoNotOptimize(serial);
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(serialize_big_string_to_string)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
+
+
+static void serialize_twitter_to_string(State& state) {
+  dom::parser parser;
+  padded_string docdata;
+  auto error = padded_string::load(TWITTER_JSON).get(docdata);
+  if(error) {
+      cerr << "could not parse twitter.json" << error << endl;
+      return;
+  }
+  // we do not want mem. alloc. in the loop.
+  if((error = parser.allocate(docdata.size()))) {
+      cout << error << endl;
+      return;
+  }
+  dom::element doc;
+  if ((error = parser.parse(docdata).get(doc))) {
+    cerr << "could not parse twitter.json" << error << endl;
+    return;
+  }
+  size_t bytes = 0;
+  for (simdjson_unused auto _ : state) {
+    auto serial = simdjson::to_string(doc);
+    bytes += serial.size();
+    benchmark::DoNotOptimize(serial);
+  }
+  // we validate the result
+  {
+    auto serial = simdjson::to_string(doc);
+    dom::element doc2; // we parse the stringify output
+    if ((error = parser.parse(serial).get(doc2))) { throw std::runtime_error("serialization error"); }
+    auto serial2 = simdjson::to_string(doc2); // we stringify again
+    if(serial != serial2) { throw std::runtime_error("serialization mismatch"); }
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(serialize_twitter_to_string)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
+
+static void serialize_twitter_string_builder(State& state) {
+  dom::parser parser;
+  padded_string docdata;
+  auto error = padded_string::load(TWITTER_JSON).get(docdata);
+  if(error) {
+      cerr << "could not parse twitter.json" << error << endl;
+      return;
+  }
+  // we do not want mem. alloc. in the loop.
+  if((error = parser.allocate(docdata.size()))) {
+      cout << error << endl;
+      return;
+  }
+  dom::element doc;
+  if ((error = parser.parse(docdata).get(doc))) {
+    cerr << "could not parse twitter.json" << error << endl;
+    return;
+  }
+  size_t bytes = 0;
+  simdjson::internal::string_builder<> sb;// not part of our public API, for internal use
+  for (simdjson_unused auto _ : state) {
+    sb.clear();
+    sb.append(doc);
+    std::string_view serial = sb.str();
+    bytes += serial.size();
+    benchmark::DoNotOptimize(serial);
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(serialize_twitter_string_builder)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
 
 
 static void numbers_scan(State& state) {
@@ -22,7 +203,7 @@ static void numbers_scan(State& state) {
     cerr << "could not read " << NUMBERS_JSON << " as an array: " << error << endl;
     return;
   }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     for (auto e : arr) {
       double x;
@@ -31,7 +212,7 @@ static void numbers_scan(State& state) {
     }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_scan);
 
@@ -44,7 +225,7 @@ static void numbers_size_scan(State& state) {
     cerr << "could not read " << NUMBERS_JSON << " as an array: " << error << endl;
     return;
   }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     container.resize(arr.size());
     size_t pos = 0;
@@ -56,7 +237,7 @@ static void numbers_size_scan(State& state) {
     if(pos != container.size()) { cerr << "bad count" << endl; }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_size_scan);
 
@@ -70,7 +251,7 @@ static void numbers_type_scan(State& state) {
     cerr << "could not read " << NUMBERS_JSON << " as an array" << endl;
     return;
   }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     for (auto e : arr) {
       dom::element_type actual_type = e.type();
@@ -96,7 +277,7 @@ static void numbers_type_size_scan(State& state) {
     cerr << "could not read " << NUMBERS_JSON << " as an array: " << error << endl;
     return;
   }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     container.resize(arr.size());
     size_t pos = 0;
@@ -121,7 +302,7 @@ static void numbers_load_scan(State& state) {
   dom::parser parser;
   dom::array arr;
   simdjson::error_code error;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     // this may hit the disk, but probably just once
     if ((error = parser.load(NUMBERS_JSON).get(arr))) {
       cerr << "could not read " << NUMBERS_JSON << " as an array: " << error << endl;
@@ -135,7 +316,7 @@ static void numbers_load_scan(State& state) {
     }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_load_scan);
 
@@ -144,7 +325,7 @@ static void numbers_load_size_scan(State& state) {
   dom::parser parser;
   dom::array arr;
   simdjson::error_code error;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     // this may hit the disk, but probably just once
     if ((error = parser.load(NUMBERS_JSON).get(arr))) {
       cerr << "could not read " << NUMBERS_JSON << " as an array" << endl;
@@ -161,7 +342,7 @@ static void numbers_load_size_scan(State& state) {
     if(pos != container.size()) { cerr << "bad count" << endl; }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_load_size_scan);
 
@@ -173,14 +354,14 @@ static void numbers_exceptions_scan(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
   dom::array arr = parser.load(NUMBERS_JSON);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     for (double x : arr) {
       container.push_back(x);
     }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_exceptions_scan);
 
@@ -188,7 +369,7 @@ static void numbers_exceptions_size_scan(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
   dom::array arr = parser.load(NUMBERS_JSON);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     container.resize(arr.size());
     size_t pos = 0;
@@ -198,7 +379,7 @@ static void numbers_exceptions_size_scan(State& state) {
     if(pos != container.size()) { cerr << "bad count" << endl; }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_exceptions_size_scan);
 
@@ -208,7 +389,7 @@ static void numbers_type_exceptions_scan(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
   dom::array arr = parser.load(NUMBERS_JSON);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     for (auto e : arr) {
       dom::element_type actual_type = e.type();
@@ -227,7 +408,7 @@ static void numbers_type_exceptions_size_scan(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
   dom::array arr = parser.load(NUMBERS_JSON);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::vector<double> container;
     container.resize(arr.size());
     size_t pos = 0;
@@ -248,7 +429,7 @@ BENCHMARK(numbers_type_exceptions_size_scan);
 static void numbers_exceptions_load_scan(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     // this may hit the disk, but probably just once
     dom::array arr = parser.load(NUMBERS_JSON);
     std::vector<double> container;
@@ -257,14 +438,14 @@ static void numbers_exceptions_load_scan(State& state) {
     }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_exceptions_load_scan);
 
 static void numbers_exceptions_load_size_scan(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     // this may hit the disk, but probably just once
     dom::array arr = parser.load(NUMBERS_JSON);
     std::vector<double> container;
@@ -276,7 +457,7 @@ static void numbers_exceptions_load_size_scan(State& state) {
     if(pos != container.size()) { cerr << "bad count" << endl; }
     benchmark::DoNotOptimize(container.data());
     benchmark::ClobberMemory();
-  }  
+  }
 }
 BENCHMARK(numbers_exceptions_load_size_scan);
 
@@ -285,20 +466,21 @@ static void twitter_count(State& state) {
   // Prints the number of results in twitter.json
   dom::parser parser;
   dom::element doc = parser.load(TWITTER_JSON);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     uint64_t result_count = doc["search_metadata"]["count"];
     if (result_count != 100) { return; }
   }
 }
 BENCHMARK(twitter_count);
 
+#ifndef SIMDJSON_DISABLE_DEPRECATED_API
 SIMDJSON_PUSH_DISABLE_WARNINGS
 SIMDJSON_DISABLE_DEPRECATED_WARNING
 static void iterator_twitter_count(State& state) {
   // Prints the number of results in twitter.json
   padded_string json = padded_string::load(TWITTER_JSON);
   ParsedJson pj = build_parsed_json(json);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     ParsedJson::Iterator iter(pj);
     // uint64_t result_count = doc["search_metadata"]["count"];
     if (!iter.move_to_key("search_metadata")) { return; }
@@ -311,17 +493,18 @@ static void iterator_twitter_count(State& state) {
 }
 BENCHMARK(iterator_twitter_count);
 SIMDJSON_POP_DISABLE_WARNINGS
+#endif // SIMDJSON_DISABLE_DEPRECATED_API
 
 static void twitter_default_profile(State& state) {
   // Count unique users with a default profile.
   dom::parser parser;
   dom::element doc = parser.load(TWITTER_JSON);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     set<string_view> default_users;
     for (dom::object tweet : doc["statuses"]) {
       dom::object user = tweet["user"];
       if (user["default_profile"]) {
-        default_users.insert(user["screen_name"]);
+        default_users.emplace(user["screen_name"]);
       }
     }
     if (default_users.size() != 86) { return; }
@@ -334,14 +517,14 @@ static void twitter_image_sizes(State& state) {
   dom::parser parser;
   dom::element doc = parser.load(TWITTER_JSON);
   simdjson::error_code error;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     set<tuple<uint64_t, uint64_t>> image_sizes;
     for (dom::object tweet : doc["statuses"]) {
       dom::array media;
       if (not (error = tweet["entities"]["media"].get(media))) {
         for (dom::object image : media) {
-          for (auto size : image["sizes"].get<dom::object>()) {
-            image_sizes.insert({ size.value["w"], size.value["h"] });
+          for (auto size : image["sizes"].get_object()) {
+             image_sizes.emplace(size.value["w"], size.value["h"]);
           }
         }
       }
@@ -359,7 +542,7 @@ static void error_code_twitter_count(State& state) noexcept {
   simdjson::error_code error;
   dom::element doc;
   if ((error = parser.load(TWITTER_JSON).get(doc))) { return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     uint64_t value;
     if ((error = doc["search_metadata"]["count"].get(value))) { return; }
     if (value != 100) { return; }
@@ -373,7 +556,7 @@ static void error_code_twitter_default_profile(State& state) noexcept {
   simdjson::error_code error;
   dom::element doc;
   if ((error = parser.load(TWITTER_JSON).get(doc))) { std::cerr << error << std::endl; return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     set<string_view> default_users;
 
     dom::array tweets;
@@ -395,15 +578,18 @@ static void error_code_twitter_default_profile(State& state) noexcept {
 }
 BENCHMARK(error_code_twitter_default_profile);
 
+#ifndef SIMDJSON_DISABLE_DEPRECATED_API
+
 SIMDJSON_PUSH_DISABLE_WARNINGS
 SIMDJSON_DISABLE_DEPRECATED_WARNING
+
 static void iterator_twitter_default_profile(State& state) {
   // Count unique users with a default profile.
   padded_string json;
   auto error = padded_string::load(TWITTER_JSON).get(json);
   if (error) { std::cerr << error << std::endl; return; }
   ParsedJson pj = build_parsed_json(json);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     set<string_view> default_users;
     ParsedJson::Iterator iter(pj);
 
@@ -422,7 +608,7 @@ static void iterator_twitter_default_profile(State& state) {
 
             // default_users.insert(user["screen_name"]);
             if (!(iter.move_to_key("screen_name") && iter.is_string())) { return; }
-            default_users.insert(string_view(iter.get_string(), iter.get_string_length()));
+            default_users.emplace(iter.get_string(), iter.get_string_length());
           }
           if (!iter.up()) { return; } // back to user
         }
@@ -435,8 +621,10 @@ static void iterator_twitter_default_profile(State& state) {
     if (default_users.size() != 86) { return; }
   }
 }
+
 SIMDJSON_POP_DISABLE_WARNINGS
 BENCHMARK(iterator_twitter_default_profile);
+#endif // SIMDJSON_DISABLE_DEPRECATED_API
 
 static void error_code_twitter_image_sizes(State& state) noexcept {
   // Count unique image sizes
@@ -444,7 +632,7 @@ static void error_code_twitter_image_sizes(State& state) noexcept {
   simdjson::error_code error;
   dom::element doc;
   if ((error = parser.load(TWITTER_JSON).get(doc))) { std::cerr << error << std::endl; return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     set<tuple<uint64_t, uint64_t>> image_sizes;
     dom::array statuses;
     if ((error = doc["statuses"].get(statuses))) { return; }
@@ -458,7 +646,7 @@ static void error_code_twitter_image_sizes(State& state) noexcept {
             uint64_t width, height;
             if ((error = size.value["w"].get(width))) { return; }
             if ((error = size.value["h"].get(height))) { return; }
-            image_sizes.insert({ width, height });
+            image_sizes.emplace(width, height);
           }
         }
       }
@@ -468,6 +656,8 @@ static void error_code_twitter_image_sizes(State& state) noexcept {
 }
 BENCHMARK(error_code_twitter_image_sizes);
 
+#ifndef SIMDJSON_DISABLE_DEPRECATED_API
+
 SIMDJSON_PUSH_DISABLE_WARNINGS
 SIMDJSON_DISABLE_DEPRECATED_WARNING
 static void iterator_twitter_image_sizes(State& state) {
@@ -476,7 +666,7 @@ static void iterator_twitter_image_sizes(State& state) {
   auto error = padded_string::load(TWITTER_JSON).get(json);
   if (error) { std::cerr << error << std::endl; return; }
   ParsedJson pj = build_parsed_json(json);
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     set<tuple<uint64_t, uint64_t>> image_sizes;
     ParsedJson::Iterator iter(pj);
 
@@ -510,7 +700,7 @@ static void iterator_twitter_image_sizes(State& state) {
                     if (!(iter.move_to_key("h")) && !iter.is_integer()) { return; }
                     uint64_t height = iter.get_integer();
                     if (!iter.up()) { return; } // back to size
-                    image_sizes.insert({ width, height });
+                    image_sizes.emplace(width, height);
 
                   } while (iter.next()); // next size
                   if (!iter.up()) { return; } // back to sizes
@@ -522,7 +712,7 @@ static void iterator_twitter_image_sizes(State& state) {
             if (!iter.up()) { return; } // back to entities
           }
           if (!iter.up()) { return; } // back to status
-        } 
+        }
       } while (iter.next()); // next status
     }
 
@@ -531,6 +721,9 @@ static void iterator_twitter_image_sizes(State& state) {
 }
 BENCHMARK(iterator_twitter_image_sizes);
 
+#endif // SIMDJSON_DISABLE_DEPRECATED_API
+
+#ifndef SIMDJSON_DISABLE_DEPRECATED_API
 static void print_json(State& state) noexcept {
   // Prints the number of results in twitter.json
   dom::parser parser;
@@ -541,12 +734,13 @@ static void print_json(State& state) noexcept {
 
   int code = json_parse(json, parser);
   if (code) { cerr << error_message(code) << endl; return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     std::stringstream s;
     if (!parser.print_json(s)) { cerr << "print_json failed" << endl; return; }
   }
 }
 BENCHMARK(print_json);
+#endif // SIMDJSON_DISABLE_DEPRECATED_API
 SIMDJSON_POP_DISABLE_WARNINGS
 
-BENCHMARK_MAIN();
+BENCHMARK_MAIN();

benchmark/bench_ondemand.cpp

@@ -0,0 +1,92 @@
+#include "simdjson.h"
+
+SIMDJSON_PUSH_DISABLE_ALL_WARNINGS
+
+#ifdef SIMDJSON_COMPETITION_YYJSON
+#include "yyjson.h"
+#endif
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+#include "rapidjson/document.h"
+#include "rapidjson/reader.h"
+#include "rapidjson/stringbuffer.h"
+#include "rapidjson/writer.h"
+#endif
+
+#ifdef SIMDJSON_COMPETITION_SAJSON
+#include "sajson.h"
+#endif
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+#include <nlohmann/json.hpp>
+#endif
+
+// This has to be last, for reasons I don't yet understand
+#include <benchmark/benchmark.h>
+
+SIMDJSON_POP_DISABLE_WARNINGS
+
+#include "amazon_cellphones/simdjson_dom.h"
+#include "amazon_cellphones/simdjson_ondemand.h"
+
+#include "large_amazon_cellphones/simdjson_dom.h"
+#include "large_amazon_cellphones/simdjson_ondemand.h"
+
+#include "partial_tweets/simdjson_dom.h"
+#include "partial_tweets/simdjson_ondemand.h"
+#include "partial_tweets/yyjson.h"
+#include "partial_tweets/sajson.h"
+#include "partial_tweets/rapidjson.h"
+#include "partial_tweets/rapidjson_sax.h"
+#include "partial_tweets/nlohmann_json.h"
+#include "partial_tweets/nlohmann_json_sax.h"
+
+#include "large_random/simdjson_dom.h"
+#include "large_random/simdjson_ondemand.h"
+#include "large_random/simdjson_ondemand_unordered.h"
+#include "large_random/yyjson.h"
+#include "large_random/sajson.h"
+#include "large_random/rapidjson.h"
+#include "large_random/rapidjson_sax.h"
+#include "large_random/nlohmann_json.h"
+#include "large_random/nlohmann_json_sax.h"
+
+#include "kostya/simdjson_dom.h"
+#include "kostya/simdjson_ondemand.h"
+#include "kostya/yyjson.h"
+#include "kostya/sajson.h"
+#include "kostya/rapidjson.h"
+#include "kostya/rapidjson_sax.h"
+#include "kostya/nlohmann_json.h"
+#include "kostya/nlohmann_json_sax.h"
+
+#include "distinct_user_id/simdjson_dom.h"
+#include "distinct_user_id/simdjson_dom_json_pointer.h"
+#include "distinct_user_id/simdjson_ondemand.h"
+#include "distinct_user_id/simdjson_ondemand_json_pointer.h"
+#include "distinct_user_id/yyjson.h"
+#include "distinct_user_id/sajson.h"
+#include "distinct_user_id/rapidjson.h"
+#include "distinct_user_id/rapidjson_sax.h"
+#include "distinct_user_id/nlohmann_json.h"
+#include "distinct_user_id/nlohmann_json_sax.h"
+
+#include "find_tweet/simdjson_dom.h"
+#include "find_tweet/simdjson_ondemand.h"
+#include "find_tweet/yyjson.h"
+#include "find_tweet/sajson.h"
+#include "find_tweet/rapidjson.h"
+#include "find_tweet/rapidjson_sax.h"
+#include "find_tweet/nlohmann_json.h"
+#include "find_tweet/nlohmann_json_sax.h"
+
+#include "top_tweet/simdjson_dom.h"
+#include "top_tweet/simdjson_ondemand.h"
+#include "top_tweet/yyjson.h"
+#include "top_tweet/sajson.h"
+#include "top_tweet/rapidjson.h"
+#include "top_tweet/rapidjson_sax.h"
+#include "top_tweet/nlohmann_json.h"
+#include "top_tweet/nlohmann_json_sax.h"
+
+BENCHMARK_MAIN();

benchmark/bench_parse_call.cpp

@@ -1,4 +1,5 @@
 #include <benchmark/benchmark.h>
+#include <iostream>
 #include "simdjson.h"
 using namespace simdjson;
 using namespace benchmark;
@@ -10,6 +11,94 @@ const char *GSOC_JSON = SIMDJSON_BENCHMARK_DATA_DIR "gsoc-2018.json";
 
 
 
+
+static void fast_minify_twitter(State& state) {
+  dom::parser parser;
+  padded_string docdata;
+  auto error = padded_string::load(TWITTER_JSON).get(docdata);
+  if(error) {
+      cerr << "could not parse twitter.json" << error << endl;
+      return;
+  }
+  std::unique_ptr<char[]> buffer{new char[docdata.size()]};
+
+  size_t bytes = 0;
+  for (simdjson_unused auto _ : state) {
+    size_t new_length{}; // It will receive the minified length.
+    auto error = simdjson::minify(docdata.data(), docdata.size(), buffer.get(), new_length);
+    bytes += docdata.size();
+    benchmark::DoNotOptimize(error);
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(fast_minify_twitter)->Repetitions(10)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
+
+
+
+
+static void fast_minify_gsoc(State& state) {
+  dom::parser parser;
+  padded_string docdata;
+  auto error = padded_string::load(GSOC_JSON).get(docdata);
+  if(error) {
+      cerr << "could not parse gsoc-2018.json" << error << endl;
+      return;
+  }
+  std::unique_ptr<char[]> buffer{new char[docdata.size()]};
+
+  size_t bytes = 0;
+  for (simdjson_unused auto _ : state) {
+    size_t new_length{}; // It will receive the minified length.
+    auto error = simdjson::minify(docdata.data(), docdata.size(), buffer.get(), new_length);
+    bytes += docdata.size();
+    benchmark::DoNotOptimize(error);
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(fast_minify_gsoc)->Repetitions(10)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
+
+static void unicode_validate_twitter(State& state) {
+  dom::parser parser;
+  padded_string docdata;
+  auto error = padded_string::load(TWITTER_JSON).get(docdata);
+  if(error) {
+      cerr << "could not parse twitter.json" << error << endl;
+      return;
+  }
+  // we do not want mem. alloc. in the loop.
+  error = parser.allocate(docdata.size());
+  if(error) {
+      cout << error << endl;
+      return;
+  }
+  size_t bytes = 0;
+  for (simdjson_unused auto _ : state) {
+    bool is_ok = simdjson::validate_utf8(docdata.data(), docdata.size());
+    bytes += docdata.size();
+    benchmark::DoNotOptimize(is_ok);
+  }
+  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
+  state.counters["Gigabytes"] = benchmark::Counter(
+	        double(bytes), benchmark::Counter::kIsRate,
+	        benchmark::Counter::OneK::kIs1000); // For GiB : kIs1024
+  state.counters["docs"] = Counter(double(state.iterations()), benchmark::Counter::kIsRate);
+}
+BENCHMARK(unicode_validate_twitter)->Repetitions(10)->ComputeStatistics("max", [](const std::vector<double>& v) -> double {
+    return *(std::max_element(std::begin(v), std::end(v)));
+  })->DisplayAggregatesOnly(true);
+
 static void parse_twitter(State& state) {
   dom::parser parser;
   padded_string docdata;
@@ -25,10 +114,9 @@ static void parse_twitter(State& state) {
       return;
   }
   size_t bytes = 0;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     dom::element doc;
     bytes += docdata.size();
-    ;
     if ((error = parser.parse(docdata).get(doc))) {
       cerr << "could not parse twitter.json" << error << endl;
       return;
@@ -61,7 +149,7 @@ static void parse_gsoc(State& state) {
       return;
   }
   size_t bytes = 0;
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     bytes += docdata.size();
     dom::element doc;
     if ((error = parser.parse(docdata).get(doc))) {
@@ -82,22 +170,25 @@ BENCHMARK(parse_gsoc)->Repetitions(10)->ComputeStatistics("max", [](const std::v
 
 
 
+#ifndef SIMDJSON_DISABLE_DEPRECATED_API
 SIMDJSON_PUSH_DISABLE_WARNINGS
 SIMDJSON_DISABLE_DEPRECATED_WARNING
 static void json_parse(State& state) {
   ParsedJson pj;
   if (!pj.allocate_capacity(EMPTY_ARRAY.length())) { return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     auto error = json_parse(EMPTY_ARRAY, pj);
     if (error) { return; }
   }
 }
 SIMDJSON_POP_DISABLE_WARNINGS
 BENCHMARK(json_parse);
+#endif // SIMDJSON_DISABLE_DEPRECATED_API
+
 static void parser_parse_error_code(State& state) {
   dom::parser parser;
   if (parser.allocate(EMPTY_ARRAY.length())) { return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     auto error = parser.parse(EMPTY_ARRAY).error();
     if (error) { return; }
   }
@@ -109,9 +200,9 @@ BENCHMARK(parser_parse_error_code);
 static void parser_parse_exception(State& state) {
   dom::parser parser;
   if (parser.allocate(EMPTY_ARRAY.length())) { return; }
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     try {
-      UNUSED dom::element doc = parser.parse(EMPTY_ARRAY);
+      simdjson_unused dom::element doc = parser.parse(EMPTY_ARRAY);
     } catch(simdjson_error &j) {
       cout << j.what() << endl;
       return;
@@ -122,10 +213,11 @@ BENCHMARK(parser_parse_exception);
 
 #endif // SIMDJSON_EXCEPTIONS
 
+#ifndef SIMDJSON_DISABLE_DEPRECATED_API
 SIMDJSON_PUSH_DISABLE_WARNINGS
 SIMDJSON_DISABLE_DEPRECATED_WARNING
 static void build_parsed_json(State& state) {
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     dom::parser parser = simdjson::build_parsed_json(EMPTY_ARRAY);
     if (!parser.valid) { return; }
   }
@@ -133,8 +225,10 @@ static void build_parsed_json(State& state) {
 SIMDJSON_POP_DISABLE_WARNINGS
 
 BENCHMARK(build_parsed_json);
+#endif
+
 static void document_parse_error_code(State& state) {
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     dom::parser parser;
     auto error = parser.parse(EMPTY_ARRAY).error();
     if (error) { return; }
@@ -145,10 +239,10 @@ BENCHMARK(document_parse_error_code);
 #if SIMDJSON_EXCEPTIONS
 
 static void document_parse_exception(State& state) {
-  for (UNUSED auto _ : state) {
+  for (simdjson_unused auto _ : state) {
     try {
       dom::parser parser;
-      UNUSED dom::element doc = parser.parse(EMPTY_ARRAY);
+      simdjson_unused dom::element doc = parser.parse(EMPTY_ARRAY);
     } catch(simdjson_error &j) {
       cout << j.what() << endl;
       return;

benchmark/benchfeatures.cpp

@@ -63,8 +63,8 @@ void print_usage(ostream& out) {
   out << "-s STAGE   - Stop after the given stage." << endl;
   out << "             -s stage1 - Stop after find_structural_bits." << endl;
   out << "             -s all    - Run all stages." << endl;
-  out << "-a ARCH    - Use the parser with the designated architecture (HASWELL, WESTMERE" << endl;
-  out << "             or ARM64). By default, detects best supported architecture." << endl;
+  out << "-a ARCH    - Use the parser with the designated architecture (HASWELL, WESTMERE," << endl;
+  out << "             PPC64 or ARM64). By default, detects best supported architecture." << endl;
 }
 
 void exit_usage(string message) {
@@ -96,8 +96,14 @@ struct option_struct {
       case 'v':
         verbose = true;
         break;
-      case 'a':
-        simdjson::active_implementation = simdjson::available_implementations[optarg];
+      case 'a': {
+          auto impl = simdjson::get_available_implementations()[optarg];
+          if(impl && impl->supported_by_runtime_system()) {
+            simdjson::get_active_implementation() = impl;
+          } else {
+            std::cerr << "implementation " << optarg << " not found or not supported " << std::endl;
+          }
+        }
         break;
       case 's':
         if (!strcmp(optarg, "stage1")) {
@@ -158,7 +164,7 @@ struct feature_benchmarker {
 
   }
 
-  really_inline void run_iterations(size_t iterations, bool stage1_only=false) {
+  simdjson_really_inline void run_iterations(size_t iterations, bool stage1_only=false) {
     struct7.run_iterations(iterations, stage1_only);
     struct7_miss.run_iterations(iterations, stage1_only);
     struct7_full.run_iterations(iterations, stage1_only);

benchmark/benchmark.h

@@ -12,9 +12,9 @@
 #define BEST_TIME(name, test, expected, pre, repeat, size, verbose)            \
   do {                                                                         \
     if (verbose)                                                               \
-      printf("%-40s\t: ", name);                                               \
+      std::printf("%-40s\t: ", name);                                          \
     else                                                                       \
-      printf("\"%-40s\"", name);                                               \
+      std::printf("\"%-40s\"", name);                                          \
     fflush(NULL);                                                              \
     event_collector collector;                                                 \
     event_aggregate aggregate{};                                               \
@@ -23,48 +23,50 @@
       std::atomic_thread_fence(std::memory_order_acquire);                     \
       collector.start();                                                       \
       if (test != expected) {                                                  \
-        fprintf(stderr, "not expected (%d , %d )", (int)test, (int)expected);  \
+        std::fprintf(stderr, "not expected (%d , %d )", (int)test,             \
+                     (int)expected);                                           \
         break;                                                                 \
       }                                                                        \
       std::atomic_thread_fence(std::memory_order_release);                     \
       event_count allocate_count = collector.end();                            \
       aggregate << allocate_count;                                             \
     }                                                                          \
-    uint64_t S = size;                                                         \
     if (collector.has_events()) {                                              \
-      printf("%7.3f", aggregate.best.cycles() / static_cast<double>(size));    \
+      std::printf("%7.3f",                                                     \
+                  aggregate.best.cycles() / static_cast<double>(size));        \
       if (verbose) {                                                           \
-        printf(" cycles/byte ");                                               \
+        std::printf(" cycles/byte ");                                          \
       }                                                                        \
-      printf("\t");                                                            \
-      printf("%7.3f",                                                          \
-             aggregate.best.instructions() / static_cast<double>(size));       \
+      std::printf("\t");                                                       \
+      std::printf("%7.3f",                                                     \
+                  aggregate.best.instructions() / static_cast<double>(size));  \
       if (verbose) {                                                           \
-        printf(" instructions/byte ");                                         \
+        std::printf(" instructions/byte ");                                    \
       }                                                                        \
-      printf("\t");                                                            \
+      std::printf("\t");                                                       \
     }                                                                          \
     double gb = static_cast<double>(size) / 1000000000.0;                      \
-    printf("%7.3f", gb / aggregate.best.elapsed_sec());                        \
+    std::printf("%7.3f", gb / aggregate.best.elapsed_sec());                   \
     if (verbose) {                                                             \
-      printf(" GB/s ");                                                        \
+      std::printf(" GB/s ");                                                   \
     }                                                                          \
-    printf("%7.3f", 1.0 / aggregate.best.elapsed_sec());                       \
+    std::printf("\t"); \
+    std::printf("%7.3f", 1.0 / aggregate.best.elapsed_sec());                  \
     if (verbose) {                                                             \
-      printf(" documents/s ");                                                 \
+      std::printf(" documents/s ");                                            \
     }                                                                          \
-    printf("\n");                                                              \
-    fflush(NULL);                                                              \
+    std::printf("\n");                                                         \
+    std::fflush(NULL);                                                         \
   } while (0)
 
 // like BEST_TIME, but no check
 #define BEST_TIME_NOCHECK(name, test, pre, repeat, size, verbose)              \
   do {                                                                         \
     if (verbose)                                                               \
-      printf("%-40s\t: ", name);                                               \
+      std::printf("%-40s\t: ", name);                                          \
     else                                                                       \
-      printf("\"%-40s\"", name);                                               \
-    fflush(NULL);                                                              \
+      std::printf("\"%-40s\"", name);                                          \
+    std::fflush(NULL);                                                         \
     event_collector collector;                                                 \
     event_aggregate aggregate{};                                               \
     for (decltype(repeat) i = 0; i < repeat; i++) {                            \
@@ -76,31 +78,32 @@
       event_count allocate_count = collector.end();                            \
       aggregate << allocate_count;                                             \
     }                                                                          \
-    uint64_t S = size;                                                         \
     if (collector.has_events()) {                                              \
-      printf("%7.3f", aggregate.best.cycles() / static_cast<double>(size));    \
+      std::printf("%7.3f",                                                     \
+                  aggregate.best.cycles() / static_cast<double>(size));        \
       if (verbose) {                                                           \
-        printf(" cycles/byte ");                                               \
+        std::printf(" cycles/byte ");                                          \
       }                                                                        \
-      printf("\t");                                                            \
-      printf("%7.3f",                                                          \
-             aggregate.best.instructions() / static_cast<double>(size));       \
+      std::printf("\t");                                                       \
+      std::printf("%7.3f",                                                     \
+                  aggregate.best.instructions() / static_cast<double>(size));  \
       if (verbose) {                                                           \
-        printf(" instructions/byte ");                                         \
+        std::printf(" instructions/byte ");                                    \
       }                                                                        \
-      printf("\t");                                                            \
+      std::printf("\t");                                                       \
     }                                                                          \
     double gb = static_cast<double>(size) / 1000000000.0;                      \
-    printf("%7.3f", gb / aggregate.best.elapsed_sec());                        \
+    std::printf("%7.3f", gb / aggregate.best.elapsed_sec());                   \
     if (verbose) {                                                             \
-      printf(" GB/s ");                                                        \
+      std::printf(" GB/s ");                                                   \
     }                                                                          \
-    printf("%7.3f", 1.0 / aggregate.best.elapsed_sec());                       \
+    std::printf("\t");                                                       \
+    std::printf("%7.3f", 1.0 / aggregate.best.elapsed_sec());                  \
     if (verbose) {                                                             \
-      printf(" documents/s ");                                                 \
+      std::printf(" documents/s ");                                            \
     }                                                                          \
-    printf("\n");                                                              \
-    fflush(NULL);                                                              \
+    std::printf("\n");                                                         \
+    std::fflush(NULL);                                                         \
   } while (0)
 
 #endif

benchmark/benchmarker.h

@@ -2,7 +2,7 @@
 #define __BENCHMARKER_H
 
 #include "event_counter.h"
-#include "simdjson.h" // For SIMDJSON_DISABLE_DEPRECATED_WARNINGS
+#include "simdjson.h"
 
 #include <cassert>
 #include <cctype>
@@ -225,8 +225,19 @@ struct progress_bar {
   }
 };
 
+/**
+ * The speed at which we can allocate memory is strictly system specific.
+ * It depends on the OS and the runtime library. It is subject to various
+ * system-specific knobs. It is not something that we can reasonably
+ * benchmark with crude timings.
+ * If someone wants to optimize how simdjson allocate memory, then it will
+ * almost surely require a distinct benchmarking tool. What is meant by
+ * "memory allocation" also requires a definition. Doing "new char[size]" can
+ * do many different things depending on the system.
+ */
+
 enum class BenchmarkStage {
-  ALL,
+  ALL, // This excludes allocation
   ALLOCATE,
   STAGE1,
   STAGE2
@@ -234,7 +245,7 @@ enum class BenchmarkStage {
 
 const char* benchmark_stage_name(BenchmarkStage stage) {
   switch (stage) {
-    case BenchmarkStage::ALL: return "All";
+    case BenchmarkStage::ALL: return "All (Without Allocation)";
     case BenchmarkStage::ALLOCATE: return "Allocate";
     case BenchmarkStage::STAGE1: return "Stage 1";
     case BenchmarkStage::STAGE2: return "Stage 2";
@@ -253,8 +264,8 @@ struct benchmarker {
   // Statistics about the JSON file independent of its speed (amount of utf-8, structurals, etc.).
   // Loaded on first parse.
   json_stats* stats;
-  // Speed and event summary for full parse (including allocation, stage 1 and stage 2)
-  event_aggregate all_stages{};
+  // Speed and event summary for full parse (stage 1 and stage 2, but *excluding* allocation)
+  event_aggregate all_stages_without_allocation{};
   // Speed and event summary for stage 1
   event_aggregate stage1{};
   // Speed and event summary for stage 2
@@ -285,31 +296,32 @@ struct benchmarker {
 
   const event_aggregate& operator[](BenchmarkStage stage) const {
     switch (stage) {
-      case BenchmarkStage::ALL: return this->all_stages;
+      case BenchmarkStage::ALL: return this->all_stages_without_allocation;
       case BenchmarkStage::STAGE1: return this->stage1;
       case BenchmarkStage::STAGE2: return this->stage2;
       case BenchmarkStage::ALLOCATE: return this->allocate_stage;
-      default: exit_error("Unknown stage"); return this->all_stages;
+      default: exit_error("Unknown stage"); return this->all_stages_without_allocation;
     }
   }
 
   int iterations() const {
-    return all_stages.iterations;
+    return all_stages_without_allocation.iterations;
   }
 
-  really_inline void run_iteration(bool stage1_only, bool hotbuffers=false) {
+  simdjson_really_inline void run_iteration(bool stage1_only, bool hotbuffers=false) {
     // Allocate dom::parser
     collector.start();
     dom::parser parser;
-    error_code error = parser.allocate(json.size());
+    // We always allocate at least 64KB. Smaller allocations may actually be slower under some systems.
+    error_code error = parser.allocate(json.size() < 65536 ? 65536 : json.size());
     if (error) {
-      exit_error(string("Unable to allocate_stage ") + to_string(json.size()) + " bytes for the JSON result: " + error_message(error));
+      exit_error(string("Unable to allocate_stage ") + to_string(json.size()) + " bytes for the JSON text: " + error_message(error));
     }
     event_count allocate_count = collector.end();
     allocate_stage << allocate_count;
     // Run it once to get hot buffers
     if(hotbuffers) {
-      auto result = parser.parse((const uint8_t *)json.data(), json.size());
+      auto result = parser.parse(reinterpret_cast<const uint8_t *>(json.data()), json.size());
       if (result.error()) {
         exit_error(string("Failed to parse ") + filename + string(":") + error_message(result.error()));
       }
@@ -319,7 +331,7 @@ struct benchmarker {
 
     // Stage 1 (find structurals)
     collector.start();
-    error = parser.implementation->stage1((const uint8_t *)json.data(), json.size(), false);
+    error = parser.implementation->stage1(reinterpret_cast<const uint8_t *>(json.data()), json.size(), stage1_mode::regular);
     event_count stage1_count = collector.end();
     stage1 << stage1_count;
     if (error) {
@@ -329,7 +341,7 @@ struct benchmarker {
     // Stage 2 (unified machine) and the rest
 
     if (stage1_only) {
-      all_stages << stage1_count;
+      all_stages_without_allocation << stage1_count;
     } else {
       event_count stage2_count;
       collector.start();
@@ -339,7 +351,7 @@ struct benchmarker {
       }
       stage2_count = collector.end();
       stage2 << stage2_count;
-      all_stages << allocate_count + stage1_count + stage2_count;
+      all_stages_without_allocation << stage1_count + stage2_count;
     }
     // Calculate stats the first time we parse
     if (stats == NULL) {
@@ -355,7 +367,7 @@ struct benchmarker {
 
   void run_loop(size_t iterations) {
     dom::parser parser;
-    auto firstresult = parser.parse((const uint8_t *)json.data(), json.size());
+    auto firstresult = parser.parse(reinterpret_cast<const uint8_t *>(json.data()), json.size());
     if (firstresult.error()) {
       exit_error(string("Failed to parse ") + filename + string(":") + error_message(firstresult.error()));
     }
@@ -363,7 +375,7 @@ struct benchmarker {
     collector.start();
     // some users want something closer to "number of documents per second"
     for(size_t i = 0; i < iterations; i++) {
-      auto result = parser.parse((const uint8_t *)json.data(), json.size());
+      auto result = parser.parse(reinterpret_cast<const uint8_t *>(json.data()), json.size());
       if (result.error()) {
         exit_error(string("Failed to parse ") + filename + string(":") + error_message(result.error()));
       }
@@ -372,7 +384,7 @@ struct benchmarker {
     loop << all_loop_count;
   }
 
-  really_inline void run_iterations(size_t iterations, bool stage1_only, bool hotbuffers=false) {
+  simdjson_really_inline void run_iterations(size_t iterations, bool stage1_only, bool hotbuffers=false) {
     for (size_t i = 0; i<iterations; i++) {
       run_iteration(stage1_only, hotbuffers);
     }
@@ -386,7 +398,7 @@ struct benchmarker {
       prefix,
       "Speed",
       stage.elapsed_ns() / static_cast<double>(stats->blocks), // per block
-      percent(stage.elapsed_sec(), all_stages.elapsed_sec()), // %
+      percent(stage.elapsed_sec(), all_stages_without_allocation.elapsed_sec()), // %
       stage.elapsed_ns() / static_cast<double>(stats->bytes), // per byte
       stage.elapsed_ns() / static_cast<double>(stats->structurals), // per structural
       (static_cast<double>(json.size()) / 1000000000.0) / stage.elapsed_sec() // GB/s
@@ -397,7 +409,7 @@ struct benchmarker {
         prefix,
         "Cycles",
         stage.cycles() / static_cast<double>(stats->blocks),
-        percent(stage.cycles(), all_stages.cycles()),
+        percent(stage.cycles(), all_stages_without_allocation.cycles()),
         stage.cycles() / static_cast<double>(stats->bytes),
         stage.cycles() / static_cast<double>(stats->structurals),
         (stage.cycles() / stage.elapsed_sec()) / 1000000000.0
@@ -406,7 +418,7 @@ struct benchmarker {
         prefix,
         "Instructions",
         stage.instructions() / static_cast<double>(stats->blocks),
-        percent(stage.instructions(), all_stages.instructions()),
+        percent(stage.instructions(), all_stages_without_allocation.instructions()),
         stage.instructions() / static_cast<double>(stats->bytes),
         stage.instructions() / static_cast<double>(stats->structurals),
         stage.instructions() / static_cast<double>(stage.cycles())
@@ -417,9 +429,9 @@ struct benchmarker {
         prefix,
         "Misses",
         stage.branch_misses(),
-        percent(stage.branch_misses(), all_stages.branch_misses()),
+        percent(stage.branch_misses(), all_stages_without_allocation.branch_misses()),
         stage.cache_misses(),
-        percent(stage.cache_misses(), all_stages.cache_misses()),
+        percent(stage.cache_misses(), all_stages_without_allocation.cache_misses()),
         stage.cache_references()
       );
     }
@@ -434,7 +446,7 @@ struct benchmarker {
 
   void print(bool tabbed_output) const {
     if (tabbed_output) {
-      char* filename_copy = (char*)malloc(strlen(filename)+1);
+      char* filename_copy = reinterpret_cast<char*>(malloc(strlen(filename)+1));
       SIMDJSON_PUSH_DISABLE_WARNINGS
       SIMDJSON_DISABLE_DEPRECATED_WARNING // Validated CRT_SECURE safe here
       strcpy(filename_copy, filename);
@@ -456,14 +468,14 @@ struct benchmarker {
                 allocate_stage.best.cycles() / static_cast<double>(json.size()),
                 stage1.best.cycles() / static_cast<double>(json.size()),
                 stage2.best.cycles() / static_cast<double>(json.size()),
-                all_stages.best.cycles() / static_cast<double>(json.size()),
-                gb / all_stages.best.elapsed_sec(),
+                all_stages_without_allocation.best.cycles() / static_cast<double>(json.size()),
+                gb / all_stages_without_allocation.best.elapsed_sec(),
                 gb / stage1.best.elapsed_sec(),
                 gb / stage2.best.elapsed_sec());
       } else {
         printf("\"%s\"\t\t\t\t\t%f\t%f\t%f\n",
                 base,
-                gb / all_stages.best.elapsed_sec(),
+                gb / all_stages_without_allocation.best.elapsed_sec(),
                 gb / stage1.best.elapsed_sec(),
                 gb / stage2.best.elapsed_sec());
       }
@@ -490,10 +502,10 @@ struct benchmarker {
           stats->blocks_with_16_structurals_flipped, percent(stats->blocks_with_16_structurals_flipped, stats->blocks));
       }
       printf("\n");
-      printf("All Stages\n");
-      print_aggregate("|    "   , all_stages.best);
+      printf("All Stages (excluding allocation)\n");
+      print_aggregate("|    "   , all_stages_without_allocation.best);
       // frequently, allocation is a tiny fraction of the running time so we omit it
-      if(allocate_stage.best.elapsed_sec() > 0.01 * all_stages.best.elapsed_sec()) {
+      if(allocate_stage.best.elapsed_sec() > 0.01 * all_stages_without_allocation.best.elapsed_sec()) {
         printf("|- Allocation\n");
         print_aggregate("|    ", allocate_stage.best);
       }
@@ -504,17 +516,16 @@ struct benchmarker {
       if (collector.has_events()) {
         double freq1 = (stage1.best.cycles() / stage1.best.elapsed_sec()) / 1000000000.0;
         double freq2 = (stage2.best.cycles() / stage2.best.elapsed_sec()) / 1000000000.0;
-        double freqall = (all_stages.best.cycles() / all_stages.best.elapsed_sec()) / 1000000000.0;
+        double freqall = (all_stages_without_allocation.best.cycles() / all_stages_without_allocation.best.elapsed_sec()) / 1000000000.0;
         double freqmin = min(freq1, freq2);
         double freqmax = max(freq1, freq2);
         if((freqall < 0.95 * freqmin) or (freqall > 1.05 * freqmax)) {
           printf("\nWarning: The processor frequency fluctuates in an expected way!!!\n"
-          "Expect the overall speed not to match stage 1 and stage 2 speeds.\n"
           "Range for stage 1 and stage 2 : [%.3f GHz, %.3f GHz], overall: %.3f GHz.\n",
           freqmin, freqmax, freqall);
         }
       }
-      printf("\n%.1f documents parsed per second (best)\n", 1.0/static_cast<double>(all_stages.best.elapsed_sec()));
+      printf("\n%.1f documents parsed per second (best)\n", 1.0/static_cast<double>(all_stages_without_allocation.best.elapsed_sec()));
     }
   }
 };

benchmark/distinct_user_id/distinct_user_id.h

@@ -0,0 +1,53 @@
+
+#pragma once
+
+#include "json_benchmark/file_runner.h"
+#include <vector>
+
+namespace distinct_user_id {
+
+using namespace json_benchmark;
+
+template<typename I>
+struct runner : public file_runner<I> {
+  std::vector<uint64_t> result{};
+
+  bool setup(benchmark::State &state) {
+    return this->load_json(state, TWITTER_JSON);
+  }
+
+  bool before_run(benchmark::State &state) {
+    if (!file_runner<I>::before_run(state)) { return false; }
+    result.clear();
+    return true;
+  }
+
+  bool run(benchmark::State &) {
+    return this->implementation.run(this->json, result);
+  }
+
+  bool after_run(benchmark::State &state) {
+    if (!file_runner<I>::after_run(state)) { return false; }
+    std::sort(result.begin(), result.end());
+    auto last = std::unique(result.begin(), result.end());
+    result.erase(last, result.end());
+    return true;
+  }
+
+  template<typename R>
+  bool diff(benchmark::State &state, runner<R> &reference) {
+    return diff_results(state, result, reference.result, diff_flags::NONE);
+  }
+
+  size_t items_per_iteration() {
+    return result.size();
+  }
+};
+
+struct simdjson_dom;
+
+template<typename I> simdjson_really_inline static void distinct_user_id(benchmark::State &state) {
+  run_json_benchmark<runner<I>, runner<simdjson_dom>>(state);
+}
+
+} // namespace distinct_user_id

benchmark/distinct_user_id/nlohmann_json.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+struct nlohmann_json {
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    auto root = nlohmann::json::parse(json.data(), json.data() + json.size());
+    for (auto tweet : root["statuses"]) {
+      result.push_back(tweet["user"]["id"]);
+      if (tweet.contains("retweeted_status")) {
+        result.push_back(tweet["retweeted_status"]["user"]["id"]);
+      }
+    }
+
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(distinct_user_id, nlohmann_json)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_COMPETITION_NLOHMANN_JSON

benchmark/distinct_user_id/nlohmann_json_sax.h

@@ -0,0 +1,59 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+using json = nlohmann::json;
+
+struct nlohmann_json_sax {
+    struct Handler : json::json_sax_t
+    {
+        std::vector<uint64_t>& result;
+        bool user = false;
+        bool user_id = false;
+        Handler(std::vector<uint64_t> &r) : result(r) { }
+
+        bool key(string_t& val) override {
+            // Assume that valid user/id pairs appear only once in main array of user objects
+            if (user) { // If already found user object, find id key
+                if (val.compare("id") == 0) { user_id = true; }
+            }
+            else if (val.compare("user") == 0) { user = true; } // Otherwise, find user object
+            return true;
+        }
+        bool number_unsigned(number_unsigned_t val) override {
+            if (user_id) {
+                result.emplace_back(val);
+                user = false;
+                user_id = false;
+            }
+            return true;
+        }
+        // Irrelevant events
+        bool null() override { return true; }
+        bool boolean(bool val) override { return true; }
+        bool number_float(number_float_t val, const string_t& s) override { return true; }
+        bool number_integer(number_integer_t val) override { return true; }
+        bool string(string_t& val) override { return true; }
+        bool start_object(std::size_t elements) override { return true; }
+        bool end_object() override { return true; }
+        bool start_array(std::size_t elements) override { return true; }
+        bool end_array() override { return true; }
+        bool binary(json::binary_t& val) override { return true; }
+        bool parse_error(std::size_t position, const std::string& last_token, const json::exception& ex) override { return false; }
+    }; // Handler
+
+    bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+        Handler handler(result);
+        json::sax_parse(json.data(), &handler);
+
+        return true;
+    }
+}; // nlohmann_json_sax
+BENCHMARK_TEMPLATE(distinct_user_id, nlohmann_json_sax)->UseManualTime();
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_COMPETITION_NLOHMANN_JSON

benchmark/distinct_user_id/rapidjson.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+using namespace rapidjson;
+
+struct rapidjson_base {
+  Document doc{};
+
+  bool run(Document &root, std::vector<uint64_t> &result) {
+    if (root.HasParseError()) { printf("parse error\n"); return false; }
+    if (!root.IsObject()) { printf("root is not an object\n"); return false; }
+    auto statuses = root.FindMember("statuses");
+    if (statuses == root.MemberEnd() || !statuses->value.IsArray()) { printf("statuses is not an array\n"); return false; }
+    for (auto &tweet : statuses->value.GetArray()) {
+      if (!tweet.IsObject()) { return false; }
+      auto user = tweet.FindMember("user");
+      if (user == tweet.MemberEnd() || !user->value.IsObject()) { printf("user is not an object\n"); return false; }
+      auto id = user->value.FindMember("id");
+      if (id == user->value.MemberEnd() || !id->value.IsUint64()) { printf("id is not an int\n"); return false; }
+      result.push_back(id->value.GetUint64());
+
+      auto retweet = tweet.FindMember("retweeted_status");
+      if (retweet != tweet.MemberEnd()) {
+        if (!retweet->value.IsObject()) { printf("retweet is not an object\n"); return false; }
+        user = retweet->value.FindMember("user");
+        if (user == retweet->value.MemberEnd() || !user->value.IsObject()) { printf("rewtweet.user is not an object\n"); return false; }
+        id = user->value.FindMember("id");
+        if (id == user->value.MemberEnd() || !id->value.IsUint64()) { printf("retweet.id is not an int\n"); return false; }
+        result.push_back(id->value.GetUint64());
+      }
+    }
+
+    return true;
+  }
+};
+
+struct rapidjson : rapidjson_base {
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    return rapidjson_base::run(doc.Parse<kParseValidateEncodingFlag>(json.data()), result);
+  }
+};
+BENCHMARK_TEMPLATE(distinct_user_id, rapidjson)->UseManualTime();
+
+struct rapidjson_insitu : rapidjson_base {
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    return rapidjson_base::run(doc.ParseInsitu<kParseValidateEncodingFlag>(json.data()), result);
+  }
+};
+BENCHMARK_TEMPLATE(distinct_user_id, rapidjson_insitu)->UseManualTime();
+
+} // namespace partial_tweets
+
+#endif // SIMDJSON_COMPETITION_RAPIDJSON

benchmark/distinct_user_id/rapidjson_sax.h

@@ -0,0 +1,61 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+
+#include "distinct_user_id.h"
+#include <string.h>
+namespace distinct_user_id {
+
+using namespace rapidjson;
+
+struct rapidjson_sax {
+    struct Handler {
+        std::vector<uint64_t>& result;
+        bool user = false;
+        bool user_id = false;
+        Handler(std::vector<uint64_t> &r) : result(r) { }
+
+        bool Key(const char* key, SizeType length, bool copy) {
+            // Assume that valid user/id pairs appear only once in main array of user objects
+            if (user) { // If already found user object, find id key
+                if ((length == 2) && memcmp(key,"id",2) == 0) { user_id = true; }
+            }
+            else if ((length == 4) && memcmp(key,"user",4) == 0) { user = true; } // Otherwise, find user object
+            return true;
+        }
+        bool Uint(unsigned i) {     // id values are treated as Uint (not Uint64) by the reader
+            if (user_id) {  // Getting id if previous key was "id" for a user
+                result.emplace_back(i);
+                user_id = false;
+                user = false;
+            }
+            return true;
+        }
+        // Irrelevant events
+        bool Null() { return true; }
+        bool Bool(bool b) { return true; }
+        bool Double(double d) { return true; }
+        bool Int(int i) { return true; }
+        bool Int64(int64_t i) { return true; }
+        bool Uint64(uint64_t i) { return true; }
+        bool RawNumber(const char* str, SizeType length, bool copy) { return true; }
+        bool String(const char* str, SizeType length, bool copy) { return true; }
+        bool StartObject() { return true; }
+        bool EndObject(SizeType memberCount) { return true; }
+        bool StartArray() { return true; }
+        bool EndArray(SizeType elementCount) { return true; }
+    }; // handler
+
+    bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+        Reader reader;
+        Handler handler(result);
+        InsituStringStream ss(json.data());
+        reader.Parse<kParseInsituFlag | kParseValidateEncodingFlag | kParseFullPrecisionFlag>(ss,handler);
+        return true;
+    }
+
+}; // rapid_jason_sax
+BENCHMARK_TEMPLATE(distinct_user_id, rapidjson_sax)->UseManualTime();
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_COMPETITION_RAPIDJSON

benchmark/distinct_user_id/sajson.h

@@ -0,0 +1,80 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_SAJSON
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+struct sajson {
+  size_t ast_buffer_size{0};
+  size_t *ast_buffer{nullptr};
+  simdjson_really_inline std::string_view get_string_view(const ::sajson::value &obj, std::string_view key) {
+    auto val = obj.get_value_of_key({key.data(), key.length()});
+    if (val.get_type() != ::sajson::TYPE_STRING) { throw "field is not a string"; }
+    return { val.as_cstring(), val.get_string_length() };
+  }
+  simdjson_really_inline uint64_t get_str_uint64(const ::sajson::value &obj, std::string_view key) {
+    // Since sajson only supports 53-bit numbers, and IDs in twitter.json can be > 53 bits, we read the corresponding id_str and parse that.
+    auto val = obj.get_value_of_key({key.data(), key.length()});
+    if (val.get_type() != ::sajson::TYPE_STRING) { throw "field not a string"; }
+    auto str = val.as_cstring();
+    char *endptr;
+    uint64_t result = strtoull(str, &endptr, 10);
+    if (endptr != &str[val.get_string_length()]) { throw "field is a string, but not an integer string"; }
+    return result;
+  }
+
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    using namespace sajson;
+    if (!ast_buffer) {
+      ast_buffer_size = json.size();
+      ast_buffer = (size_t *)std::malloc(ast_buffer_size * sizeof(size_t));
+    }
+    auto doc = parse(
+      bounded_allocation(ast_buffer, ast_buffer_size),
+      mutable_string_view(json.size(), json.data())
+    );
+    if (!doc.is_valid()) { return false; }
+
+    auto root = doc.get_root();
+    if (root.get_type() != TYPE_OBJECT) { return false; }
+    auto statuses = root.get_value_of_key({"statuses", strlen("statuses")});
+    if (statuses.get_type() != TYPE_ARRAY) { return false; }
+
+    for (size_t i=0; i<statuses.get_length(); i++) {
+      auto tweet = statuses.get_array_element(i);
+
+      // get tweet.user.id
+      if (tweet.get_type() != TYPE_OBJECT) { return false; }
+      auto user = tweet.get_value_of_key({"user", strlen("user")});
+      if (user.get_type() != TYPE_OBJECT) { return false; }
+      result.push_back(get_str_uint64(user, "id_str"));
+
+      // get tweet.retweeted_status.user.id
+      auto retweet = tweet.get_value_of_key({"retweeted_status", strlen("retweeted_status")});
+      switch (retweet.get_type()) {
+        case TYPE_OBJECT: {
+          auto retweet_user = retweet.get_value_of_key({"user", strlen("user")});
+          if (retweet_user.get_type() != TYPE_OBJECT) { return false; }
+          result.push_back(get_str_uint64(retweet_user, "id_str"));
+          break;
+        }
+        // TODO distinguish null and missing. null is bad. missing is fine.
+        case TYPE_NULL:
+          break;
+        default:
+          return false;
+      }
+    }
+
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(distinct_user_id, sajson)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_COMPETITION_SAJSON
+

benchmark/distinct_user_id/simdjson_dom.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+using namespace simdjson;
+
+struct simdjson_dom {
+  dom::parser parser{};
+
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    // Walk the document, parsing as we go
+    auto doc = parser.parse(json);
+    for (dom::object tweet : doc["statuses"]) {
+      // We believe that all statuses have a matching
+      // user, and we are willing to throw when they do not.
+      result.push_back(tweet["user"]["id"]);
+      // Not all tweets have a "retweeted_status", but when they do
+      // we want to go and find the user within.
+      auto retweet = tweet["retweeted_status"];
+      if (retweet.error() != NO_SUCH_FIELD) {
+        result.push_back(retweet["user"]["id"]);
+      }
+    }
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(distinct_user_id, simdjson_dom)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/distinct_user_id/simdjson_dom_json_pointer.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+using namespace simdjson;
+
+struct simdjson_dom_json_pointer {
+  dom::parser parser{};
+
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    // Walk the document, parsing as we go
+    auto doc = parser.parse(json);
+    for (dom::object tweet : doc["statuses"]) {
+      // We believe that all statuses have a matching
+      // user, and we are willing to throw when they do not.
+      result.push_back(tweet.at_pointer("/user/id"));
+      // Not all tweets have a "retweeted_status", but when they do
+      // we want to go and find the user within.
+      auto retweet_id = tweet.at_pointer("/retweeted_status/user/id");
+      if (retweet_id.error() != NO_SUCH_FIELD) {
+        result.push_back(retweet_id);
+      }
+    }
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(distinct_user_id, simdjson_dom_json_pointer)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/distinct_user_id/simdjson_ondemand.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+using namespace simdjson;
+
+struct simdjson_ondemand {
+  ondemand::parser parser{};
+
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    // Walk the document, parsing as we go
+    auto doc = parser.iterate(json);
+    for (ondemand::object tweet : doc.find_field("statuses")) {
+      // We believe that all statuses have a matching
+      // user, and we are willing to throw when they do not.
+      result.push_back(tweet.find_field("user").find_field("id"));
+      // Not all tweets have a "retweeted_status", but when they do
+      // we want to go and find the user within.
+      auto retweet = tweet.find_field("retweeted_status");
+      if (!retweet.error()) {
+        result.push_back(retweet.find_field("user").find_field("id"));
+      }
+    }
+
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(distinct_user_id, simdjson_ondemand)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/distinct_user_id/simdjson_ondemand_json_pointer.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+using namespace simdjson;
+
+struct simdjson_ondemand_json_pointer {
+  ondemand::parser parser{};
+
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    // Walk the document, parsing as we go
+    auto doc = parser.iterate(json);
+    for (ondemand::object tweet : doc.find_field("statuses")) {
+      // We believe that all statuses have a matching
+      // user, and we are willing to throw when they do not.
+      result.push_back(tweet.at_pointer("/user/id"));
+      // Not all tweets have a "retweeted_status", but when they do
+      // we want to go and find the user within.
+      auto retweet_id = tweet.at_pointer("/retweeted_status/user/id");
+      if (retweet_id.error() != NO_SUCH_FIELD) {
+        result.push_back(retweet_id);
+      }
+    }
+
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(distinct_user_id, simdjson_ondemand_json_pointer)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/distinct_user_id/yyjson.h

@@ -0,0 +1,61 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_YYJSON
+
+#include "distinct_user_id.h"
+
+namespace distinct_user_id {
+
+struct yyjson_base {
+  bool run(yyjson_doc *doc, std::vector<uint64_t> &result) {
+    if (!doc) { return false; }
+    yyjson_val *root = yyjson_doc_get_root(doc);
+    if (!yyjson_is_obj(root)) { return false; }
+    yyjson_val *statuses = yyjson_obj_get(root, "statuses");
+    if (!yyjson_is_arr(statuses)) { return false; }
+
+    // Walk the document, parsing the tweets as we go
+    size_t tweet_idx, tweets_max;
+    yyjson_val *tweet;
+    yyjson_arr_foreach(statuses, tweet_idx, tweets_max, tweet) {
+      auto user = yyjson_obj_get(tweet, "user");
+      if (!yyjson_is_obj(user)) { return false; }
+      auto id = yyjson_obj_get(user, "id");
+      if (!yyjson_is_uint(id)) { return false; }
+      result.push_back(yyjson_get_uint(id));
+
+      // Not all tweets have a "retweeted_status", but when they do
+      // we want to go and find the user within.
+      auto retweet = yyjson_obj_get(tweet, "retweeted_status");
+      if (retweet) {
+        if (!yyjson_is_obj(retweet)) { return false; }
+        user = yyjson_obj_get(retweet, "user");
+        if (!yyjson_is_obj(user)) { return false; }
+        id = yyjson_obj_get(user, "id");
+        if (!yyjson_is_uint(id)) { return false; }
+        result.push_back(yyjson_get_sint(id));
+      }
+    }
+
+    return true;
+  }
+
+};
+
+struct yyjson : yyjson_base {
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    return yyjson_base::run(yyjson_read(json.data(), json.size(), 0), result);
+  }
+};
+BENCHMARK_TEMPLATE(distinct_user_id, yyjson)->UseManualTime();
+
+struct yyjson_insitu : yyjson_base {
+  bool run(simdjson::padded_string &json, std::vector<uint64_t> &result) {
+    return yyjson_base::run(yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0), result);
+  }
+};
+BENCHMARK_TEMPLATE(distinct_user_id, yyjson_insitu)->UseManualTime();
+
+} // namespace distinct_user_id
+
+#endif // SIMDJSON_COMPETITION_YYJSON

benchmark/distinctuseridcompetition.cpp

@@ -1,406 +0,0 @@
-#include "simdjson.h"
-#include <algorithm>
-#include <cstring>
-#include <unistd.h>
-#include <vector>
-
-#include "benchmark.h"
-
-SIMDJSON_PUSH_DISABLE_ALL_WARNINGS
-
-// #define RAPIDJSON_SSE2 // bad for performance
-// #define RAPIDJSON_SSE42 // bad for performance
-#include "rapidjson/document.h"
-#include "rapidjson/reader.h"
-#include "rapidjson/stringbuffer.h"
-#include "rapidjson/writer.h"
-
-#include "sajson.h"
-
-SIMDJSON_POP_DISABLE_WARNINGS
-
-using namespace rapidjson;
-
-bool equals(const char *s1, const char *s2) { return strcmp(s1, s2) == 0; }
-
-void remove_duplicates(std::vector<int64_t> &v) {
-  std::sort(v.begin(), v.end());
-  auto last = std::unique(v.begin(), v.end());
-  v.erase(last, v.end());
-}
-
-void print_vec(const std::vector<int64_t> &v) {
-  for (auto i : v) {
-    std::cout << i << " ";
-  }
-  std::cout << std::endl;
-}
-
-// clang-format off
-
-// simdjson_recurse below come be implemented like so but it is slow:
-/*void simdjson_recurse(std::vector<int64_t> & v, simdjson::dom::element element) {
-  error_code error;
-  if (element.is_array()) {
-    dom::array array;
-    error = element.get(array);
-    for (auto child : array) {
-      if (child.is<simdjson::dom::array>() || child.is<simdjson::dom::object>()) {
-        simdjson_recurse(v, child);
-      }
-    }
-  } else if (element.is_object()) {
-    int64_t id;
-    error = element["user"]["id"].get(id);
-    if(!error) {
-      v.push_back(id);
-    }
-    for (auto [key, value] : object) {
-      if (value.is<simdjson::dom::array>() || value.is<simdjson::dom::object>()) {
-        simdjson_recurse(v, value);
-      }
-    }
-  }
-}*/
-// clang-format on
-
-
-really_inline void simdjson_recurse(std::vector<int64_t> & v, simdjson::dom::element element);
-void simdjson_recurse(std::vector<int64_t> & v, simdjson::dom::array array) {
-  for (auto child : array) {
-    simdjson_recurse(v, child);
-  }
-}
-void simdjson_recurse(std::vector<int64_t> & v, simdjson::dom::object object) {
-  for (auto [key, value] : object) {
-    if((key.size() == 4) && (memcmp(key.data(), "user", 4) == 0)) {
-      // we are in an object under the key "user"
-      simdjson::error_code error;
-      simdjson::dom::object child_object;
-      simdjson::dom::object child_array;
-      if (not (error = value.get(child_object))) {
-        for (auto [child_key, child_value] : child_object) {
-          if((child_key.size() == 2) && (memcmp(child_key.data(), "id", 2) == 0)) {
-            int64_t x;
-            if (not (error = child_value.get(x))) {
-              v.push_back(x);
-            }
-          }
-          simdjson_recurse(v, child_value);
-        }
-      } else if (not (error = value.get(child_array))) {
-        simdjson_recurse(v, child_array);
-      }
-      // end of: we are in an object under the key "user"
-    } else {
-      simdjson_recurse(v, value);
-    }
-  }
-}
-really_inline void simdjson_recurse(std::vector<int64_t> & v, simdjson::dom::element element) {
-  UNUSED simdjson::error_code error;
-  simdjson::dom::array array;
-  simdjson::dom::object object;
-  if (not (error = element.get(array))) {
-    simdjson_recurse(v, array);
-  } else if (not (error = element.get(object))) {
-    simdjson_recurse(v, object);
-  }
-}
-
-really_inline std::vector<int64_t>
-simdjson_just_dom(simdjson::dom::element doc) {
-  std::vector<int64_t> answer;
-  simdjson_recurse(answer, doc);
-  remove_duplicates(answer);
-  return answer;
-}
-
-really_inline std::vector<int64_t>
-simdjson_compute_stats(const simdjson::padded_string &p) {
-  std::vector<int64_t> answer;
-  simdjson::dom::parser parser;
-  simdjson::dom::element doc;
-  auto error = parser.parse(p).get(doc);
-  if (!error) {
-    simdjson_recurse(answer, doc);
-    remove_duplicates(answer);
-  }
-  return answer;
-}
-
-really_inline simdjson::error_code
-simdjson_just_parse(const simdjson::padded_string &p) {
-  simdjson::dom::parser parser;
-  return parser.parse(p).error();
-}
-
-void sajson_traverse(std::vector<int64_t> &answer, const sajson::value &node) {
-  using namespace sajson;
-  switch (node.get_type()) {
-  case TYPE_ARRAY: {
-    auto length = node.get_length();
-    for (size_t i = 0; i < length; ++i) {
-      sajson_traverse(answer, node.get_array_element(i));
-    }
-    break;
-  }
-  case TYPE_OBJECT: {
-    auto length = node.get_length();
-    // sajson has O(log n) find_object_key, but we still visit each node anyhow
-    // because we need to visit all values.
-    for (auto i = 0u; i < length; ++i) {
-      auto key = node.get_object_key(i); // expected: sajson::string
-      bool found_user =
-          (key.length() == 4) && (memcmp(key.data(), "user", 4) == 0);
-      if (found_user) {                             // found a user!!!
-        auto user_value = node.get_object_value(i); // get the value
-        if (user_value.get_type() ==
-            TYPE_OBJECT) { // the value should be an object
-          // now we know that we only need one value
-          auto user_value_length = user_value.get_length();
-          auto right_index =
-              user_value.find_object_key(sajson::string("id", 2));
-          if (right_index < user_value_length) {
-            auto v = user_value.get_object_value(right_index);
-            if (v.get_type() == TYPE_INTEGER) { // check that it is an integer
-              answer.push_back(v.get_integer_value()); // record it!
-            } else if (v.get_type() == TYPE_DOUBLE) {
-              answer.push_back((int64_t)v.get_double_value()); // record it!
-            }
-          }
-        }
-      }
-      sajson_traverse(answer, node.get_object_value(i));
-    }
-    break;
-  }
-  case TYPE_NULL:
-  case TYPE_FALSE:
-  case TYPE_TRUE:
-  case TYPE_STRING:
-  case TYPE_DOUBLE:
-  case TYPE_INTEGER:
-    break;
-  default:
-    assert(false && "unknown node type");
-  }
-}
-
-really_inline std::vector<int64_t>
-sasjon_just_dom(sajson::document &d) {
-  std::vector<int64_t> answer;
-  sajson_traverse(answer, d.get_root());
-  remove_duplicates(answer);
-  return answer;
-}
-
-really_inline std::vector<int64_t>
-sasjon_compute_stats(const simdjson::padded_string &p) {
-  std::vector<int64_t> answer;
-  char *buffer = (char *)malloc(p.size());
-  memcpy(buffer, p.data(), p.size());
-  auto d = sajson::parse(sajson::dynamic_allocation(),
-                         sajson::mutable_string_view(p.size(), buffer));
-  if (!d.is_valid()) {
-    free(buffer);
-    return answer;
-  }
-  sajson_traverse(answer, d.get_root());
-  free(buffer);
-  remove_duplicates(answer);
-  return answer;
-}
-
-really_inline bool
-sasjon_just_parse(const simdjson::padded_string &p) {
-  char *buffer = (char *)malloc(p.size());
-  memcpy(buffer, p.data(), p.size());
-  auto d = sajson::parse(sajson::dynamic_allocation(),
-                         sajson::mutable_string_view(p.size(), buffer));
-  bool answer = !d.is_valid();
-  free(buffer);
-  return answer;
-}
-
-void rapid_traverse(std::vector<int64_t> &answer, const rapidjson::Value &v) {
-  switch (v.GetType()) {
-  case kObjectType:
-    for (Value::ConstMemberIterator m = v.MemberBegin(); m != v.MemberEnd();
-         ++m) {
-      bool found_user = (m->name.GetStringLength() == 4) &&
-                        (memcmp(m->name.GetString(), "user", 4) == 0);
-      if (found_user) {
-        const rapidjson::Value &child = m->value;
-        if (child.GetType() == kObjectType) {
-          for (Value::ConstMemberIterator k = child.MemberBegin();
-               k != child.MemberEnd(); ++k) {
-            if (equals(k->name.GetString(), "id")) {
-              const rapidjson::Value &val = k->value;
-              if (val.GetType() == kNumberType) {
-                answer.push_back(val.GetInt64());
-              }
-            }
-          }
-        }
-      }
-      rapid_traverse(answer, m->value);
-    }
-    break;
-  case kArrayType:
-    for (Value::ConstValueIterator i = v.Begin(); i != v.End();
-         ++i) { // v.Size();
-      rapid_traverse(answer, *i);
-    }
-    break;
-  case kNullType:
-  case kFalseType:
-  case kTrueType:
-  case kStringType:
-  case kNumberType:
-  default:
-    break;
-  }
-}
-
-really_inline std::vector<int64_t>
-rapid_just_dom(rapidjson::Document &d) {
-  std::vector<int64_t> answer;
-  rapid_traverse(answer, d);
-  remove_duplicates(answer);
-  return answer;
-}
-
-really_inline std::vector<int64_t>
-rapid_compute_stats(const simdjson::padded_string &p) {
-  std::vector<int64_t> answer;
-  char *buffer = (char *)malloc(p.size() + 1);
-  memcpy(buffer, p.data(), p.size());
-  buffer[p.size()] = '\0';
-  rapidjson::Document d;
-  d.ParseInsitu<kParseValidateEncodingFlag>(buffer);
-  if (d.HasParseError()) {
-    free(buffer);
-    return answer;
-  }
-  rapid_traverse(answer, d);
-  free(buffer);
-  remove_duplicates(answer);
-  return answer;
-}
-
-really_inline bool
-rapid_just_parse(const simdjson::padded_string &p) {
-  char *buffer = (char *)malloc(p.size() + 1);
-  memcpy(buffer, p.data(), p.size());
-  buffer[p.size()] = '\0';
-  rapidjson::Document d;
-  d.ParseInsitu<kParseValidateEncodingFlag>(buffer);
-  bool answer = d.HasParseError();
-  free(buffer);
-  return answer;
-}
-
-int main(int argc, char *argv[]) {
-  bool verbose = false;
-  bool just_data = false;
-
-  int c;
-  while ((c = getopt(argc, argv, "vt")) != -1)
-    switch (c) {
-    case 't':
-      just_data = true;
-      break;
-    case 'v':
-      verbose = true;
-      break;
-    default:
-      abort();
-    }
-  if (optind >= argc) {
-    std::cerr
-        << "Using different parsers, we compute the content statistics of "
-           "JSON documents."
-        << std::endl;
-    std::cerr << "Usage: " << argv[0] << " <jsonfile>" << std::endl;
-    std::cerr << "Or " << argv[0] << " -v <jsonfile>" << std::endl;
-    exit(1);
-  }
-  const char *filename = argv[optind];
-  if (optind + 1 < argc) {
-    std::cerr << "warning: ignoring everything after " << argv[optind + 1]
-              << std::endl;
-  }
-  simdjson::padded_string p;
-  auto error = simdjson::padded_string::load(filename).get(p);
-  if (error) {
-    std::cerr << "Could not load the file " << filename << std::endl;
-    return EXIT_FAILURE;
-  }
-  // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
-  if (verbose) {
-    std::cout << "Input has ";
-    if (p.size() > 1000 * 1000)
-      std::cout << p.size() / (1000 * 1000) << " MB ";
-    else if (p.size() > 1000)
-      std::cout << p.size() / 1000 << " KB ";
-    else
-      std::cout << p.size() << " B ";
-    std::cout << std::endl;
-  }
-  std::vector<int64_t> s1 = simdjson_compute_stats(p);
-  if (verbose) {
-    printf("simdjson: ");
-    print_vec(s1);
-  }
-  std::vector<int64_t> s2 = rapid_compute_stats(p);
-  if (verbose) {
-    printf("rapid:    ");
-    print_vec(s2);
-  }
-  std::vector<int64_t> s3 = sasjon_compute_stats(p);
-  if (verbose) {
-    printf("sasjon:   ");
-    print_vec(s3);
-  }
-  assert(s1 == s2);
-  assert(s1 == s3);
-  size_t size = s1.size();
-
-  int repeat = 500;
-  size_t volume = p.size();
-  if (just_data) {
-    printf(
-        "name cycles_per_byte cycles_per_byte_err  gb_per_s gb_per_s_err \n");
-  }
-  BEST_TIME("simdjson ", simdjson_compute_stats(p).size(), size, , repeat,
-            volume, !just_data);
-  BEST_TIME("rapid  ", rapid_compute_stats(p).size(), size, , repeat, volume,
-            !just_data);
-  BEST_TIME("sasjon  ", sasjon_compute_stats(p).size(), size, , repeat, volume,
-            !just_data);
-  BEST_TIME("simdjson (just parse)  ", simdjson_just_parse(p), simdjson::error_code::SUCCESS, , repeat,
-            volume, !just_data);
-  BEST_TIME("rapid  (just parse) ", rapid_just_parse(p), false, , repeat,
-            volume, !just_data);
-  BEST_TIME("sasjon (just parse) ", sasjon_just_parse(p), false, , repeat,
-            volume, !just_data);
-  simdjson::dom::parser parser;
-  simdjson::dom::element doc;
-  error = parser.parse(p).get(doc);
-  BEST_TIME("simdjson (just dom)  ", simdjson_just_dom(doc).size(), size,
-            , repeat, volume, !just_data);
-  char *buffer = (char *)malloc(p.size() + 1);
-  buffer[p.size()] = '\0';
-  memcpy(buffer, p.data(), p.size());
-  rapidjson::Document drapid;
-  drapid.ParseInsitu<kParseValidateEncodingFlag>(buffer);
-  BEST_TIME("rapid  (just dom) ", rapid_just_dom(drapid).size(), size, , repeat,
-            volume, !just_data);
-  memcpy(buffer, p.data(), p.size());
-  auto dsasjon = sajson::parse(sajson::dynamic_allocation(),
-                               sajson::mutable_string_view(p.size(), buffer));
-  BEST_TIME("sasjon (just dom) ", sasjon_just_dom(dsasjon).size(), size, ,
-            repeat, volume, !just_data);
-  free(buffer);
-}

benchmark/dom/CMakeLists.txt

@@ -0,0 +1,16 @@
+include_directories( .. ../linux )
+link_libraries(simdjson-windows-headers test-data)
+link_libraries(simdjson)
+
+add_executable(perfdiff perfdiff.cpp)
+add_executable(parse parse.cpp)
+add_executable(parse_stream parse_stream.cpp)
+add_executable(statisticalmodel statisticalmodel.cpp)
+
+add_executable(parse_noutf8validation parse.cpp)
+target_compile_definitions(parse_noutf8validation PRIVATE SIMDJSON_SKIPUTF8VALIDATION)
+add_executable(parse_nonumberparsing parse.cpp)
+target_compile_definitions(parse_nonumberparsing PRIVATE SIMDJSON_SKIPNUMBERPARSING)
+add_executable(parse_nostringparsing parse.cpp)
+target_compile_definitions(parse_nostringparsing PRIVATE SIMDJSON_SKIPSTRINGPARSING)
+include(checkperf.cmake)

benchmark/dom/checkperf.cmake

@@ -5,9 +5,12 @@
 # checkperf-repo: initialize and sync reference repository (first time only)
 # TEST checkperf: runs the actual checkperf test
 
+option(SIMDJSON_ENABLE_DOM_CHECKPERF "Enable DOM performance comparison with main branch" OFF)
+
+
 # Clone the repository if it's not there
 find_package(Git QUIET)
-if (SIMDJSON_IS_UNDER_GIT AND Git_FOUND AND (GIT_VERSION_STRING VERSION_GREATER  "2.1.4") AND (NOT CMAKE_GENERATOR MATCHES Ninja) ) # We use "-C" which requires a recent git
+if (SIMDJSON_ENABLE_DOM_CHECKPERF AND Git_FOUND AND (GIT_VERSION_STRING VERSION_GREATER  "2.1.4") AND (NOT CMAKE_GENERATOR MATCHES Ninja) AND (NOT MSVC) ) # We use "-C" which requires a recent git
   message(STATUS "Git is available and it is recent. We are enabling checkperf targets.")
   # sync_git_repository(myrepo ...) creates two targets:
   # myrepo - if the repo does not exist, creates and syncs it against the origin branch
@@ -61,7 +64,13 @@ if (SIMDJSON_IS_UNDER_GIT AND Git_FOUND AND (GIT_VERSION_STRING VERSION_GREATER
     OUTPUT ${SIMDJSON_CHECKPERF_DIR}/build/cmake_install.cmake # We make many things but this seems the most cross-platform one we can depend on
     COMMAND
     ${CMAKE_COMMAND} -E env CXX=${CMAKE_CXX_COMPILER} CC=${CMAKE_C_COMPILER}
-    ${CMAKE_COMMAND} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_COMPETITION=OFF -G ${CMAKE_GENERATOR} ..
+    ${CMAKE_COMMAND}
+    -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
+    -DSIMDJSON_GOOGLE_BENCHMARKS=OFF
+    -DSIMDJSON_COMPETITION=OFF
+    -DSIMDJSON_DEVELOPER_MODE=YES
+    -G ${CMAKE_GENERATOR}
+    ..
     WORKING_DIRECTORY ${SIMDJSON_CHECKPERF_DIR}/build
     DEPENDS ${SIMDJSON_CHECKPERF_DIR}/build/CMakeCache.txt
   )
@@ -70,7 +79,7 @@ if (SIMDJSON_IS_UNDER_GIT AND Git_FOUND AND (GIT_VERSION_STRING VERSION_GREATER
   if (CMAKE_CONFIGURATION_TYPES)
     set(CHECKPERF_PARSE ${SIMDJSON_CHECKPERF_DIR}/build/benchmark/$<CONFIGURATION>/parse)
   else()
-    set(CHECKPERF_PARSE ${SIMDJSON_CHECKPERF_DIR}/build/benchmark/parse)
+    set(CHECKPERF_PARSE ${SIMDJSON_CHECKPERF_DIR}/build/benchmark/dom/parse)
   endif()
   add_custom_target(
     checkperf-parse ALL # TODO is ALL necessary?
@@ -89,13 +98,15 @@ if (SIMDJSON_IS_UNDER_GIT AND Git_FOUND AND (GIT_VERSION_STRING VERSION_GREATER
     # COMMAND ECHO $<TARGET_FILE:perfdiff> \"$<TARGET_FILE:parse> -t ${SIMDJSON_CHECKPERF_ARGS}\" \"${CHECKPERF_PARSE} -t ${SIMDJSON_CHECKPERF_ARGS}\" }
     COMMAND $<TARGET_FILE:perfdiff> $<TARGET_FILE:parse> ${CHECKPERF_PARSE} -H -t ${SIMDJSON_CHECKPERF_ARGS}
   )
-  set_property(TEST checkperf APPEND PROPERTY LABELS per_implementation)
+  set_property(TEST checkperf APPEND PROPERTY LABELS per_implementation explicitonly)
   set_property(TEST checkperf APPEND PROPERTY DEPENDS parse perfdiff ${SIMDJSON_USER_CMAKECACHE})
   set_property(TEST checkperf PROPERTY RUN_SERIAL TRUE)
+  add_dependencies(per_implementation_tests checkperf)
+  add_dependencies(explicitonly_tests checkperf)
 else()
   if (CMAKE_GENERATOR MATCHES Ninja)
    message(STATUS "We disable the checkperf targets under Ninja.")
-  else() 
+  else()
    message(STATUS "Either git is unavailable or else it is too old. We are disabling checkperf targets.")
   endif()
 endif ()

benchmark/dom/parse.cpp

@@ -66,8 +66,10 @@ void print_usage(ostream& out) {
   out << "-H           - Make the buffers hot (reduce page allocation and related OS tasks during parsing) [default]" << endl;
   out << "-a IMPL      - Use the given parser implementation. By default, detects the most advanced" << endl;
   out << "               implementation supported on the host machine." << endl;
-  for (auto impl : simdjson::available_implementations) {
-    out << "-a " << std::left << std::setw(9) << impl->name() << " - Use the " << impl->description() << " parser implementation." << endl;
+  for (auto impl : simdjson::get_available_implementations()) {
+    if(impl->supported_by_runtime_system()) {
+      out << "-a " << std::left << std::setw(9) << impl->name() << " - Use the " << impl->description() << " parser implementation." << endl;
+    }
   }
 }
 
@@ -114,16 +116,18 @@ struct option_struct {
         verbose = true;
         break;
       case 'a': {
-        const implementation *impl = simdjson::available_implementations[optarg];
-        if (!impl) {
+        const implementation *impl = simdjson::get_available_implementations()[optarg];
+        if ((!impl) || (!impl->supported_by_runtime_system())) {
           std::string exit_message = string("Unsupported option value -a ") + optarg + ": expected -a  with one of ";
-          for (auto imple : simdjson::available_implementations) {
-            exit_message += imple->name();
-            exit_message += " ";
+          for (auto imple : simdjson::get_available_implementations()) {
+            if(imple->supported_by_runtime_system()) {
+              exit_message += imple->name();
+              exit_message += " ";
+            }
           }
           exit_usage(exit_message);
         }
-        simdjson::active_implementation = impl;
+        simdjson::get_active_implementation() = impl;
         break;
       }
       case 'C':
@@ -171,7 +175,7 @@ int main(int argc, char *argv[]) {
   option_struct options(argc, argv);
   if (options.verbose) {
     verbose_stream = &cout;
-    verbose() << "Implementation: " << simdjson::active_implementation->name() << endl;
+    verbose() << "Implementation: " << simdjson::get_active_implementation()->name() << endl;
   }
 
   // Start collecting events. We put this early so if it prints an error message, it's the

benchmark/dom/parse_stream.cpp

@@ -25,11 +25,12 @@ int main(int argc, char *argv[]) {
     exit(1);
   }
   const char *filename = argv[1];
-  auto[p, err] = simdjson::padded_string::load(filename);
-  if (err) {
+  auto v = simdjson::padded_string::load(filename);
+  if (v.error()) {
     std::cerr << "Could not load the file " << filename << std::endl;
     return EXIT_FAILURE;
   }
+  const simdjson::padded_string& p = v.value_unsafe();
   if (test_baseline) {
     std::wclog << "Baseline: Getline + normal parse... " << std::endl;
     std::cout << "Gigabytes/second\t"

benchmark/dom/statisticalmodel.cpp

@@ -41,7 +41,7 @@ using stat_t = struct stat_s;
 
 
 
-really_inline void simdjson_process_atom(stat_t &s,
+simdjson_really_inline void simdjson_process_atom(stat_t &s,
                                          simdjson::dom::element element) {
   if (element.is<int64_t>()) {
     s.integer_count++;
@@ -50,9 +50,9 @@ really_inline void simdjson_process_atom(stat_t &s,
   } else if(element.is<double>()) {
     s.float_count++;
   } else if (element.is<bool>()) {
-    simdjson::error_code err;
     bool v;
-    err = element.get(v);
+    simdjson::error_code error;
+    if ((error = element.get(v))) { std::cerr << error << std::endl; abort(); }
     if (v) {
       s.true_count++;
     } else {
@@ -183,7 +183,7 @@ int main(int argc, char *argv[]) {
   for (uint32_t i = 0; i < iterations; i++) {
     unified.start();
     // The default template is simdjson::architecture::NATIVE.
-    bool isok = (parser.implementation->stage1((const uint8_t *)p.data(), p.size(), false) == simdjson::SUCCESS);
+    bool isok = (parser.implementation->stage1((const uint8_t *)p.data(), p.size(), simdjson::stage1_mode::regular) == simdjson::SUCCESS);
     unified.end(results);
 
     cy1 += results[0];

benchmark/event_counter.h

@@ -116,30 +116,30 @@ struct event_collector {
 
 #if defined(__linux__)
   LinuxEvents<PERF_TYPE_HARDWARE> linux_events;
-  event_collector() : linux_events(vector<int>{
+  event_collector(bool quiet = false) : linux_events(vector<int>{
     PERF_COUNT_HW_CPU_CYCLES,
     PERF_COUNT_HW_INSTRUCTIONS,
     PERF_COUNT_HW_BRANCH_MISSES,
     PERF_COUNT_HW_CACHE_REFERENCES,
     PERF_COUNT_HW_CACHE_MISSES
-  }) {}
+  }, quiet) {}
   bool has_events() {
     return linux_events.is_working();
   }
 #else
-  event_collector() {}
+  event_collector(simdjson_unused bool _quiet = false) {}
   bool has_events() {
     return false;
   }
 #endif
 
-  really_inline void start() {
+  simdjson_really_inline void start() {
 #if defined(__linux)
     linux_events.start();
 #endif
     start_clock = steady_clock::now();
   }
-  really_inline event_count& end() {
+  simdjson_really_inline event_count& end() {
     time_point<steady_clock> end_clock = steady_clock::now();
 #if defined(__linux)
     linux_events.end(count.event_counts);

benchmark/find_tweet/find_tweet.h

@@ -0,0 +1,40 @@
+
+#pragma once
+
+#include "json_benchmark/file_runner.h"
+
+namespace find_tweet {
+
+using namespace json_benchmark;
+
+template<typename I>
+struct runner : public file_runner<I> {
+  typename I::StringType result;
+
+  bool setup(benchmark::State &state) {
+    return this->load_json(state, TWITTER_JSON);
+  }
+
+  bool before_run(benchmark::State &state) {
+    if (!file_runner<I>::before_run(state)) { return false; }
+    result = "";
+    return true;
+  }
+
+  bool run(benchmark::State &) {
+    return this->implementation.run(this->json, 505874901689851904ULL, result);
+  }
+
+  template<typename R>
+  bool diff(benchmark::State &state, runner<R> &reference) {
+    return diff_results(state, result, reference.result, diff_flags::NONE);
+  }
+};
+
+struct simdjson_dom;
+
+template<typename I> simdjson_really_inline static void find_tweet(benchmark::State &state) {
+  run_json_benchmark<runner<I>, runner<simdjson_dom>>(state);
+}
+
+} // namespace find_tweet

benchmark/find_tweet/nlohmann_json.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+struct nlohmann_json {
+  using StringType=std::string;
+
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string &result) {
+    auto root = nlohmann::json::parse(json.data(), json.data() + json.size());
+    for (auto tweet : root["statuses"]) {
+      if (tweet["id"] == find_id) {
+        result = tweet["text"];
+        return true;
+      }
+    }
+
+    return false;
+  }
+};
+
+BENCHMARK_TEMPLATE(find_tweet, nlohmann_json)->UseManualTime();
+
+} // namespace find_tweet
+
+#endif // SIMDJSON_COMPETITION_NLOHMANN_JSON

benchmark/find_tweet/nlohmann_json_sax.h

@@ -0,0 +1,68 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+using json = nlohmann::json;
+
+struct nlohmann_json_sax {
+    using StringType=std::string;
+
+    struct Handler : json::json_sax_t
+    {
+        bool text_key = false;
+        bool id_key = false;
+        bool found_id = false;
+        uint64_t find_id;
+        std::string &result;
+
+        Handler(std::string &r,uint64_t id): result(r), find_id(id) { }
+
+        // We assume id is found before text
+        bool key(string_t& val) override {
+            if (found_id) { // If have found id, find text key
+                if (val.compare("text") == 0) { text_key = true; }
+            }
+            else if (val.compare("id") == 0) { id_key = true; } // Otherwise, find id key
+            return true;
+        }
+        bool number_unsigned(number_unsigned_t val) override {
+            if (id_key && (val == find_id)) {  // If id key, check if id value matches find_id
+                found_id = true;
+            }
+            return true;
+        }
+        bool string(string_t& val) override {
+            if (text_key) {
+                result = val;
+                return false;   // End parsing
+            }
+            return true;
+        }
+        // Irrelevant events
+        bool null() override { return true; }
+        bool boolean(bool val) override { return true; }
+        bool number_float(number_float_t val, const string_t& s) override { return true; }
+        bool number_integer(number_integer_t val) override { return true; }
+        bool start_object(std::size_t elements) override { return true; }
+        bool end_object() override { return true; }
+        bool start_array(std::size_t elements) override { return true; }
+        bool end_array() override { return true; }
+        bool binary(json::binary_t& val) override { return true; }
+        bool parse_error(std::size_t position, const std::string& last_token, const json::exception& ex) override { return false; }
+    }; // Handler
+
+    bool run(simdjson::padded_string &json, uint64_t find_id, std::string &result) {
+        Handler handler(result,find_id);
+        json::sax_parse(json.data(), &handler);
+
+        return true;
+    }
+}; // nlohmann_json_sax
+BENCHMARK_TEMPLATE(find_tweet, nlohmann_json_sax)->UseManualTime();
+} // namespace find_tweet
+
+#endif // SIMDJSON_COMPETITION_NLOHMANN_JSON

benchmark/find_tweet/rapidjson.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+using namespace rapidjson;
+
+struct rapidjson_base {
+  using StringType=std::string_view;
+
+  Document doc{};
+
+  bool run(Document &root, uint64_t find_id, std::string_view &result) {
+    if (root.HasParseError() || !root.IsObject()) { return false; }
+    auto statuses = root.FindMember("statuses");
+    if (statuses == root.MemberEnd() || !statuses->value.IsArray()) { return false; }
+    for (auto &tweet : statuses->value.GetArray()) {
+      if (!tweet.IsObject()) { return false; }
+      auto id = tweet.FindMember("id");
+      if (id == tweet.MemberEnd() || !id->value.IsUint64()) { return false; }
+      if (id->value.GetUint64() == find_id) {
+        auto text = tweet.FindMember("text");
+        if (text == tweet.MemberEnd() || !text->value.IsString()) { return false; }
+        result = { text->value.GetString(), text->value.GetStringLength() };
+        return true;
+      }
+    }
+
+    return false;
+  }
+};
+
+struct rapidjson : rapidjson_base {
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    return rapidjson_base::run(doc.Parse<kParseValidateEncodingFlag>(json.data()), find_id, result);
+  }
+};
+BENCHMARK_TEMPLATE(find_tweet, rapidjson)->UseManualTime();
+
+struct rapidjson_insitu : rapidjson_base {
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    return rapidjson_base::run(doc.ParseInsitu<kParseValidateEncodingFlag>(json.data()), find_id, result);
+  }
+};
+BENCHMARK_TEMPLATE(find_tweet, rapidjson_insitu)->UseManualTime();
+
+} // namespace find_tweet
+
+#endif // SIMDJSON_COMPETITION_RAPIDJSON

benchmark/find_tweet/rapidjson_sax.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+
+#include "find_tweet.h"
+#include <string.h>
+
+namespace find_tweet {
+
+using namespace rapidjson;
+
+struct rapidjson_sax {
+using StringType=std::string_view;
+
+struct Handler {
+        bool text_key = false;
+        bool id_key = false;
+        bool found_id = false;
+        uint64_t find_id;
+        std::string_view &result;
+
+        Handler(std::string_view &r,uint64_t id): result(r), find_id(id) { }
+
+        // We assume id is found before text
+        bool Key(const char* key, SizeType length, bool copy) {
+            if (found_id) { // If have found id, find text key
+                if ((length == 4) && (memcmp(key,"text",4) == 0)) { text_key = true; }
+            }
+            else if ((length == 2) && (memcmp(key,"id",2) == 0)) { id_key = true; } // Otherwise, find id key
+            return true;
+        }
+        bool Uint64(uint64_t i) {
+            if (id_key && (i == find_id)) {  // If id key, check if id value matches find_id
+                found_id = true;
+            }
+            return true;
+        }
+        bool String(const char* str, SizeType length, bool copy) {
+            if (text_key) {
+                result = {str,length};
+                return false;   // End parsing
+            }
+            return true;
+        }
+        // Irrelevant events
+        bool Null() { return true; }
+        bool Bool(bool b) { return true; }
+        bool Double(double d) { return true; }
+        bool Int(int i) { return true; }
+        bool Int64(int64_t i) { return true; }
+        bool Uint(unsigned i) { return true; }
+        bool RawNumber(const char* str, SizeType length, bool copy) { return true; }
+        bool StartObject() { return true; }
+        bool EndObject(SizeType memberCount) { return true; }
+        bool StartArray() { return true; }
+        bool EndArray(SizeType elementCount) { return true; }
+    }; // handler
+
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+        Reader reader;
+        Handler handler(result,find_id);
+        InsituStringStream ss(json.data());
+        reader.Parse<kParseInsituFlag | kParseValidateEncodingFlag | kParseFullPrecisionFlag>(ss,handler);
+        return true;
+    }
+}; // rapidjson_sax
+BENCHMARK_TEMPLATE(find_tweet, rapidjson_sax)->UseManualTime();
+} // namespace find_tweet
+
+#endif // SIMDJSON_COMPETITION_RAPIDJSON

benchmark/find_tweet/sajson.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_SAJSON
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+struct sajson {
+  using StringType=std::string_view;
+
+  size_t ast_buffer_size{0};
+  size_t *ast_buffer{nullptr};
+  simdjson_really_inline std::string_view get_string_view(const ::sajson::value &obj, std::string_view key) {
+    auto val = obj.get_value_of_key({key.data(), key.length()});
+    if (val.get_type() != ::sajson::TYPE_STRING) { throw "field is not a string"; }
+    return { val.as_cstring(), val.get_string_length() };
+  }
+  simdjson_really_inline uint64_t get_str_uint64(const ::sajson::value &obj, std::string_view key) {
+    // Since sajson only supports 53-bit numbers, and IDs in twitter.json can be > 53 bits, we read the corresponding id_str and parse that.
+    auto val = obj.get_value_of_key({key.data(), key.length()});
+    if (val.get_type() != ::sajson::TYPE_STRING) { throw "field not a string"; }
+    auto str = val.as_cstring();
+    char *endptr;
+    uint64_t result = strtoull(str, &endptr, 10);
+    if (endptr != &str[val.get_string_length()]) { throw "field is a string, but not an integer string"; }
+    return result;
+  }
+
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    if (!ast_buffer) {
+      ast_buffer_size = json.size();
+      ast_buffer = (size_t *)std::malloc(ast_buffer_size * sizeof(size_t));
+    }
+    auto doc = ::sajson::parse(
+      ::sajson::bounded_allocation(ast_buffer, ast_buffer_size),
+      ::sajson::mutable_string_view(json.size(), json.data())
+    );
+    if (!doc.is_valid()) { return false; }
+
+    auto root = doc.get_root();
+    if (root.get_type() != ::sajson::TYPE_OBJECT) { printf("a\n"); return false; }
+    auto statuses = root.get_value_of_key({"statuses", strlen("statuses")});
+    if (statuses.get_type() != ::sajson::TYPE_ARRAY) { return false; }
+
+    for (size_t i=0; i<statuses.get_length(); i++) {
+      auto tweet = statuses.get_array_element(i);
+      if (tweet.get_type() != ::sajson::TYPE_OBJECT) { printf("b\n"); return false; }
+      // TODO if there is a way to get the raw string, it might be faster to iota find_id and then
+      // compare it to each id_str, instead of parsing each int and comparing to find_id.
+      if (get_str_uint64(tweet, "id_str") == find_id) {
+        result = get_string_view(tweet, "text");
+        return true;
+      }
+    }
+
+    return false;
+  }
+};
+
+BENCHMARK_TEMPLATE(find_tweet, sajson)->UseManualTime();
+
+} // namespace find_tweet
+
+#endif // SIMDJSON_COMPETITION_SAJSON
+

benchmark/find_tweet/simdjson_dom.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+using namespace simdjson;
+
+struct simdjson_dom {
+  using StringType=std::string_view;
+
+  dom::parser parser{};
+
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    result = "";
+    auto doc = parser.parse(json);
+    for (auto tweet : doc["statuses"]) {
+      if (uint64_t(tweet["id"]) == find_id) {
+        result = tweet["text"];
+        return true;
+      }
+    }
+    return false;
+  }
+};
+
+BENCHMARK_TEMPLATE(find_tweet, simdjson_dom)->UseManualTime();
+
+} // namespace find_tweet
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/find_tweet/simdjson_ondemand.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#if SIMDJSON_EXCEPTIONS
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+using namespace simdjson;
+
+struct simdjson_ondemand {
+  using StringType=std::string_view;
+
+  ondemand::parser parser{};
+
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    // Walk the document, parsing as we go
+    auto doc = parser.iterate(json);
+    for (auto tweet : doc.find_field("statuses")) {
+      if (uint64_t(tweet.find_field("id")) == find_id) {
+        result = tweet.find_field("text");
+        return true;
+      }
+    }
+    return false;
+  }
+};
+
+BENCHMARK_TEMPLATE(find_tweet, simdjson_ondemand)->UseManualTime();
+
+} // namespace find_tweet
+
+#endif // SIMDJSON_EXCEPTIONS

benchmark/find_tweet/yyjson.h

@@ -0,0 +1,53 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_YYJSON
+
+#include "find_tweet.h"
+
+namespace find_tweet {
+
+struct yyjson_base {
+  using StringType=std::string_view;
+
+  bool run(yyjson_doc *doc, uint64_t find_id, std::string_view &result) {
+    if (!doc) { return false; }
+    yyjson_val *root = yyjson_doc_get_root(doc);
+    if (!yyjson_is_obj(root)) { return false; }
+    yyjson_val *statuses = yyjson_obj_get(root, "statuses");
+    if (!yyjson_is_arr(statuses)) { return false; }
+
+    // Walk the document, parsing the tweets as we go
+    size_t tweet_idx, tweets_max;
+    yyjson_val *tweet;
+    yyjson_arr_foreach(statuses, tweet_idx, tweets_max, tweet) {
+      if (!yyjson_is_obj(tweet)) { return false; }
+      auto id = yyjson_obj_get(tweet, "id");
+      if (!yyjson_is_uint(id)) { return false; }
+      if (yyjson_get_uint(id) == find_id) {
+        auto text = yyjson_obj_get(tweet, "text");
+        if (yyjson_is_str(id)) { return false; }
+        result = { yyjson_get_str(text), yyjson_get_len(text) };
+        return true;
+      }
+    }
+    return false;
+  }
+};
+
+struct yyjson : yyjson_base {
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    return yyjson_base::run(yyjson_read(json.data(), json.size(), 0), find_id, result);
+  }
+};
+BENCHMARK_TEMPLATE(find_tweet, yyjson)->UseManualTime();
+
+struct yyjson_insitu : yyjson_base {
+  bool run(simdjson::padded_string &json, uint64_t find_id, std::string_view &result) {
+    return yyjson_base::run(yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0), find_id, result);
+  }
+};
+BENCHMARK_TEMPLATE(find_tweet, yyjson_insitu)->UseManualTime();
+
+} // namespace find_tweet
+
+#endif // SIMDJSON_COMPETITION_YYJSON

benchmark/get_corpus_benchmark.cpp

@@ -5,11 +5,11 @@
 #include <iostream>
 
 // Gigabyte: https://en.wikipedia.org/wiki/Gigabyte
-never_inline
+simdjson_never_inline
 double bench(std::string filename, simdjson::padded_string& p) {
   std::chrono::time_point<std::chrono::steady_clock> start_clock =
       std::chrono::steady_clock::now();
-  simdjson::padded_string::load(filename).first.swap(p);
+  simdjson::padded_string::load(filename).value_unsafe().swap(p);
   std::chrono::time_point<std::chrono::steady_clock> end_clock =
       std::chrono::steady_clock::now();
   std::chrono::duration<double> elapsed = end_clock - start_clock;
@@ -29,7 +29,7 @@ int main(int argc, char *argv[]) {
               << std::endl;
   }
   simdjson::padded_string p;
-  bench(filename, p); 
+  bench(filename, p);
   double meanval = 0;
   double maxval = 0;
   double minval = 10000;

benchmark/json_benchmark/constants.h

@@ -0,0 +1,9 @@
+#pragma once
+
+namespace json_benchmark {
+
+static constexpr const char *TWITTER_JSON = SIMDJSON_BENCHMARK_DATA_DIR "twitter.json";
+static constexpr const char *NUMBERS_JSON = SIMDJSON_BENCHMARK_DATA_DIR "numbers.json";
+static constexpr const char *AMAZON_CELLPHONES_NDJSON = SIMDJSON_BENCHMARK_DATA_DIR "amazon_cellphones.ndjson";
+
+}

benchmark/json_benchmark/diff_results.h

@@ -0,0 +1,143 @@
+#pragma once
+
+#include <vector>
+#include <map>
+#include <sstream>
+#include <limits>
+
+namespace json_benchmark {
+
+enum class diff_flags {
+  NONE = 0,
+  IMPRECISE_FLOATS = 1
+};
+
+template<typename T, typename U>
+static bool diff_results(benchmark::State &state, const T &result, const U &reference, diff_flags flags);
+
+template<typename T, typename U>
+struct result_differ {
+  static bool diff(benchmark::State &state, const T &result, const U &reference, diff_flags flags) {
+    if (result != reference) {
+      std::stringstream str;
+      str << "result incorrect: " << result << " ... reference: " << reference;
+      state.SkipWithError(str.str().data());
+      return false;
+    }
+    return true;
+  }
+};
+
+template<typename T, typename U>
+struct result_differ<std::vector<T>, std::vector<U>> {
+  static bool diff(benchmark::State &state, const std::vector<T> &result, const std::vector<U> &reference, diff_flags flags) {
+    auto result_iter = result.begin();
+    auto reference_iter = reference.begin();
+    while (result_iter != result.end() && reference_iter != reference.end()) {
+      if (!diff_results(state, *result_iter, *reference_iter, flags)) { return false; }
+      result_iter++;
+      reference_iter++;
+    }
+    if (result_iter != result.end()) {
+      std::stringstream str;
+      str << "extra results (got " << result.size() << ", expected " << reference.size() << "): first extra element: " << *result_iter;
+      state.SkipWithError(str.str().data());
+      return false;
+    } else if (reference_iter != reference.end()) {
+      std::stringstream str;
+      str << "missing results (got " << result.size() << ", expected " << reference.size() << "): first missing element: " << *reference_iter;
+      state.SkipWithError(str.str().data());
+      return false;
+    }
+    return true;
+  }
+};
+
+template<typename T, typename U, typename StringType>
+struct result_differ<std::map<StringType,T>, std::map<StringType,U>> {
+  static bool diff(benchmark::State &state, const std::map<StringType,T> &result, const std::map<StringType,U> &reference, diff_flags flags) {
+    auto result_iter = result.begin();
+    auto reference_iter = reference.begin();
+    while (result_iter != result.end() && reference_iter != reference.end()) {
+      if (!diff_results(state, *result_iter, *reference_iter, flags)) { return false; }
+      result_iter++;
+      reference_iter++;
+    }
+    if (result_iter != result.end()) {
+      std::stringstream str;
+      str << "extra results (got " << result.size() << ", expected " << reference.size() << "): first extra element: " << *result_iter;
+      state.SkipWithError(str.str().data());
+      return false;
+    } else if (reference_iter != reference.end()) {
+      std::stringstream str;
+      str << "missing results (got " << result.size() << ", expected " << reference.size() << "): first missing element: " << *reference_iter;
+      state.SkipWithError(str.str().data());
+      return false;
+    }
+    return true;
+  }
+};
+
+template<typename T, typename U>
+struct result_differ<std::map<std::string_view,T>, std::vector<std::string_view,U>> {
+  static bool diff(benchmark::State &state, const std::map<std::string_view,T> &result, const std::map<std::string_view,U> &reference, diff_flags flags) {
+    auto result_iter = result.begin();
+    auto reference_iter = reference.begin();
+    while (result_iter != result.end() && reference_iter != reference.end()) {
+      if (!diff_results(state, *result_iter, *reference_iter, flags)) { return false; }
+      result_iter++;
+      reference_iter++;
+    }
+    if (result_iter != result.end()) {
+      std::stringstream str;
+      str << "extra results (got " << result.size() << ", expected " << reference.size() << "): first extra element: " << *result_iter;
+      state.SkipWithError(str.str().data());
+      return false;
+    } else if (reference_iter != reference.end()) {
+      std::stringstream str;
+      str << "missing results (got " << result.size() << ", expected " << reference.size() << "): first missing element: " << *reference_iter;
+      state.SkipWithError(str.str().data());
+      return false;
+    }
+    return true;
+  }
+};
+
+template<>
+struct result_differ<double, double> {
+  static bool diff(benchmark::State &state, const double &result, const double &reference, diff_flags flags) {
+    bool different;
+    if (int(flags) & int(diff_flags::IMPRECISE_FLOATS)) {
+      different = f64_ulp_dist(result, reference) > 1;
+    } else {
+      different = result != reference;
+    }
+    if (different) {
+      std::stringstream str;
+      // We print it out using full precision.
+      constexpr auto precision = std::numeric_limits<double>::max_digits10;
+      str << std::setprecision(precision);
+      str << "incorrect double result: " << std::endl;
+      str << "   result: " << std::left << std::setw(precision+2) << result    << " (hexfloat " << std::hexfloat << result    << ")" << std::defaultfloat << std::endl;
+      str << "reference: " << std::left << std::setw(precision+2) << reference << " (hexfloat " << std::hexfloat << reference << ")" << std::defaultfloat << std::endl;
+      state.SkipWithError(str.str().data());
+    }
+    return true;
+  }
+
+  static uint64_t f64_ulp_dist(double a, double b) {
+    uint64_t ua, ub;
+    std::memcpy(&ua, &a, sizeof(ua));
+    std::memcpy(&ub, &b, sizeof(ub));
+    if ((int64_t)(ub ^ ua) >= 0)
+      return (int64_t)(ua - ub) >= 0 ? (ua - ub) : (ub - ua);
+    return ua + ub + 0x80000000;
+  }
+};
+
+template<typename T, typename U>
+static bool diff_results(benchmark::State &state, const T &result, const U &reference, diff_flags flags) {
+  return result_differ<T, U>::diff(state, result, reference, flags);
+}
+
+} // namespace json_benchmark

benchmark/json_benchmark/file_runner.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include "json_benchmark/runner_base.h"
+#include "simdjson.h"
+
+namespace json_benchmark {
+
+template<typename I>
+struct file_runner : public runner_base<I> {
+  simdjson::padded_string original_json{};
+  simdjson::padded_string json{};
+
+  simdjson_warn_unused bool load_json(benchmark::State &state, const char *file) {
+    simdjson::error_code error;
+    if ((error = simdjson::padded_string::load(file).get(original_json))) {
+      std::stringstream err;
+      err << "error loading " << file << ": " << error;
+      state.SkipWithError(err.str().data());
+      return false;
+    }
+    json = simdjson::padded_string(original_json.data(), original_json.size());
+    return true;
+  }
+
+  simdjson_warn_unused bool before_run(benchmark::State &state) {
+    if (!runner_base<I>::after_run(state)) { return false; };
+    // Copy the original json in case we did *in situ* last time
+    std::memcpy(json.data(), original_json.data(), original_json.size());
+    return true;
+  }
+
+  /** Get the total number of bytes processed in each iteration. Used for metrics like bytes/second. */
+  size_t bytes_per_iteration() {
+    return json.size();
+  }
+
+  /** Get the total number of documents processed in each iteration. Used for metrics like documents/second. */
+  size_t documents_per_iteration() {
+    return 1;
+  }
+
+  /** Get the total number of items processed in each iteration. Used for metrics like items/second. */
+  size_t items_per_iteration() {
+    return 1;
+  }
+};
+
+} // namespace json_benchmark

benchmark/json_benchmark/point.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "diff_results.h"
+
+namespace json_benchmark {
+
+struct point {
+  double x;
+  double y;
+  double z;
+};
+
+template<>
+struct result_differ<point, point> {
+  static bool diff(benchmark::State &state, const point &result, const point &reference, diff_flags flags) {
+    return diff_results(state, result.x, reference.x, flags)
+        && diff_results(state, result.y, reference.y, flags)
+        && diff_results(state, result.z, reference.z, flags);
+  }
+};
+
+static simdjson_unused std::ostream &operator<<(std::ostream &o, const point &p) {
+  return o << p.x << "," << p.y << "," << p.z << std::endl;
+}
+
+} // namespace json_benchmark

benchmark/json_benchmark/run_json_benchmark.h

@@ -0,0 +1,107 @@
+#pragma once
+
+#include "simdjson.h"
+#include "event_counter.h"
+#include <iostream>
+
+namespace json_benchmark {
+
+void maybe_display_implementation() {
+  static bool displayed_implementation = false;
+  if(!displayed_implementation) {
+    displayed_implementation = true;
+    std::cout << "simdjson::dom implementation:      " << simdjson::get_active_implementation()->name() << std::endl;
+    std::cout << "simdjson::ondemand implementation (stage 1): " << simdjson::get_active_implementation()->name() << std::endl;
+    std::cout << "simdjson::ondemand implementation (stage 2): " << simdjson::builtin_implementation()->name() << std::endl;
+  }
+}
+
+template<typename B, typename R> static void run_json_benchmark(benchmark::State &state) {
+  maybe_display_implementation();
+
+  event_collector collector(true);
+  event_aggregate events;
+
+  // Warmup and equality check (make sure the data is right!)
+  B bench;
+  if (!bench.setup(state)) { return; }
+  if (!bench.before_run(state)) { state.SkipWithError("warmup document before_run failed"); return; }
+  if (!bench.run(state)) { state.SkipWithError("warmup document reading failed"); return; }
+  if (!bench.after_run(state)) { state.SkipWithError("warmup document after_run failed"); return; }
+  {
+    R reference;
+    if (!reference.setup(state)) { return; }
+    if (!reference.before_run(state)) { state.SkipWithError("reference before_run failed"); };
+    if (!reference.run(state)) { state.SkipWithError("reference document reading failed"); return; }
+    if (!reference.after_run(state)) { state.SkipWithError("reference before_run failed"); };
+    if (!bench.diff(state, reference)) { return; }
+  }
+
+  // Run the benchmark
+  for (simdjson_unused auto _ : state) {
+    if (!bench.before_run(state)) { state.SkipWithError("before_run failed"); };
+    collector.start();
+    if (!bench.run(state)) { state.SkipWithError("run failed"); return; }
+    auto event = collector.end();
+    events << event;
+    state.SetIterationTime(event.elapsed_sec());
+    if (!bench.after_run(state)) { state.SkipWithError("after_run failed"); return; };
+  }
+
+  state.SetBytesProcessed(bench.bytes_per_iteration() * state.iterations());
+  state.SetItemsProcessed(bench.items_per_iteration() * state.iterations());
+  state.counters["best_docs_per_sec"] = benchmark::Counter(double(bench.documents_per_iteration()) / events.best.elapsed_sec());
+  state.counters["best_bytes_per_sec"] = benchmark::Counter(double(bench.bytes_per_iteration()) / events.best.elapsed_sec());
+  state.counters["best_items_per_sec"] = benchmark::Counter(double(bench.items_per_iteration()) / events.best.elapsed_sec());
+  state.counters["docs_per_sec"] = benchmark::Counter(double(bench.documents_per_iteration()), benchmark::Counter::kIsIterationInvariantRate);
+
+  if (collector.has_events()) {
+    state.counters["instructions"] = events.instructions();
+    state.counters["cycles"]       = events.cycles();
+    state.counters["branch_miss"]  = events.branch_misses();
+    state.counters["cache_miss"]   = events.cache_misses();
+    state.counters["cache_ref"]    = events.cache_references();
+
+    state.counters["instructions_per_byte"]  = events.instructions() / double(bench.bytes_per_iteration());
+    state.counters["instructions_per_cycle"] = events.instructions() / events.cycles();
+    state.counters["cycles_per_byte"]        = events.cycles()       / double(bench.bytes_per_iteration());
+    state.counters["frequency"]              = benchmark::Counter(events.cycles(), benchmark::Counter::kIsIterationInvariantRate);
+
+    state.counters["best_instructions"] = events.best.instructions();
+    state.counters["best_cycles"]       = events.best.cycles();
+    state.counters["best_branch_miss"]  = events.best.branch_misses();
+    state.counters["best_cache_miss"]   = events.best.cache_misses();
+    state.counters["best_cache_ref"]    = events.best.cache_references();
+
+    state.counters["best_instructions_per_byte"]  = events.best.instructions() / double(bench.bytes_per_iteration());
+    state.counters["best_instructions_per_cycle"] = events.best.instructions() / events.best.cycles();
+    state.counters["best_cycles_per_byte"]        = events.best.cycles()       / double(bench.bytes_per_iteration());
+    state.counters["best_frequency"]              = events.best.cycles()       / events.best.elapsed_sec();
+  }
+  state.counters["bytes"] = benchmark::Counter(double(bench.bytes_per_iteration()));
+  state.counters["items"] = benchmark::Counter(double(bench.items_per_iteration()));
+
+  // Build the label
+  using namespace std;
+  stringstream label;
+  label << fixed << setprecision(2);
+  label << "[BEST:";
+  label << " throughput="     << setw(6)  << (double(bench.bytes_per_iteration()) / 1000000000.0     / events.best.elapsed_sec()) << " GB/s";
+  label << " doc_throughput=" << setw(6)  << uint64_t(bench.documents_per_iteration()                / events.best.elapsed_sec()) << " docs/s";
+
+  if (collector.has_events()) {
+    label << " instructions=" << setw(12) << uint64_t(events.best.instructions())     << setw(0);
+    label << " cycles="       << setw(12) << uint64_t(events.best.cycles())           << setw(0);
+    label << " branch_miss="  << setw(8)  << uint64_t(events.best.branch_misses())    << setw(0);
+    label << " cache_miss="   << setw(8)  << uint64_t(events.best.cache_misses())     << setw(0);
+    label << " cache_ref="    << setw(10) << uint64_t(events.best.cache_references()) << setw(0);
+  }
+
+  label << " items=" << setw(10) << bench.items_per_iteration() << setw(0);
+  label << " avg_time=" << setw(10) << uint64_t(events.elapsed_ns()) << setw(0) << " ns";
+  label << "]";
+
+  state.SetLabel(label.str());
+}
+
+} // namespace json_benchmark

benchmark/json_benchmark/runner_base.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include "constants.h"
+#include "run_json_benchmark.h"
+#include "diff_results.h"
+
+namespace json_benchmark {
+
+//
+// Extend this to create a new type of test (e.g. partial_tweets).
+//
+template<typename I>
+struct runner_base {
+  /** Run once, before all iterations. */
+  simdjson_warn_unused bool setup(benchmark::State &) { return true; }
+
+  /** Run on each iteration. This is what gets benchmarked. */
+  simdjson_warn_unused bool run(benchmark::State &state) {
+    return implementation.run(state);
+  }
+
+  /** Called before each iteration, to clear / set up state. */
+  simdjson_warn_unused bool before_run(benchmark::State &state) { return true; }
+
+  /** Called after each iteration, to tear down / massage state. */
+  simdjson_warn_unused bool after_run(benchmark::State &) { return true; }
+
+  /** Get the total number of bytes processed in each iteration. Used for metrics like bytes/second. */
+  size_t bytes_per_iteration();
+
+  /** Get the total number of documents processed in each iteration. Used for metrics like documents/second. */
+  size_t documents_per_iteration();
+
+  /** Get the total number of items processed in each iteration. Used for metrics like items/second. */
+  size_t items_per_iteration();
+
+  I implementation{};
+};
+
+}

benchmark/json_benchmark/string_runner.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include "runner_base.h"
+#include "simdjson.h"
+
+namespace json_benchmark {
+
+template<typename I>
+struct string_runner : public runner_base<I> {
+  const simdjson::padded_string &original_json;
+  simdjson::padded_string json;
+  string_runner(const simdjson::padded_string &_json) : original_json{_json}, json(original_json.data(), original_json.size()) {}
+
+  simdjson_warn_unused bool before_run(benchmark::State &state) {
+    if (!runner_base<I>::after_run(state)) { return false; };
+    // Copy the original json in case we did *in situ*
+    std::memcpy(json.data(), original_json.data(), original_json.size());
+    return true;
+  }
+
+  /** Get the total number of bytes processed in each iteration. Used for metrics like bytes/second. */
+  size_t bytes_per_iteration() {
+    return json.size();
+  }
+
+  /** Get the total number of documents processed in each iteration. Used for metrics like documents/second. */
+  size_t documents_per_iteration() {
+    return 1;
+  }
+
+  /** Get the total number of items processed in each iteration. Used for metrics like items/second. */
+  size_t items_per_iteration() {
+    return 1;
+  }
+};
+
+} // namespace json_benchmark

benchmark/kostya/kostya.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include "json_benchmark/string_runner.h"
+#include "json_benchmark/point.h"
+#include <vector>
+#include <random>
+
+namespace kostya {
+
+using namespace json_benchmark;
+
+static const simdjson::padded_string &get_built_json_array();
+
+template<typename I>
+struct runner : public string_runner<I> {
+  std::vector<point> result;
+
+  runner() : string_runner<I>(get_built_json_array()) {}
+
+  bool before_run(benchmark::State &state) {
+    if (!string_runner<I>::before_run(state)) { return false; }
+    result.clear();
+    return true;
+  }
+
+  bool run(benchmark::State &) {
+    return this->implementation.run(this->json, result);
+  }
+
+  template<typename R>
+  bool diff(benchmark::State &state, runner<R> &reference) {
+    return diff_results(state, result, reference.result, I::DiffFlags);
+  }
+
+  size_t items_per_iteration() {
+    return result.size();
+  }
+};
+
+static void append_coordinate(std::default_random_engine &e, std::uniform_real_distribution<> &dis, std::stringstream &myss) {
+  using std::endl;
+  myss << R"(        {)" << endl;
+  myss << R"(            "x": )" << dis(e) << "," << endl;
+  myss << R"(            "y": )" << dis(e) << "," << endl;
+  myss << R"(            "z": )" << dis(e) << "," << endl;
+  myss << R"(            "name": ")" << char('a'+dis(e)*25) << char('a'+dis(e)*25) << char('a'+dis(e)*25) << char('a'+dis(e)*25) << char('a'+dis(e)*25) << char('a'+dis(e)*25) << " " << int(dis(e)*10000) << "\"," << endl;
+  myss << R"(            "opts": {)" << endl;
+  myss << R"(                "1": [)" << endl;
+  myss << R"(                    1,)" << endl;
+  myss << R"(                    true)" << endl;
+  myss << R"(                ])" << endl;
+  myss << R"(            })" << endl;
+  myss << R"(        })";
+}
+
+static std::string build_json_array(size_t N) {
+  using namespace std;
+  default_random_engine e;
+  uniform_real_distribution<> dis(0, 1);
+  stringstream myss;
+  myss << R"({)" << endl;
+  myss << R"(    "coordinates": [)" << endl;
+  for (size_t i=1; i<N; i++) {
+    append_coordinate(e, dis, myss); myss << "," << endl;
+  }
+  append_coordinate(e, dis, myss); myss << endl;
+  myss << R"(    ],)" << endl;
+  myss << R"(    "info": "some info")" << endl;
+  myss << R"(})" << endl;
+  string answer = myss.str();
+  cout << "Creating a source file spanning " << (answer.size() + 512) / 1024 << " KB " << endl;
+  return answer;
+}
+
+static const simdjson::padded_string &get_built_json_array() {
+  static simdjson::padded_string json = build_json_array(524288);
+  return json;
+}
+
+struct simdjson_dom;
+
+template<typename I> simdjson_really_inline static void kostya(benchmark::State &state) {
+  run_json_benchmark<runner<I>, runner<simdjson_dom>>(state);
+}
+
+} // namespace kostya

benchmark/kostya/nlohmann_json.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+
+#include "kostya.h"
+
+namespace kostya {
+
+struct nlohmann_json {
+  static constexpr diff_flags DiffFlags = diff_flags::NONE;
+
+  bool run(simdjson::padded_string &json, std::vector<point> &result) {
+    auto root = nlohmann::json::parse(json.data(), json.data() + json.size());
+    for (auto point : root["coordinates"]) {
+      result.emplace_back(json_benchmark::point{point["x"], point["y"], point["z"]});
+    }
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(kostya, nlohmann_json)->UseManualTime();
+
+} // namespace kostya
+
+#endif // SIMDJSON_COMPETITION_NLOHMANN_JSON

benchmark/kostya/nlohmann_json_sax.h

@@ -0,0 +1,74 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_NLOHMANN_JSON
+
+#include "kostya.h"
+
+namespace kostya {
+
+using json = nlohmann::json;
+
+struct nlohmann_json_sax {
+    static constexpr diff_flags DiffFlags = diff_flags::NONE;
+
+    struct Handler : json::json_sax_t
+    {
+        size_t k{0};
+        double buffer[3];
+        std::vector<point>& result;
+
+        Handler(std::vector<point>& r) : result(r) { }
+
+        bool key(string_t& val) override {
+            switch(val[0]) {
+                case 'x':
+                    k = 0;
+                    break;
+                case 'y':
+                    k = 1;
+                    break;
+                case 'z':
+                    k = 2;
+                    break;
+            }
+            return true;
+        }
+        bool number_float(number_float_t val, const string_t& s) override {
+            buffer[k] = val;
+            if (k == 2) {
+                result.emplace_back(json_benchmark::point{buffer[0],buffer[1],buffer[2]});
+                k = 0;
+            }
+            return true;
+        }
+        bool number_unsigned(number_unsigned_t val) override {  // Need this event because coordinate value can be equal to 1
+            buffer[k] = val;
+            if (k == 2) {
+                result.emplace_back(json_benchmark::point{buffer[0],buffer[1],buffer[2]});
+                k = 0;
+            }
+            return true;
+        }
+        // Irrelevant events
+        bool null() override { return true; }
+        bool boolean(bool val) override { return true; }
+        bool number_integer(number_integer_t val) override { return true; }
+        bool string(string_t& val) override { return true; }
+        bool start_object(std::size_t elements) override { return true; }
+        bool end_object() override { return true; }
+        bool start_array(std::size_t elements) override { return true; }
+        bool end_array() override { return true; }
+        bool binary(json::binary_t& val) override { return true; }
+        bool parse_error(std::size_t position, const std::string& last_token, const json::exception& ex) override { return false; }
+    }; // Handler
+
+    bool run(simdjson::padded_string &json, std::vector<point> &result) {
+        Handler handler(result);
+        json::sax_parse(json.data(), &handler);
+        return true;
+    }
+}; // nlohmann_json_sax
+BENCHMARK_TEMPLATE(kostya, nlohmann_json_sax)->UseManualTime();
+} // namespace kostya
+
+#endif // SIMDJSON_COMPETITION_NLOHMANN_JSON

benchmark/kostya/rapidjson.h

@@ -0,0 +1,61 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+
+#include "kostya.h"
+
+namespace kostya {
+
+using namespace rapidjson;
+
+struct rapidjson_base {
+  static constexpr diff_flags DiffFlags = diff_flags::NONE;
+
+  Document doc;
+
+  simdjson_really_inline double get_double(Value &object, std::string_view key) {
+    auto field = object.FindMember(key.data());
+    if (field == object.MemberEnd()) { throw "Missing double field"; }
+    if (!field->value.IsNumber()) { throw "Field is not double"; }
+    return field->value.GetDouble();
+  }
+
+  bool run(Document &root, std::vector<point> &result) {
+    if (root.HasParseError()) { return false; }
+    if (!root.IsObject()) { return false; }
+    auto coords = root.FindMember("coordinates");
+    if (coords == root.MemberEnd()) { return false; }
+    if (!coords->value.IsArray()) { return false; }
+    for (auto &coord : coords->value.GetArray()) {
+      if (!coord.IsObject()) { return false; }
+      result.emplace_back(json_benchmark::point{get_double(coord, "x"), get_double(coord, "y"), get_double(coord, "z")});
+    }
+
+    return true;
+  }
+};
+
+struct rapidjson : rapidjson_base {
+  bool run(simdjson::padded_string &json, std::vector<point> &result) {
+    return rapidjson_base::run(doc.Parse<kParseValidateEncodingFlag>(json.data()), result);
+  }
+};
+BENCHMARK_TEMPLATE(kostya, rapidjson)->UseManualTime();
+
+struct rapidjson_lossless : rapidjson_base {
+  bool run(simdjson::padded_string &json, std::vector<point> &result) {
+    return rapidjson_base::run(doc.Parse<kParseValidateEncodingFlag | kParseFullPrecisionFlag>(json.data()), result);
+  }
+};
+BENCHMARK_TEMPLATE(kostya, rapidjson_lossless)->UseManualTime();
+
+struct rapidjson_insitu : rapidjson_base {
+  bool run(simdjson::padded_string &json, std::vector<point> &result) {
+    return rapidjson_base::run(doc.ParseInsitu<kParseValidateEncodingFlag>(json.data()), result);
+  }
+};
+BENCHMARK_TEMPLATE(kostya, rapidjson_insitu)->UseManualTime();
+
+} // namespace kostya
+
+#endif // SIMDJSON_COMPETITION_RAPIDJSON

benchmark/kostya/rapidjson_sax.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_RAPIDJSON
+
+#include "kostya.h"
+
+namespace kostya {
+
+using namespace rapidjson;
+
+struct rapidjson_sax {
+    static constexpr diff_flags DiffFlags = diff_flags::NONE;
+
+    struct Handler {
+        size_t k{0};
+        double buffer[3];
+        std::vector<point>& result;
+
+        Handler(std::vector<point> &r) : result(r) { }
+
+        bool Key(const char* key, SizeType length, bool copy) {
+            switch(key[0]) {
+            case 'x':
+                k = 0;
+                break;
+            case 'y':
+                k = 1;
+                break;
+            case 'z':
+                k = 2;
+                break;
+            }
+            return true;
+        }
+        bool Double(double d) {
+            buffer[k] = d;
+            if (k == 2) {
+                result.emplace_back(json_benchmark::point{buffer[0],buffer[1],buffer[2]});
+                k = 0;
+            }
+            return true;
+        }
+        bool Uint(unsigned i) {  return Double(i); }   // Need this event because coordinate value can be equal to 1
+        // Irrelevant events
+        bool Null() { return true; }
+        bool Bool(bool b) { return true; }
+        bool Int(int i) { return true; }
+        bool Int64(int64_t i) { return true; }
+        bool Uint64(uint64_t i) { return true; }
+        bool RawNumber(const char* str, SizeType length, bool copy) { return true; }
+        bool String(const char* str, SizeType length, bool copy) { return true; }
+        bool StartObject() { return true; }
+        bool EndObject(SizeType memberCount) { return true; }
+        bool StartArray() { return true; }
+        bool EndArray(SizeType elementCount) { return true; }
+    }; // handler
+
+    bool run(simdjson::padded_string &json, std::vector<point> &result) {
+        Reader reader;
+        Handler handler(result);
+        InsituStringStream ss(json.data());
+        reader.Parse<kParseInsituFlag | kParseValidateEncodingFlag | kParseFullPrecisionFlag>(ss,handler);
+        return true;
+    }
+
+}; // rapid_jason_sax
+BENCHMARK_TEMPLATE(kostya, rapidjson_sax)->UseManualTime();
+} // namespace kostya
+
+#endif // SIMDJSON_COMPETITION_RAPIDJSON

benchmark/kostya/sajson.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#ifdef SIMDJSON_COMPETITION_SAJSON
+
+#include "kostya.h"
+
+namespace kostya {
+
+struct sajson {
+  static constexpr diff_flags DiffFlags = diff_flags::IMPRECISE_FLOATS;
+
+  size_t ast_buffer_size{0};
+  size_t *ast_buffer{nullptr};
+
+  simdjson_really_inline double get_double(const ::sajson::value &obj, std::string_view key) {
+    using namespace sajson;
+
+    auto val = obj.get_value_of_key({key.data(), key.length()});
+    switch (val.get_type()) {
+      case TYPE_INTEGER:
+      case TYPE_DOUBLE:
+        return val.get_number_value();
+      default:
+        throw "field not double";
+    }
+  }
+
+  bool run(simdjson::padded_string &json, std::vector<point> &result) {
+    using namespace sajson;
+
+    if (!ast_buffer) {
+      ast_buffer_size = json.size();
+      ast_buffer = (size_t *)std::malloc(ast_buffer_size * sizeof(size_t));
+    }
+    auto doc = parse(
+      bounded_allocation(ast_buffer, ast_buffer_size),
+      mutable_string_view(json.size(), json.data())
+    );
+    if (!doc.is_valid()) { return false; }
+
+    auto root = doc.get_root();
+    if (root.get_type() != TYPE_OBJECT) { return false; }
+    auto points = root.get_value_of_key({"coordinates", strlen("coordinates")});
+    if (points.get_type() != TYPE_ARRAY) { return false; }
+
+    for (size_t i=0; i<points.get_length(); i++) {
+      auto point = points.get_array_element(i);
+      if (point.get_type() != TYPE_OBJECT) { return false; }
+      result.emplace_back(json_benchmark::point{
+        get_double(point, "x"),
+        get_double(point, "y"),
+        get_double(point, "z")
+      });
+    }
+
+    return true;
+  }
+};
+
+BENCHMARK_TEMPLATE(kostya, sajson)->UseManualTime();
+
+} // namespace kostya
+
+#endif // SIMDJSON_COMPETITION_SAJSON
+