This is a release candidate for issue 1831. (#1832 )

Patch for GCC 8.
Patch release.
2026-06-08 17:27:07 +00:00 · 2022-06-02 09:19:30 -04:00 · 2022-05-26 16:25:57 -04:00 · 2022-05-26 16:15:49 -04:00 · 2022-05-25 17:25:01 -04:00 · 2022-05-25 11:43:06 -04:00
204 changed files with 18426 additions and 4221 deletions
@@ -208,14 +208,6 @@ jobs:
    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 ]
-  nocheckeof-clang10:
-    description: Validate that when __SIMDJSON_CHECK_EOF=0, everything still succeeds
-    environment:
-      CXXFLAGS: -D__SIMDJSON_CHECK_EOF=0
-      CMAKE_BUILD_FLAGS: --target ondemand_tests
-      CTEST_FLAGS: --output-on-failure -R ondemand_
-    executor: clang10
-    steps: [ cmake_test ]
  # dynamic
  dynamic-gcc10:
    description: Build and run tests on GCC 10 and AVX 2 with a cmake dynamic build
@@ -292,7 +284,7 @@ workflows:
      - libcpp-clang10

      # full single-implementation tests
-      # - sanitize-gcc10 # gcc10 + sanitize uses a lot of memory?
+      - sanitize-gcc10
      - sanitize-clang10
      - threadsanitize-gcc10
      - threadsanitize-clang10
@@ -311,7 +303,7 @@ workflows:


      # sanitized single-implementation tests
-      # - sanitize-haswell-gcc10 # gcc10 + sanitize uses a lot of memory?
+      - sanitize-haswell-gcc10
      - sanitize-haswell-clang10

      # testing "just the library"
@@ -19,8 +19,8 @@ task:
  build_script:
    - mkdir build
    - cd build
-    - cmake -DSIMDJSON_BASH=OFF   -DSIMDJSON_DEVELOPER_MODE=ON  -DSIMDJSON_GIT=OFF ..
-    - cmake --build .
+    - cmake -DSIMDJSON_BASH=OFF  -DSIMDJSON_GIT=OFF ..
+    - make
  test_script:
    - cd build
    - ctest --output-on-failure -LE explicitonly
@@ -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: -DBUILD_SHARED_LIBS=OFF   -DSIMDJSON_DEVELOPER_MODE=ON
-    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
-  commands:
-    - scripts/addcmakeppa.sh "$(env -i sh -c '. /etc/os-release; echo $VERSION_CODENAME')"
-    - apt-get install -y g++ cmake gcc git
-    - mkdir build
-    - cd build
-    - cmake $CMAKE_FLAGS ..
-    - cmake --build . $BUILD_FLAGS
-    - ctest $CTEST_FLAGS
---
-kind: pipeline
-name: i386-clang # we do not support 32-bit systems, but we run tests
-platform: { os: linux, arch: amd64 }
-steps:
- name: Build and Test
-  image: i386/ubuntu
-  environment:
-    CC: clang-6.0
-    CXX: clang++-6.0
-    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF  -DSIMDJSON_DEVELOPER_MODE=ON
-    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
-  commands:
-    - scripts/addcmakeppa.sh "$(env -i sh -c '. /etc/os-release; echo $VERSION_CODENAME')"
-    - apt-get install -y clang++-6.0 cmake git
-    - mkdir build
-    - cd build
-    - cmake $CMAKE_FLAGS ..
-    - cmake --build . $BUILD_FLAGS
-    - ctest $CTEST_FLAGS
---
-kind: pipeline
 name: gcc9
 platform: { os: linux, arch: amd64 }
 steps:
@@ -50,7 +8,7 @@ steps:
    CC: gcc
    CXX: g++
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=haswell;westmere;fallback
+    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
@@ -61,6 +19,7 @@ steps:
    - 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
@@ -77,7 +36,7 @@ steps:
    CC: clang-6.0
    CXX: clang++-6.0
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=haswell;westmere;fallback
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=icelake;haswell;westmere;fallback
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
  commands:
    - mkdir build
@@ -85,6 +44,7 @@ steps:
    - 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
@@ -100,7 +60,7 @@ steps:
    CC: gcc
    CXX: g++
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON
+    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
@@ -122,7 +82,7 @@ steps:
  environment:
    CC: clang-9
    CXX: clang++-9
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
    BUILD_FLAGS: -- -j
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
  commands:
@@ -142,7 +102,7 @@ steps:
    CC: gcc
    CXX: g++
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON  -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=haswell;westmere;fallback
+    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
@@ -153,6 +113,7 @@ steps:
    - 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
@@ -168,7 +129,7 @@ steps:
  environment:
    CC: clang-9
    CXX: clang++-9
-    CMAKE_FLAGS:    -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_NO_FORCE_INLINING=ON -DSIMDJSON_SANITIZE=ON -DSIMDJSON_IMPLEMENTATION=haswell;westmere;fallback
+    CMAKE_FLAGS: -DSIMDJSON_SANITIZE=ON -DSIMDJSON_IMPLEMENTATION=icelake;haswell;westmere;fallback
    BUILD_FLAGS: -- -j
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
  commands:
@@ -177,6 +138,7 @@ steps:
    - 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
@@ -192,7 +154,7 @@ steps:
  environment:
    CC: clang-11
    CXX: clang++-11
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -GNinja
+    CMAKE_FLAGS: -GNinja
    BUILD_FLAGS:
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
    CXXFLAGS: -std=c++20 -stdlib=libc++
@@ -213,7 +175,7 @@ steps:
    CC: gcc
    CXX: g++
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=arm64;fallback
+    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
@@ -237,7 +199,7 @@ steps:
  environment:
    CC: clang-6.0
    CXX: clang++-6.0
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
    BUILD_FLAGS: -- -j
    CTEST_FLAGS: -j4 --output-on-failure  -LE explicitonly
  commands:
@@ -260,7 +222,7 @@ steps:
    CC: gcc
    CXX: g++
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON
+    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
@@ -281,7 +243,7 @@ steps:
  environment:
    CC: clang-6.0
    CXX: clang++-6.0
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=ON
    BUILD_FLAGS: -- -j
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
  commands:
@@ -302,7 +264,7 @@ steps:
  image: gcc:8
  environment:
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=arm64;fallback
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_IMPLEMENTATION=arm64;fallback
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
    CC: gcc
    CXX: g++
@@ -329,7 +291,7 @@ steps:
  environment:
    CC: clang-6.0
    CXX: clang++-6.0
-    CMAKE_FLAGS:    -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_NO_FORCE_INLINING=ON -DSIMDJSON_SANITIZE=ON -DSIMDJSON_IMPLEMENTATION=arm64;fallback
+    CMAKE_FLAGS: -DSIMDJSON_SANITIZE=ON -DSIMDJSON_IMPLEMENTATION=arm64;fallback
    BUILD_FLAGS: -- -j
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
  commands:
@@ -356,7 +318,7 @@ steps:
    CC: clang-9
    CXX: clang++-9
    BUILD_FLAGS: -- -j 4
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -GNinja -DBUILD_SHARED_LIBS=OFF
+    CMAKE_FLAGS: -GNinja -DBUILD_SHARED_LIBS=OFF
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
    CXXFLAGS: -stdlib=libc++
  commands:
@@ -377,7 +339,7 @@ steps:
    CC: clang-9
    CXX: clang++-9
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
    CXXFLAGS: -stdlib=libc++
  commands:
@@ -398,7 +360,7 @@ steps:
    CC: clang-7
    CXX: clang++-7
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF
+    CMAKE_FLAGS: -DBUILD_SHARED_LIBS=OFF
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
    CXXFLAGS: -stdlib=libc++
  commands:
@@ -418,7 +380,7 @@ steps:
    CC: gcc
    CXX: g++
    BUILD_FLAGS: -- -j
-    CMAKE_FLAGS:   -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_EXCEPTIONS=OFF
+    CMAKE_FLAGS: -DSIMDJSON_EXCEPTIONS=OFF
    CTEST_FLAGS: -j4 --output-on-failure -LE explicitonly
  commands:
    - echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
@@ -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
@@ -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 .
@@ -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 .
@@ -1,63 +0,0 @@
-name: MinGW32-CI
-
-on: [push, pull_request]
-
-
-# Important: scoop will either install 32-bit GCC or 64-bit GCC, not both.
-
-# It is important to build static libraries because cmake is not smart enough under Windows/mingw to take care of the path. So
-# with a dynamic library, you could get failures due to the fact that the EXE can't find its DLL.
-
-jobs:
-  ci:
-    if: >-
-      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
-      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
-    name: windows-gcc
-    runs-on: windows-2016
-
-    env:
-      CMAKE_GENERATOR: Ninja # This is critical, try ' cmake  -GNinja-DBUILD_SHARED_LIBS=OFF .. ' if using the command line
-      CC: gcc
-      CXX: g++
-
-    steps: # To reproduce what is below, start a powershell with administrative rights, using scoop *is* a good idea
-      - uses: actions/checkout@v2
-
-      - uses: actions/cache@v2 # we cache the scoop setup with 32-bit GCC
-        id: cache
-        with:
-          path: |
-            C:\ProgramData\scoop
-          key: scoop32 # static key: should be good forever
-
-      - uses: actions/cache@v2
-        with:
-          path: dependencies/.cache
-          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
-
-      - name: Setup Windows # This should almost never run if the cache works.
-        if: steps.cache.outputs.cache-hit != 'true'
-        shell: powershell
-        run: |
-          Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
-          scoop install sudo --global
-          sudo scoop install git --global
-          sudo scoop install ninja --global
-          sudo scoop install cmake --global
-          sudo scoop install gcc --arch 32bit --global
-          $env:path
-          Write-Host 'Everything has been installed, you are good!'
-      - name: Build and Test 32-bit x86
-        shell: powershell
-        run: |
-          $ENV:PATH="C:\ProgramData\scoop\shims;C:\ProgramData\scoop\apps\gcc\current\bin;C:\ProgramData\scoop\apps\ninja\current;$ENV:PATH"
-          g++ --version
-          cmake --version
-          ninja --version
-          git --version
-          mkdir build32
-          cd build32
-          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_ENABLE_THREADS=OFF ..
-          cmake --build . --target acceptance_tests --verbose
-          ctest -L acceptance --output-on-failure
@@ -1,69 +0,0 @@
-name: MinGW64-CI
-
-on: [push, pull_request]
-
-
-# Important: scoop will either install 32-bit GCC or 64-bit GCC, not both.
-
-# It is important to build static libraries because cmake is not smart enough under Windows/mingw to take care of the path. So
-# with a dynamic library, you could get failures due to the fact that the EXE can't find its DLL.
-
-jobs:
-  ci:
-    if: >-
-      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
-      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
-    name: windows-gcc
-    runs-on: windows-2016
-
-    env:
-      CMAKE_GENERATOR: Ninja # This is critical, try ' cmake  -GNinja-DBUILD_SHARED_LIBS=OFF .. ' if using the command line
-      CC: gcc
-      CXX: g++
-
-    steps: # To reproduce what is below, start a powershell with administrative rights, using scoop *is* a good idea
-      - uses: actions/checkout@v2
-
-      - uses: actions/cache@v2 # we cache the scoop setup with 64-bit GCC
-        id: cache
-        with:
-          path: |
-            C:\ProgramData\scoop
-          key: scoop64 # static key: should be good forever
-
-      - uses: actions/cache@v2
-        with:
-          path: dependencies/.cache
-          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
-
-      - name: Setup Windows # This should almost never run if the cache works.
-        if: steps.cache.outputs.cache-hit != 'true'
-        shell: powershell
-        run: |
-          Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
-          scoop install sudo --global
-          sudo scoop install git --global
-          sudo scoop install ninja --global
-          sudo scoop install cmake --global
-          sudo scoop install gcc --arch 64bit --global
-          $env:path
-          Write-Host 'Everything has been installed, you are good!'
-      - name: Build and Test 64-bit x64
-        shell: powershell
-        run: |
-          $ENV:PATH="C:\ProgramData\scoop\shims;C:\ProgramData\scoop\apps\gcc\current\bin;C:\ProgramData\scoop\apps\ninja\current;$ENV:PATH"
-          g++ --version
-          cmake --version
-          ninja --version
-          git --version
-          mkdir build64
-          cd build64
-          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_ENABLE_THREADS=OFF ..
-          cmake --build . --target acceptance_tests --verbose
-          ctest -L acceptance --output-on-failure
-          cd ..
-          mkdir build64debug
-          cd build64debug
-          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_ENABLE_THREADS=OFF ..
-          cmake --build . --target acceptance_tests --verbose
-          ctest -L acceptance --output-on-failure
@@ -17,15 +17,9 @@ jobs:
          - 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: "MINGW32"
-            install: mingw-w64-i686-libxml2 mingw-w64-i686-cmake mingw-w64-i686-ninja mingw-w64-i686-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
-          - msystem: "MINGW32"
-            install: mingw-w64-i686-libxml2 mingw-w64-i686-cmake mingw-w64-i686-ninja mingw-w64-i686-clang
-            type: Debug
    env:
      CMAKE_GENERATOR: Ninja

@@ -44,6 +38,6 @@ jobs:
        run: |
          mkdir build
          cd build
-          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=${{ matrix.type }} -DSIMDJSON_BUILD_STATIC=ON -DSIMDJSON_DO_NOT_USE_THREADS_NO_MATTER_WHAT=ON ..
+          cmake -DSIMDJSON_DEVELOPER_MODE=ON -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=${{ 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
@@ -19,15 +19,9 @@ jobs:
          - msystem: "MINGW64"
            install: mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-gcc
            type: Release
-          - msystem: "MINGW32"
-            install: mingw-w64-i686-cmake mingw-w64-i686-ninja mingw-w64-i686-gcc
-            type: Release
          - msystem: "MINGW64"
            install: mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-gcc
            type: Debug
-          - msystem: "MINGW32"
-            install: mingw-w64-i686-cmake mingw-w64-i686-ninja mingw-w64-i686-gcc
-            type: Debug
    env:
      CMAKE_GENERATOR: Ninja

@@ -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
@@ -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 .
@@ -1,31 +0,0 @@
-name: VS16-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-vs16
-    runs-on: windows-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: actions/cache@v2
-      with:
-        path: dependencies/.cache
-        key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
-    - name: 'Run CMake with VS16 Clang'
-      uses: lukka/run-cmake@v3
-      with:
-        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
-        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
-        buildDirectory: "${{ github.workspace }}/../../_temp/windows"
-        cmakeBuildType: Release
-        buildWithCMake: true
-        cmakeAppendedArgs:  -T ClangCL -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF
-        buildWithCMakeArgs: --config Release
-
-    - name: 'Run CTest'
-      run: ctest -C Release -LE explicitonly  --output-on-failure
-      working-directory: "${{ github.workspace }}/../../_temp/windows"
@@ -1,45 +0,0 @@
-name: VS16-Ninja-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-vs16
-    runs-on: windows-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: actions/cache@v2
-      with:
-        path: dependencies/.cache
-        key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
-    - name: 'Run CMake with VS16'
-      uses: lukka/run-cmake@v2
-      with:
-        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
-        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
-        buildDirectory: "${{ github.workspace }}/../../_temp/windows"
-        cmakeBuildType: Release
-        buildWithCMake: true
-        cmakeAppendedArgs:  -G Ninja -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF
-        buildWithCMakeArgs: --config Release
-    - name: 'Run CTest'
-      run: ctest -C Release  -LE explicitonly  --output-on-failure
-      working-directory: "${{ github.workspace }}/../../_temp/windows"
-    - name: 'Install with CMake'
-      uses: lukka/run-cmake@v3
-      with:
-        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
-        buildWithCMakeArgs: '--target install'
-    - name: 'Test Installation with CMake'
-      uses: lukka/run-cmake@v3
-      with:
-        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
-        cmakeListsTxtPath: '${{ github.workspace }}/tests/installation_tests/find/CMakeLists.txt'
-        cmakeBuildType: Release
-        buildWithCMake: true
-        buildDirectory: '${{ github.workspace }}/tests/installation_tests/find/buildDirectory'
-        cmakeAppendedArgs:  -G Ninja
-        buildWithCMakeArgs: '--config Release --verbose'
@@ -1,10 +1,10 @@
-name: VS16-ARM-CI
+name: VS17-ARM-CI

 on: [push, pull_request]

 jobs:
   ci:
-     name: windows-vs16
+     name: windows-vs17
     runs-on: windows-latest
     strategy:
       fail-fast: false
@@ -1,4 +1,4 @@
-name: VS16-CI
+name: VS17-CI

 on: [push, pull_request]

@@ -7,22 +7,22 @@ jobs:
    if: >-
      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
-    name: windows-vs16
+    name: windows-vs17
    runs-on: windows-latest
    strategy:
      fail-fast: false
      matrix:
        include:
-          - {gen: Visual Studio 16 2019, arch: Win32, static: ON}
-          - {gen: Visual Studio 16 2019, arch: Win32, static: OFF}
-          - {gen: Visual Studio 16 2019, arch: x64, static: ON}
-          - {gen: Visual Studio 16 2019, arch: x64, static: OFF}
+          - {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 ${{matrix.arch}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_BUILD_STATIC=${{matrix.static}} -B build
+        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
@@ -1,4 +1,4 @@
-name: VS15-CI
+name: VS17-CLANG-CI

 on: [push, pull_request]

@@ -7,22 +7,19 @@ jobs:
    if: >-
      ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
      ! contains(toJSON(github.event.commits.*.message), '[skip github]')
-    name: windows-vs15
-    runs-on: windows-2016
+    name: windows-vs17
+    runs-on: windows-latest
    strategy:
      fail-fast: false
      matrix:
        include:
-          - {gen: Visual Studio 15 2017, arch: Win32, static: ON}
-          - {gen: Visual Studio 15 2017, arch: Win32, static: OFF}
-          - {gen: Visual Studio 15 2017, arch: x64, static: ON}
-          - {gen: Visual Studio 15 2017, arch: x64, static: OFF}
+          - {gen: Visual Studio 17 2022, arch: x64}
    steps:
    - name: checkout
      uses: actions/checkout@v2
    - name: Configure
      run: |
-        cmake -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSIMDJSON_COMPETITION=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_BUILD_STATIC=${{matrix.static}} -B build
+        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
@@ -1,10 +1,10 @@
-name: VS16-NoExcept-CI
+name: VS17-NoExcept-CI

 on: [push, pull_request]

 jobs:
  ci:
-    name: windows-vs16
+    name: windows-vs17
    runs-on: windows-latest
    steps:
    - uses: actions/checkout@v2
@@ -12,7 +12,7 @@ jobs:
      with:
        path: dependencies/.cache
        key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
-    - name: 'Run CMake with VS16'
+    - name: 'Run CMake with VS17'
      uses: lukka/run-cmake@v3
      with:
        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
@@ -172,7 +172,7 @@ install:
  - export CMAKE_C_FLAGS="${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_NO_FORCE_INLINING=ON -DSIMDJSON_SANITIZE=ON";
+      export CMAKE_FLAGS="${CMAKE_FLAGS} -DSIMDJSON_SANITIZE=ON";
      export ASAN_OPTIONS="detect_leaks=0";
    fi
  - if [[ "${STATIC}" == "on" ]]; then
@@ -183,7 +183,7 @@ install:
 script:
  - mkdir build
  - cd build
-  - cmake   -DSIMDJSON_DEVELOPER_MODE=ON $CMAKE_FLAGS ..
+  - 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
@@ -85,6 +85,7 @@
        "valarray": "cpp",
        "vector": "cpp",
        "*.ipp": "cpp",
+        "__functional_base_03": "cpp",
        "filesystem": "cpp"
    }
 }
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.14)
 project(
    simdjson
    # The version number is modified by tools/release.py
-    VERSION 0.9.1
+    VERSION 2.0.2
    DESCRIPTION "Parsing gigabytes of JSON per second"
    HOMEPAGE_URL "https://simdjson.org/"
    LANGUAGES CXX C
@@ -20,8 +20,8 @@ string(
 # ---- Options, variables ----

 # These version numbers are modified by tools/release.py
-set(SIMDJSON_LIB_VERSION "8.0.0" CACHE STRING "simdjson library version")
-set(SIMDJSON_LIB_SOVERSION "8" CACHE STRING "simdjson library soversion")
+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)

@@ -49,19 +49,10 @@ 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)
-
-  if("$ENV{CI}")
-    set(SIMDJSON_DEVELOPER_MODE ON CACHE INTERNAL "")
-  endif()
 endif()

 include(cmake/handle-deprecations.cmake)
-
-if(SIMDJSON_DEVELOPER_MODE)
-  include(cmake/developer-options.cmake)
-else()
-  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.")
-endif()
+include(cmake/developer-options.cmake)

 # ---- simdjson library ----

@@ -180,6 +171,7 @@ endif()
 # ---- 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")
@@ -37,5 +37,9 @@ Furkan Taşkale
 Brendan Knapp
 Danila Kutenin
 Pavel Pavlov
-# if you have contributed to the project and your name does not 
+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!
@@ -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         = "0.9.1"
+PROJECT_NUMBER         = "2.0.2"

 # 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
@@ -3,7 +3,7 @@
 [![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/0.9.0/index.html)
+[![][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
 ===============================================
@@ -53,6 +53,7 @@ The simdjson library is easily consumable with a single .h and .cpp file.
 2. Create `quickstart.cpp`:

 ```c++
+#include <iostream>
 #include "simdjson.h"
 using namespace simdjson;
 int main(void) {
@@ -78,7 +79,7 @@ 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/0.9.0/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
 -------------------
@@ -137,6 +138,7 @@ We distinguish between "bindings" (which just wrap the C++ code) and a port to a
 - [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
@@ -158,7 +160,7 @@ We also have an informal [blog post providing some background and context](https

 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
 -------
@@ -4,8 +4,12 @@
 #include <map>
 #include <string>

+
 namespace amazon_cellphones {

+const bool UNTHREADED = false;
+const bool THREADED = true;
+
 using namespace json_benchmark;

 struct brand {
@@ -59,10 +63,11 @@ struct runner : public file_runner<I> {
    }
 };

+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>>(state);
+  run_json_benchmark<runner<I>, runner<simdjson_dom<UNTHREADED>>>(state);
 }

 }   // namespace amazon_cellphones
@@ -8,12 +8,16 @@ 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
@@ -37,7 +41,10 @@ struct simdjson_dom {

 };

-BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_dom)->UseManualTime();
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_dom<UNTHREADED>)->UseManualTime();
+#ifdef SIMDJSON_THREADS_ENABLED
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_dom<THREADED>)->UseManualTime();
+#endif

 } // namespace amazon_cellphones

@@ -8,17 +8,21 @@ 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;
+      auto doc = *i;
      size_t index{0};
      StringType copy;
      double rating;
@@ -58,7 +62,10 @@ struct simdjson_ondemand {

 };

-BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_ondemand)->UseManualTime();
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_ondemand<UNTHREADED>)->UseManualTime();
+#ifdef SIMDJSON_THREADS_ENABLED
+BENCHMARK_TEMPLATE(amazon_cellphones, simdjson_ondemand<THREADED>)->UseManualTime();
+#endif

 } // namespace amazon_cellphones

@@ -1,4 +1,5 @@
 #include <benchmark/benchmark.h>
+#include <iostream>
 #include "simdjson.h"
 #include <sstream>

@@ -1,4 +1,5 @@
 #include <benchmark/benchmark.h>
+#include <iostream>
 #include "simdjson.h"
 using namespace simdjson;
 using namespace benchmark;
@@ -97,9 +97,9 @@ struct option_struct {
        verbose = true;
        break;
      case 'a': {
-          auto impl = simdjson::available_implementations[optarg];
+          auto impl = simdjson::get_available_implementations()[optarg];
          if(impl && impl->supported_by_runtime_system()) {
-            simdjson::active_implementation = impl;
+            simdjson::get_active_implementation() = impl;
          } else {
            std::cerr << "implementation " << optarg << " not found or not supported " << std::endl;
          }
@@ -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>
@@ -66,7 +66,7 @@ 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) {
+  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;
    }
@@ -116,10 +116,10 @@ struct option_struct {
        verbose = true;
        break;
      case 'a': {
-        const implementation *impl = simdjson::available_implementations[optarg];
+        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) {
+          for (auto imple : simdjson::get_available_implementations()) {
            if(imple->supported_by_runtime_system()) {
              exit_message += imple->name();
              exit_message += " ";
@@ -127,7 +127,7 @@ struct option_struct {
          }
          exit_usage(exit_message);
        }
-        simdjson::active_implementation = impl;
+        simdjson::get_active_implementation() = impl;
        break;
      }
      case 'C':
@@ -175,7 +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
@@ -50,9 +50,9 @@ simdjson_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 {
@@ -10,8 +10,8 @@ void maybe_display_implementation() {
  static bool displayed_implementation = false;
  if(!displayed_implementation) {
    displayed_implementation = true;
-    std::cout << "simdjson::dom implementation:      " << simdjson::active_implementation->name() << std::endl;
-    std::cout << "simdjson::ondemand implementation (stage 1): " << simdjson::active_implementation->name() << std::endl;
+    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;
  }
 }
@@ -6,6 +6,9 @@

 namespace large_amazon_cellphones {

+const bool UNTHREADED = false;
+const bool THREADED = true;
+
 static const simdjson::padded_string &get_built_json();

 using namespace json_benchmark;
@@ -81,11 +84,11 @@ static const simdjson::padded_string &get_built_json() {
  return json;
 }

-
+template<bool threaded>
 struct simdjson_dom;

 template<typename I> simdjson_really_inline static void large_amazon_cellphones(benchmark::State &state) {
-  run_json_benchmark<runner<I>, runner<simdjson_dom>>(state);
+  run_json_benchmark<runner<I>, runner<simdjson_dom<UNTHREADED>>>(state);
 }

 }   // namespace large_amazon_cellphones
@@ -9,12 +9,16 @@ namespace large_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
@@ -38,7 +42,10 @@ struct simdjson_dom {

 };

-BENCHMARK_TEMPLATE(large_amazon_cellphones, simdjson_dom)->UseManualTime();
+BENCHMARK_TEMPLATE(large_amazon_cellphones, simdjson_dom<UNTHREADED>)->UseManualTime();
+#ifdef SIMDJSON_THREADS_ENABLED
+BENCHMARK_TEMPLATE(large_amazon_cellphones, simdjson_dom<THREADED>)->UseManualTime();
+#endif

 } // namespace large_amazon_cellphones

@@ -8,17 +8,21 @@ namespace large_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;
+      auto doc = *i;
      size_t index{0};
      StringType copy;
      double rating;
@@ -58,7 +62,10 @@ struct simdjson_ondemand {

 };

-BENCHMARK_TEMPLATE(large_amazon_cellphones, simdjson_ondemand)->UseManualTime();
+BENCHMARK_TEMPLATE(large_amazon_cellphones, simdjson_ondemand<UNTHREADED>)->UseManualTime();
+#ifdef SIMDJSON_THREADS_ENABLED
+BENCHMARK_TEMPLATE(large_amazon_cellphones, simdjson_ondemand<THREADED>)->UseManualTime();
+#endif

 } // namespace amazon_cellphones

@@ -3,19 +3,12 @@
 #
 add_library(simdjson-internal-flags INTERFACE)

-option(SIMDJSON_NO_FORCE_INLINING "Do not attempt to force function inlining" OFF)
-if(SIMDJSON_NO_FORCE_INLINING)
-  add_compile_definitions(SIMDJSON_NO_FORCE_INLINING=1)
-endif()

-option(SIMDJSON_CHECK_EOF "Check for the end of the input buffer (to avoid buffer overflows). We expect this setting to be ON except for performance testing." ON)
+option(SIMDJSON_CHECK_EOF "Check for the end of the input buffer. The setting is unnecessary since we require padding of the inputs. You should expect tests to fail with this option turned on." OFF)
 if(SIMDJSON_CHECK_EOF)
  add_compile_definitions(SIMDJSON_CHECK_EOF=1)
-else()
-  add_compile_definitions(SIMDJSON_CHECK_EOF=0)
 endif()

-
 option(SIMDJSON_SANITIZE_UNDEFINED "Sanitize undefined behavior" OFF)
 if(SIMDJSON_SANITIZE_UNDEFINED)
  add_compile_options(-fsanitize=undefined -fno-sanitize-recover=all)
@@ -182,6 +175,18 @@ if(CMAKE_C_COMPILER_ID MATCHES "Intel")
  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -static-intel")
 endif()

+option(
+    SIMDJSON_AVX512_ALLOWED
+    "Enable AVX-512 instructions (only affects processors and compilers with AVX-512 support)."
+    ON
+)
+if(SIMDJSON_AVX512_ALLOWED)
+  add_compile_definitions(SIMDJSON_AVX512_ALLOWED=1)
+else()
+  add_compile_definitions(SIMDJSON_AVX512_ALLOWED=0)
+  message(STATUS "AVX-512 instructions are not allowed.")
+endif()
+
 include(CheckSymbolExists)
 check_symbol_exists(fork unistd.h HAVE_POSIX_FORK)
 check_symbol_exists(wait sys/wait.h HAVE_POSIX_WAIT)
@@ -1,7 +1,7 @@
 #
 # Implementation selection
 #
-set(SIMDJSON_ALL_IMPLEMENTATIONS fallback westmere haswell arm64 ppc64)
+set(SIMDJSON_ALL_IMPLEMENTATIONS fallback westmere haswell icelake arm64 ppc64)

 set(
    SIMDJSON_IMPLEMENTATION ""
@@ -15,7 +15,7 @@ set(
    SIMDJSON_EXCLUDE_IMPLEMENTATION ""
    CACHE STRING "\
 Semicolon-separated list of implementations to exclude \
-(haswell/westmere/arm64/ppc64/fallback). By default, excludes any \
+(icelake/haswell/westmere/arm64/ppc64/fallback). By default, excludes any \
 implementations that are unsupported at compile time or cannot be selected at \
 runtime."
 )
@@ -13,8 +13,9 @@ cmake_dependent_option(SIMDJSON_GOOGLE_BENCHMARKS "compile the Google Benchmark
 if(SIMDJSON_GOOGLE_BENCHMARKS)
  set_off(BENCHMARK_ENABLE_TESTING)
  set_off(BENCHMARK_ENABLE_INSTALL)
+  set_off(BENCHMARK_ENABLE_WERROR)

-  import_dependency(google_benchmarks google/benchmark 8982e1e)
+  import_dependency(google_benchmarks google/benchmark f91b6b4)
  add_dependency(google_benchmarks)
 endif()

@@ -1,3 +1,5 @@
+We take our documentation seriously. Please start reading the documentation before you attempt to use simdjson. We hope you will enjoy reading us.
+
 * Basics: https://github.com/simdjson/simdjson/blob/master/doc/basics.md is an overview of how to use simdjson and its APIs.
 * parse_many: https://github.com/simdjson/simdjson/blob/master/doc/parse_many.md describes an interface providing features to work with files or streams containing multiple small JSON documents. As fast and convenient as possible.
 * Performance: https://github.com/simdjson/simdjson/blob/master/doc/performance.md shows some more advanced scenarios and how to tune for them.
@@ -3,8 +3,8 @@ The Document-Object-Model (DOM) front-end

 An overview of what you need to know to use simdjson, with examples.

-* [DOM vs On Demand](#dom-vs-ondemand)
-* [The Basics: Loading and Parsing JSON Documents](#the-basics-loading-and-parsing-json-documents)
+* [DOM vs On Demand](#dom-vs-on-demand)
+* [The Basics: Loading and Parsing JSON Documents](#the-basics-loading-and-parsing-json-documents-using-the-dom-front-end)
 * [Using the Parsed JSON](#using-the-parsed-json)
 * [C++17 Support](#c17-support)
 * [JSON Pointer](#json-pointer)
@@ -15,6 +15,7 @@ An overview of what you need to know to use simdjson, with examples.
 * [Reusing the parser for maximum efficiency](#reusing-the-parser-for-maximum-efficiency)
 * [Server Loops: Long-Running Processes and Memory Capacity](#server-loops-long-running-processes-and-memory-capacity)
 * [Best Use of the DOM API](#best-use-of-the-dom-api)
+* [Padding and Temporary Copies](#padding-and-temporary-copies)

 DOM vs On Demand
 ----------------------------------------------
@@ -35,11 +36,12 @@ dom::parser parser;
 dom::element doc = parser.load(filename); // load and parse a file
 ```

-Or by creating a string and calling `parse()`:
+Or by creating a padded string (for efficiency reasons, simdjson requires a string with
+SIMDJSON_PADDING bytes at the end) and calling `parse()`:

 ```c++
 dom::parser parser;
-dom::element doc = parser.parse(std::string("[1,2,3]")); // parse a string
+dom::element doc = parser.parse("[1,2,3]"_padded); // parse a string, the _padded suffix creates a simdjson::padded_string instance
 ```

 The parsed document resulting from the `parser.load` and `parser.parse` calls depends on the `parser` instance. Thus the `parser` instance must remain in scope. Furthermore, you must have at most one parsed document in play per `parser` instance.
@@ -52,7 +54,8 @@ During the`load` or `parse` calls, neither the input file nor the input string a
 For best performance, a `parser` instance should be reused over several files: otherwise you will needlessly reallocate memory, an expensive process. It is also possible to avoid entirely memory allocations during parsing when using simdjson. [See our performance notes for details](performance.md).

 If you need a lower-level interface, you may call the function `parser.parse(const char * p, size_t l)` on a pointer `p` while specifying the
-length of your input `l` in bytes.
+length of your input `l` in bytes. To see how to get the very best performance from a low-level approach, you way want to read our [performance notes](https://github.com/simdjson/simdjson/blob/master/doc/performance.md#padding-and-temporary-copies) on this topic (see the Padding and Temporary Copies section).
+

 Using the Parsed JSON
 ---------------------
@@ -61,12 +64,12 @@ Once you have an element, you can navigate it with idiomatic C++ iterators, oper

 * **Extracting Values (with exceptions):** You can cast a JSON element to a native type: `double(element)` or
  `double x = json_element`. This works for double, uint64_t, int64_t, bool,
-  dom::object and dom::array. An exception is thrown if the cast is not possible.
+  dom::object and dom::array. An exception (`simdjson::simdjson_error`) is thrown if the cast is not possible.
 * **Extracting Values (without exceptions):** You can use a variant usage of `get()` with error codes to avoid exceptions. You first declare the variable of the appropriate type (`double`, `uint64_t`, `int64_t`, `bool`,
  `dom::object` and `dom::array`) and pass it by reference to `get()` which gives you back an error code: e.g.,
  ```c++
  simdjson::error_code error;
-  std::string numberstring = "1.2"; // our JSON input ("1.2")
+  simdjson::padded_string numberstring = "1.2"_padded; // our JSON input ("1.2")
  simdjson::dom::parser parser;
  double value; // variable where we store the value to be parsed
  error = parser.parse(numberstring).get(value);
@@ -78,7 +81,7 @@ Once you have an element, you can navigate it with idiomatic C++ iterators, oper
  know the type of the value, you can cast it right there, too! `for (double value : array) { ... }`
 * **Object Iteration:** You can iterate through an object's fields, too: `for (auto [key, value] : object)`
 * **Array Index:** To get at an array value by index, use the at() method: `array.at(0)` gets the
-  first element.
+  first element. The at() method has linear-time complexity so it should not be used to iterate over the values of an array.
  > Note that array[0] does not compile, because implementing [] gives the impression indexing is a
  > O(1) operation, which it is not presently in simdjson. Instead, you should iterate over the elements
  > using a for-loop, as in our examples.
@@ -93,11 +96,11 @@ Once you have an element, you can navigate it with idiomatic C++ iterators, oper
 The following code illustrates all of the above:

 ```c++
-std::string cars_json = R"( [
+auto cars_json = R"( [
  { "make": "Toyota", "model": "Camry",  "year": 2018, "tire_pressure": [ 40.1, 39.9, 37.7, 40.4 ] },
  { "make": "Kia",    "model": "Soul",   "year": 2012, "tire_pressure": [ 30.1, 31.0, 28.6, 28.7 ] },
  { "make": "Toyota", "model": "Tercel", "year": 1999, "tire_pressure": [ 29.8, 30.0, 30.2, 30.5 ] }
-] )";
+] )"_padded;
 dom::parser parser;

 // Iterating through an array of objects
@@ -126,10 +129,10 @@ for (dom::object car : parser.parse(cars_json)) {
 Here is a different example illustrating the same ideas:

 ```C++
-std::string abstract_json = R"( [
+auto abstract_json = R"( [
    {  "12345" : {"a":12.34, "b":56.78, "c": 9998877}   },
    {  "12545" : {"a":11.44, "b":12.78, "c": 11111111}  }
-  ] )";
+  ] )"_padded;
 dom::parser parser;

 // Parse and iterate through an array of objects
@@ -148,8 +151,8 @@ And another one:


 ```C++
-  std::string abstract_json = R"(
-    {  "str" : { "123" : {"abc" : 3.14 } } } )";
+  auto abstract_json = R"(
+    {  "str" : { "123" : {"abc" : 3.14 } } } )"_padded;
  dom::parser parser;
  double v = parser.parse(abstract_json)["str"]["123"]["abc"];
  cout << "number: " << v << endl;
@@ -162,7 +165,7 @@ C++17 Support
 While the simdjson library can be used in any project using C++ 11 and above, field iteration has special support C++ 17's destructuring syntax. For example:

 ```c++
-std::string json = R"(  { "foo": 1, "bar": 2 }  )";
+padded_string json = R"(  { "foo": 1, "bar": 2 }  )"_padded;
 dom::parser parser;
 dom::object object;
 auto error = parser.parse(json).get(object);
@@ -176,7 +179,7 @@ For comparison, here is the C++ 11 version of the same code:

 ```c++
 // C++ 11 version for comparison
-std::string json = R"(  { "foo": 1, "bar": 2 }  )";
+padded_string json = R"(  { "foo": 1, "bar": 2 }  )"_padded;
 dom::parser parser;
 dom::object object;
 auto error = parser.parse(json).get(object);
@@ -194,11 +197,11 @@ The simdjson library also supports [JSON pointer](https://tools.ietf.org/html/rf
 `at_pointer()` method, letting you reach further down into the document in a single call:

 ```c++
-std::string cars_json = R"( [
+auto cars_json = R"( [
  { "make": "Toyota", "model": "Camry",  "year": 2018, "tire_pressure": [ 40.1, 39.9, 37.7, 40.4 ] },
  { "make": "Kia",    "model": "Soul",   "year": 2012, "tire_pressure": [ 30.1, 31.0, 28.6, 28.7 ] },
  { "make": "Toyota", "model": "Tercel", "year": 1999, "tire_pressure": [ 29.8, 30.0, 30.2, 30.5 ] }
-] )";
+] )"_padded;
 dom::parser parser;
 dom::element cars = parser.parse(cars_json);
 cout << cars.at_pointer("/0/tire_pressure/1") << endl; // Prints 39.9
@@ -215,11 +218,11 @@ You can apply a JSON path to any node and the path gets interpreted relatively,
 Consider the following example:

 ```c++
-std::string cars_json = R"( [
+auto cars_json = R"( [
  { "make": "Toyota", "model": "Camry",  "year": 2018, "tire_pressure": [ 40.1, 39.9, 37.7, 40.4 ] },
  { "make": "Kia",    "model": "Soul",   "year": 2012, "tire_pressure": [ 30.1, 31.0, 28.6, 28.7 ] },
  { "make": "Toyota", "model": "Tercel", "year": 1999, "tire_pressure": [ 29.8, 30.0, 30.2, 30.5 ] }
-] )";
+] )"_padded;
 dom::parser parser;
 dom::element cars = parser.parse(cars_json);
 cout << cars.at_pointer("/0/tire_pressure/1") << endl; // Prints 39.9
@@ -246,7 +249,11 @@ auto error = parser.parse(json).get(doc);
 if (error) { cerr << error << endl; exit(1); }
 ```

-When you use the code this way, it is your responsibility to check for error before using the
+When there is no error, the error code simdjson::SUCCESS is returned: it evaluates as false as a Boolean.
+We have several error codes to indicate errors, they all evaluate to true as a Boolean: your software should not generally not depend on exact
+error codes. We may change the error codes in future releases and the exact error codes could vary depending on your system.
+
+When you use the code without exceptions, it is your responsibility to check for error before using the
 result: if there is an error, the result value will not be valid and using it will caused undefined
 behavior.

@@ -271,6 +278,7 @@ Our program loads the file, selects value corresponding to key "search_metadata"
 it selects the key "count" within that object.

 ```C++
+#include <iostream>
 #include "simdjson.h"

 int main(void) {
@@ -298,6 +306,7 @@ triggering exceptions. To do this, we use `["statuses"].at(0)["id"]`. We break t
 Observe how we use the `at` method when querying an index into an array, and not the bracket operator.

 ```C++
+#include <iostream>
 #include "simdjson.h"

 int main(void) {
@@ -313,16 +322,19 @@ int main(void) {
 }
 ```

+The `at()` method has linear-time complexity: it should not be used to iterate
+over the content of an array.
+
 ### Error Handling Example

 This is how the example in "Using the Parsed JSON" could be written using only error code checking:

 ```c++
-std::string cars_json = R"( [
+auto cars_json = R"( [
  { "make": "Toyota", "model": "Camry",  "year": 2018, "tire_pressure": [ 40.1, 39.9, 37.7, 40.4 ] },
  { "make": "Kia",    "model": "Soul",   "year": 2012, "tire_pressure": [ 30.1, 31.0, 28.6, 28.7 ] },
  { "make": "Toyota", "model": "Tercel", "year": 1999, "tire_pressure": [ 29.8, 30.0, 30.2, 30.5 ] }
-] )";
+] )"_padded;
 dom::parser parser;
 dom::array cars;
 auto error = parser.parse(cars_json).get(cars);
@@ -365,10 +377,10 @@ for (dom::element car_element : cars) {
 Here is another example:

 ```C++
-std::string abstract_json = R"( [
+auto abstract_json = R"( [
    {  "12345" : {"a":12.34, "b":56.78, "c": 9998877}   },
    {  "12545" : {"a":11.44, "b":12.78, "c": 11111111}  }
-  ] )";
+  ] )"_padded;
 dom::parser parser;
 dom::array array;
 auto error = parser.parse(abstract_json).get(array);
@@ -398,8 +410,8 @@ for (dom::element elem : array) {
 And another one:

 ```C++
-  std::string abstract_json = R"(
-    {  "str" : { "123" : {"abc" : 3.14 } } } )";
+  auto abstract_json = R"(
+    {  "str" : { "123" : {"abc" : 3.14 } } } )"_padded;
  dom::parser parser;
  double v;
  auto error = parser.parse(abstract_json)["str"]["123"]["abc"].get(v);
@@ -454,6 +466,7 @@ program from continuing if there was an error.
 If one is willing to trigger exceptions, it is possible to write simpler code:

 ```C++
+#include <iostream>
 #include "simdjson.h"

 int main(void) {
@@ -533,16 +546,15 @@ you can parse terabytes of JSON data without doing any new allocation.
 dom::parser parser;

 // This initializes buffers and a document big enough to handle this JSON.
-dom::element doc = parser.parse(std::string("[ true, false ]"));
-// std::string("[ true, false ]") may be replaced by "[ true, false ]"s
+dom::element doc = parser.parse("[ true, false ]"_padded);
 cout << doc << endl;

 // This reuses the existing buffers, and reuses and *overwrites* the old document
-doc = parser.parse(std::string("[1, 2, 3]"));
+doc = parser.parse("[1, 2, 3]"_padded);
 cout << doc << endl;

 // This also reuses the existing buffers, and reuses and *overwrites* the old document
-dom::element doc2 = parser.parse(std::string("true"));
+dom::element doc2 = parser.parse("true"_padded);
 // Even if you keep the old reference around, doc and doc2 refer to the same document.
 cout << doc << endl;
 cout << doc2 << endl;
@@ -608,3 +620,26 @@ Best Use of the DOM API
 -------------------------

 The simdjson API provides access to the JSON DOM (document-object-model) content as a tree of `dom::element` instances, each representing an object, an array or an atomic type (null, true, false, number). These `dom::element` instances are lightweight objects (e.g., spanning 16 bytes) and it might be advantageous to pass them by value, as opposed to passing them by reference or by pointer.
+
+Padding and Temporary Copies
+--------------
+
+The simdjson function `parser.parse` reads data from a padded  buffer, containing SIMDJSON_PADDING extra bytes added at the end.
+If you are passing a `padded_string` to `parser.parse` or loading the JSON directly from
+disk (`parser.load`), padding is automatically  handled.
+When calling `parser.parse` on a pointer (e.g., `parser.parse(my_char_pointer, my_length_in_bytes)`) a temporary copy  is made by default with adequate padding and you, again, do not need to be concerned with padding.
+
+Some users may not be able use our `padded_string` class or to load the data directly from disk (`parser.load`). They may need to pass data pointers to the library.  If these users wish to avoid temporary copies and corresponding temporary memory allocations, they may want to call `parser.parse` with the `realloc_if_needed` parameter set to false (e.g., `parser.parse(my_char_pointer, my_length_in_bytes, false)`). In such cases, they need to ensure that there are at least SIMDJSON_PADDING extra bytes at the end that can be safely accessed and read. They do not need to initialize the padded bytes to any value in particular. The following example is safe:
+
+
+```C++
+const char *json      = R"({"key":"value"})";
+const size_t json_len = std::strlen(json);
+std::unique_ptr<char[]> padded_json_copy{new char[json_len + SIMDJSON_PADDING]};
+memcpy(padded_json_copy.get(), json, json_len);
+memset(padded_json_copy.get() + json_len, 0, SIMDJSON_PADDING);
+simdjson::dom::parser parser;
+simdjson::dom::element element = parser.parse(padded_json_copy.get(), json_len, false);
+````
+
+Setting the `realloc_if_needed` parameter `false` in this manner may lead to better performance since copies are avoided, but it requires that the user takes more responsibilities: the simdjson library cannot verify that the input buffer was padded with SIMDJSON_PADDING extra bytes.
@@ -50,9 +50,9 @@ Inspecting the Detected Implementation
 You can check what implementation is running with `active_implementation`:

 ```c++
-cout << "simdjson v" << STRINGIFY(SIMDJSON_VERSION) << endl;
-cout << "Detected the best implementation for your machine: " << simdjson::active_implementation->name();
-cout << "(" << simdjson::active_implementation->description() << ")" << endl;
+cout << "simdjson v" << SIMDJSON_STRINGIFY(SIMDJSON_VERSION) << endl;
+cout << "Detected the best implementation for your machine: " << simdjson::get_active_implementation()->name();
+cout << "(" << simdjson::get_active_implementation()->description() << ")" << endl;
 ```

 Implementation detection will happen in this case when you first call `name()`.
@@ -63,7 +63,7 @@ Querying Available Implementations
 You can list all available implementations, regardless of which one was selected:

 ```c++
-for (auto implementation : simdjson::available_implementations) {
+for (auto implementation : simdjson::get_available_implementations()) {
  cout << implementation->name() << ": " << implementation->description() << endl;
 }
 ```
@@ -71,10 +71,10 @@ for (auto implementation : simdjson::available_implementations) {
 And look them up by name:

 ```c++
-cout << simdjson::available_implementations["fallback"]->description() << endl;
+cout << simdjson::get_available_implementations()["fallback"]->description() << endl;
 ```
 Though the fallback implementation should always be available, others might be missing. When
-an implementation is not available, the bracket call `simdjson::available_implementations[name]`
+an implementation is not available, the bracket call `simdjson::get_available_implementations()[name]`
 will return the null pointer.

 The available implementations have been compiled but may not necessarily be run safely on your system
@@ -90,18 +90,18 @@ can select the CPU architecture yourself:

 ```c++
 // Use the fallback implementation, even though my machine is fast enough for anything
-simdjson::active_implementation = simdjson::available_implementations["fallback"];
+simdjson::get_active_implementation() = simdjson::get_available_implementations()["fallback"];
 ```

 You are responsible for ensuring that the requirements of the selected implementation match your current system.
-Furthermore, you should check that the implementation is available before setting it to `simdjson::active_implementation`
+Furthermore, you should check that the implementation is available before setting it to `simdjson::get_active_implementation()`
 by comparing it with the null pointer.

 ```c++
-auto my_implementation = simdjson::available_implementations["haswell"];
+auto my_implementation = simdjson::get_available_implementations()["haswell"];
 if(! my_implementation) { exit(1); }
 if(! my_implementation->supported_by_runtime_system()) { exit(1); }
-simdjson::active_implementation = my_implementation;
+simdjson::get_active_implementation() = my_implementation;
 ```

 Checking that an Implementation can Run on your System
@@ -110,12 +110,12 @@ Checking that an Implementation can Run on your System
 You should call `supported_by_runtime_system()` to compare the processor's features with the need of the implementation.

 ```c++
-for (auto implementation : simdjson::available_implementations) {
+for (auto implementation : simdjson::get_available_implementations()) {
  if(implementation->supported_by_runtime_system()) {
    cout << implementation->name() << ": " << implementation->description() << endl;
  }
 }
 ```

-The call to `supported_by_runtime_system()` maybe relatively expensive. Do not call  `supported_by_runtime_system()` each
-time you parse a JSON input (for example). It is meant to be called a handful of times at most in the life of a program.
+The call to `supported_by_runtime_system()` may be relatively expensive. Do not call  `supported_by_runtime_system()` each
+time you parse a JSON input (for example). It is meant to be called a handful of times at most in the life of a program.
@@ -1,8 +1,16 @@
 iterate_many
 ==========

-An interface providing features to work with files or streams containing multiple small JSON documents.
-As fast and convenient as possible.
+When serializing large databases, it is often better to write out many independent JSON
+documents, instead of one large monolithic document containing many records. The simdjson
+library provides high-speed access to files or streams containing multiple small JSON documents separated by ASCII white-space characters. Given an input such as
+```JSON
+{"text":"a"}
+{"text":"b"}
+{"text":"c"}
+...
+```
+... you want to read the entries (individual JSON documents) as quickly and as conveniently as possible. Importantly, the input might span several gigabytes, but you want to use a small (fixed) amount of memory. Ideally, you'd also like the parallelize the processing (using more than one core) to speed up the process.

 Contents
 --------
@@ -108,7 +116,9 @@ Whitespace Characters:
 - **Linefeed**
 - **Carriage return**
 - **Horizontal tab**
- **Nothing**
+
+If your documents are all objects or arrays, then you may even have nothing between them.
+E.g., `[1,2]{"32":1}` is recognized as two documents.

 Some official formats **(non-exhaustive list)**:
 - [Newline-Delimited JSON (NDJSON)](http://ndjson.org/)
@@ -167,7 +177,7 @@ Let us illustrate the idea with code:


 ```C++
-    std::string json = R"([1,2,3]  {"1":1,"2":3,"4":4} [1,2,3]  )";
+    auto json = R"([1,2,3]  {"1":1,"2":3,"4":4} [1,2,3]  )"_padded;
    simdjson::ondemand::parser parser;
    simdjson::ondemand::document_stream stream;
    auto error = parser.iterate_many(json).get(stream);
@@ -175,7 +185,7 @@ Let us illustrate the idea with code:
    auto i = stream.begin();
 	 size_t count{0};
    for(; i != stream.end(); ++i) {
-        auto & doc = *i;
+        auto doc = *i;
        if(!i.error()) {
          std::cout << "got full document at " << i.current_index() << std::endl;
          std::cout << i.source() << std::endl;
@@ -208,7 +218,7 @@ Some users may need to work with truncated streams. The simdjson may truncate do
 Consider the following example where a truncated document (`{"key":"intentionally unclosed string  `) containing 39 bytes has been left within the stream. In such cases, the first two whole documents are parsed and returned, and the `truncated_bytes()` method returns 39.

 ```C++
-    std::string json = R"([1,2,3]  {"1":1,"2":3,"4":4} {"key":"intentionally unclosed string  )";
+    auto json = R"([1,2,3]  {"1":1,"2":3,"4":4} {"key":"intentionally unclosed string  )"_padded;
    simdjson::ondemand::parser parser;
    simdjson::ondemand::document_stream stream;
    auto error = parser.iterate_many(json,json.size()).get(stream);
@@ -226,4 +236,4 @@ This will print:
 39 bytes
 ```

-Importantly, you should only call `truncated_bytes()` after iterating through all of the documents since the stream cannot tell whether there are truncated documents at the very end when it may not have accessed that part of the data yet.
+Importantly, you should only call `truncated_bytes()` after iterating through all of the documents since the stream cannot tell whether there are truncated documents at the very end when it may not have accessed that part of the data yet.
@@ -709,42 +709,6 @@ in production systems:
    }
 ```

-
-### Long-Running Processes and Memory Capacity
-
-The On Demand approach also automatically expands its memory capacity when larger documents are parsed. However, for longer processes where very large files are processed (such as server loops), this capacity is not resized down. Similarly to the DOM-based approach (see [here](https://github.com/simdjson/simdjson/blob/master/doc/dom.md#server-loops-long-running-processes-and-memory-capacity)]), On Demand also lets you adjust the maximal capacity that the parser can process:
-
-* You can set an upper bound (*max_capacity*) when construction the parser:
-```C++
-    ondemand::parser parser(1000*1000);  // Never grows past documents > 1 MB
-    auto doc = parser.iterate(json);
-    for (web_request request : listen()) {
-      padded_string json;
-      padded_string json = padded_string::load(request.body);
-      auto error = parser.iterate(json);
-      // If the document was above our limit, emit 413 = payload too large
-      if (error == CAPACITY) { request.respond(413); continue; }
-      // ...
-    }
-```
-
-The capacity will grow as the parser encounters larger documents up to 1 MB.
-
-* You can also allocate a *fixed capacity* that will never grow:
-```C++
-    ondemand::parser parser(1000*1000);
-    parser.allocate(1000*1000)  // Fix the capacity to 1 MB
-    auto doc = parser.iterate(json);
-    for (web_request request : listen()) {
-      padded_string json;
-      padded_string json = padded_string::load(request.body);
-      auto error = parser.iterate(json);
-      // If the document was above our limit, emit 413 = payload too large
-      if (error == CAPACITY) { request.respond(413); continue; }
-      // ...
-    }
-```
-You can also manually set the maximal capacity using the method `set_max_capacity()`.
 ### Benefits of the On Demand Approach

 We expect that the On Demand approach has many of the performance benefits of the schema-based approach, while providing a flexibility that is similar to that of the DOM-based approach.
@@ -764,7 +728,6 @@ There are currently additional technical limitations which we expect to resolve

 * The simdjson library offers runtime dispatching which allows you to compile one binary and have it run at full speed on different processors, taking advantage of the specific features of the processor. The On Demand API has limited runtime dispatch support. Under x64 systems, to fully benefit from the On Demand API, we recommend that you compile your code for a specific processor. E.g., if your processor supports AVX2 instructions, you should compile your binary executable with AVX2 instruction support (by using your compiler's commands). If you are sufficiently technically proficient, you can implement runtime dispatching within your application, by compiling your On Demand code for different processors.
 * There is an initial phase which scans the entire document quickly, irrespective of the size of the document. We plan to break this phase into distinct steps for large files in a future release as we have done with other components of our API (e.g., `parse_many`).
-* The On Demand API does not support JSON Pointer. This capability is currently limited to our core API.

 ### Applicability of the On Demand Approach

@@ -1,8 +1,14 @@
 parse_many
 ==========

-An interface providing features to work with files or streams containing multiple small JSON documents.
-As fast and convenient as possible.
+An interface providing features to work with files or streams containing multiple small JSON documents. Given an input such as
+```JSON
+{"text":"a"}
+{"text":"b"}
+{"text":"c"}
+...
+```
+... you want to read the entries (individual JSON documents) as quickly and as conveniently as possible. Importantly, the input might span several gigabytes, but you want to use a small (fixed) amount of memory. Ideally, you'd also like the parallelize the processing (using more than one core) to speed up the process.

 Contents
 --------
@@ -174,7 +180,7 @@ Let us illustrate the idea with code:


 ```C++
-    std::string json = R"([1,2,3]  {"1":1,"2":3,"4":4} [1,2,3]  )";
+    auto json = R"([1,2,3]  {"1":1,"2":3,"4":4} [1,2,3]  )"_padded;
    simdjson::dom::parser parser;
    simdjson::dom::document_stream stream;
    auto error = parser.parse_many(json).get(stream);
@@ -215,7 +221,7 @@ Some users may need to work with truncated streams. The simdjson may truncate do
 Consider the following example where a truncated document (`{"key":"intentionally unclosed string  `) containing 39 bytes has been left within the stream. In such cases, the first two whole documents are parsed and returned, and the `truncated_bytes()` method returns 39.

 ```C++
-    std::string json = R"([1,2,3]  {"1":1,"2":3,"4":4} {"key":"intentionally unclosed string  )";
+    auto json = R"([1,2,3]  {"1":1,"2":3,"4":4} {"key":"intentionally unclosed string  )"_padded;
    simdjson::dom::parser parser;
    simdjson::dom::document_stream stream;
    auto error = parser.parse_many(json,json.size()).get(stream);
@@ -227,4 +233,4 @@ Consider the following example where a truncated document (`{"key":"intentionall
 ```


-Importantly, you should only call `truncated_bytes()` after iterating through all of the documents since the stream cannot tell whether there are truncated documents at the very end when it may not have accessed that part of the data yet.
+Importantly, you should only call `truncated_bytes()` after iterating through all of the documents since the stream cannot tell whether there are truncated documents at the very end when it may not have accessed that part of the data yet.
@@ -10,7 +10,7 @@ are still some scenarios where tuning can enhance performance.
 * [Large files and huge page support](#large-files-and-huge-page-support)
 * [Number parsing](#number-parsing)
 * [Visual Studio](#visual-studio)
-* [Downclocking](#downclocking)
+* [Power Usage and Downclocking](#power-usage-and-downclocking)

 Reusing the parser for maximum efficiency
 -----------------------------------------
@@ -24,14 +24,14 @@ you can parse terabytes of JSON data without doing any new allocation.
 ondemand::parser parser;

 // This initializes buffers  big enough to handle this JSON.
-std::string json = "[ true, false ]";
+auto json = "[ true, false ]"_padded;
 auto doc = parser.iterate(json);
 for(bool i : doc.get_array()) {
  cout << i << endl;
 }

 // This reuses the existing buffers
-std::string number_json = "[1, 2, 3]";
+auto number_json = "[1, 2, 3]"_padded;
 doc = parser.iterate(number_json);
 for(int64_t i : doc.get_array()) {
  cout << i << endl;
@@ -45,10 +45,53 @@ Reusing string buffers
 We recommend against creating many `std::string` or `simdjson::padded_string` instances to store the JSON content in your application. [Creating many non-trivial objects is convenient but often surprisingly slow](https://lemire.me/blog/2020/08/08/performance-tip-constructing-many-non-trivial-objects-is-slow/). Instead, as much as possible, you should allocate (once or a few times) reusable memory buffers where you write your JSON content. If you have a buffer `json_str` (of type `char*`) allocated for  `capacity` bytes and you store a JSON document spanning `length` bytes, you can pass it to simdjson as follows:

 ```c++
- auto doc = parser.iterate(json_str, length));
+ auto doc = parser.iterate(padded_string_view(json_str, length, capacity));
+```
+
+or simply
+
+
+```c++
+ auto doc = parser.iterate(json_str, length, capacity);
 ```


+Server Loops: Long-Running Processes and Memory Capacity
+---------------------------------
+
+The On Demand approach also automatically expands its memory capacity when larger documents are parsed. However, for longer processes where very large files are processed (such as server loops), this capacity is not resized down. On Demand also lets you adjust the maximal capacity that the parser can process:
+
+* You can set an upper bound (*max_capacity*) when construction the parser:
+```C++
+    ondemand::parser parser(1000*1000);  // Never grows past documents > 1 MB
+    auto doc = parser.iterate(json);
+    for (web_request request : listen()) {
+      padded_string json;
+      padded_string json = padded_string::load(request.body);
+      auto error = parser.iterate(json);
+      // If the document was above our limit, emit 413 = payload too large
+      if (error == CAPACITY) { request.respond(413); continue; }
+      // ...
+    }
+```
+
+The capacity will grow as the parser encounters larger documents up to 1 MB.
+
+* You can also allocate a *fixed capacity* that will never grow:
+```C++
+    ondemand::parser parser(1000*1000);
+    parser.allocate(1000*1000)  // Fix the capacity to 1 MB
+    auto doc = parser.iterate(json);
+    for (web_request request : listen()) {
+      padded_string json;
+      padded_string json = padded_string::load(request.body);
+      auto error = parser.iterate(json);
+      // If the document was above our limit, emit 413 = payload too large
+      if (error == CAPACITY) { request.respond(413); continue; }
+      // ...
+    }
+```
+You can also manually set the maximal capacity using the method `set_max_capacity()`.

 Large files and huge page support
 ---------------------------------
@@ -104,23 +147,21 @@ Recent versions of Microsoft Visual Studio on Windows provides support for the L
 Under Windows, we also support the GNU GCC compiler via MSYS2. The performance of 64-bit MSYS2 under Windows excellent (on par with Linux).


-Downclocking
+Power Usage and Downclocking
 --------------

-
-
-SIMD instructions are the public transportation of computing. Instead of using 4 distinct instructions to add numbers, you can replace them with a single instruction that does the same work. Though the one instruction is slightly more expensive, the energy used per unit of work is much less with SIMD. If you can increase your speed using SIMD instructions (NEON, SSE, AVX), you should expect to reduce your power usage.
+The simdjson library relies on SIMD instructions. SIMD instructions are the public transportation of computing. Instead of using 4 distinct instructions to add numbers, you can replace them with a single instruction that does the same work. Though the one instruction is slightly more expensive, the energy used per unit of work is much less with SIMD. If you can increase your speed using SIMD instructions (NEON, SSE, AVX), you should expect to reduce your power usage.

 The SIMD instructions that simdjson relies upon (SSE and AVX under x64, NEON under ARM, ALTIVEC under PPC) are routinely part of runtime libraries (e.g., [Go](https://golang.org/src/runtime/memmove_amd64.s), [Glibc](https://github.com/ihtsae/glibc/commit/5f3d0b78e011d2a72f9e88b0e9ef5bc081d18f97), [LLVM](https://github.com/llvm/llvm-project/blob/96f3ea0d21b48ca088355db10d4d1a2e9bc9f884/lldb/tools/debugserver/source/MacOSX/i386/DNBArchImplI386.cpp), [Rust](https://github.com/rust-lang/rust/commit/070fad1701fb36b112853b0a6a9787a7bb7ff34c), [Java](http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/file/c1374141598c/src/cpu/x86/vm/stubGenerator_x86_64.cpp#l1297), [PHP](https://github.com/php/php-src/blob/e5cb53ec68603d4dbdd780fd3ecfca943b4fd383/ext/standard/string.c)). What distinguishes the simdjson library is that it is built from the ground up to benefit from these instructions.


-You should not expect the simdjson library to cause *downclocking* of your recent Intel CPU cores.
-
-On some Intel processors, using SIMD instructions in a sustained manner on the same CPU core may result in a phenomenon called downclocking whereas the processor initially runs these instructions at a slow speed before reducing the frequency of the core for a short time (milliseconds). Intel refers to these states as licenses. On some current Intel processors, it occurs under two scenarios:
+You should not expect the simdjson library to cause *downclocking* of your recent Intel CPU cores. On some Intel processors, using SIMD instructions in a sustained manner on the same CPU core may result in a phenomenon called downclocking whereas the processor initially runs these instructions at a slow speed before reducing the frequency of the core for a short time (milliseconds). Intel refers to these states as licenses. On some current Intel processors, it occurs under two scenarios:

 - [Whenever 512-bit AVX-512 instructions are used](https://lemire.me/blog/2018/09/07/avx-512-when-and-how-to-use-these-new-instructions/).
 - Whenever heavy 256-bit or wider instructions are used. Heavy instructions are those involving floating point operations or integer multiplications (since these execute on the floating point unit).

-The simdjson library does not currently support AVX-512 instructions and it does not make use of heavy 256-bit instructions. We do use vectorized multiplications, but only using 128-bit registers. Thus there should be no downclocking due to simdjson on recent processors.
+The simdjson library does not make use of heavy 256-bit instructions. We do use vectorized multiplications, but only using 128-bit registers. Thus there should be no downclocking due to simdjson on recent processors, except when AVX-512 is allowed and
+detected. However, we only allow AVX-512 on recent processors (Ice Lake/Tiger Lake or better) where [little to no frequency throttling is expected](https://travisdowns.github.io/blog/2020/08/19/icl-avx512-freq.html). If you can still concerned, you can easily disable AVX-512 with the CMake option `SIMDJSON_AVX512_ALLOWED` set to `OFF` (e.g., `cmake -D SIMDJSON_AVX512_ALLOWED=OFF -B build && cmake --build build`) or by setting
+the macro `SIMDJSON_AVX512_ALLOWED` to `0` in C++ prior to importing the headers.

 You may still be worried about which SIMD instruction set is used by simdjson.  Thankfully,  [you can always determine and change which architecture-specific implementation is used](implementation-selection.md) by simdjson. Thus even if your CPU supports AVX2, you do not need to use AVX2. You are in control.
@@ -1,7 +1,8 @@
+#include <iostream>
 #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;
-}
+}
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "simdjson.h"

 int main(void) {
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "simdjson.h"

 int main(void) {
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "simdjson.h"

 int main(void) {
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "simdjson.h"
 using namespace simdjson;
 int main(void) {
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "simdjson.h"
 using namespace simdjson;
 int main(void) {
@@ -18,7 +18,7 @@ The fuzzers are used in several ways.
 * oss-fuzz - heavy duty 24/7 fuzzing provided by the google driven oss-fuzz project

 ## Local fuzzing
-Just invoke fuzz/quick_check.sh, it will download the latest corpus from bintray (kept up to date by the CI fuzzers) and run the fuzzers for a short time. In case you want to run the fuzzers for longer, modify the timeout value in the script or invoke the fuzzer directly.
+Just invoke fuzz/quick_check.sh, it will download the latest corpus (kept up to date by the CI fuzzers) and run the fuzzers for a short time. In case you want to run the fuzzers for longer, modify the timeout value in the script or invoke the fuzzer directly.

 This requires linux with clang and cmake installed (recent Debian and Ubuntu are known to work fine).

@@ -69,7 +69,7 @@ As little code as possible is kept at oss-fuzz since it is inconvenient to chang

 The simdjson library does not benefit from a corpus as much as other projects, because the library is very fast and explores the input space very well. With that said, it is still beneficial to have one. The CI job stores the corpus on a remote server between runs, and is available at [www.pauldreik.se](https://readonly:readonly@www.pauldreik.se/fuzzdata/index.php?project=simdjson).

-One can also grab the corpus as an artifact from the github actions job. Pick a run, then go to artifacts and download.
+One can also grab the corpus as an artifact from the github actions job if you are logged in at github. Pick a run, then go to artifacts and download.

 ## Fuzzing coverage

@@ -11,6 +11,7 @@
 #include <cstddef>
 #include <cstdint>
 #include <cstdlib>
+#include <iostream>
 #include <string>
 #include <array>
 #include "supported_implementations.h"
@@ -92,7 +93,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
    std::size_t nerrors=0;
    for(std::size_t i=0; i<Nimplementations; ++i) {
        auto& e=implementations[i];
-        simdjson::active_implementation=e.impl;
+        simdjson::get_active_implementation()=e.impl;
        e.error=e.parser.parse(Data,Size).get(e.element);
        if(e.error) {
            ++nerrors;
@@ -12,6 +12,7 @@
 #include "simdjson.h"
 #include <cstddef>
 #include <cstdlib>
+#include <iostream>
 #include <vector>
 #include "supported_implementations.h"

@@ -8,24 +8,26 @@

 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  FuzzData fd(Data, Size);
-  const auto batch_size=static_cast<size_t>(fd.getInt<0,1000>());
-  const auto json=simdjson::padded_string{fd.remainder_as_stringview()};
+  const auto batch_size = static_cast<size_t>(fd.getInt<0,1000>());
+  const auto json = simdjson::padded_string{fd.remainder_as_stringview()};
  simdjson::dom::parser parser;
-#if SIMDJSON_EXCEPTIONS
-  try {
-#endif
-    simdjson::dom::document_stream docs;
-    if(parser.parse_many(json,batch_size).get(docs)) {
-      return 0;
-    }
-
-  size_t bool_count=0;
+  simdjson::dom::document_stream docs;
+  if(parser.parse_many(json,batch_size).get(docs)) { return 0; }
+  size_t bool_count1 = 0;
+  size_t total_count1 = 0;
  for (auto doc : docs) {
-    bool_count+=doc.is_bool();
+    total_count1++;
+    bool_count1 += doc.is_bool();
  }
-#if SIMDJSON_EXCEPTIONS
-  } catch(...) {
+  // Restart, if we made it this far, the document *must* be accessible.
+  if(parser.parse_many(json,batch_size).get(docs)) { return EXIT_FAILURE; }
+  size_t bool_count2 = 0;
+  size_t total_count2 = 0;
+  for (auto doc : docs) {
+    total_count2++;
+    bool_count2 += doc.is_bool();
  }
-#endif
+  // They should agree!!!
+  if((total_count2 != total_count1) || (bool_count2 != bool_count1)) { return EXIT_FAILURE; }
  return 0;
 }
@@ -10,6 +10,7 @@
 #include "simdjson.h"
 #include <cstddef>
 #include <cstdlib>
+#include <iostream>
 #include "supported_implementations.h"

 extern "C" int VerboseTestOneInput(const uint8_t *Data, size_t Size) {
@@ -4,7 +4,7 @@
 # good when working locally developing the fuzzers or making
 # sure code changes still pass the fuzzers.
 #
-# It will download the corpus from bintray (kept up to date
+# It will download the corpus from external store (kept up to date
 # by the crontab github actions) unless a local out/ directory
 # already exists.
 #
@@ -23,10 +23,9 @@ done

 #download the corpus if it does not already exist
 if [ ! -d out ] ; then
-  # ideally, we would download the github artifact but that requires being logged in which can not
-  # easily be fixed from this shell script.
-  echo "NOTE! please go to the artifacts page on https://github.com/simdjson/simdjson/actions/workflows/fuzzers.yml and download the latest corpus.tar.zip artifact manually to speed up fuzzing"
-  sleep 5s
+  # the corpus is also available for download from the artifacts page on https://github.com/simdjson/simdjson/actions/workflows/fuzzers.yml
+  # but that requires being logged in so can not be easily done from this script.
+  wget -O - https://readonly:readonly@www.pauldreik.se/fuzzdata/index.php?project=simdjson |tar xzf -
 fi

 # By default, use the debug friendly variant since this script is intended
@@ -17,7 +17,7 @@
 std::vector<const simdjson::implementation*>
 get_runtime_supported_implementations() {
    std::vector<const simdjson::implementation*> ret;
-    for(auto& e: simdjson::available_implementations) {
+    for(auto& e: simdjson::get_available_implementations()) {
        if(e->supported_by_runtime_system()) {
            ret.emplace_back(e);
        }
@@ -34,6 +34,7 @@
    }
 */

+#include "simdjson/simdjson_version.h"
 #include "simdjson/dom.h"
 #include "simdjson/builtin.h"

@@ -8,7 +8,7 @@ namespace {
 // We sometimes call trailing_zero on inputs that are zero,
 // but the algorithms do not end up using the returned value.
 // Sadly, sanitizers are not smart enough to figure it out.
-NO_SANITIZE_UNDEFINED
+SIMDJSON_NO_SANITIZE_UNDEFINED
 simdjson_really_inline int trailing_zeroes(uint64_t input_num) {
 #ifdef SIMDJSON_REGULAR_VISUAL_STUDIO
  unsigned long ret;
@@ -73,7 +73,7 @@ simdjson_really_inline uint64_t reverse_bits(uint64_t input_num) {
 * greating or equal to 63 in which case we trigger undefined behavior, but the output
 * of such undefined behavior is never used.
 **/
-NO_SANITIZE_UNDEFINED
+SIMDJSON_NO_SANITIZE_UNDEFINED
 simdjson_really_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) {
  return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes);
 }
@@ -5,6 +5,7 @@ namespace simdjson {
 namespace SIMDJSON_IMPLEMENTATION {
 namespace {

+// we don't have SSE, so let us use a scalar function
 // credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/
 static simdjson_really_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) {
  uint64_t val;
@@ -57,6 +57,19 @@ simdjson_really_inline uint8x16_t make_uint8x16_t(uint8_t x1,  uint8_t x2,  uint
  return x;
 }

+simdjson_really_inline uint8x8_t make_uint8x8_t(uint8_t x1,  uint8_t x2,  uint8_t x3,  uint8_t x4,
+                                         uint8_t x5,  uint8_t x6,  uint8_t x7,  uint8_t x8) {
+  uint8x8_t x{};
+  x = vset_lane_u8(x1, x, 0);
+  x = vset_lane_u8(x2, x, 1);
+  x = vset_lane_u8(x3, x, 2);
+  x = vset_lane_u8(x4, x, 3);
+  x = vset_lane_u8(x5, x, 4);
+  x = vset_lane_u8(x6, x, 5);
+  x = vset_lane_u8(x7, x, 6);
+  x = vset_lane_u8(x8, x, 7);
+  return x;
+}

 // We have to do the same work for make_int8x16_t
 simdjson_really_inline int8x16_t make_int8x16_t(int8_t x1,  int8_t x2,  int8_t x3,  int8_t x4,
@@ -119,7 +132,7 @@ simdjson_really_inline int8x16_t make_int8x16_t(int8_t x1,  int8_t x2,  int8_t x
    simdjson_really_inline simd8<T>& operator&=(const simd8<T> other) { auto this_cast = static_cast<simd8<T>*>(this); *this_cast = *this_cast & other; return *this_cast; }
    simdjson_really_inline simd8<T>& operator^=(const simd8<T> other) { auto this_cast = static_cast<simd8<T>*>(this); *this_cast = *this_cast ^ other; return *this_cast; }

-    simdjson_really_inline Mask operator==(const simd8<T> other) const { return vceqq_u8(*this, other); }
+    friend simdjson_really_inline Mask operator==(const simd8<T> lhs, const simd8<T> rhs) { return vceqq_u8(lhs, rhs); }

    template<int N=1>
    simdjson_really_inline simd8<T> prev(const simd8<T> prev_chunk) const {
@@ -289,6 +302,27 @@ simdjson_really_inline int8x16_t make_int8x16_t(int8_t x1,  int8_t x2,  int8_t x
      vst1q_u8(reinterpret_cast<uint8_t*>(output), answer);
    }

+    // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a
+    // bitset) to output1, then those corresponding to a 0 in the high half to output2.
+    template<typename L>
+    simdjson_really_inline void compress_halves(uint16_t mask, L *output1, L *output2) const {
+      using internal::thintable_epi8;
+      uint8_t mask1 = uint8_t(mask); // least significant 8 bits
+      uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits
+      uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]);
+      uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]);
+      // we increment by 0x08 the second half of the mask
+#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO
+      uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08);
+#else
+      uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08};
+#endif
+      compactmask2 = vadd_u8(compactmask2, inc);
+      // store each result (with the second store possibly overlapping the first)
+      vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1));
+      vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2));
+    }
+
    template<typename L>
    simdjson_really_inline simd8<L> lookup_16(
        L replace0,  L replace1,  L replace2,  L replace3,
@@ -439,11 +473,15 @@ simdjson_really_inline int8x16_t make_int8x16_t(int8_t x1,  int8_t x2,  int8_t x
    }


-    simdjson_really_inline void compress(uint64_t mask, T * output) const {
-      this->chunks[0].compress(uint16_t(mask), output);
-      this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF));
-      this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF));
-      this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF));
+    simdjson_really_inline uint64_t compress(uint64_t mask, T * output) const {
+      uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0);
+      // compute the prefix sum of the popcounts of each byte
+      uint64_t offsets = popcounts * 0x0101010101010101;
+      this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]);
+      this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]);
+      this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]);
+      this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]);
+      return offsets >> 56;
    }

    simdjson_really_inline uint64_t to_bitmask() const {
@@ -15,10 +15,7 @@ using namespace simd;
 struct backslash_and_quote {
 public:
  static constexpr uint32_t BYTES_PROCESSED = 32;
-  simdjson_really_inline static backslash_and_quote
-  copy_and_find(const uint8_t *src, uint8_t *dst, const uint8_t *last_full_buf);
-  simdjson_really_inline static backslash_and_quote
-  copy_and_find(const uint8_t *src, uint8_t *dst);
+  simdjson_really_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst);

  simdjson_really_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; }
  simdjson_really_inline bool has_backslash() { return bs_bits != 0; }
@@ -29,21 +26,10 @@ public:
  uint32_t quote_bits;
 }; // struct backslash_and_quote

-simdjson_really_inline backslash_and_quote
-backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst, const uint8_t *last_full_buf) {
-  // If we don't have enough memory left to load a whole simd register, copy it first.
-  uint8_t tmpbuf[BYTES_PROCESSED];
-  if (simdjson_unlikely(src > last_full_buf)) {
-    SIMDJSON_ASSUME(last_full_buf+BYTES_PROCESSED > src);
-    std::memset(tmpbuf, 0, BYTES_PROCESSED);
-    std::memcpy(tmpbuf, src, last_full_buf+BYTES_PROCESSED-src);
-    src = tmpbuf;
-  }
-  return copy_and_find(src, dst);
-}
-
-simdjson_really_inline backslash_and_quote
-backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) {
+simdjson_really_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) {
+  // this can read up to 31 bytes beyond the buffer size, but we require
+  // SIMDJSON_PADDING of padding
+  static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes");
  simd8<uint8_t> v0(src);
  simd8<uint8_t> v1(src + sizeof(v0));
  v0.store(dst);
@@ -5,7 +5,9 @@

 // Determine the best builtin implementation
 #ifndef SIMDJSON_BUILTIN_IMPLEMENTATION
-#if SIMDJSON_CAN_ALWAYS_RUN_HASWELL
+#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE
+#define SIMDJSON_BUILTIN_IMPLEMENTATION icelake
+#elif SIMDJSON_CAN_ALWAYS_RUN_HASWELL
 #define SIMDJSON_BUILTIN_IMPLEMENTATION haswell
 #elif SIMDJSON_CAN_ALWAYS_RUN_WESTMERE
 #define SIMDJSON_BUILTIN_IMPLEMENTATION westmere
@@ -35,7 +35,12 @@ double from_chars(const char *first, const char* end) noexcept;
 constexpr size_t SIMDJSON_MAXSIZE_BYTES = 0xFFFFFFFF;

 /**
- * Padding requirement.
+ * The amount of padding needed in a buffer to parse JSON.
+ *
+ * the input buf should be readable up to buf + SIMDJSON_PADDING
+ * this is a stopgap; there should be a better description of the
+ * main loop and its behavior that abstracts over this
+ * See https://github.com/simdjson/simdjson/issues/174
 */
 constexpr size_t SIMDJSON_PADDING = 32;

@@ -66,12 +71,8 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024;
 #define SIMDJSON_ISALIGNED_N(ptr, n) (((uintptr_t)(ptr) & ((n)-1)) == 0)

 #if defined(SIMDJSON_REGULAR_VISUAL_STUDIO)
-  #if SIMDJSON_NO_FORCE_INLINING
-  // forcing inlining can increase stack usage.
-  #define simdjson_really_inline inline
-  #else
+
  #define simdjson_really_inline __forceinline
-  #endif
  #define simdjson_never_inline __declspec(noinline)

  #define simdjson_unused
@@ -105,12 +106,8 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024;
  #define SIMDJSON_POP_DISABLE_WARNINGS __pragma(warning( pop ))

 #else // SIMDJSON_REGULAR_VISUAL_STUDIO
-  #if SIMDJSON_NO_FORCE_INLINING
-  // forcing inlining can increase stack usage.
-  #define simdjson_really_inline inline
-  #else
+
  #define simdjson_really_inline inline __attribute__((always_inline))
-  #endif
  #define simdjson_never_inline inline __attribute__((noinline))

  #define simdjson_unused __attribute__((unused))
@@ -125,6 +122,9 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024;

  #define SIMDJSON_PUSH_DISABLE_WARNINGS _Pragma("GCC diagnostic push")
  // gcc doesn't seem to disable all warnings with all and extra, add warnings here as necessary
+  // We do it separately for clang since it has different warnings.
+  #ifdef __clang__
+  // clang is missing -Wmaybe-uninitialized.
  #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \
    SIMDJSON_DISABLE_GCC_WARNING(-Weffc++) \
    SIMDJSON_DISABLE_GCC_WARNING(-Wall) \
@@ -137,6 +137,22 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024;
    SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \
    SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \
    SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable)
+  #else // __clang__
+  #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \
+    SIMDJSON_DISABLE_GCC_WARNING(-Weffc++) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wall) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wconversion) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wextra) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wattributes) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wimplicit-fallthrough) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wnon-virtual-dtor) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wreturn-type) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable) \
+    SIMDJSON_DISABLE_GCC_WARNING(-Wmaybe-uninitialized)
+  #endif // __clang__
+
  #define SIMDJSON_PRAGMA(P) _Pragma(#P)
  #define SIMDJSON_DISABLE_GCC_WARNING(WARNING) SIMDJSON_PRAGMA(GCC diagnostic ignored #WARNING)
  #if defined(SIMDJSON_CLANG_VISUAL_STUDIO)
@@ -257,15 +273,7 @@ namespace std {
 #endif

 // The SIMDJSON_CHECK_EOF macro is a feature flag for the "don't require padding"
-// feature in the On Demand API.
-// When we have padding, we do not need to check for the end of the input buffer.
-// However, without padding, it is unsafe not to have end-of-buffer checks.
-// Thus this SIMDJSON_CHECK_EOF should be set to true (1) for safety as it activates
-// several safety checks. We still allow expert users to disable it.
-// Note that this only affects the On Demand API.
-#ifndef SIMDJSON_CHECK_EOF
-# define SIMDJSON_CHECK_EOF 1
-#endif
+// feature.

 #if SIMDJSON_CPLUSPLUS17
 // if we have C++, then fallthrough is a default attribute
@@ -278,7 +286,6 @@ namespace std {
 # define simdjson_fallthrough                    __attribute__((__fallthrough__))
 #endif // __has_attribute(__fallthrough__)
 #endif // SIMDJSON_CPLUSPLUS17
-
 // on some systems, we simply do not have support for fallthrough, so use a default:
 #ifndef simdjson_fallthrough
 # define simdjson_fallthrough do {} while (0)  /* fallthrough */
@@ -256,6 +256,7 @@ inline size_t document_stream::size_in_bytes() const noexcept {
 }

 inline size_t document_stream::truncated_bytes() const noexcept {
+  if(error == CAPACITY) { return len - batch_start; }
  return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1];
 }

@@ -5,7 +5,7 @@

 #include <cstring>
 #include <string>
-#include <iostream>
+#include <ostream>
 #include <iterator>
 #include <limits>
 #include <stdexcept>
@@ -100,8 +100,7 @@ inline simdjson_result<element> parser::parse_into_document(document& provided_d
  // Important: It is possible that provided_doc is actually the internal 'doc' within the parser!!!
  error_code _error = ensure_capacity(provided_doc, len);
  if (_error) { return _error; }
-  (void)realloc_if_needed;
-  /*if (realloc_if_needed) {
+  if (realloc_if_needed) {
    // Make sure we have enough capacity to copy len bytes
    if (!loaded_bytes || _loaded_bytes_capacity < len) {
      loaded_bytes.reset( internal::allocate_padded_buffer(len) );
@@ -113,8 +112,6 @@ inline simdjson_result<element> parser::parse_into_document(document& provided_d
    std::memcpy(static_cast<void *>(loaded_bytes.get()), buf, len);
  }
  _error = implementation->parse(realloc_if_needed ? reinterpret_cast<const uint8_t*>(loaded_bytes.get()): buf, len, provided_doc);
-  */
- _error = implementation->parse(buf, len, provided_doc);

  if (_error) { return _error; }

@@ -125,16 +122,8 @@ simdjson_really_inline simdjson_result<element> parser::parse_into_document(docu
  return parse_into_document(provided_doc, reinterpret_cast<const uint8_t *>(buf), len, realloc_if_needed);
 }
 simdjson_really_inline simdjson_result<element> parser::parse_into_document(document& provided_doc, const std::string &s) & noexcept {
-  return parse_into_document(provided_doc, s.data(), s.length());
+  return parse_into_document(provided_doc, s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING);
 }
-simdjson_really_inline simdjson_result<element> parser::parse_into_document(document& provided_doc, std::string&& s) & noexcept {
-  std::string local_string(s);
-  return parse_into_document(provided_doc, local_string.data(), local_string.length());
-}
-simdjson_really_inline simdjson_result<element> parser::parse_into_document(document& provided_doc, std::string_view s) & noexcept {
-  return parse_into_document(provided_doc, s.data(), s.length());
-}
-
 simdjson_really_inline simdjson_result<element> parser::parse_into_document(document& provided_doc, const padded_string &s) & noexcept {
  return parse_into_document(provided_doc, s.data(), s.length(), false);
 }
@@ -148,14 +137,7 @@ simdjson_really_inline simdjson_result<element> parser::parse(const char *buf, s
  return parse(reinterpret_cast<const uint8_t *>(buf), len, realloc_if_needed);
 }
 simdjson_really_inline simdjson_result<element> parser::parse(const std::string &s) & noexcept {
-  return parse(s.data(), s.length());
-}
-simdjson_really_inline simdjson_result<element> parser::parse(std::string &&s) & noexcept {
-  std::string local_string(s);
-  return parse(local_string.data(), local_string.length());
-}
-simdjson_really_inline simdjson_result<element> parser::parse(std::string_view s) & noexcept {
-  return parse(s.data(), s.length());
+  return parse(s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING);
 }
 simdjson_really_inline simdjson_result<element> parser::parse(const padded_string &s) & noexcept {
  return parse(s.data(), s.length(), false);
@@ -171,9 +153,6 @@ inline simdjson_result<document_stream> parser::parse_many(const char *buf, size
 inline simdjson_result<document_stream> parser::parse_many(const std::string &s, size_t batch_size) noexcept {
  return parse_many(s.data(), s.length(), batch_size);
 }
-inline simdjson_result<document_stream> parser::parse_many(const std::string_view s, size_t batch_size) noexcept {
-  return parse_many(s.data(), s.length(), batch_size);
-}
 inline simdjson_result<document_stream> parser::parse_many(const padded_string &s, size_t batch_size) noexcept {
  return parse_many(s.data(), s.length(), batch_size);
 }
@@ -197,7 +176,7 @@ inline error_code parser::allocate(size_t capacity, size_t max_depth) noexcept {
  if (implementation) {
    err = implementation->allocate(capacity, max_depth);
  } else {
-    err = simdjson::active_implementation->create_dom_parser_implementation(capacity, max_depth, implementation);
+    err = simdjson::get_active_implementation()->create_dom_parser_implementation(capacity, max_depth, implementation);
  }
  if (err) { return err; }
  return SUCCESS;
@@ -142,43 +142,63 @@ public:
   * the parser instance without moving it by wrapping it inside an `unique_ptr` instance like
   * so: `std::unique_ptr<dom::parser> parser(new dom::parser{});`.
   *
-   * ### Buffer Padding
+   * ### REQUIRED: Buffer Padding
   *
-   * We do not require that the input buffer be padded, but for backward compatibility, we have
-   * a realloc_if_needed parameter with a default value. It can be ignored.
+   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
+   * those bytes are initialized to, as long as they are allocated.
+   *
+   * If realloc_if_needed is true (the default), it is assumed that the buffer does *not* have enough padding,
+   * and it is copied into an enlarged temporary buffer before parsing. Thus the following is safe:
+   *
+   *   const char *json      = R"({"key":"value"})";
+   *   const size_t json_len = std::strlen(json);
+   *   simdjson::dom::parser parser;
+   *   simdjson::dom::element element = parser.parse(json, json_len);
+   *
+   * If you set realloc_if_needed to false (e.g., parser.parse(json, json_len, false)),
+   * you must provide a buffer with at least SIMDJSON_PADDING extra bytes at the end.
+   * The benefit of setting realloc_if_needed to false is that you avoid a temporary
+   * memory allocation and a copy.
+   *
+   * The padded bytes may be read. It is not important how you initialize
+   * these bytes though we recommend a sensible default like null character values or spaces.
+   * For example, the following low-level code is safe:
+   *
+   *   const char *json      = R"({"key":"value"})";
+   *   const size_t json_len = std::strlen(json);
+   *   std::unique_ptr<char[]> padded_json_copy{new char[json_len + SIMDJSON_PADDING]};
+   *   std::memcpy(padded_json_copy.get(), json, json_len);
+   *   std::memset(padded_json_copy.get() + json_len, '\0', SIMDJSON_PADDING);
+   *   simdjson::dom::parser parser;
+   *   simdjson::dom::element element = parser.parse(padded_json_copy.get(), json_len, false);
   *
   * ### Parser Capacity
   *
   * If the parser's current capacity is less than len, it will allocate enough capacity
   * to handle it (up to max_capacity).
   *
-   * @param buf The JSON to parse.
+   * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless
+   *            realloc_if_needed is true.
   * @param len The length of the JSON.
-   * @param realloc_if_needed this parameter is left in place for backward compatibility, it can be ignored (defaults to false)
+   * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding.
   * @return An element pointing at the root of the document, or an error:
-   *         - MEMALLOC if the parser does not have enough capacity,
+   *         - MEMALLOC if realloc_if_needed is true or the parser does not have enough capacity,
   *           and memory allocation fails.
   *         - CAPACITY if the parser does not have enough capacity and len > max_capacity.
   *         - other json errors if parsing fails. You should not rely on these errors to always the same for the
   *           same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware).
   */
-  inline simdjson_result<element> parse(const uint8_t *buf, size_t len, bool realloc_if_needed = false) & noexcept;
-  inline simdjson_result<element> parse(const uint8_t *buf, size_t len, bool realloc_if_needed = false) && =delete;
+  inline simdjson_result<element> parse(const uint8_t *buf, size_t len, bool realloc_if_needed = true) & noexcept;
+  inline simdjson_result<element> parse(const uint8_t *buf, size_t len, bool realloc_if_needed = true) && =delete;
  /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */
-  simdjson_really_inline simdjson_result<element> parse(const char *buf, size_t len, bool realloc_if_needed = false) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse(const char *buf, size_t len, bool realloc_if_needed = false) && =delete;
+  simdjson_really_inline simdjson_result<element> parse(const char *buf, size_t len, bool realloc_if_needed = true) & noexcept;
+  simdjson_really_inline simdjson_result<element> parse(const char *buf, size_t len, bool realloc_if_needed = true) && =delete;
  /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */
-  simdjson_really_inline simdjson_result<element> parse(std::string_view s) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse(std::string_view s) && = delete;
  simdjson_really_inline simdjson_result<element> parse(const std::string &s) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse(const std::string &s) && = delete;
-  simdjson_really_inline simdjson_result<element> parse(std::string &&s) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse(std::string &&s) && = delete;
-
+  simdjson_really_inline simdjson_result<element> parse(const std::string &s) && =delete;
  /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */
  simdjson_really_inline simdjson_result<element> parse(const padded_string &s) & noexcept;
  simdjson_really_inline simdjson_result<element> parse(const padded_string &s) && =delete;
-  simdjson_really_inline simdjson_result<element> parse(const padded_string &&s) = delete;

  /** @private We do not want to allow implicit conversion from C string to std::string. */
  simdjson_really_inline simdjson_result<element> parse(const char *buf) noexcept = delete;
@@ -216,28 +236,25 @@ public:
   * moving a document, you can recover safe access to the document root with its `root()` method.
   *
   * @param doc The document instance where the parsed data will be stored (on success).
-   * @param buf The JSON to parse.
+   * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless
+   *            realloc_if_needed is true.
   * @param len The length of the JSON.
-   * @param realloc_if_needed this parameter is left in place for backward compatibility, it can be ignored (defaults to false)
+   * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding.
   * @return An element pointing at the root of document, or an error:
-   *         - MEMALLOC if the parser does not have enough capacity,
+   *         - MEMALLOC if realloc_if_needed is true or the parser does not have enough capacity,
   *           and memory allocation fails.
   *         - CAPACITY if the parser does not have enough capacity and len > max_capacity.
   *         - other json errors if parsing fails. You should not rely on these errors to always the same for the
   *           same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware).
   */
-  inline simdjson_result<element> parse_into_document(document& doc, const uint8_t *buf, size_t len, bool realloc_if_needed = false) & noexcept;
-  inline simdjson_result<element> parse_into_document(document& doc, const uint8_t *buf, size_t len, bool realloc_if_needed = false) && =delete;
+  inline simdjson_result<element> parse_into_document(document& doc, const uint8_t *buf, size_t len, bool realloc_if_needed = true) & noexcept;
+  inline simdjson_result<element> parse_into_document(document& doc, const uint8_t *buf, size_t len, bool realloc_if_needed = true) && =delete;
  /** @overload parse_into_document(const uint8_t *buf, size_t len, bool realloc_if_needed) */
-  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const char *buf, size_t len, bool realloc_if_needed = false) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const char *buf, size_t len, bool realloc_if_needed = false) && =delete;
+  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const char *buf, size_t len, bool realloc_if_needed = true) & noexcept;
+  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const char *buf, size_t len, bool realloc_if_needed = true) && =delete;
  /** @overload parse_into_document(const uint8_t *buf, size_t len, bool realloc_if_needed) */
  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const std::string &s) & noexcept;
  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const std::string &s) && =delete;
-  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, std::string &&s) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, std::string &&s) && =delete;
-  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, std::string_view s) & noexcept;
-  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, std::string_view s) && =delete;
  /** @overload parse_into_document(const uint8_t *buf, size_t len, bool realloc_if_needed) */
  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const padded_string &s) & noexcept;
  simdjson_really_inline simdjson_result<element> parse_into_document(document& doc, const padded_string &s) && =delete;
@@ -385,6 +402,10 @@ public:
   *     cout << title << endl;
   *   }
   *
+   * ### REQUIRED: Buffer Padding
+   *
+   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
+   * those bytes are initialized to, as long as they are allocated.
   *
   * ### Threads
   *
@@ -396,7 +417,7 @@ public:
   * If the parser's current capacity is less than batch_size, it will allocate enough capacity
   * to handle it (up to max_capacity).
   *
-   * @param buf The concatenated JSON to parse.
+   * @param buf The concatenated JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes.
   * @param len The length of the concatenated JSON.
   * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet
   *                   spot is cache-related: small enough to fit in cache, yet big enough to
@@ -413,11 +434,10 @@ public:
  inline simdjson_result<document_stream> parse_many(const char *buf, size_t len, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept;
  /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */
  inline simdjson_result<document_stream> parse_many(const std::string &s, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept;
-  inline simdjson_result<document_stream> parse_many(const std::string_view s, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept;
-  inline simdjson_result<document_stream> parse_many(std::string &&s, size_t batch_size) = delete;// unsafe
+  inline simdjson_result<document_stream> parse_many(const std::string &&s, size_t batch_size) = delete;// unsafe
  /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */
  inline simdjson_result<document_stream> parse_many(const padded_string &s, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept;
-  inline simdjson_result<document_stream> parse_many(padded_string &&s, size_t batch_size) = delete;// unsafe
+  inline simdjson_result<document_stream> parse_many(const padded_string &&s, size_t batch_size) = delete;// unsafe

  /** @private We do not want to allow implicit conversion from C string to std::string. */
  simdjson_result<document_stream> parse_many(const char *buf, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept = delete;
@@ -157,7 +157,10 @@ simdjson_really_inline void mini_formatter::string(std::string_view unescaped) {
  size_t i = 0;
  // Fast path for the case where we have no control character, no ", and no backslash.
  // This should include most keys.
-  constexpr static bool needs_escaping[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  //
+  // We would like to use 'bool' but some compilers take offense to bitwise operation
+  // with bool types.
+  constexpr static char needs_escaping[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
@@ -169,6 +172,8 @@ simdjson_really_inline void mini_formatter::string(std::string_view unescaped) {
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
  for(;i + 8 <= unescaped.length(); i += 8) {
    // Poor's man vectorization. This could get much faster if we used SIMD.
+    //
+    // It is not the case that replacing '|' with '||' would be neutral performance-wise.
    if(needs_escaping[uint8_t(unescaped[i])] | needs_escaping[uint8_t(unescaped[i+1])]
      | needs_escaping[uint8_t(unescaped[i+2])] | needs_escaping[uint8_t(unescaped[i+3])]
      | needs_escaping[uint8_t(unescaped[i+4])] | needs_escaping[uint8_t(unescaped[i+5])]
@@ -7,7 +7,12 @@
 namespace simdjson {

 /**
- * All possible errors returned by simdjson.
+ * All possible errors returned by simdjson. These error codes are subject to change
+ * and not all simdjson kernel returns the same error code given the same input: it is not
+ * well defined which error a given input should produce.
+ *
+ * Only SUCCESS evaluates to false as a Boolean. All other error codes will evaluate
+ * to true as a Boolean.
 */
 enum error_code {
  SUCCESS = 0,                ///< No error
@@ -38,6 +43,8 @@ enum error_code {
  OUT_OF_ORDER_ITERATION,     ///< tried to iterate an array or object out of order
  INSUFFICIENT_PADDING,       ///< The JSON doesn't have enough padding for simdjson to safely parse it.
  INCOMPLETE_ARRAY_OR_OBJECT, ///< The document ends early.
+  SCALAR_DOCUMENT_AS_VALUE,   ///< A scalar document is treated as a value.
+  OUT_OF_BOUNDS,              ///< Attempted to access location outside of document.
  NUM_ERROR_CODES
 };

@@ -287,7 +294,7 @@ struct simdjson_result : public internal::simdjson_result_base<T> {
 #if SIMDJSON_EXCEPTIONS

 template<typename T>
-inline std::ostream& operator<<(std::ostream& out, simdjson_result<T> value) noexcept { return out << value.value(); }
+inline std::ostream& operator<<(std::ostream& out, simdjson_result<T> value) { return out << value.value(); }
 #endif // SIMDJSON_EXCEPTIONS

 #ifndef SIMDJSON_DISABLE_DEPRECATED_API
@@ -28,6 +28,7 @@ static simdjson_really_inline uint32_t parse_eight_digits_unrolled(const uint8_t
 } // namespace simdjson

 #define SIMDJSON_SWAR_NUMBER_PARSING 1
+
 #include "simdjson/generic/numberparsing.h"

 #endif // SIMDJSON_FALLBACK_NUMBERPARSING_H
@@ -11,10 +11,7 @@ namespace {
 struct backslash_and_quote {
 public:
  static constexpr uint32_t BYTES_PROCESSED = 1;
-  simdjson_really_inline static backslash_and_quote
-  copy_and_find(const uint8_t *src, uint8_t *dst, const uint8_t *last_full_buf);
-  simdjson_really_inline static backslash_and_quote
-  copy_and_find(const uint8_t *src, uint8_t *dst);
+  simdjson_really_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst);

  simdjson_really_inline bool has_quote_first() { return c == '"'; }
  simdjson_really_inline bool has_backslash() { return c == '\\'; }
@@ -24,10 +21,6 @@ public:
  uint8_t c;
 }; // struct backslash_and_quote

-simdjson_really_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst, const uint8_t *) {
-  return copy_and_find(src, dst);
-}
-
 simdjson_really_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) {
  // store to dest unconditionally - we can overwrite the bits we don't like later
  dst[0] = src[0];
@@ -15,50 +15,47 @@ simdjson_really_inline uint32_t string_to_uint32(const char* str) { uint32_t val

 // Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive.
 // Yet all decent optimizing compilers will compile memcpy to a single instruction, just about.
-// It is unsafe because you must ensure that you have at least 4 characters before calling this function!
 simdjson_warn_unused
-simdjson_really_inline uint32_t str4ncmp_unsafe(const uint8_t *src, const char* atom) {
+simdjson_really_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) {
  uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++)
+  static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes");
  std::memcpy(&srcval, src, sizeof(uint32_t));
  return srcval ^ string_to_uint32(atom);
 }

-// It is unsafe because you must ensure that you have at least 5 characters before calling this function!
 simdjson_warn_unused
-simdjson_really_inline bool is_valid_true_atom_unsafe(const uint8_t *src) {
-  return (str4ncmp_unsafe(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0;
+simdjson_really_inline bool is_valid_true_atom(const uint8_t *src) {
+  return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0;
 }

 simdjson_warn_unused
 simdjson_really_inline bool is_valid_true_atom(const uint8_t *src, size_t len) {
-  if (len > 4) { return is_valid_true_atom_unsafe(src); }
-  else if (len == 4) { return !str4ncmp_unsafe(src, "true"); }
+  if (len > 4) { return is_valid_true_atom(src); }
+  else if (len == 4) { return !str4ncmp(src, "true"); }
  else { return false; }
 }

-// It is unsafe because you must ensure that you have at least 5 characters before calling this function!
 simdjson_warn_unused
-simdjson_really_inline bool is_valid_false_atom_unsafe(const uint8_t *src) {
-  return (str4ncmp_unsafe(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0;
+simdjson_really_inline bool is_valid_false_atom(const uint8_t *src) {
+  return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0;
 }

 simdjson_warn_unused
 simdjson_really_inline bool is_valid_false_atom(const uint8_t *src, size_t len) {
-  if (len > 5) { return is_valid_false_atom_unsafe(src); }
-  else if (len == 5) { return !str4ncmp_unsafe(src+1, "alse"); }
+  if (len > 5) { return is_valid_false_atom(src); }
+  else if (len == 5) { return !str4ncmp(src+1, "alse"); }
  else { return false; }
 }

-// It is unsafe because you must ensure that you have at least 5 characters before calling this function!
 simdjson_warn_unused
-simdjson_really_inline bool is_valid_null_atom_unsafe(const uint8_t *src) {
-  return (str4ncmp_unsafe(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0;
+simdjson_really_inline bool is_valid_null_atom(const uint8_t *src) {
+  return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0;
 }

 simdjson_warn_unused
 simdjson_really_inline bool is_valid_null_atom(const uint8_t *src, size_t len) {
-  if (len > 4) { return is_valid_null_atom_unsafe(src); }
-  else if (len == 4) { return !str4ncmp_unsafe(src, "null"); }
+  if (len > 4) { return is_valid_null_atom(src); }
+  else if (len == 4) { return !str4ncmp(src, "null"); }
  else { return false; }
 }

@@ -4,8 +4,27 @@
 namespace simdjson {
 namespace SIMDJSON_IMPLEMENTATION {

+// expectation: sizeof(open_container) = 64/8.
+struct open_container {
+  uint32_t tape_index; // where, on the tape, does the scope ([,{) begins
+  uint32_t count; // how many elements in the scope
+}; // struct open_container
+
+static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits");
+
 class dom_parser_implementation final : public internal::dom_parser_implementation {
 public:
+  /** Tape location of each open { or [ */
+  std::unique_ptr<open_container[]> open_containers{};
+  /** Whether each open container is a [ or { */
+  std::unique_ptr<bool[]> is_array{};
+  /** Buffer passed to stage 1 */
+  const uint8_t *buf{};
+  /** Length passed to stage 1 */
+  size_t len{0};
+  /** Document passed to stage 2 */
+  dom::document *doc{};
+
  inline dom_parser_implementation() noexcept;
  inline dom_parser_implementation(dom_parser_implementation &&other) noexcept;
  inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept;
@@ -49,7 +68,7 @@ inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(s

 inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept {
  // Stage 2 stacks
-  open_containers.reset(new (std::nothrow) internal::open_container[max_depth]);
+  open_containers.reset(new (std::nothrow) open_container[max_depth]);
  is_array.reset(new (std::nothrow) bool[max_depth]);
  if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; }

@@ -49,18 +49,23 @@ simdjson_really_inline implementation_simdjson_result_base<T>::operator T&&() &&
  return std::forward<implementation_simdjson_result_base<T>>(*this).take_value();
 }

+#endif // SIMDJSON_EXCEPTIONS
+
 template<typename T>
 simdjson_really_inline const T& implementation_simdjson_result_base<T>::value_unsafe() const& noexcept {
  return this->first;
 }

+template<typename T>
+simdjson_really_inline T& implementation_simdjson_result_base<T>::value_unsafe() & noexcept {
+  return this->first;
+}
+
 template<typename T>
 simdjson_really_inline T&& implementation_simdjson_result_base<T>::value_unsafe() && noexcept {
  return std::forward<T>(this->first);
 }

-#endif // SIMDJSON_EXCEPTIONS
-
 template<typename T>
 simdjson_really_inline implementation_simdjson_result_base<T>::implementation_simdjson_result_base(T &&value, error_code error) noexcept
    : first{std::forward<T>(value)}, second{error} {}
@@ -97,22 +97,28 @@ struct implementation_simdjson_result_base {
   */
  simdjson_really_inline operator T&&() && noexcept(false);

+
+#endif // SIMDJSON_EXCEPTIONS
+
  /**
   * Get the result value. This function is safe if and only
   * the error() method returns a value that evaluates to false.
   */
  simdjson_really_inline const T& value_unsafe() const& noexcept;
-
+  /**
+   * Get the result value. This function is safe if and only
+   * the error() method returns a value that evaluates to false.
+   */
+  simdjson_really_inline T& value_unsafe() & noexcept;
  /**
   * Take the result value (move it). This function is safe if and only
   * the error() method returns a value that evaluates to false.
   */
  simdjson_really_inline T&& value_unsafe() && noexcept;
-
-#endif // SIMDJSON_EXCEPTIONS
-
-  T first{};
-  error_code second{UNINITIALIZED};
+protected:
+  /** users should never directly access first and second. **/
+  T first{}; /** Users should never directly access 'first'. **/
+  error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/
 }; // struct implementation_simdjson_result_base

 } // namespace SIMDJSON_IMPLEMENTATION
@@ -3,6 +3,18 @@

 namespace simdjson {
 namespace SIMDJSON_IMPLEMENTATION {
+
+namespace ondemand {
+/**
+ * The type of a JSON number
+ */
+enum class number_type {
+    floating_point_number=1, /// a binary64 number
+    signed_integer,          /// a signed integer that fits in a 64-bit word using two's complement
+    unsigned_integer         /// a positive integer larger or equal to 1<<63
+};
+}
+
 namespace {
 /// @private
 namespace numberparsing {
@@ -291,8 +303,8 @@ simdjson_really_inline bool compute_float_64(int64_t power, uint64_t i, bool neg
 // It will return an error (false) if the parsed number is infinite.
 // The string parsing itself always succeeds. We know that there is at least
 // one digit.
-bool parse_float_fallback(const uint8_t * const ptr, const uint8_t * const end, double *outDouble) {
-  *outDouble = simdjson::internal::from_chars(reinterpret_cast<const char *>(ptr), reinterpret_cast<const char *>(end));
+static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) {
+  *outDouble = simdjson::internal::from_chars(reinterpret_cast<const char *>(ptr));
  // We do not accept infinite values.

  // Detecting finite values in a portable manner is ridiculously hard, ideally
@@ -305,17 +317,29 @@ bool parse_float_fallback(const uint8_t * const ptr, const uint8_t * const end,
  // to handle that max may be a macro on windows).
  return !(*outDouble > (std::numeric_limits<double>::max)() || *outDouble < std::numeric_limits<double>::lowest());
 }
+static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) {
+  *outDouble = simdjson::internal::from_chars(reinterpret_cast<const char *>(ptr), reinterpret_cast<const char *>(end_ptr));
+  // We do not accept infinite values.
+
+  // Detecting finite values in a portable manner is ridiculously hard, ideally
+  // we would want to do:
+  // return !std::isfinite(*outDouble);
+  // but that mysteriously fails under legacy/old libc++ libraries, see
+  // https://github.com/simdjson/simdjson/issues/1286
+  //
+  // Therefore, fall back to this solution (the extra parens are there
+  // to handle that max may be a macro on windows).
+  return !(*outDouble > (std::numeric_limits<double>::max)() || *outDouble < std::numeric_limits<double>::lowest());
+}
+
 // check quickly whether the next 8 chars are made of digits
 // at a glance, it looks better than Mula's
 // http://0x80.pl/articles/swar-digits-validate.html
-simdjson_really_inline bool is_made_of_eight_digits_fast(const uint8_t * const chars, const uint8_t * const end) {
+simdjson_really_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) {
  uint64_t val;
-  // end == nullptr is forbidden here since we have SIMDJSON_SWAR_NUMBER_PARSING
-#ifndef SIMDJSON_SWAR_NUMBER_PARSING
-#warning "You should never call is_made_of_eight_digits_fast given that SIMDJSON_SWAR_NUMBER_PARSING is undefined."
-#endif
-  SIMDJSON_ASSUME(end != nullptr);
-  if ((end-chars) < 8) { return false; }
+  // this can read up to 7 bytes beyond the buffer size, but we require
+  // SIMDJSON_PADDING of padding
+  static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7");
  std::memcpy(&val, chars, 8);
  // a branchy method might be faster:
  // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030)
@@ -327,34 +351,19 @@ simdjson_really_inline bool is_made_of_eight_digits_fast(const uint8_t * const c
 }

 template<typename W>
-error_code slow_float_parsing(const uint8_t * src, W writer) {
+error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) {
  double d;
-  if (parse_float_fallback(src, nullptr, &d)) {
+  if (parse_float_fallback(src, &d)) {
    writer.append_double(d);
    return SUCCESS;
  }
  return INVALID_NUMBER(src);
 }

-template<typename W>
-error_code slow_float_parsing(const uint8_t * src, const uint8_t * const end, W writer) {
-  double d;
-  if (parse_float_fallback(src, end, &d)) {
-    writer.append_double(d);
-    return SUCCESS;
-  }
-  return INVALID_NUMBER(src);
-}
-
-simdjson_really_inline bool at_end(const uint8_t * const p, const uint8_t * const end) {
-  return end != nullptr && p >= end;
-}
-
 template<typename I>
-NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later
-simdjson_really_inline bool parse_digit(const uint8_t * const p, const uint8_t * const end, I &i) {
-  if (at_end(p, end)) { return false; }
-  const uint8_t digit = static_cast<uint8_t>(*p - '0');
+SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later
+simdjson_really_inline bool parse_digit(const uint8_t c, I &i) {
+  const uint8_t digit = static_cast<uint8_t>(c - '0');
  if (digit > 9) {
    return false;
  }
@@ -363,24 +372,26 @@ simdjson_really_inline bool parse_digit(const uint8_t * const p, const uint8_t *
  return true;
 }

-simdjson_really_inline error_code parse_decimal(simdjson_unused const uint8_t * const src, const uint8_t * const end, const uint8_t *&p, uint64_t &i, int64_t &exponent) {
+simdjson_really_inline error_code parse_decimal(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) {
  // we continue with the fiction that we have an integer. If the
  // floating point number is representable as x * 10^z for some integer
  // z that fits in 53 bits, then we will be able to convert back the
  // the integer into a float in a lossless manner.
-  const uint8_t * const first_after_period = p;
+  const uint8_t *const first_after_period = p;

 #ifdef SIMDJSON_SWAR_NUMBER_PARSING
+#if SIMDJSON_SWAR_NUMBER_PARSING
  // this helps if we have lots of decimals!
  // this turns out to be frequent enough.
-  if (is_made_of_eight_digits_fast(p, end)) {
+  if (is_made_of_eight_digits_fast(p)) {
    i = i * 100000000 + parse_eight_digits_unrolled(p);
    p += 8;
  }
-#endif
+#endif // SIMDJSON_SWAR_NUMBER_PARSING
+#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING
  // Unrolling the first digit makes a small difference on some implementations (e.g. westmere)
-  if (parse_digit(p, end, i)) { ++p; }
-  while (parse_digit(p, end, i)) { ++p; }
+  if (parse_digit(*p, i)) { ++p; }
+  while (parse_digit(*p, i)) { p++; }
  exponent = first_after_period - p;
  // Decimal without digits (123.) is illegal
  if (exponent == 0) {
@@ -389,15 +400,15 @@ simdjson_really_inline error_code parse_decimal(simdjson_unused const uint8_t *
  return SUCCESS;
 }

-simdjson_really_inline error_code parse_exponent(simdjson_unused const uint8_t * const src, const uint8_t * const end, const uint8_t *&p, int64_t &exponent) {
+simdjson_really_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) {
  // Exp Sign: -123.456e[-]78
-  bool neg_exp = (!at_end(p, end) && '-' == *p);
-  if (neg_exp || (!at_end(p, end) && '+' == *p)) { ++p; } // Skip + as well
+  bool neg_exp = ('-' == *p);
+  if (neg_exp || '+' == *p) { p++; } // Skip + as well

  // Exponent: -123.456e-[78]
  auto start_exp = p;
  int64_t exp_number = 0;
-  while (parse_digit(p, end, exp_number)) { ++p; }
+  while (parse_digit(*p, exp_number)) { ++p; }
  // It is possible for parse_digit to overflow.
  // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN.
  // Thus we *must* check for possible overflow before we negate exp_number.
@@ -419,7 +430,7 @@ simdjson_really_inline error_code parse_exponent(simdjson_unused const uint8_t *
  // something!!!!
  if (simdjson_unlikely(p > start_exp+18)) {
    // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow
-    while (*start_exp == '0') { ++start_exp; }
+    while (*start_exp == '0') { start_exp++; }
    // 19 digits could overflow int64_t and is kind of absurd anyway. We don't
    // support exponents smaller than -999,999,999,999,999,999 and bigger
    // than 999,999,999,999,999,999.
@@ -444,15 +455,13 @@ simdjson_really_inline size_t significant_digits(const uint8_t * start_digits, s
  // It is possible that the integer had an overflow.
  // We have to handle the case where we have 0.0000somenumber.
  const uint8_t *start = start_digits;
-  while ((*start == '0') || (*start == '.')) {
-    ++start;
-  }
+  while ((*start == '0') || (*start == '.')) { ++start; }
  // we over-decrement by one when there is a '.'
  return digit_count - size_t(start - start_digits);
 }

 template<typename W>
-simdjson_really_inline error_code write_float(const uint8_t * const src, const uint8_t * const end, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) {
+simdjson_really_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) {
  // If we frequently had to deal with long strings of digits,
  // we could extend our code by using a 128-bit integer instead
  // of a 64-bit integer. However, this is uncommon in practice.
@@ -473,7 +482,7 @@ simdjson_really_inline error_code write_float(const uint8_t * const src, const u
    // it, it would force it to be stored in memory, preventing the compiler from picking it apart
    // and putting into registers. i.e. if we pass it as reference, it gets slow.
    // This is what forces the skip_double, as well.
-    error_code error = slow_float_parsing(src, end, writer);
+    error_code error = slow_float_parsing(src, writer);
    writer.skip_double();
    return error;
  }
@@ -498,7 +507,7 @@ simdjson_really_inline error_code write_float(const uint8_t * const src, const u
  double d;
  if (!compute_float_64(exponent, i, negative, d)) {
    // we are almost never going to get here.
-    if (!parse_float_fallback(src, end, &d)) { return INVALID_NUMBER(src); }
+    if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); }
  }
  WRITE_DOUBLE(d, src, writer);
  return SUCCESS;
@@ -508,15 +517,20 @@ simdjson_really_inline error_code write_float(const uint8_t * const src, const u
 #ifdef SIMDJSON_SKIPNUMBERPARSING

 template<typename W>
-simdjson_really_inline error_code parse_number(const uint8_t * const, W &writer, const uint8_t * const) {
+simdjson_really_inline error_code parse_number(const uint8_t *const, W &writer) {
  writer.append_s64(0);        // always write zero
  return SUCCESS;              // always succeeds
 }

-simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t * const src, const uint8_t * const end = nullptr) noexcept { return 0; }
-simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t * const src, const uint8_t * const end = nullptr) noexcept { return 0; }
-simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * const src, const uint8_t * const end = nullptr) noexcept { return 0; }
-
+simdjson_unused simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t * const src) noexcept { return 0; }
+simdjson_unused simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t * const src) noexcept { return 0; }
+simdjson_unused simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * const src) noexcept { return 0; }
+simdjson_unused simdjson_really_inline simdjson_result<uint64_t> parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; }
+simdjson_unused simdjson_really_inline simdjson_result<int64_t> parse_integer_in_string(const uint8_t * const src) noexcept { return 0; }
+simdjson_unused simdjson_really_inline simdjson_result<double> parse_double_in_string(const uint8_t * const src) noexcept { return 0; }
+simdjson_unused simdjson_really_inline bool is_negative(const uint8_t * src) noexcept  { return false; }
+simdjson_unused simdjson_really_inline simdjson_result<bool> is_integer(const uint8_t * src) noexcept  { return false; }
+simdjson_unused simdjson_really_inline simdjson_result<ondemand::number_type> get_number_type(const uint8_t * src) noexcept { return ondemand::number_type::signed_integer; }
 #else

 // parse the number at src
@@ -529,8 +543,8 @@ simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * cons
 //
 // Our objective is accurate parsing (ULP of 0) at high speed.
 template<typename W>
-simdjson_really_inline error_code parse_number(const uint8_t * const src, W &writer, const uint8_t * const end) {
-  SIMDJSON_ASSUME(end != nullptr);
+simdjson_really_inline error_code parse_number(const uint8_t *const src, W &writer) {
+
  //
  // Check for minus sign
  //
@@ -541,9 +555,9 @@ simdjson_really_inline error_code parse_number(const uint8_t * const src, W &wri
  // Parse the integer part.
  //
  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
-  const uint8_t * const start_digits = p;
+  const uint8_t *const start_digits = p;
  uint64_t i = 0;
-  while (parse_digit(p, end, i)) { ++p; }
+  while (parse_digit(*p, i)) { p++; }

  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
  // Optimization note: size_t is expected to be unsigned.
@@ -555,20 +569,20 @@ simdjson_really_inline error_code parse_number(const uint8_t * const src, W &wri
  //
  int64_t exponent = 0;
  bool is_float = false;
-  if (!at_end(p, end) && '.' == *p) {
+  if ('.' == *p) {
    is_float = true;
    ++p;
-    SIMDJSON_TRY( parse_decimal(src, end, p, i, exponent) );
+    SIMDJSON_TRY( parse_decimal(src, p, i, exponent) );
    digit_count = int(p - start_digits); // used later to guard against overflows
  }
-  if (!at_end(p, end) && ('e' == *p || 'E' == *p)) {
+  if (('e' == *p) || ('E' == *p)) {
    is_float = true;
    ++p;
-    SIMDJSON_TRY( parse_exponent(src, end, p, exponent) );
+    SIMDJSON_TRY( parse_exponent(src, p, exponent) );
  }
  if (is_float) {
-    const bool dirty_end = !at_end(p, end) && jsoncharutils::is_not_structural_or_whitespace(*p);
-    SIMDJSON_TRY( write_float(src, end, negative, i, start_digits, digit_count, exponent, writer) );
+    const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p);
+    SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) );
    if (dirty_end) { return INVALID_NUMBER(src); }
    return SUCCESS;
  }
@@ -583,7 +597,7 @@ simdjson_really_inline error_code parse_number(const uint8_t * const src, W &wri
      // Anything negative above INT64_MAX+1 is invalid
      if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src);  }
      WRITE_INTEGER(~i+1, src, writer);
-      if (!at_end(p, end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); }
+      if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); }
      return SUCCESS;
    // Positive overflow check:
    // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the
@@ -595,7 +609,7 @@ simdjson_really_inline error_code parse_number(const uint8_t * const src, W &wri
    // - That is smaller than the smallest possible 20-digit number the user could write:
    //   10,000,000,000,000,000,000.
    // - Therefore, if the number is positive and lower than that, it's overflow.
-    // - The value we are looking at is less than or equal to 9,223,372,036,854,775,808 (INT64_MAX).
+    // - The value we are looking at is less than or equal to INT64_MAX.
    //
    }  else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); }
  }
@@ -606,7 +620,7 @@ simdjson_really_inline error_code parse_number(const uint8_t * const src, W &wri
  } else {
    WRITE_INTEGER(negative ? (~i+1) : i, src, writer);
  }
-  if (!at_end(p, end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); }
+  if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); }
  return SUCCESS;
 }

@@ -679,15 +693,15 @@ const uint8_t integer_string_finisher[256] = {
    NUMBER_ERROR};

 // Parse any number from 0 to 18,446,744,073,709,551,615
-simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t * const src, const uint8_t * const end = nullptr) noexcept {
+simdjson_unused simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t * const src) noexcept {
  const uint8_t *p = src;
  //
  // Parse the integer part.
  //
  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
-  const uint8_t * const start_digits = p;
+  const uint8_t *const start_digits = p;
  uint64_t i = 0;
-  while (parse_digit(p, end, i)) { ++p; }
+  while (parse_digit(*p, i)) { p++; }

  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
  // Optimization note: size_t is expected to be unsigned.
@@ -705,7 +719,7 @@ simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t *
  //  return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR;
  // }
  // as a single table lookup:
-  if (!at_end(p, end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); }
+  if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); }

  if (digit_count == 20) {
    // Positive overflow check:
@@ -718,7 +732,7 @@ simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t *
    // - That is smaller than the smallest possible 20-digit number the user could write:
    //   10,000,000,000,000,000,000.
    // - Therefore, if the number is positive and lower than that, it's overflow.
-    // - The value we are looking at is less than or equal to 9,223,372,036,854,775,808 (INT64_MAX).
+    // - The value we are looking at is less than or equal to INT64_MAX.
    //
    if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; }
  }
@@ -727,21 +741,120 @@ simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t *
 }


+// Parse any number from 0 to 18,446,744,073,709,551,615
+// Never read at src_end or beyond
+simdjson_unused simdjson_really_inline simdjson_result<uint64_t> parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept {
+  const uint8_t *p = src;
+  //
+  // Parse the integer part.
+  //
+  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
+  const uint8_t *const start_digits = p;
+  uint64_t i = 0;
+  while ((p != src_end) && parse_digit(*p, i)) { p++; }
+
+  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
+  // Optimization note: size_t is expected to be unsigned.
+  size_t digit_count = size_t(p - start_digits);
+  // The longest positive 64-bit number is 20 digits.
+  // We do it this way so we don't trigger this branch unless we must.
+  // Optimization note: the compiler can probably merge
+  // ((digit_count == 0) || (digit_count > 20))
+  // into a single  branch since digit_count is unsigned.
+  if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; }
+  // Here digit_count > 0.
+  if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; }
+  // We can do the following...
+  // if (!jsoncharutils::is_structural_or_whitespace(*p)) {
+  //  return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR;
+  // }
+  // as a single table lookup:
+  if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); }
+
+  if (digit_count == 20) {
+    // Positive overflow check:
+    // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the
+    //   biggest uint64_t.
+    // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX.
+    //   If we got here, it's a 20 digit number starting with the digit "1".
+    // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller
+    //   than 1,553,255,926,290,448,384.
+    // - That is smaller than the smallest possible 20-digit number the user could write:
+    //   10,000,000,000,000,000,000.
+    // - Therefore, if the number is positive and lower than that, it's overflow.
+    // - The value we are looking at is less than or equal to INT64_MAX.
+    //
+    if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; }
+  }
+
+  return i;
+}
+
+// Parse any number from 0 to 18,446,744,073,709,551,615
+simdjson_unused simdjson_really_inline simdjson_result<uint64_t> parse_unsigned_in_string(const uint8_t * const src) noexcept {
+  const uint8_t *p = src + 1;
+  //
+  // Parse the integer part.
+  //
+  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
+  const uint8_t *const start_digits = p;
+  uint64_t i = 0;
+  while (parse_digit(*p, i)) { p++; }
+
+  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
+  // Optimization note: size_t is expected to be unsigned.
+  size_t digit_count = size_t(p - start_digits);
+  // The longest positive 64-bit number is 20 digits.
+  // We do it this way so we don't trigger this branch unless we must.
+  // Optimization note: the compiler can probably merge
+  // ((digit_count == 0) || (digit_count > 20))
+  // into a single  branch since digit_count is unsigned.
+  if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; }
+  // Here digit_count > 0.
+  if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; }
+  // We can do the following...
+  // if (!jsoncharutils::is_structural_or_whitespace(*p)) {
+  //  return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR;
+  // }
+  // as a single table lookup:
+  if (*p != '"') { return NUMBER_ERROR; }
+
+  if (digit_count == 20) {
+    // Positive overflow check:
+    // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the
+    //   biggest uint64_t.
+    // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX.
+    //   If we got here, it's a 20 digit number starting with the digit "1".
+    // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller
+    //   than 1,553,255,926,290,448,384.
+    // - That is smaller than the smallest possible 20-digit number the user could write:
+    //   10,000,000,000,000,000,000.
+    // - Therefore, if the number is positive and lower than that, it's overflow.
+    // - The value we are looking at is less than or equal to INT64_MAX.
+    //
+    // Note: we use src[1] and not src[0] because src[0] is the quote character in this
+    // instance.
+    if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; }
+  }
+
+  return i;
+}
+
 // Parse any number from  -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
-simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t * src, const uint8_t * const end = nullptr) noexcept {
+simdjson_unused simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t *src) noexcept {
  //
  // Check for minus sign
  //
-  bool negative = (!at_end(src, end) && *src == '-');
+  bool negative = (*src == '-');
  const uint8_t *p = src + negative;

  //
  // Parse the integer part.
  //
  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
-  const uint8_t * const start_digits = p;
+  const uint8_t *const start_digits = p;
  uint64_t i = 0;
-  while (parse_digit(p, end, i)) { ++p; }
+  while (parse_digit(*p, i)) { p++; }

  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
  // Optimization note: size_t is expected to be unsigned.
@@ -761,7 +874,7 @@ simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t * sr
  //  return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR;
  // }
  // as a single table lookup:
-  if (!at_end(p, end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); }
+  if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); }
  // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX.
  // Performance note: This check is only needed when digit_count == longest_digit_count but it is
  // so cheap that we might as well always make it.
@@ -769,11 +882,97 @@ simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t * sr
  return negative ? (~i+1) : i;
 }

-simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src, const uint8_t * const end = nullptr) noexcept {
+// Parse any number from  -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
+// Never read at src_end or beyond
+simdjson_unused simdjson_really_inline simdjson_result<int64_t> parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept {
  //
  // Check for minus sign
  //
-  bool negative = (!at_end(src, end) && *src == '-');
+  if(src == src_end) { return NUMBER_ERROR; }
+  bool negative = (*src == '-');
+  const uint8_t *p = src + negative;
+
+  //
+  // Parse the integer part.
+  //
+  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
+  const uint8_t *const start_digits = p;
+  uint64_t i = 0;
+  while ((p != src_end) && parse_digit(*p, i)) { p++; }
+
+  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
+  // Optimization note: size_t is expected to be unsigned.
+  size_t digit_count = size_t(p - start_digits);
+  // We go from
+  // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
+  // so we can never represent numbers that have more than 19 digits.
+  size_t longest_digit_count = 19;
+  // Optimization note: the compiler can probably merge
+  // ((digit_count == 0) || (digit_count > longest_digit_count))
+  // into a single  branch since digit_count is unsigned.
+  if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; }
+  // Here digit_count > 0.
+  if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; }
+  // We can do the following...
+  // if (!jsoncharutils::is_structural_or_whitespace(*p)) {
+  //  return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR;
+  // }
+  // as a single table lookup:
+  if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); }
+  // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX.
+  // Performance note: This check is only needed when digit_count == longest_digit_count but it is
+  // so cheap that we might as well always make it.
+  if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; }
+  return negative ? (~i+1) : i;
+}
+
+// Parse any number from  -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
+simdjson_unused simdjson_really_inline simdjson_result<int64_t> parse_integer_in_string(const uint8_t *src) noexcept {
+  //
+  // Check for minus sign
+  //
+  bool negative = (*(src + 1) == '-');
+  const uint8_t *p = src + negative + 1;
+
+  //
+  // Parse the integer part.
+  //
+  // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare
+  const uint8_t *const start_digits = p;
+  uint64_t i = 0;
+  while (parse_digit(*p, i)) { p++; }
+
+  // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error.
+  // Optimization note: size_t is expected to be unsigned.
+  size_t digit_count = size_t(p - start_digits);
+  // We go from
+  // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
+  // so we can never represent numbers that have more than 19 digits.
+  size_t longest_digit_count = 19;
+  // Optimization note: the compiler can probably merge
+  // ((digit_count == 0) || (digit_count > longest_digit_count))
+  // into a single  branch since digit_count is unsigned.
+  if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; }
+  // Here digit_count > 0.
+  if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; }
+  // We can do the following...
+  // if (!jsoncharutils::is_structural_or_whitespace(*p)) {
+  //  return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR;
+  // }
+  // as a single table lookup:
+  if(*p != '"') { return NUMBER_ERROR; }
+  // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX.
+  // Performance note: This check is only needed when digit_count == longest_digit_count but it is
+  // so cheap that we might as well always make it.
+  if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; }
+  return negative ? (~i+1) : i;
+}
+
+simdjson_unused simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src) noexcept {
+  //
+  // Check for minus sign
+  //
+  bool negative = (*src == '-');
  src += negative;

  //
@@ -781,9 +980,9 @@ simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src,
  //
  uint64_t i = 0;
  const uint8_t *p = src;
-  p += parse_digit(p, end, i);
+  p += parse_digit(*p, i);
  bool leading_zero = (i == 0);
-  while (parse_digit(p, end, i)) { ++p; }
+  while (parse_digit(*p, i)) { p++; }
  // no integer digits, or 0123 (zero must be solo)
  if ( p == src ) { return INCORRECT_TYPE; }
  if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; }
@@ -791,20 +990,14 @@ simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src,
  //
  // Parse the decimal part.
  //
-  // performance todo: we could use SWAR here to quickly processing
-  // digits in blocs of, say, eight digits. Doing so requires that
-  // we always have access to some estimation of the end of the buffer.
-  // Currently, we only have that for root numbers in the On Demand API,
-  // so it is not terribly useful for performance purposes.
-  //
  int64_t exponent = 0;
  bool overflow;
-  if (simdjson_likely(!at_end(p, end) && '.' == *p)) {
-    ++p;
+  if (simdjson_likely(*p == '.')) {
+    p++;
    const uint8_t *start_decimal_digits = p;
-    if (!parse_digit(p, end, i)) { return NUMBER_ERROR; } // no decimal digits
-    ++p;
-    while (parse_digit(p, end, i)) { ++p; }
+    if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits
+    p++;
+    while (parse_digit(*p, i)) { p++; }
    exponent = -(p - start_decimal_digits);

    // Overflow check. More than 19 digits (minus the decimal) may be overflow.
@@ -812,7 +1005,7 @@ simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src,
    if (simdjson_unlikely(overflow && leading_zero)) {
      // Skip leading 0.00000 and see if it still overflows
      const uint8_t *start_digits = src + 2;
-      while (!at_end(start_digits, end) && *start_digits == '0') { ++start_digits; }
+      while (*start_digits == '0') { start_digits++; }
      overflow = start_digits-src > 19;
    }
  } else {
@@ -822,21 +1015,21 @@ simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src,
  //
  // Parse the exponent
  //
-  if (!at_end(p, end) && ('e' == *p || 'E' == *p)) {
-    ++p;
-    bool exp_neg = (!at_end(p, end) && '-' == *p);
-    p += exp_neg || (!at_end(p, end) && '+' == *p);
+  if (*p == 'e' || *p == 'E') {
+    p++;
+    bool exp_neg = *p == '-';
+    p += exp_neg || *p == '+';

    uint64_t exp = 0;
    const uint8_t *start_exp_digits = p;
-    while (parse_digit(p, end, exp)) { ++p; }
+    while (parse_digit(*p, exp)) { p++; }
    // no exp digits, or 20+ exp digits
    if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; }

    exponent += exp_neg ? 0-exp : exp;
  }

-  if (!at_end(p, end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; }
+  if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; }

  overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power;

@@ -847,12 +1040,210 @@ simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src,
  if (simdjson_likely(!overflow)) {
    if (compute_float_64(exponent, i, negative, d)) { return d; }
  }
-  if (!parse_float_fallback(src-negative, end, &d)) {
+  if (!parse_float_fallback(src-negative, &d)) {
    return NUMBER_ERROR;
  }
  return d;
 }

+simdjson_unused simdjson_really_inline bool is_negative(const uint8_t * src) noexcept {
+  return (*src == '-');
+}
+
+simdjson_unused simdjson_really_inline simdjson_result<bool> is_integer(const uint8_t * src) noexcept {
+  bool negative = (*src == '-');
+  src += negative;
+  const uint8_t *p = src;
+  while(static_cast<uint8_t>(*p - '0') <= 9) { p++; }
+  if ( p == src ) { return NUMBER_ERROR; }
+  if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; }
+  return false;
+}
+
+simdjson_unused simdjson_really_inline simdjson_result<ondemand::number_type> get_number_type(const uint8_t * src) noexcept {
+  bool negative = (*src == '-');
+  src += negative;
+  const uint8_t *p = src;
+  while(static_cast<uint8_t>(*p - '0') <= 9) { p++; }
+  if ( p == src ) { return NUMBER_ERROR; }
+  if (jsoncharutils::is_structural_or_whitespace(*p)) {
+    // We have an integer.
+    // If the number is negative and valid, it must be a signed integer.
+    if(negative) { return ondemand::number_type::signed_integer; }
+    // We want values larger or equal to 9223372036854775808 to be unsigned
+    // integers, and the other values to be signed integers.
+    int digit_count = int(p - src);
+    if(digit_count >= 19) {
+      const uint8_t * smaller_big_integer = reinterpret_cast<const uint8_t *>("9223372036854775808");
+      if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) {
+        return ondemand::number_type::unsigned_integer;
+      }
+    }
+    return ondemand::number_type::signed_integer;
+  }
+  // Hopefully, we have 'e' or 'E' or '.'.
+  return ondemand::number_type::floating_point_number;
+}
+
+// Never read at src_end or beyond
+simdjson_unused simdjson_really_inline simdjson_result<double> parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept {
+  if(src == src_end) { return NUMBER_ERROR; }
+  //
+  // Check for minus sign
+  //
+  bool negative = (*src == '-');
+  src += negative;
+
+  //
+  // Parse the integer part.
+  //
+  uint64_t i = 0;
+  const uint8_t *p = src;
+  if(p == src_end) { return NUMBER_ERROR; }
+  p += parse_digit(*p, i);
+  bool leading_zero = (i == 0);
+  while ((p != src_end) && parse_digit(*p, i)) { p++; }
+  // no integer digits, or 0123 (zero must be solo)
+  if ( p == src ) { return INCORRECT_TYPE; }
+  if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; }
+
+  //
+  // Parse the decimal part.
+  //
+  int64_t exponent = 0;
+  bool overflow;
+  if (simdjson_likely((p != src_end) && (*p == '.'))) {
+    p++;
+    const uint8_t *start_decimal_digits = p;
+    if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits
+    p++;
+    while ((p != src_end) && parse_digit(*p, i)) { p++; }
+    exponent = -(p - start_decimal_digits);
+
+    // Overflow check. More than 19 digits (minus the decimal) may be overflow.
+    overflow = p-src-1 > 19;
+    if (simdjson_unlikely(overflow && leading_zero)) {
+      // Skip leading 0.00000 and see if it still overflows
+      const uint8_t *start_digits = src + 2;
+      while (*start_digits == '0') { start_digits++; }
+      overflow = start_digits-src > 19;
+    }
+  } else {
+    overflow = p-src > 19;
+  }
+
+  //
+  // Parse the exponent
+  //
+  if ((p != src_end) && (*p == 'e' || *p == 'E')) {
+    p++;
+    if(p == src_end) { return NUMBER_ERROR; }
+    bool exp_neg = *p == '-';
+    p += exp_neg || *p == '+';
+
+    uint64_t exp = 0;
+    const uint8_t *start_exp_digits = p;
+    while ((p != src_end) && parse_digit(*p, exp)) { p++; }
+    // no exp digits, or 20+ exp digits
+    if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; }
+
+    exponent += exp_neg ? 0-exp : exp;
+  }
+
+  if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; }
+
+  overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power;
+
+  //
+  // Assemble (or slow-parse) the float
+  //
+  double d;
+  if (simdjson_likely(!overflow)) {
+    if (compute_float_64(exponent, i, negative, d)) { return d; }
+  }
+  if (!parse_float_fallback(src-negative, src_end, &d)) {
+    return NUMBER_ERROR;
+  }
+  return d;
+}
+
+simdjson_unused simdjson_really_inline simdjson_result<double> parse_double_in_string(const uint8_t * src) noexcept {
+  //
+  // Check for minus sign
+  //
+  bool negative = (*(src + 1) == '-');
+  src += negative + 1;
+
+  //
+  // Parse the integer part.
+  //
+  uint64_t i = 0;
+  const uint8_t *p = src;
+  p += parse_digit(*p, i);
+  bool leading_zero = (i == 0);
+  while (parse_digit(*p, i)) { p++; }
+  // no integer digits, or 0123 (zero must be solo)
+  if ( p == src ) { return INCORRECT_TYPE; }
+  if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; }
+
+  //
+  // Parse the decimal part.
+  //
+  int64_t exponent = 0;
+  bool overflow;
+  if (simdjson_likely(*p == '.')) {
+    p++;
+    const uint8_t *start_decimal_digits = p;
+    if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits
+    p++;
+    while (parse_digit(*p, i)) { p++; }
+    exponent = -(p - start_decimal_digits);
+
+    // Overflow check. More than 19 digits (minus the decimal) may be overflow.
+    overflow = p-src-1 > 19;
+    if (simdjson_unlikely(overflow && leading_zero)) {
+      // Skip leading 0.00000 and see if it still overflows
+      const uint8_t *start_digits = src + 2;
+      while (*start_digits == '0') { start_digits++; }
+      overflow = start_digits-src > 19;
+    }
+  } else {
+    overflow = p-src > 19;
+  }
+
+  //
+  // Parse the exponent
+  //
+  if (*p == 'e' || *p == 'E') {
+    p++;
+    bool exp_neg = *p == '-';
+    p += exp_neg || *p == '+';
+
+    uint64_t exp = 0;
+    const uint8_t *start_exp_digits = p;
+    while (parse_digit(*p, exp)) { p++; }
+    // no exp digits, or 20+ exp digits
+    if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; }
+
+    exponent += exp_neg ? 0-exp : exp;
+  }
+
+  if (*p != '"') { return NUMBER_ERROR; }
+
+  overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power;
+
+  //
+  // Assemble (or slow-parse) the float
+  //
+  double d;
+  if (simdjson_likely(!overflow)) {
+    if (compute_float_64(exponent, i, negative, d)) { return d; }
+  }
+  if (!parse_float_fallback(src-negative, &d)) {
+    return NUMBER_ERROR;
+  }
+  return d;
+}
 } //namespace {}
 #endif // SIMDJSON_SKIPNUMBERPARSING

@@ -89,6 +89,7 @@ simdjson_really_inline simdjson_result<std::string_view> array::raw_json() noexc
  return std::string_view(reinterpret_cast<const char*>(starting_point), size_t(final_point - starting_point));
 }

+SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING
 simdjson_really_inline simdjson_result<size_t> array::count_elements() & noexcept {
  size_t count{0};
  // Important: we do not consume any of the values.
@@ -101,6 +102,17 @@ simdjson_really_inline simdjson_result<size_t> array::count_elements() & noexcep
  return count;
 }

+simdjson_really_inline simdjson_result<bool> array::is_empty() & noexcept {
+  bool is_not_empty;
+  auto error = iter.reset_array().get(is_not_empty);
+  if(error) { return error; }
+  return !is_not_empty;
+}
+
+inline simdjson_result<bool> array::reset() & noexcept {
+  return iter.reset_array();
+}
+
 inline simdjson_result<value> array::at_pointer(std::string_view json_pointer) noexcept {
  if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; }
  json_pointer = json_pointer.substr(1);
@@ -179,6 +191,10 @@ simdjson_really_inline  simdjson_result<size_t> simdjson_result<SIMDJSON_IMPLEME
  if (error()) { return error(); }
  return first.count_elements();
 }
+simdjson_really_inline  simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array>::is_empty() & noexcept {
+  if (error()) { return error(); }
+  return first.is_empty();
+}
 simdjson_really_inline  simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array>::at(size_t index) noexcept {
  if (error()) { return error(); }
  return first.at(index);
@@ -41,9 +41,32 @@ public:
   * beginning as if it had never been accessed. If the JSON is malformed (e.g.,
   * there is a missing comma), then an error is returned and it is no longer
   * safe to continue.
+   *
+   * To check that an array is empty, it is more performant to use
+   * the is_empty() method.
   */
  simdjson_really_inline simdjson_result<size_t> count_elements() & noexcept;
-
+  /**
+   * This method scans the beginning of the array and checks whether the
+   * array is empty.
+   * The runtime complexity is constant time. After
+   * calling this function, if successful, the array is 'rewinded' at its
+   * beginning as if it had never been accessed. If the JSON is malformed (e.g.,
+   * there is a missing comma), then an error is returned and it is no longer
+   * safe to continue.
+   */
+  simdjson_really_inline simdjson_result<bool> is_empty() & noexcept;
+  /**
+   * Reset the iterator so that we are pointing back at the
+   * beginning of the array. You should still consume values only once even if you
+   * can iterate through the array more than once. If you unescape a string
+   * within the array more than once, you have unsafe code. Note that rewinding
+   * an array means that you may need to reparse it anew: it is not a free
+   * operation.
+   *
+   * @returns true if the array contains some elements (not empty)
+   */
+  inline simdjson_result<bool> reset() & noexcept;
  /**
   * Get the value associated with the given JSON pointer.  We use the RFC 6901
   * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node
@@ -79,6 +102,14 @@ public:
   */
  simdjson_really_inline simdjson_result<std::string_view> raw_json() noexcept;

+  /**
+   * Get the value at the given index. This function has linear-time complexity.
+   * This function should only be called once on an array instance since the array iterator is not reset between each call.
+   *
+   * @return The value at the given index, or:
+   *         - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length
+   */
+  simdjson_really_inline simdjson_result<value> at(size_t index) noexcept;
 protected:
  /**
   * Go to the end of the array, no matter where you are right now.
@@ -121,15 +152,6 @@ protected:
   */
  simdjson_really_inline array(const value_iterator &iter) noexcept;

-  /**
-   * Get the value at the given index. This function has linear-time complexity.
-   * This function should only be called once as the array iterator is not reset between each call.
-   *
-   * @return The value at the given index, or:
-   *         - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length
-   */
-  simdjson_really_inline simdjson_result<value> at(size_t index) noexcept;
-
  /**
   * Iterator marking current position.
   *
@@ -159,7 +181,9 @@ public:

  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> begin() noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> end() noexcept;
-  simdjson_really_inline simdjson_result<size_t> count_elements() & noexcept;
+  inline simdjson_result<size_t> count_elements() & noexcept;
+  inline simdjson_result<bool> is_empty() & noexcept;
+  inline simdjson_result<bool> reset() & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at(size_t index) noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at_pointer(std::string_view json_pointer) noexcept;
 };
@@ -20,6 +20,17 @@ inline std::string document::to_debug_string() noexcept {
  return iter.to_string();
 }

+inline simdjson_result<const char *> document::current_location() noexcept {
+  return iter.current_location();
+}
+
+inline int32_t document::current_depth() const noexcept {
+  return iter.depth();
+}
+
+inline bool document::is_alive() noexcept {
+  return iter.is_alive();
+}
 simdjson_really_inline value_iterator document::resume_value_iterator() noexcept {
  return value_iterator(&iter, 1, iter.root_position());
 }
@@ -33,24 +44,19 @@ simdjson_really_inline simdjson_result<object> document::start_or_resume_object(
    return object::resume(resume_value_iterator());
  }
 }
-simdjson_really_inline simdjson_result<value> document::get_value_unsafe() noexcept {
+simdjson_really_inline simdjson_result<value> document::get_value() noexcept {
  // Make sure we start any arrays or objects before returning, so that start_root_<object/array>()
  // gets called.
+  iter.assert_at_document_depth();
  switch (*iter.peek()) {
-    case '[': {
-      array result;
-      SIMDJSON_TRY( get_array().get(result) );
-      return value(result.iter);
-    }
-    case '{': {
-      object result;
-      SIMDJSON_TRY( get_object().get(result) );
-      return value(result.iter);
-    }
-    default:
-      // TODO it is still wrong to convert this to a value! get_root_bool / etc. will not be
-      // called if you do this.
+    case '[':
+    case '{':
      return value(get_root_value_iterator());
+    default:
+      // Unfortunately, scalar documents are a special case in simdjson and they cannot
+      // be safely converted to value instances.
+      return SCALAR_DOCUMENT_AS_VALUE;
+      // return value(get_root_value_iterator());
  }
 }
 simdjson_really_inline simdjson_result<array> document::get_array() & noexcept {
@@ -64,12 +70,21 @@ simdjson_really_inline simdjson_result<object> document::get_object() & noexcept
 simdjson_really_inline simdjson_result<uint64_t> document::get_uint64() noexcept {
  return get_root_value_iterator().get_root_uint64();
 }
+simdjson_really_inline simdjson_result<uint64_t> document::get_uint64_in_string() noexcept {
+  return get_root_value_iterator().get_root_uint64_in_string();
+}
 simdjson_really_inline simdjson_result<int64_t> document::get_int64() noexcept {
  return get_root_value_iterator().get_root_int64();
 }
+simdjson_really_inline simdjson_result<int64_t> document::get_int64_in_string() noexcept {
+  return get_root_value_iterator().get_root_int64_in_string();
+}
 simdjson_really_inline simdjson_result<double> document::get_double() noexcept {
  return get_root_value_iterator().get_root_double();
 }
+simdjson_really_inline simdjson_result<double> document::get_double_in_string() noexcept {
+  return get_root_value_iterator().get_root_double_in_string();
+}
 simdjson_really_inline simdjson_result<std::string_view> document::get_string() noexcept {
  return get_root_value_iterator().get_root_string();
 }
@@ -91,6 +106,7 @@ template<> simdjson_really_inline simdjson_result<double> document::get() & noex
 template<> simdjson_really_inline simdjson_result<uint64_t> document::get() & noexcept { return get_uint64(); }
 template<> simdjson_really_inline simdjson_result<int64_t> document::get() & noexcept { return get_int64(); }
 template<> simdjson_really_inline simdjson_result<bool> document::get() & noexcept { return get_bool(); }
+template<> simdjson_really_inline simdjson_result<value> document::get() & noexcept { return get_value(); }

 template<> simdjson_really_inline simdjson_result<raw_json_string> document::get() && noexcept { return get_raw_json_string(); }
 template<> simdjson_really_inline simdjson_result<std::string_view> document::get() && noexcept { return get_string(); }
@@ -98,6 +114,7 @@ template<> simdjson_really_inline simdjson_result<double> document::get() && noe
 template<> simdjson_really_inline simdjson_result<uint64_t> document::get() && noexcept { return std::forward<document>(*this).get_uint64(); }
 template<> simdjson_really_inline simdjson_result<int64_t> document::get() && noexcept { return std::forward<document>(*this).get_int64(); }
 template<> simdjson_really_inline simdjson_result<bool> document::get() && noexcept { return std::forward<document>(*this).get_bool(); }
+template<> simdjson_really_inline simdjson_result<value> document::get() && noexcept { return get_value(); }

 template<typename T> simdjson_really_inline error_code document::get(T &out) & noexcept {
  return get<T>().get(out);
@@ -115,14 +132,33 @@ simdjson_really_inline document::operator double() noexcept(false) { return get_
 simdjson_really_inline document::operator std::string_view() noexcept(false) { return get_string(); }
 simdjson_really_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); }
 simdjson_really_inline document::operator bool() noexcept(false) { return get_bool(); }
+simdjson_really_inline document::operator value() noexcept(false) { return get_value(); }
+
 #endif
 simdjson_really_inline simdjson_result<size_t> document::count_elements() & noexcept {
  auto a = get_array();
  simdjson_result<size_t> answer = a.count_elements();
  /* If there was an array, we are now left pointing at its first element. */
-  if(answer.error() == SUCCESS) { iter._depth -= 1 ; /* undoing the increment so we go back at the doc depth.*/ }
+  if(answer.error() == SUCCESS) {
+    iter._depth = 1 ; /* undoing the increment so we go back at the doc depth.*/
+    iter.assert_at_document_depth();
+  }
  return answer;
 }
+simdjson_really_inline simdjson_result<size_t> document::count_fields() & noexcept {
+  auto a = get_object();
+  simdjson_result<size_t> answer = a.count_fields();
+  /* If there was an array, we are now left pointing at its first element. */
+  if(answer.error() == SUCCESS) {
+    iter._depth = 1 ; /* undoing the increment so we go back at the doc depth.*/
+    iter.assert_at_document_depth();
+  }
+  return answer;
+}
+simdjson_really_inline simdjson_result<value> document::at(size_t index) & noexcept {
+  auto a = get_array();
+  return a.at(index);
+}
 simdjson_really_inline simdjson_result<array_iterator> document::begin() & noexcept {
  return get_array().begin();
 }
@@ -171,6 +207,30 @@ simdjson_really_inline simdjson_result<json_type> document::type() noexcept {
  return get_root_value_iterator().type();
 }

+simdjson_really_inline simdjson_result<bool> document::is_scalar() noexcept {
+  json_type this_type;
+  auto error = type().get(this_type);
+  if(error) { return error; }
+  return ! ((this_type == json_type::array) || (this_type == json_type::object));
+}
+
+simdjson_really_inline bool document::is_negative() noexcept {
+  return get_root_value_iterator().is_root_negative();
+}
+
+simdjson_really_inline simdjson_result<bool> document::is_integer() noexcept {
+  return get_root_value_iterator().is_root_integer();
+}
+
+simdjson_really_inline simdjson_result<number_type> document::get_number_type() noexcept {
+  return get_root_value_iterator().get_root_number_type();
+}
+
+simdjson_really_inline simdjson_result<number> document::get_number() noexcept {
+  return get_root_value_iterator().get_root_number();
+}
+
+
 simdjson_really_inline simdjson_result<std::string_view> document::raw_json_token() noexcept {
  auto _iter = get_root_value_iterator();
  return std::string_view(reinterpret_cast<const char*>(_iter.peek_start()), _iter.peek_start_length());
@@ -179,7 +239,7 @@ simdjson_really_inline simdjson_result<std::string_view> document::raw_json_toke
 simdjson_really_inline simdjson_result<value> document::at_pointer(std::string_view json_pointer) noexcept {
  rewind(); // Rewind the document each time at_pointer is called
  if (json_pointer.empty()) {
-    return this->get_value_unsafe();
+    return this->get_value();
  }
  json_type t;
  SIMDJSON_TRY(type().get(t));
@@ -220,6 +280,14 @@ simdjson_really_inline simdjson_result<size_t> simdjson_result<SIMDJSON_IMPLEMEN
  if (error()) { return error(); }
  return first.count_elements();
 }
+simdjson_really_inline simdjson_result<size_t> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::count_fields() & noexcept {
+  if (error()) { return error(); }
+  return first.count_fields();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::at(size_t index) & noexcept {
+  if (error()) { return error(); }
+  return first.at(index);
+}
 simdjson_really_inline error_code simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::rewind() noexcept {
  if (error()) { return error(); }
  first.rewind();
@@ -288,6 +356,10 @@ simdjson_really_inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTA
  if (error()) { return error(); }
  return first.get_bool();
 }
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::get_value() noexcept {
+  if (error()) { return error(); }
+  return first.get_value();
+}
 simdjson_really_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::is_null() noexcept {
  if (error()) { return error(); }
  return first.is_null();
@@ -331,6 +403,33 @@ simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::json_t
  return first.type();
 }

+simdjson_really_inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::is_scalar() noexcept {
+  if (error()) { return error(); }
+  return first.is_scalar();
+}
+
+
+simdjson_really_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::is_negative() noexcept {
+  if (error()) { return error(); }
+  return first.is_negative();
+}
+
+simdjson_really_inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::is_integer() noexcept {
+  if (error()) { return error(); }
+  return first.is_integer();
+}
+
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number_type> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::get_number_type() noexcept {
+  if (error()) { return error(); }
+  return first.get_number_type();
+}
+
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::get_number() noexcept {
+  if (error()) { return error(); }
+  return first.get_number();
+}
+
+
 #if SIMDJSON_EXCEPTIONS
 simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::operator SIMDJSON_IMPLEMENTATION::ondemand::array() & noexcept(false) {
  if (error()) { throw simdjson_error(error()); }
@@ -364,8 +463,23 @@ simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::docume
  if (error()) { throw simdjson_error(error()); }
  return first;
 }
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::operator SIMDJSON_IMPLEMENTATION::ondemand::value() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
 #endif

+
+simdjson_really_inline simdjson_result<const char *> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::current_location() noexcept {
+  if (error()) { return error(); }
+  return first.current_location();
+}
+
+simdjson_really_inline int32_t simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::current_depth() const noexcept {
+  if (error()) { return error(); }
+  return first.current_depth();
+}
+
 simdjson_really_inline simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document>::raw_json_token() noexcept {
  if (error()) { return error(); }
  return first.raw_json_token();
@@ -376,4 +490,239 @@ simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value>
  return first.at_pointer(json_pointer);
 }

+
+} // namespace simdjson
+
+
+namespace simdjson {
+namespace SIMDJSON_IMPLEMENTATION {
+namespace ondemand {
+
+simdjson_really_inline document_reference::document_reference() noexcept : doc{nullptr} {}
+simdjson_really_inline document_reference::document_reference(document &d) noexcept : doc(&d) {}
+simdjson_really_inline void document_reference::rewind() noexcept { doc->rewind(); }
+simdjson_really_inline simdjson_result<array> document_reference::get_array() & noexcept { return doc->get_array(); }
+simdjson_really_inline simdjson_result<object> document_reference::get_object() & noexcept { return doc->get_object(); }
+simdjson_really_inline simdjson_result<uint64_t> document_reference::get_uint64() noexcept { return doc->get_uint64(); }
+simdjson_really_inline simdjson_result<int64_t> document_reference::get_int64() noexcept { return doc->get_int64(); }
+simdjson_really_inline simdjson_result<double> document_reference::get_double() noexcept { return doc->get_double(); }
+simdjson_really_inline simdjson_result<std::string_view> document_reference::get_string() noexcept { return doc->get_string(); }
+simdjson_really_inline simdjson_result<raw_json_string> document_reference::get_raw_json_string() noexcept { return doc->get_raw_json_string(); }
+simdjson_really_inline simdjson_result<bool> document_reference::get_bool() noexcept { return doc->get_bool(); }
+simdjson_really_inline simdjson_result<value> document_reference::get_value() noexcept { return doc->get_value(); }
+simdjson_really_inline bool document_reference::is_null() noexcept { return doc->is_null(); }
+
+#if SIMDJSON_EXCEPTIONS
+simdjson_really_inline document_reference::operator array() & noexcept(false) { return array(*doc); }
+simdjson_really_inline document_reference::operator object() & noexcept(false) { return object(*doc); }
+simdjson_really_inline document_reference::operator uint64_t() noexcept(false) { return uint64_t(*doc); }
+simdjson_really_inline document_reference::operator int64_t() noexcept(false) { return int64_t(*doc); }
+simdjson_really_inline document_reference::operator double() noexcept(false) { return double(*doc); }
+simdjson_really_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); }
+simdjson_really_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); }
+simdjson_really_inline document_reference::operator bool() noexcept(false) { return bool(*doc); }
+simdjson_really_inline document_reference::operator value() noexcept(false) { return value(*doc); }
+#endif
+simdjson_really_inline simdjson_result<size_t> document_reference::count_elements() & noexcept { return doc->count_elements(); }
+simdjson_really_inline simdjson_result<size_t> document_reference::count_fields() & noexcept { return doc->count_fields(); }
+simdjson_really_inline simdjson_result<value> document_reference::at(size_t index) & noexcept { return doc->at(index); }
+simdjson_really_inline simdjson_result<array_iterator> document_reference::begin() & noexcept { return doc->begin(); }
+simdjson_really_inline simdjson_result<array_iterator> document_reference::end() & noexcept { return doc->end(); }
+simdjson_really_inline simdjson_result<value> document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); }
+simdjson_really_inline simdjson_result<value> document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); }
+simdjson_really_inline simdjson_result<value> document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; }
+simdjson_really_inline simdjson_result<value> document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; }
+simdjson_really_inline simdjson_result<value> document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); }
+simdjson_really_inline simdjson_result<value> document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); }
+simdjson_really_inline simdjson_result<json_type> document_reference::type() noexcept { return doc->type(); }
+simdjson_really_inline simdjson_result<bool> document_reference::is_scalar() noexcept { return doc->is_scalar(); }
+simdjson_really_inline simdjson_result<const char *> document_reference::current_location() noexcept { return doc->current_location(); }
+simdjson_really_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); }
+simdjson_really_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); }
+simdjson_really_inline simdjson_result<bool> document_reference::is_integer() noexcept { return doc->is_integer(); }
+simdjson_really_inline simdjson_result<number_type> document_reference::get_number_type() noexcept { return doc->get_number_type(); }
+simdjson_really_inline simdjson_result<number> document_reference::get_number() noexcept { return doc->get_number(); }
+simdjson_really_inline simdjson_result<std::string_view> document_reference::raw_json_token() noexcept { return doc->raw_json_token(); }
+simdjson_really_inline simdjson_result<value> document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); }
+simdjson_really_inline simdjson_result<std::string_view> document_reference::raw_json() noexcept { return doc->raw_json();}
+simdjson_really_inline document_reference::operator document&() const noexcept { return *doc; }
+
+} // namespace ondemand
+} // namespace SIMDJSON_IMPLEMENTATION
+} // namespace simdjson
+
+
+
+namespace simdjson {
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::simdjson_result(SIMDJSON_IMPLEMENTATION::ondemand::document_reference value, error_code error)
+  noexcept : implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>(std::forward<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>(value), error) {}
+
+
+simdjson_really_inline simdjson_result<size_t> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::count_elements() & noexcept {
+  if (error()) { return error(); }
+  return first.count_elements();
+}
+simdjson_really_inline simdjson_result<size_t> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::count_fields() & noexcept {
+  if (error()) { return error(); }
+  return first.count_fields();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::at(size_t index) & noexcept {
+  if (error()) { return error(); }
+  return first.at(index);
+}
+simdjson_really_inline error_code simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::rewind() noexcept {
+  if (error()) { return error(); }
+  first.rewind();
+  return SUCCESS;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::begin() & noexcept {
+  if (error()) { return error(); }
+  return first.begin();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::end() & noexcept {
+  return {};
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::find_field_unordered(std::string_view key) & noexcept {
+  if (error()) { return error(); }
+  return first.find_field_unordered(key);
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::find_field_unordered(const char *key) & noexcept {
+  if (error()) { return error(); }
+  return first.find_field_unordered(key);
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator[](std::string_view key) & noexcept {
+  if (error()) { return error(); }
+  return first[key];
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator[](const char *key) & noexcept {
+  if (error()) { return error(); }
+  return first[key];
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::find_field(std::string_view key) & noexcept {
+  if (error()) { return error(); }
+  return first.find_field(key);
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::find_field(const char *key) & noexcept {
+  if (error()) { return error(); }
+  return first.find_field(key);
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_array() & noexcept {
+  if (error()) { return error(); }
+  return first.get_array();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_object() & noexcept {
+  if (error()) { return error(); }
+  return first.get_object();
+}
+simdjson_really_inline simdjson_result<uint64_t> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_uint64() noexcept {
+  if (error()) { return error(); }
+  return first.get_uint64();
+}
+simdjson_really_inline simdjson_result<int64_t> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_int64() noexcept {
+  if (error()) { return error(); }
+  return first.get_int64();
+}
+simdjson_really_inline simdjson_result<double> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_double() noexcept {
+  if (error()) { return error(); }
+  return first.get_double();
+}
+simdjson_really_inline simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_string() noexcept {
+  if (error()) { return error(); }
+  return first.get_string();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_raw_json_string() noexcept {
+  if (error()) { return error(); }
+  return first.get_raw_json_string();
+}
+simdjson_really_inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_bool() noexcept {
+  if (error()) { return error(); }
+  return first.get_bool();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_value() noexcept {
+  if (error()) { return error(); }
+  return first.get_value();
+}
+simdjson_really_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::is_null() noexcept {
+  if (error()) { return error(); }
+  return first.is_null();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::json_type> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::type() noexcept {
+  if (error()) { return error(); }
+  return first.type();
+}
+simdjson_really_inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::is_scalar() noexcept {
+  if (error()) { return error(); }
+  return first.is_scalar();
+}
+simdjson_really_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::is_negative() noexcept {
+  if (error()) { return error(); }
+  return first.is_negative();
+}
+simdjson_really_inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::is_integer() noexcept {
+  if (error()) { return error(); }
+  return first.is_integer();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number_type> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_number_type() noexcept {
+  if (error()) { return error(); }
+  return first.get_number_type();
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::get_number() noexcept {
+  if (error()) { return error(); }
+  return first.get_number();
+}
+#if SIMDJSON_EXCEPTIONS
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator SIMDJSON_IMPLEMENTATION::ondemand::array() & noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator SIMDJSON_IMPLEMENTATION::ondemand::object() & noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator uint64_t() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator int64_t() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator double() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator std::string_view() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator bool() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::operator SIMDJSON_IMPLEMENTATION::ondemand::value() noexcept(false) {
+  if (error()) { throw simdjson_error(error()); }
+  return first;
+}
+#endif
+
+simdjson_really_inline simdjson_result<const char *> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::current_location() noexcept {
+  if (error()) { return error(); }
+  return first.current_location();
+}
+
+simdjson_really_inline simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::raw_json_token() noexcept {
+  if (error()) { return error(); }
+  return first.raw_json_token();
+}
+
+simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference>::at_pointer(std::string_view json_pointer) noexcept {
+  if (error()) { return error(); }
+  return first.at_pointer(json_pointer);
+}
+
+
 } // namespace simdjson
@@ -13,7 +13,7 @@ class array_iterator;
 class document_stream;

 /**
- * A JSON document iteration.
+ * A JSON document. It holds a json_iterator instance.
 *
 * Used by tokens to get text, and string buffer location.
 *
@@ -27,7 +27,7 @@ public:
   * Exists so you can declare a variable and later assign to it before use.
   */
  simdjson_really_inline document() noexcept = default;
-  simdjson_really_inline document(const document &other) noexcept = delete;
+  simdjson_really_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy
  simdjson_really_inline document(document &&other) noexcept = default;
  simdjson_really_inline document &operator=(const document &other) noexcept = delete;
  simdjson_really_inline document &operator=(document &&other) noexcept = default;
@@ -53,6 +53,13 @@ public:
   * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer.
   */
  simdjson_really_inline simdjson_result<uint64_t> get_uint64() noexcept;
+  /**
+   * Cast this JSON value (inside string) to an unsigned integer.
+   *
+   * @returns A signed 64-bit integer.
+   * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer.
+   */
+  simdjson_really_inline simdjson_result<uint64_t> get_uint64_in_string() noexcept;
  /**
   * Cast this JSON value to a signed integer.
   *
@@ -60,6 +67,13 @@ public:
   * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer.
   */
  simdjson_really_inline simdjson_result<int64_t> get_int64() noexcept;
+  /**
+   * Cast this JSON value (inside string) to a signed integer.
+   *
+   * @returns A signed 64-bit integer.
+   * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer.
+   */
+  simdjson_really_inline simdjson_result<int64_t> get_int64_in_string() noexcept;
  /**
   * Cast this JSON value to a double.
   *
@@ -67,11 +81,21 @@ public:
   * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number.
   */
  simdjson_really_inline simdjson_result<double> get_double() noexcept;
+
+  /**
+   * Cast this JSON value (inside string) to a double.
+   *
+   * @returns A double.
+   * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number.
+   */
+  simdjson_really_inline simdjson_result<double> get_double_in_string() noexcept;
  /**
   * Cast this JSON value to a string.
   *
   * The string is guaranteed to be valid UTF-8.
   *
+   * Important: Calling get_string() twice on the same document is an error.
+   *
   * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next
   *          time it parses a document or when it is destroyed.
   * @returns INCORRECT_TYPE if the JSON value is not a string.
@@ -93,6 +117,14 @@ public:
   * @returns INCORRECT_TYPE if the JSON value is not true or false.
   */
  simdjson_really_inline simdjson_result<bool> get_bool() noexcept;
+  /**
+   * Cast this JSON value to a value when the document is an object or an array.
+   *
+   * @returns A value if a JSON array or object cannot be found.
+   * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function).
+   */
+  simdjson_really_inline simdjson_result<value> get_value() noexcept;
+
  /**
   * Checks if this JSON value is null.
   *
@@ -126,7 +158,9 @@ public:
  /**
   * Get this value as the given type.
   *
-   * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool
+   * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value
+   *
+   * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances.
   *
   * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized.
   * @returns INCORRECT_TYPE If the JSON value is not an object.
@@ -198,6 +232,13 @@ public:
   * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false.
   */
  simdjson_really_inline operator bool() noexcept(false);
+  /**
+   * Cast this JSON value to a value.
+   *
+   * @returns A value value.
+   * @exception if a JSON value cannot be found
+   */
+  simdjson_really_inline operator value() noexcept(false);
 #endif
  /**
   * This method scans the array and counts the number of elements.
@@ -211,6 +252,29 @@ public:
   * safe to continue.
   */
  simdjson_really_inline simdjson_result<size_t> count_elements() & noexcept;
+   /**
+   * This method scans the object and counts the number of key-value pairs.
+   * The count_fields method should always be called before you have begun
+   * iterating through the object: it is expected that you are pointing at
+   * the beginning of the object.
+   * The runtime complexity is linear in the size of the object. After
+   * calling this function, if successful, the object is 'rewinded' at its
+   * beginning as if it had never been accessed. If the JSON is malformed (e.g.,
+   * there is a missing comma), then an error is returned and it is no longer
+   * safe to continue.
+   *
+   * To check that an object is empty, it is more performant to use
+   * the is_empty() method.
+   */
+  simdjson_really_inline simdjson_result<size_t> count_fields() & noexcept;
+  /**
+   * Get the value at the given index in the array. This function has linear-time complexity.
+   * This function should only be called once on an array instance since the array iterator is not reset between each call.
+   *
+   * @return The value at the given index, or:
+   *         - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length
+   */
+  simdjson_really_inline simdjson_result<value> at(size_t index) & noexcept;
  /**
   * Begin array iteration.
   *
@@ -241,6 +305,18 @@ public:
   * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys.
   * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`.
   *
+   *
+   * You must consume the fields on an object one at a time. A request for a new key
+   * invalidates previous field values: it makes them unsafe. E.g., the array
+   * given by content["bids"].get_array() should not be accessed after you have called
+   * content["asks"].get_array(). You can detect such mistakes by first compiling and running
+   * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an
+   * OUT_OF_ORDER_ITERATION error is generated.
+   *
+   * You are expected to access keys only once. You should access the value corresponding to
+   * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string()
+   * is an error.
+   *
   * @param key The key to look up.
   * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object.
   */
@@ -264,6 +340,17 @@ public:
   * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the
   * field wasn't there when they aren't).
   *
+   * You must consume the fields on an object one at a time. A request for a new key
+   * invalidates previous field values: it makes them unsafe. E.g., the array
+   * given by content["bids"].get_array() should not be accessed after you have called
+   * content["asks"].get_array(). You can detect such mistakes by first compiling and running
+   * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an
+   * OUT_OF_ORDER_ITERATION error is generated.
+   *
+   * You are expected to access keys only once. You should access the value corresponding to a key
+   * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string()
+   * is an error.
+   *
   * @param key The key to look up.
   * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object.
   */
@@ -286,6 +373,83 @@ public:
   */
  simdjson_really_inline simdjson_result<json_type> type() noexcept;

+  /**
+   * Checks whether the document is a scalar (string, number, null, Boolean).
+   * Returns false when there it is an array or object.
+   *
+   * @returns true if the type is string, number, null, Boolean
+   * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse".
+   */
+  simdjson_really_inline simdjson_result<bool> is_scalar() noexcept;
+
+  /**
+   * Checks whether the document is a negative number.
+   *
+   * @returns true if the number if negative.
+   */
+  simdjson_really_inline bool is_negative() noexcept;
+  /**
+   * Checks whether the document is an integer number. Note that
+   * this requires to partially parse the number string. If
+   * the value is determined to be an integer, it may still
+   * not parse properly as an integer in subsequent steps
+   * (e.g., it might overflow).
+   *
+   * @returns true if the number if negative.
+   */
+  simdjson_really_inline simdjson_result<bool> is_integer() noexcept;
+  /**
+   * Determine the number type (integer or floating-point number) as quickly
+   * as possible. This function does not fully validate the input. It is
+   * useful when you only need to classify the numbers, without parsing them.
+   *
+   * If you are planning to retrieve the value or you need full validation,
+   * consider using the get_number() method instead: it will fully parse
+   * and validate the input, and give you access to the type:
+   * get_number().get_number_type().
+   *
+   * get_number_type() is number_type::unsigned_integer if we have
+   * an integer greater or equal to 9223372036854775808
+   * get_number_type() is number_type::signed_integer if we have an
+   * integer that is less than 9223372036854775808
+   * Otherwise, get_number_type() has value number_type::floating_point_number
+   *
+   * This function requires processing the number string, but it is expected
+   * to be faster than get_number().get_number_type() because it is does not
+   * parse the number value.
+   *
+   * @returns the type of the number
+   */
+  simdjson_really_inline simdjson_result<number_type> get_number_type() noexcept;
+
+  /**
+   * Attempt to parse an ondemand::number. An ondemand::number may
+   * contain an integer value or a floating-point value, the simdjson
+   * library will autodetect the type. Thus it is a dynamically typed
+   * number. Before accessing the value, you must determine the detected
+   * type.
+   *
+   * number.get_number_type() is number_type::signed_integer if we have
+   * an integer in [-9223372036854775808,9223372036854775808)
+   * You can recover the value by calling number.get_int64() and you
+   * have that number.is_int64() is true.
+   *
+   * number.get_number_type() is number_type::unsigned_integer if we have
+   * an integer in [9223372036854775808,18446744073709551616)
+   * You can recover the value by calling number.get_uint64() and you
+   * have that number.is_uint64() is true.
+   *
+   * Otherwise, number.get_number_type() has value number_type::floating_point_number
+   * and we have a binary64 number.
+   * You can recover the value by calling number.get_double() and you
+   * have that number.is_double() is true.
+   *
+   * You must check the type before accessing the value: it is an error
+   * to call "get_int64()" when number.get_number_type() is not
+   * number_type::signed_integer and when number.is_int64() is false.
+   */
+  simdjson_warn_unused simdjson_really_inline simdjson_result<number> get_number() noexcept;
+
  /**
   * Get the raw JSON for this token.
   *
@@ -320,6 +484,27 @@ public:
   * Returns debugging information.
   */
  inline std::string to_debug_string() noexcept;
+  /**
+   * Some unrecoverable error conditions may render the document instance unusable.
+   * The is_alive() method returns true when the document is still suitable.
+   */
+  inline bool is_alive() noexcept;
+
+  /**
+   * Returns the current location in the document if in bounds.
+   */
+  inline simdjson_result<const char *> current_location() noexcept;
+
+  /**
+   * Returns the current depth in the document if in bounds.
+   *
+   * E.g.,
+   *  0 = finished with document
+   *  1 = document root value (could be [ or {, not yet known)
+   *  2 = , or } inside root array/object
+   *  3 = key or value inside root array/object.
+   */
+  simdjson_really_inline int32_t current_depth() const noexcept;

  /**
   * Get the value associated with the given JSON pointer.  We use the RFC 6901
@@ -350,11 +535,12 @@ public:
   *         - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length
   *         - INCORRECT_TYPE if a non-integer is used to access an array
   *         - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed
+   *         - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function).
   */
  simdjson_really_inline simdjson_result<value> at_pointer(std::string_view json_pointer) noexcept;
  /**
   * Consumes the document and returns a string_view instance corresponding to the
-   * document as represented in JSON. It points inside the original byte array containg
+   * document as represented in JSON. It points inside the original byte array containing
   * the JSON document.
   */
  simdjson_really_inline simdjson_result<std::string_view> raw_json() noexcept;
@@ -369,7 +555,6 @@ protected:

  simdjson_really_inline value_iterator resume_value_iterator() noexcept;
  simdjson_really_inline value_iterator get_root_value_iterator() noexcept;
-  simdjson_really_inline simdjson_result<value> get_value_unsafe() noexcept;
  simdjson_really_inline simdjson_result<object> start_or_resume_object() noexcept;
  static simdjson_really_inline document start(ondemand::json_iterator &&iter) noexcept;

@@ -389,6 +574,68 @@ protected:
  friend class document_stream;
 };

+
+/**
+ * A document_reference is a thin wrapper around a document reference instance.
+ */
+class document_reference {
+public:
+  simdjson_really_inline document_reference() noexcept;
+  simdjson_really_inline document_reference(document &d) noexcept;
+  simdjson_really_inline document_reference(const document_reference &other) noexcept = default;
+  simdjson_really_inline document_reference& operator=(const document_reference &other) noexcept = default;
+  simdjson_really_inline void rewind() noexcept;
+  simdjson_really_inline simdjson_result<array> get_array() & noexcept;
+  simdjson_really_inline simdjson_result<object> get_object() & noexcept;
+  simdjson_really_inline simdjson_result<uint64_t> get_uint64() noexcept;
+  simdjson_really_inline simdjson_result<int64_t> get_int64() noexcept;
+  simdjson_really_inline simdjson_result<double> get_double() noexcept;
+  simdjson_really_inline simdjson_result<std::string_view> get_string() noexcept;
+  simdjson_really_inline simdjson_result<raw_json_string> get_raw_json_string() noexcept;
+  simdjson_really_inline simdjson_result<bool> get_bool() noexcept;
+  simdjson_really_inline simdjson_result<value> get_value() noexcept;
+
+  simdjson_really_inline bool is_null() noexcept;
+  simdjson_really_inline simdjson_result<std::string_view> raw_json() noexcept;
+  simdjson_really_inline operator document&() const noexcept;
+
+#if SIMDJSON_EXCEPTIONS
+  simdjson_really_inline operator array() & noexcept(false);
+  simdjson_really_inline operator object() & noexcept(false);
+  simdjson_really_inline operator uint64_t() noexcept(false);
+  simdjson_really_inline operator int64_t() noexcept(false);
+  simdjson_really_inline operator double() noexcept(false);
+  simdjson_really_inline operator std::string_view() noexcept(false);
+  simdjson_really_inline operator raw_json_string() noexcept(false);
+  simdjson_really_inline operator bool() noexcept(false);
+  simdjson_really_inline operator value() noexcept(false);
+#endif
+  simdjson_really_inline simdjson_result<size_t> count_elements() & noexcept;
+  simdjson_really_inline simdjson_result<size_t> count_fields() & noexcept;
+  simdjson_really_inline simdjson_result<value> at(size_t index) & noexcept;
+  simdjson_really_inline simdjson_result<array_iterator> begin() & noexcept;
+  simdjson_really_inline simdjson_result<array_iterator> end() & noexcept;
+  simdjson_really_inline simdjson_result<value> find_field(std::string_view key) & noexcept;
+  simdjson_really_inline simdjson_result<value> find_field(const char *key) & noexcept;
+  simdjson_really_inline simdjson_result<value> operator[](std::string_view key) & noexcept;
+  simdjson_really_inline simdjson_result<value> operator[](const char *key) & noexcept;
+  simdjson_really_inline simdjson_result<value> find_field_unordered(std::string_view key) & noexcept;
+  simdjson_really_inline simdjson_result<value> find_field_unordered(const char *key) & noexcept;
+
+  simdjson_really_inline simdjson_result<json_type> type() noexcept;
+  simdjson_really_inline simdjson_result<bool> is_scalar() noexcept;
+
+  simdjson_really_inline simdjson_result<const char *> current_location() noexcept;
+  simdjson_really_inline int32_t current_depth() const noexcept;
+  simdjson_really_inline bool is_negative() noexcept;
+  simdjson_really_inline simdjson_result<bool> is_integer() noexcept;
+  simdjson_really_inline simdjson_result<number_type> get_number_type() noexcept;
+  simdjson_really_inline simdjson_result<number> get_number() noexcept;
+  simdjson_really_inline simdjson_result<std::string_view> raw_json_token() noexcept;
+  simdjson_really_inline simdjson_result<value> at_pointer(std::string_view json_pointer) noexcept;
+private:
+  document *doc{nullptr};
+};
 } // namespace ondemand
 } // namespace SIMDJSON_IMPLEMENTATION
 } // namespace simdjson
@@ -408,9 +655,11 @@ public:
  simdjson_really_inline simdjson_result<uint64_t> get_uint64() noexcept;
  simdjson_really_inline simdjson_result<int64_t> get_int64() noexcept;
  simdjson_really_inline simdjson_result<double> get_double() noexcept;
+  simdjson_really_inline simdjson_result<double> get_double_from_string() noexcept;
  simdjson_really_inline simdjson_result<std::string_view> get_string() noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string> get_raw_json_string() noexcept;
  simdjson_really_inline simdjson_result<bool> get_bool() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> get_value() noexcept;
  simdjson_really_inline bool is_null() noexcept;

  template<typename T> simdjson_really_inline simdjson_result<T> get() & noexcept;
@@ -428,8 +677,11 @@ public:
  simdjson_really_inline operator std::string_view() noexcept(false);
  simdjson_really_inline operator SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false);
  simdjson_really_inline operator bool() noexcept(false);
+  simdjson_really_inline operator SIMDJSON_IMPLEMENTATION::ondemand::value() noexcept(false);
 #endif
  simdjson_really_inline simdjson_result<size_t> count_elements() & noexcept;
+  simdjson_really_inline simdjson_result<size_t> count_fields() & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at(size_t index) & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> begin() & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> end() & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field(std::string_view key) & noexcept;
@@ -438,13 +690,80 @@ public:
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> operator[](const char *key) & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field_unordered(std::string_view key) & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field_unordered(const char *key) & noexcept;
-
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::json_type> type() noexcept;
-
+  simdjson_really_inline simdjson_result<bool> is_scalar() noexcept;
+  simdjson_really_inline simdjson_result<const char *> current_location() noexcept;
+  simdjson_really_inline int32_t current_depth() const noexcept;
+  simdjson_really_inline bool is_negative() noexcept;
+  simdjson_really_inline simdjson_result<bool> is_integer() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number_type> get_number_type() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number> get_number() noexcept;
  /** @copydoc simdjson_really_inline std::string_view document::raw_json_token() const noexcept */
  simdjson_really_inline simdjson_result<std::string_view> raw_json_token() noexcept;

  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at_pointer(std::string_view json_pointer) noexcept;
 };

+
 } // namespace simdjson
+
+
+
+namespace simdjson {
+
+template<>
+struct simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference> : public SIMDJSON_IMPLEMENTATION::implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::document_reference> {
+public:
+  simdjson_really_inline simdjson_result(SIMDJSON_IMPLEMENTATION::ondemand::document_reference value, error_code error) noexcept;
+  simdjson_really_inline simdjson_result() noexcept = default;
+  simdjson_really_inline error_code rewind() noexcept;
+
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array> get_array() & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object> get_object() & noexcept;
+  simdjson_really_inline simdjson_result<uint64_t> get_uint64() noexcept;
+  simdjson_really_inline simdjson_result<int64_t> get_int64() noexcept;
+  simdjson_really_inline simdjson_result<double> get_double() noexcept;
+  simdjson_really_inline simdjson_result<std::string_view> get_string() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string> get_raw_json_string() noexcept;
+  simdjson_really_inline simdjson_result<bool> get_bool() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> get_value() noexcept;
+  simdjson_really_inline bool is_null() noexcept;
+
+#if SIMDJSON_EXCEPTIONS
+  simdjson_really_inline operator SIMDJSON_IMPLEMENTATION::ondemand::array() & noexcept(false);
+  simdjson_really_inline operator SIMDJSON_IMPLEMENTATION::ondemand::object() & noexcept(false);
+  simdjson_really_inline operator uint64_t() noexcept(false);
+  simdjson_really_inline operator int64_t() noexcept(false);
+  simdjson_really_inline operator double() noexcept(false);
+  simdjson_really_inline operator std::string_view() noexcept(false);
+  simdjson_really_inline operator SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false);
+  simdjson_really_inline operator bool() noexcept(false);
+  simdjson_really_inline operator SIMDJSON_IMPLEMENTATION::ondemand::value() noexcept(false);
+#endif
+  simdjson_really_inline simdjson_result<size_t> count_elements() & noexcept;
+  simdjson_really_inline simdjson_result<size_t> count_fields() & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at(size_t index) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> begin() & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> end() & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field(std::string_view key) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field(const char *key) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> operator[](std::string_view key) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> operator[](const char *key) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field_unordered(std::string_view key) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> find_field_unordered(const char *key) & noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::json_type> type() noexcept;
+  simdjson_really_inline simdjson_result<bool> is_scalar() noexcept;
+  simdjson_really_inline simdjson_result<const char *> current_location() noexcept;
+  simdjson_really_inline int32_t current_depth() const noexcept;
+  simdjson_really_inline bool is_negative() noexcept;
+  simdjson_really_inline simdjson_result<bool> is_integer() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number_type> get_number_type() noexcept;
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::number> get_number() noexcept;
+  /** @copydoc simdjson_really_inline std::string_view document_reference::raw_json_token() const noexcept */
+  simdjson_really_inline simdjson_result<std::string_view> raw_json_token() noexcept;
+
+  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at_pointer(std::string_view json_pointer) noexcept;
+};
+
+
+} // namespace simdjson
@@ -126,6 +126,7 @@ inline size_t document_stream::size_in_bytes() const noexcept {
 }

 inline size_t document_stream::truncated_bytes() const noexcept {
+  if(error == CAPACITY) { return len - batch_start; }
  return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1];
 }

@@ -137,8 +138,9 @@ simdjson_really_inline document_stream::iterator::iterator(document_stream* _str
  : stream{_stream}, finished{is_end} {
 }

-simdjson_really_inline ondemand::document& document_stream::iterator::operator*() noexcept {
-  return stream->doc;
+simdjson_really_inline simdjson_result<ondemand::document_reference> document_stream::iterator::operator*() noexcept {
+  //if(stream->error) { return stream->error; }
+  return simdjson_result<ondemand::document_reference>(stream->doc, stream->error);
 }

 simdjson_really_inline document_stream::iterator& document_stream::iterator::operator++() noexcept {
@@ -345,7 +347,7 @@ simdjson_really_inline std::string_view document_stream::iterator::source() cons
    cur_struct_index++;
  }

-  return std::string_view(reinterpret_cast<const char*>(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);
+  return std::string_view(reinterpret_cast<const char*>(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);;
 }

 inline error_code document_stream::iterator::error() const noexcept {
@@ -130,7 +130,7 @@ public:
    /**
     * Get the current document (or error).
     */
-    simdjson_really_inline ondemand::document& operator*() noexcept;
+    simdjson_really_inline simdjson_result<ondemand::document_reference> operator*() noexcept;
    /**
     * Advance to the next document (prefix).
     */
@@ -23,7 +23,7 @@ simdjson_really_inline simdjson_result<field> field::start(const value_iterator

 simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> field::unescaped_key() noexcept {
  SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us.
-  simdjson_result<std::string_view> answer = first.unescape(*second.iter._json_iter);
+  simdjson_result<std::string_view> answer = first.unescape(second.iter.string_buf_loc());
  first.consume();
  return answer;
 }
@@ -35,12 +35,13 @@ simdjson_really_inline json_iterator::json_iterator(const uint8_t *buf, ondemand

 {
  logger::log_headers();
+#if SIMDJSON_CHECK_EOF
  assert_more_tokens();
+#endif
 }

 inline void json_iterator::rewind() noexcept {
  token.set_position( root_position() );
-  assert_more_tokens(1);
  logger::log_headers(); // We start again
  _string_buf_loc = parser->string_buf.get();
  _depth = 1;
@@ -52,19 +53,7 @@ inline void json_iterator::rewind() noexcept {
 SIMDJSON_PUSH_DISABLE_WARNINGS
 SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING
 simdjson_warn_unused simdjson_really_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept {
-  /***
-   * WARNING:
-   * Inside an object, a string value is a depth of +1 compared to the object. Yet a key
-   * is at the same depth as the object.
-   * But json_iterator cannot easily tell whether we are pointing at a key or a string value.
-   * Instead, it assumes that if you are pointing at a string, then it is a value, not a key.
-   * To be clear...
-   * the following code assumes that we are *not* pointing at a key. If we are then a bug
-   * will follow. Unfortunately, it is not possible for the json_iterator its to make this
-   * check.
-   */
  if (depth() <= parent_depth) { return SUCCESS; }
-  SIMDJSON_TRY( require_tokens(1) );
  switch (*return_current_and_advance()) {
    // TODO consider whether matching braces is a requirement: if non-matching braces indicates
    // *missing* braces, then future lookups are not in the object/arrays they think they are,
@@ -88,22 +77,21 @@ simdjson_warn_unused simdjson_really_inline error_code json_iterator::skip_child
      if (depth() <= parent_depth) { return SUCCESS; }
 #if SIMDJSON_CHECK_EOF
      // If there are no more tokens, the parent is incomplete.
-      if (at_end_of_input_buffer()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); }
+      if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); }
 #endif // SIMDJSON_CHECK_EOF
      break;
-    /*case '"':
+    case '"':
      if(*peek() == ':') {
-        // we are at a key!!! This is
-        // only possible if someone searched
-        // for a key in an object and the key
-        // was not found but our code then
-        // decided the consume the separating
-        // comma before returning.
+        // We are at a key!!!
+        // This might happen if you just started an object and you skip it immediately.
+        // Performance note: it would be nice to get rid of this check as it is somewhat
+        // expensive.
+        // https://github.com/simdjson/simdjson/issues/1742
        logger::log_value(*this, "key");
-        advance(); // eat up the ':'
+        return_current_and_advance(); // eat up the ':'
        break; // important!!!
      }
-      simdjson_fallthrough;*/
+      simdjson_fallthrough;
    // Anything else must be a scalar value
    default:
      // For the first scalar, we will have incremented depth already, so we decrement it here.
@@ -114,7 +102,7 @@ simdjson_warn_unused simdjson_really_inline error_code json_iterator::skip_child
  }

  // Now that we've considered the first value, we only increment/decrement for arrays/objects
-  while (position() < end_of_input_buffer_position()) {
+  while (position() < end_position()) {
    switch (*return_current_and_advance()) {
      case '[': case '{':
        logger::log_start_value(*this, "skip");
@@ -153,6 +141,10 @@ simdjson_really_inline token_position json_iterator::root_position() const noexc
  return _root;
 }

+simdjson_really_inline void json_iterator::assert_at_document_depth() const noexcept {
+  SIMDJSON_ASSUME( _depth == 1 );
+}
+
 simdjson_really_inline void json_iterator::assert_at_root() const noexcept {
  SIMDJSON_ASSUME( _depth == 1 );
 #ifndef SIMDJSON_CLANG_VISUAL_STUDIO
@@ -163,15 +155,7 @@ simdjson_really_inline void json_iterator::assert_at_root() const noexcept {
 }

 simdjson_really_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept {
-#if SIMDJSON_CHECK_EOF
-  assert_valid_position(token.position() + required_tokens - 1);
-#else
- // We only check that we are at a valid position when SIMDJSON_CHECK_EOF is true,
- // but otherwise, we will still end up with the 'required_tokens' parameter and
- // compilers are bound to complain that it might be 'unused' (rightly so). Hence
- // the following line is used to silence compiler warnings:
- (void)required_tokens;
-#endif
+  assert_valid_position(token._position + required_tokens - 1);
 }

 simdjson_really_inline void json_iterator::assert_valid_position(token_position position) const noexcept {
@@ -181,26 +165,36 @@ simdjson_really_inline void json_iterator::assert_valid_position(token_position
 #endif
 }

-simdjson_really_inline bool json_iterator::at_end_of_input_buffer() const noexcept {
-  return position() == end_of_input_buffer_position();
+simdjson_really_inline bool json_iterator::at_end() const noexcept {
+  return position() == end_position();
 }
-simdjson_really_inline token_position json_iterator::end_of_input_buffer_position() const noexcept {
+simdjson_really_inline token_position json_iterator::end_position() const noexcept {
  uint32_t n_structural_indexes{parser->implementation->n_structural_indexes};
  return &parser->implementation->structural_indexes[n_structural_indexes];
 }

-simdjson_really_inline const uint8_t *json_iterator::end_of_input_buffer() const noexcept {
-  return token.buf + parser->implementation->len;
+inline std::string json_iterator::to_string() const noexcept {
+  if( !is_alive() ) { return "dead json_iterator instance"; }
+  const char * current_structural = reinterpret_cast<const char *>(token.peek());
+  return std::string("json_iterator [ depth : ") + std::to_string(_depth)
+          + std::string(", structural : '") + std::string(current_structural,1)
+          + std::string("', offset : ") + std::to_string(token.current_offset())
+          + std::string("', error : ") + error_message(error)
+          + std::string(" ]");
 }

-inline std::string json_iterator::to_string() const noexcept {
-  if( !is_alive() ) { return "\"dead json_iterator instance\""; }
-  const char * current_structural = reinterpret_cast<const char *>(token.peek());
-  return std::string("{\"name\": \"json_iterator\", \"depth\" : ") + std::to_string(_depth)
-          + std::string(", \"structural\" : \"") + std::string(current_structural,1)
-          + std::string("\", \"offset\" : ") + std::to_string(token.current_offset())
-          + std::string(", \"error\" : \"") + error_message(error)
-          + std::string("\"}");
+inline simdjson_result<const char *> json_iterator::current_location() noexcept {
+  if (!is_alive()) {    // Unrecoverable error
+    if (!at_root()) {
+      return reinterpret_cast<const char *>(token.peek(-1));
+    } else {
+      return reinterpret_cast<const char *>(token.peek());
+    }
+  }
+  if (at_end()) {
+    return OUT_OF_BOUNDS;
+  }
+  return reinterpret_cast<const char *>(token.peek());
 }

 simdjson_really_inline bool json_iterator::is_alive() const noexcept {
@@ -213,48 +207,44 @@ simdjson_really_inline void json_iterator::abandon() noexcept {
 }

 simdjson_really_inline const uint8_t *json_iterator::return_current_and_advance() noexcept {
+#if SIMDJSON_CHECK_EOF
  assert_more_tokens();
+#endif // SIMDJSON_CHECK_EOF
  return token.return_current_and_advance();
 }

-simdjson_really_inline simdjson_result<const uint8_t *> json_iterator::try_return_current_and_advance(uint32_t required_tokens) noexcept {
-  const uint8_t *json = token.return_current_and_advance();
-  // Check this *after* we get the pointer, since getting the pointer is more time-sensitive than the branch.
-  // Also resolves nicely to 0 in the common case of required_tokens == 1.
-  SIMDJSON_TRY( require_tokens(required_tokens - 1) );
-  return json;
-}
-
-simdjson_really_inline error_code json_iterator::require_tokens(simdjson_unused uint32_t required_tokens) noexcept {
-#if SIMDJSON_CHECK_EOF
-  if (position() + required_tokens > end_of_input_buffer_position()) {
-    return report_error(TAPE_ERROR, "Document ended early");
-  }
-#endif
-  return SUCCESS;
-}
 simdjson_really_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept {
  // deliberately done without safety guard:
  return token.peek(0);
 }

 simdjson_really_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept {
+#if SIMDJSON_CHECK_EOF
  assert_more_tokens(delta+1);
+#endif // SIMDJSON_CHECK_EOF
  return token.peek(delta);
 }

 simdjson_really_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept {
+#if SIMDJSON_CHECK_EOF
  assert_more_tokens(delta+1);
+#endif // #if SIMDJSON_CHECK_EOF
  return token.peek_length(delta);
 }

 simdjson_really_inline const uint8_t *json_iterator::peek(token_position position) const noexcept {
-  assert_valid_position(position);
+  // todo: currently we require end-of-string buffering, but the following
+  // assert_valid_position should be turned on if/when we lift that condition.
+  // assert_valid_position(position);
+  // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF
+  // is ON by default, we have no choice but to disable it for real with a comment.
  return token.peek(position);
 }

 simdjson_really_inline uint32_t json_iterator::peek_length(token_position position) const noexcept {
+#if SIMDJSON_CHECK_EOF
  assert_valid_position(position);
+#endif // SIMDJSON_CHECK_EOF
  return token.peek_length(position);
 }

@@ -332,6 +322,22 @@ simdjson_really_inline error_code json_iterator::optional_error(error_code _erro
  return _error;
 }

+template<int N>
+simdjson_warn_unused simdjson_really_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t (&tmpbuf)[N]) noexcept {
+  // Let us guard against silly cases:
+  if((N < max_len) || (N == 0)) { return false; }
+  // Truncate whitespace to fit the buffer.
+  if (max_len > N-1) {
+    // if (jsoncharutils::is_not_structural_or_whitespace(json[N-1])) { return false; }
+    max_len = N-1;
+  }
+
+  // Copy to the buffer.
+  std::memcpy(tmpbuf, json, max_len);
+  tmpbuf[max_len] = ' ';
+  return true;
+}
+
 } // namespace ondemand
 } // namespace SIMDJSON_IMPLEMENTATION
 } // namespace simdjson
@@ -88,16 +88,19 @@ public:
   * Get the root value iterator
   */
  simdjson_really_inline token_position root_position() const noexcept;
-
  /**
-   * Assert if the iterator is not at the start
+   * Assert that we are at the document depth (== 1)
+   */
+  simdjson_really_inline void assert_at_document_depth() const noexcept;
+  /**
+   * Assert that we are at the root of the document
   */
  simdjson_really_inline void assert_at_root() const noexcept;

  /**
-   * Tell whether the iterator is at the EOF mark (end of the input buffer)
+   * Tell whether the iterator is at the EOF mark
   */
-  simdjson_really_inline bool at_end_of_input_buffer() const noexcept;
+  simdjson_really_inline bool at_end() const noexcept;

  /**
   * Tell whether the iterator is live (has not been moved).
@@ -114,22 +117,6 @@ public:
   */
  simdjson_really_inline const uint8_t *return_current_and_advance() noexcept;

-  /**
-   * Advance the current token by one, without modifying depth.
-   *
-   * @param requiremed_tokens The number of tokens that must exist. Only advances one token.
-   *
-   * @error TAPE_ERROR If there are not at least required_tokens tokens remaining.
-   */
-  simdjson_really_inline simdjson_result<const uint8_t *> try_return_current_and_advance(uint32_t required_tokens=1) noexcept;
-
-  /**
-   * Return an error unless there are enough tokens left.
-   *
-   * @param required_tokens The number of tokens that must exist.
-   * @error TAPE_ERROR If there are not at least required_tokens tokens remaining.
-   */
-  simdjson_really_inline error_code require_tokens(uint32_t required_tokens=1) noexcept;
  /**
   * Assert that there are at least the given number of tokens left.
   *
@@ -161,23 +148,26 @@ public:
   * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token.
   */
  simdjson_really_inline uint32_t peek_length(int32_t delta=0) const noexcept;
-  /**
-   * Get the JSON text for a given token.
-   *
-   * This is not null-terminated; it is a view into the JSON.
-   *
-   * @param position The position of the token to retrieve.
-   */
-  simdjson_really_inline const uint8_t *peek(token_position position) const noexcept;
  /**
   * Get a pointer to the current location in the input buffer.
   *
   * This is not null-terminated; it is a view into the JSON.
   *
   * You may be pointing outside of the input buffer: it is not generally
-   * safe to derefence this pointer.
+   * safe to dereference this pointer.
   */
  simdjson_really_inline const uint8_t *unsafe_pointer() const noexcept;
+  /**
+   * Get the JSON text for a given token.
+   *
+   * This is not null-terminated; it is a view into the JSON.
+   *
+   * @param position The position of the token to retrieve.
+   *
+   * TODO consider a string_view, assuming the length will get stripped out by the optimizer when
+   * it isn't used ...
+   */
+  simdjson_really_inline const uint8_t *peek(token_position position) const noexcept;
  /**
   * Get the maximum length of the JSON text for the current token (or relative).
   *
@@ -226,7 +216,7 @@ public:
  simdjson_really_inline uint8_t *&string_buf_loc() noexcept;

  /**
-   * Report an error, preventing further iteration.
+   * Report an unrecoverable error, preventing further iteration.
   *
   * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD.
   * @param message An error message to report with the error.
@@ -240,6 +230,8 @@ public:
   */
  simdjson_really_inline error_code optional_error(error_code error, const char *message) noexcept;

+  template<int N> simdjson_warn_unused simdjson_really_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t (&tmpbuf)[N]) noexcept;
+
  simdjson_really_inline token_position position() const noexcept;
  simdjson_really_inline void reenter_child(token_position position, depth_t child_depth) noexcept;
 #ifdef SIMDJSON_DEVELOPMENT_CHECKS
@@ -248,6 +240,12 @@ public:
 #endif
  /* Useful for debugging and logging purposes. */
  inline std::string to_string() const noexcept;
+
+  /**
+   * Returns the current location in the document if in bounds.
+   */
+  inline simdjson_result<const char *> current_location() noexcept;
+
  /**
   * Updates this json iterator so that it is back at the beginning of the document,
   * as if it had just been created.
@@ -258,9 +256,9 @@ protected:
  /// The last token before the end
  simdjson_really_inline token_position last_position() const noexcept;
  /// The token *at* the end. This points at gibberish and should only be used for comparison.
-  simdjson_really_inline token_position end_of_input_buffer_position() const noexcept;
+  simdjson_really_inline token_position end_position() const noexcept;
  /// The end of the buffer.
-  simdjson_really_inline const uint8_t *end_of_input_buffer() const noexcept;
+  simdjson_really_inline token_position end() const noexcept;

  friend class document;
  friend class document_stream;
@@ -15,12 +15,93 @@ inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept {
    return out;
 }

+inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept {
+    switch (type) {
+        case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break;
+        case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break;
+        case number_type::floating_point_number: out << "floating-point number (binary64)"; break;
+        default: SIMDJSON_UNREACHABLE();
+    }
+    return out;
+}
 #if SIMDJSON_EXCEPTIONS
 inline std::ostream& operator<<(std::ostream& out, simdjson_result<json_type> &type) noexcept(false) {
    return out << type.value();
 }
 #endif

+
+
+simdjson_really_inline number_type number::get_number_type() const noexcept {
+  return type;
+}
+
+simdjson_really_inline bool number::is_uint64() const noexcept {
+  return get_number_type() == number_type::unsigned_integer;
+}
+
+simdjson_really_inline uint64_t number::get_uint64() const noexcept {
+  return payload.unsigned_integer;
+}
+
+simdjson_really_inline number::operator uint64_t() const noexcept {
+  return get_uint64();
+}
+
+
+simdjson_really_inline bool number::is_int64() const noexcept {
+  return get_number_type() == number_type::signed_integer;
+}
+
+simdjson_really_inline int64_t number::get_int64() const noexcept {
+  return payload.signed_integer;
+}
+
+simdjson_really_inline number::operator int64_t() const noexcept {
+  return get_int64();
+}
+
+simdjson_really_inline bool number::is_double() const noexcept {
+    return get_number_type() == number_type::floating_point_number;
+}
+
+simdjson_really_inline double number::get_double() const noexcept {
+  return payload.floating_point_number;
+}
+
+simdjson_really_inline number::operator double() const noexcept {
+  return get_double();
+}
+
+simdjson_really_inline double number::as_double() const noexcept {
+  if(is_double()) {
+    return payload.floating_point_number;
+  }
+  if(is_int64()) {
+    return double(payload.signed_integer);
+  }
+  return double(payload.unsigned_integer);
+}
+
+simdjson_really_inline void number::append_s64(int64_t value) noexcept {
+  payload.signed_integer = value;
+  type = number_type::signed_integer;
+}
+
+simdjson_really_inline void number::append_u64(uint64_t value) noexcept {
+  payload.unsigned_integer = value;
+  type = number_type::unsigned_integer;
+}
+
+simdjson_really_inline void number::append_double(double value) noexcept {
+  payload.floating_point_number = value;
+  type = number_type::floating_point_number;
+}
+
+simdjson_really_inline void number::skip_double() noexcept {
+  type = number_type::floating_point_number;
+}
+
 } // namespace ondemand
 } // namespace SIMDJSON_IMPLEMENTATION
 } // namespace simdjson
@@ -1,7 +1,6 @@
 namespace simdjson {
 namespace SIMDJSON_IMPLEMENTATION {
 namespace ondemand {
-
 /**
 * The type of a JSON value.
 */
@@ -15,6 +14,105 @@ enum class json_type {
    null     ///< A JSON null    (null)
 };

+class value_iterator;
+
+/**
+ * A type representing a JSON number.
+ * The design of the struct is deliberately straight-forward. All
+ * functions return standard values with no error check.
+ */
+struct number {
+
+  /**
+   * return the automatically determined type of
+   * the number: number_type::floating_point_number,
+   * number_type::signed_integer or number_type::unsigned_integer.
+   *
+   *    enum class number_type {
+   *        floating_point_number=1, /// a binary64 number
+   *        signed_integer,          /// a signed integer that fits in a 64-bit word using two's complement
+   *        unsigned_integer         /// a positive integer larger or equal to 1<<63
+   *    };
+   */
+  simdjson_really_inline number_type get_number_type() const noexcept;
+  /**
+   * return true if the automatically determined type of
+   * the number is number_type::unsigned_integer.
+   */
+  simdjson_really_inline bool is_uint64() const noexcept;
+  /**
+   * return the value as a uint64_t, only valid if is_uint64() is true.
+   */
+  simdjson_really_inline uint64_t get_uint64() const noexcept;
+  simdjson_really_inline operator uint64_t() const noexcept;
+
+  /**
+   * return true if the automatically determined type of
+   * the number is number_type::signed_integer.
+   */
+  simdjson_really_inline bool is_int64() const noexcept;
+  /**
+   * return the value as a int64_t, only valid if is_int64() is true.
+   */
+  simdjson_really_inline int64_t get_int64() const noexcept;
+  simdjson_really_inline operator int64_t() const noexcept;
+
+
+  /**
+   * return true if the automatically determined type of
+   * the number is number_type::floating_point_number.
+   */
+  simdjson_really_inline bool is_double() const noexcept;
+  /**
+   * return the value as a double, only valid if is_double() is true.
+   */
+  simdjson_really_inline double get_double() const noexcept;
+  simdjson_really_inline operator double() const noexcept;
+
+  /**
+   * Convert the number to a double. Though it always succeed, the conversion
+   * may be lossy if the number cannot be represented exactly.
+   */
+  simdjson_really_inline double as_double() const noexcept;
+
+
+protected:
+  /**
+   * The next block of declaration is designed so that we can call the number parsing
+   * functions on a number type. They are protected and should never be used outside
+   * of the core simdjson library.
+   */
+  friend class value_iterator;
+  template<typename W>
+  friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer);
+  template<typename W>
+  friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer);
+  template<typename W>
+  friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer);
+  /** Store a signed 64-bit value to the number. */
+  simdjson_really_inline void append_s64(int64_t value) noexcept;
+  /** Store an unsigned 64-bit value to the number. */
+  simdjson_really_inline void append_u64(uint64_t value) noexcept;
+  /** Store a double value to the number. */
+  simdjson_really_inline void append_double(double value) noexcept;
+  /** Specifies that the value is a double, but leave it undefined. */
+  simdjson_really_inline void skip_double() noexcept;
+  /**
+   * End of friend declarations.
+   */
+
+  /**
+   * Our attributes are a union type (size = 64 bits)
+   * followed by a type indicator.
+   */
+  union {
+    double floating_point_number;
+    int64_t signed_integer;
+    uint64_t unsigned_integer;
+  } payload{0};
+  number_type type{number_type::signed_integer};
+};
+
 /**
 * Write the JSON type to the output stream
 *
@@ -22,6 +120,7 @@ enum class json_type {
 * @param type The json_type.
 */
 inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept;
+inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept;

 #if SIMDJSON_EXCEPTIONS
 /**
@@ -85,7 +85,7 @@ inline void log_headers() noexcept {
      printf("# skip says 'this is a structural or value I am skipping'\n");
      printf("# +/-skip says 'this is a start/end array or object I am skipping'\n");
      printf("#\n");
-      printf("# The identation of the terms (array, string,...) indicates the depth,\n");
+      printf("# The indentation of the terms (array, string,...) indicates the depth,\n");
      printf("# in addition to the depth being displayed.\n");
      printf("#\n");
      printf("# Every token in the document has a single depth determined by the tokens before it,\n");
@@ -124,7 +124,6 @@ inline void log_headers() noexcept {
 inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept {
  log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail);
 }
-
 inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept {
  if (LOG_ENABLED) {
    const int indent = depth*2;
@@ -42,9 +42,7 @@ simdjson_really_inline simdjson_result<object> object::start_root(value_iterator
  return object(iter);
 }
 simdjson_really_inline error_code object::consume() noexcept {
-  bool at_key;
-  SIMDJSON_TRY( iter.is_at_key().get(at_key) );
-  if(at_key) {
+  if(iter.is_at_key()) {
    /**
     * whenever you are pointing at a key, calling skip_child() is
     * unsafe because you will hit a string and you will assume that
@@ -73,12 +71,10 @@ simdjson_really_inline simdjson_result<std::string_view> object::raw_json() noex
  const uint8_t * starting_point{iter.peek_start()};
  auto error = consume();
  if(error) { return error; }
-  // After 'consume()', we could be left pointing just beyond the document, but that
-  // is ok because we are not going to dereference the final pointer position, we just
-  // use it to compute the length in bytes.
-  const uint8_t * final_point{iter._json_iter->unsafe_pointer()};
+  const uint8_t * final_point{iter._json_iter->peek(0)};
  return std::string_view(reinterpret_cast<const char*>(starting_point), size_t(final_point - starting_point));
 }
+
 simdjson_really_inline simdjson_result<object> object::started(value_iterator &iter) noexcept {
  SIMDJSON_TRY( iter.started_object().error() );
  return object(iter);
@@ -143,6 +139,29 @@ inline simdjson_result<value> object::at_pointer(std::string_view json_pointer)
  return child;
 }

+simdjson_really_inline simdjson_result<size_t> object::count_fields() & noexcept {
+  size_t count{0};
+  // Important: we do not consume any of the values.
+  for(simdjson_unused auto v : *this) { count++; }
+  // The above loop will always succeed, but we want to report errors.
+  if(iter.error()) { return iter.error(); }
+  // We need to move back at the start because we expect users to iterate through
+  // the object after counting the number of elements.
+  iter.reset_object();
+  return count;
+}
+
+simdjson_really_inline simdjson_result<bool> object::is_empty() & noexcept {
+  bool is_not_empty;
+  auto error = iter.reset_object().get(is_not_empty);
+  if(error) { return error; }
+  return !is_not_empty;
+}
+
+simdjson_really_inline simdjson_result<bool> object::reset() & noexcept {
+  return iter.reset_object();
+}
+
 } // namespace ondemand
 } // namespace SIMDJSON_IMPLEMENTATION
 } // namespace simdjson
@@ -192,4 +211,19 @@ simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value>
  return first.at_pointer(json_pointer);
 }

+inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object>::reset() noexcept {
+  if (error()) { return error(); }
+  return first.reset();
+}
+
+inline simdjson_result<bool> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object>::is_empty() noexcept {
+  if (error()) { return error(); }
+  return first.is_empty();
+}
+
+simdjson_really_inline  simdjson_result<size_t> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object>::count_fields() & noexcept {
+  if (error()) { return error(); }
+  return first.count_fields();
+}
+
 } // namespace simdjson
@@ -37,6 +37,17 @@ public:
   * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys.
   * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`.
   *
+   * You must consume the fields on an object one at a time. A request for a new key
+   * invalidates previous field values: it makes them unsafe. E.g., the array
+   * given by content["bids"].get_array() should not be accessed after you have called
+   * content["asks"].get_array(). You can detect such mistakes by first compiling and running
+   * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an
+   * OUT_OF_ORDER_ITERATION error is generated.
+   *
+   * You are expected to access keys only once. You should access the value corresponding to a
+   * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string()
+   * is an error.
+   *
   * @param key The key to look up.
   * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object.
   */
@@ -63,6 +74,16 @@ public:
   * If you have multiple fields with a matching key ({"x": 1,  "x": 1}) be mindful
   * that only one field is returned.
   *
+   * You must consume the fields on an object one at a time. A request for a new key
+   * invalidates previous field values: it makes them unsafe. E.g., the array
+   * given by content["bids"].get_array() should not be accessed after you have called
+   * content["asks"].get_array(). You can detect such mistakes by first compiling and running
+   * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an
+   * OUT_OF_ORDER_ITERATION error is generated.
+   *
+   * You are expected to access keys only once. You should access the value corresponding to a key
+   * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error.
+   *
   * @param key The key to look up.
   * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object.
   */
@@ -97,7 +118,7 @@ public:
   * instance: there is no rewind and no invalidation.
   *
   * You may call at_pointer more than once on an object, but each time the pointer is advanced
-   * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceeding
+   * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding
   * key (as well as the current key) can no longer be used with following JSON pointer calls.
   *
   * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching.
@@ -110,9 +131,44 @@ public:
   */
  inline simdjson_result<value> at_pointer(std::string_view json_pointer) noexcept;

+  /**
+   * Reset the iterator so that we are pointing back at the
+   * beginning of the object. You should still consume values only once even if you
+   * can iterate through the object more than once. If you unescape a string within
+   * the object more than once, you have unsafe code. Note that rewinding an object
+   * means that you may need to reparse it anew: it is not a free operation.
+   *
+   * @returns true if the object contains some elements (not empty)
+   */
+  inline simdjson_result<bool> reset() & noexcept;
+  /**
+   * This method scans the beginning of the object and checks whether the
+   * object is empty.
+   * The runtime complexity is constant time. After
+   * calling this function, if successful, the object is 'rewinded' at its
+   * beginning as if it had never been accessed. If the JSON is malformed (e.g.,
+   * there is a missing comma), then an error is returned and it is no longer
+   * safe to continue.
+   */
+  inline simdjson_result<bool> is_empty() & noexcept;
+  /**
+   * This method scans the object and counts the number of key-value pairs.
+   * The count_fields method should always be called before you have begun
+   * iterating through the object: it is expected that you are pointing at
+   * the beginning of the object.
+   * The runtime complexity is linear in the size of the object. After
+   * calling this function, if successful, the object is 'rewinded' at its
+   * beginning as if it had never been accessed. If the JSON is malformed (e.g.,
+   * there is a missing comma), then an error is returned and it is no longer
+   * safe to continue.
+   *
+   * To check that an object is empty, it is more performant to use
+   * the is_empty() method.
+   */
+  simdjson_really_inline simdjson_result<size_t> count_fields() & noexcept;
  /**
   * Consumes the object and returns a string_view instance corresponding to the
-   * object as represented in JSON. It points inside the original byte array containg
+   * object as represented in JSON. It points inside the original byte array containing
   * the JSON document.
   */
  simdjson_really_inline simdjson_result<std::string_view> raw_json() noexcept;
@@ -159,6 +215,10 @@ public:
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> operator[](std::string_view key) & noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> operator[](std::string_view key) && noexcept;
  simdjson_really_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> at_pointer(std::string_view json_pointer) noexcept;
+  inline simdjson_result<bool> reset() noexcept;
+  inline simdjson_result<bool> is_empty() noexcept;
+  inline simdjson_result<size_t> count_fields() & noexcept;
+
 };

 } // namespace simdjson
@@ -21,32 +21,24 @@ simdjson_warn_unused simdjson_really_inline error_code parser::allocate(size_t n
    SIMDJSON_TRY( implementation->set_capacity(new_capacity) );
    SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) );
  } else {
-    SIMDJSON_TRY( simdjson::active_implementation->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) );
+    SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) );
  }
  _capacity = new_capacity;
  _max_depth = new_max_depth;
  return SUCCESS;
 }

+simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(padded_string_view json) & noexcept {
+  if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; }

-simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(const char *json, size_t len) & noexcept {
  // Allocate if needed
-  if (capacity() < len || !string_buf) {
-    SIMDJSON_TRY( allocate(len, max_depth()) );
+  if (capacity() < json.length() || !string_buf) {
+    SIMDJSON_TRY( allocate(json.length(), max_depth()) );
  }

  // Run stage 1.
-  SIMDJSON_TRY( implementation->stage1(reinterpret_cast<const uint8_t *>(json), len, stage1_mode::regular) );
-  return document::start({ reinterpret_cast<const uint8_t *>(json), this });
-}
-
-simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(std::string_view view) & noexcept {
-  return iterate(view.data(), view.size());
-}
-
-simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(padded_string_view json) & noexcept {
-  // Iterate does not require any padding!!!
-  return iterate(json.data(), json.size());
+  SIMDJSON_TRY( implementation->stage1(reinterpret_cast<const uint8_t *>(json.data()), json.length(), stage1_mode::regular) );
+  return document::start({ reinterpret_cast<const uint8_t *>(json.data()), this });
 }

 simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(const char *json, size_t len, size_t allocated) & noexcept {
@@ -62,7 +54,7 @@ simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::it
 }

 simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(const std::string &json) & noexcept {
-  return iterate(json.data(), json.size());
+  return iterate(padded_string_view(json));
 }

 simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(const simdjson_result<padded_string_view> &result) & noexcept {
@@ -72,11 +64,6 @@ simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::it
  return iterate(json);
 }

-simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(const padded_string & json) & noexcept {
-  // We do not use the padding at all anymore.
-  return iterate(json.data(), json.size());
-}
-
 simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::iterate(const simdjson_result<padded_string> &result) & noexcept {
  // We don't presently have a way to temporarily get a const T& from a simdjson_result<T> without throwing an exception
  SIMDJSON_TRY( result.error() );
@@ -85,8 +72,7 @@ simdjson_warn_unused simdjson_really_inline simdjson_result<document> parser::it
 }

 simdjson_warn_unused simdjson_really_inline simdjson_result<json_iterator> parser::iterate_raw(padded_string_view json) & noexcept {
-  // Iterate does not require any padding!!!
-  // if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; }
+  if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; }

  // Allocate if needed
  if (capacity() < json.length()) {
@@ -111,9 +97,6 @@ inline simdjson_result<document_stream> parser::iterate_many(const std::string &
 inline simdjson_result<document_stream> parser::iterate_many(const padded_string &s, size_t batch_size) noexcept {
  return iterate_many(s.data(), s.length(), batch_size);
 }
-inline simdjson_result<document_stream> parser::iterate_many(std::string_view view, size_t batch_size) noexcept {
-  return iterate_many(view.data(), view.length(), batch_size);
-}

 simdjson_really_inline size_t parser::capacity() const noexcept {
  return _capacity;
@@ -54,7 +54,10 @@ public:
   *   ondemand::parser parser;
   *   document doc = parser.iterate(json);
   *
-   * The input buffer does not need to be padded.
+   * It is expected that the content is a valid UTF-8 file, containing a valid JSON document.
+   * Otherwise the iterate method may return an error. In particular, the whole input should be
+   * valid: we do not attempt to tolerate incorrect content either before or after a JSON
+   * document.
   *
   * ### IMPORTANT: Validate what you use
   *
@@ -72,11 +75,17 @@ public:
   * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before
   * you call parse() again or destroy the parser.
   *
+   * ### REQUIRED: Buffer Padding
+   *
+   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
+   * those bytes are initialized to, as long as they are allocated.
   *
   * @param json The JSON to parse.
   * @param len The length of the JSON.
+   * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING).
   *
   * @return The document, or an error:
+   *         - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes.
   *         - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory
   *           allocation fails.
   *         - EMPTY if the document is all whitespace.
@@ -84,68 +93,59 @@ public:
   *         - UNESCAPED_CHARS if a string contains control characters that must be escaped
   *         - UNCLOSED_STRING if there is an unclosed string in the document.
   */
-  simdjson_warn_unused simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-  /** @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept */
-  simdjson_warn_unused simdjson_result<document> iterate(std::string_view view) & noexcept;
-  /** @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept */
-  simdjson_warn_unused simdjson_result<document> iterate(const std::string &json) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
  simdjson_warn_unused simdjson_result<document> iterate(padded_string_view json) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
-  simdjson_warn_unused simdjson_result<document> iterate(const padded_string & json) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
  simdjson_warn_unused simdjson_result<document> iterate(const char *json, size_t len, size_t capacity) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
  simdjson_warn_unused simdjson_result<document> iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
  simdjson_warn_unused simdjson_result<document> iterate(std::string_view json, size_t capacity) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
+  simdjson_warn_unused simdjson_result<document> iterate(const std::string &json) & noexcept;
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
  simdjson_warn_unused simdjson_result<document> iterate(const simdjson_result<padded_string> &json) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
  simdjson_warn_unused simdjson_result<document> iterate(const simdjson_result<padded_string_view> &json) & noexcept;
-
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
+  /** @overload simdjson_result<document> iterate(padded_string_view json) & noexcept */
  simdjson_warn_unused simdjson_result<document> iterate(padded_string &&json) & noexcept = delete;
-  /**
-   * @overload simdjson_result<document> iterate(const char *json, size_t len) & noexcept;
-   * iterate does not require padding, this function is kept for backward compatibility and convenience.
-   **/
-  simdjson_warn_unused simdjson_result<document> iterate(std::string &&json) & noexcept = delete;
-

  /**
   * @private
+   *
+   * Start iterating an on-demand JSON document.
+   *
+   *   ondemand::parser parser;
+   *   json_iterator doc = parser.iterate(json);
+   *
+   * ### IMPORTANT: Buffer Lifetime
+   *
+   * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as
+   * long as the document iteration.
+   *
+   * ### IMPORTANT: Document Lifetime
+   *
+   * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during
+   * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before
+   * you call parse() again or destroy the parser.
+   *
+   * The ondemand::document instance holds the iterator. The document must remain in scope
+   * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array.
+   *
+   * ### REQUIRED: Buffer Padding
+   *
+   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
+   * those bytes are initialized to, as long as they are allocated.
+   *
+   * @param json The JSON to parse.
+   *
+   * @return The iterator, or an error:
+   *         - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes.
+   *         - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory
+   *           allocation fails.
+   *         - EMPTY if the document is all whitespace.
+   *         - UTF8_ERROR if the document is not valid UTF-8.
+   *         - UNESCAPED_CHARS if a string contains control characters that must be escaped
+   *         - UNCLOSED_STRING if there is an unclosed string in the document.
   */
  simdjson_warn_unused simdjson_result<json_iterator> iterate_raw(padded_string_view json) & noexcept;

@@ -153,7 +153,7 @@ public:
  /**
   * Parse a buffer containing many JSON documents.
   *
-   *   std::string json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )";
+   *   auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded;
   *   ondemand::parser parser;
   *   ondemand::document_stream docs = parser.iterate_many(json);
   *   for (auto & doc : docs) {
@@ -164,25 +164,32 @@ public:
   * No copy of the input buffer is made.
   *
   * The function is lazy: it may be that no more than one JSON document at a time is parsed.
-
   *
   * The caller is responsabile to ensure that the input string data remains unchanged and is
   * not deleted during the loop.
+   *
   * ### Format
   *
   * The buffer must contain a series of one or more JSON documents, concatenated into a single
-   * buffer, separated by whitespace. It effectively parses until it has a fully valid document,
+   * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document,
   * then starts parsing the next document at that point. (It does this with more parallelism and
   * lookahead than you might think, though.)
   *
   * documents that consist of an object or array may omit the whitespace between them, concatenating
-   * with no separator. documents that consist of a single primitive (i.e. documents that are not
-   * arrays or objects) MUST be separated with whitespace.
+   * with no separator. Documents that consist of a single primitive (i.e. documents that are not
+   * arrays or objects) MUST be separated with ASCII whitespace.
+   *
+   * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8).
   *
   * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse.
-   * Setting batch_size to excessively large or excesively small values may impact negatively the
+   * Setting batch_size to excessively large or excessively small values may impact negatively the
   * performance.
   *
+   * ### REQUIRED: Buffer Padding
+   *
+   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
+   * those bytes are initialized to, as long as they are allocated.
+   *
   * ### Threads
   *
   * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the
@@ -205,7 +212,6 @@ public:
   *         - other json errors if parsing fails. You should not rely on these errors to always the same for the
   *           same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware).
   */
-  inline simdjson_result<document_stream> iterate_many(std::string_view view, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept;
  inline simdjson_result<document_stream> iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept;
  /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */
  inline simdjson_result<document_stream> iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept;
@@ -6,9 +6,8 @@ namespace ondemand {
 simdjson_really_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {}

 simdjson_really_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast<const char *>(buf); }
-
-simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> raw_json_string::unescape(uint8_t *&dst, const uint8_t *buf_end) const noexcept {
-  uint8_t *end = stringparsing::parse_string(buf, dst, buf_end);
+simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> raw_json_string::unescape(uint8_t *&dst) const noexcept {
+  uint8_t *end = stringparsing::parse_string(buf, dst);
  if (!end) { return STRING_ERROR; }
  std::string_view result(reinterpret_cast<const char *>(dst), end-dst);
  dst = end;
@@ -52,19 +51,17 @@ simdjson_really_inline bool raw_json_string::is_free_from_unescaped_quote(const
 }


-simdjson_really_inline bool raw_json_string::unsafe_is_equal(size_t max_key_length_including_final_quote, std::string_view target) const noexcept {
+simdjson_really_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept {
  // If we are going to call memcmp, then we must know something about the length of the raw_json_string.
-  if(max_key_length_including_final_quote <= target.size()) { return false; }
-  // It is now safe to read in [0, target.size()].
-  return (raw()[target.size()] == '"') && (memcmp(raw(), target.data(), target.size()) == 0);
+  return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size());
 }

 simdjson_really_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept {
  // Assumptions: does not contain unescaped quote characters, and
  // the raw content is quote terminated within a valid JSON string.
-  // if(target.size() <= SIMDJSON_PADDING) {
-  //  return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size());
-  // }
+  if(target.size() <= SIMDJSON_PADDING) {
+    return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size());
+  }
  const char * r{raw()};
  size_t pos{0};
  for(;pos < target.size();pos++) {
@@ -153,7 +150,7 @@ simdjson_unused simdjson_really_inline bool operator!=(std::string_view c, const


 simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> raw_json_string::unescape(json_iterator &iter) const noexcept {
-  return unescape(iter.string_buf_loc(), iter.end_of_input_buffer());
+  return unescape(iter.string_buf_loc());
 }


@@ -186,9 +183,9 @@ simdjson_really_inline simdjson_result<const char *> simdjson_result<SIMDJSON_IM
  if (error()) { return error(); }
  return first.raw();
 }
-simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string>::unescape(uint8_t *&dst, const uint8_t *buf_end) const noexcept {
+simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string>::unescape(uint8_t *&dst) const noexcept {
  if (error()) { return error(); }
-  return first.unescape(dst, buf_end);
+  return first.unescape(dst);
 }
 simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string>::unescape(SIMDJSON_IMPLEMENTATION::ondemand::json_iterator &iter) const noexcept {
  if (error()) { return error(); }
@@ -53,11 +53,8 @@ public:
   * This compares the current instance to the std::string_view target: returns true if
   * they are byte-by-byte equal (no escaping is done) on target.size() characters,
   * and if the raw_json_string instance has a quote character at byte index target.size().
-   * We never read more than max_key_length_including_final_quote bytes in the raw_json_string instance.
-   * If max_key_length_including_final_quote is smaller than target.size() + 1, this will return false.
-   *
-   * max_key_length_including_final_quote is the maximal key length in bytes, not including
-   * the leading quote.
+   * We never read more than length + 1 bytes in the raw_json_string instance.
+   * If length is smaller than target.size(), this will return false.
   *
   * The std::string_view instance may contain any characters. However, the caller
   * is responsible for setting length so that length bytes may be read in the
@@ -66,7 +63,7 @@ public:
   * Performance: the comparison may be done using memcmp which may be efficient
   * for long strings.
   */
-  simdjson_really_inline bool unsafe_is_equal(size_t max_key_length_including_final_quote, std::string_view target) const noexcept;
+  simdjson_really_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept;

  /**
   * This compares the current instance to the std::string_view target: returns true if
@@ -143,13 +140,10 @@ private:
   * @param dst A pointer to a buffer at least large enough to write this string as well as a \0.
   *            dst will be updated to the next unused location (just after the \0 written out at
   *            the end of this string).
-   * @param buf_end A pointer to the end of the input JSON you passed to iterate(). This is
-   *            used to prevent overruns, since simdjson normally reads (but does not use) past
-   *            the end quote when parsing a string for performance reasons.
   * @return A string_view pointing at the unescaped string in dst
   * @error STRING_ERROR if escapes are incorrect.
   */
-  simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> unescape(uint8_t *&dst, const uint8_t *buf_end) const noexcept;
+  simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> unescape(uint8_t *&dst) const noexcept;
  /**
   * Unescape this JSON string, replacing \\ with \, \n with newline, etc.
   *
@@ -194,7 +188,7 @@ public:
  simdjson_really_inline ~simdjson_result() noexcept = default; ///< @private

  simdjson_really_inline simdjson_result<const char *> raw() const noexcept;
-  simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> unescape(uint8_t *&dst, const uint8_t *buf_end) const noexcept;
+  simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> unescape(uint8_t *&dst) const noexcept;
  simdjson_really_inline simdjson_warn_unused simdjson_result<std::string_view> unescape(SIMDJSON_IMPLEMENTATION::ondemand::json_iterator &iter) const noexcept;
 };

@@ -20,6 +20,13 @@ inline simdjson_result<std::string_view> to_json_string(SIMDJSON_IMPLEMENTATION:
  return trim(v);
 }

+inline simdjson_result<std::string_view> to_json_string(SIMDJSON_IMPLEMENTATION::ondemand::document_reference& x) noexcept {
+  std::string_view v;
+  auto error = x.raw_json().get(v);
+  if(error) {return error; }
+  return trim(v);
+}
+
 inline simdjson_result<std::string_view> to_json_string(SIMDJSON_IMPLEMENTATION::ondemand::value& x) noexcept {
  /**
   * If we somehow receive a value that has already been consumed,
@@ -66,30 +73,33 @@ inline simdjson_result<std::string_view> to_json_string(SIMDJSON_IMPLEMENTATION:
  return trim(v);
 }

-#if SIMDJSON_EXCEPTIONS
-
 inline simdjson_result<std::string_view> to_json_string(simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document> x) {
  if (x.error()) { return x.error(); }
-  return to_json_string(x.value());
+  return to_json_string(x.value_unsafe());
+}
+
+inline simdjson_result<std::string_view> to_json_string(simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::document_reference> x) {
+  if (x.error()) { return x.error(); }
+  return to_json_string(x.value_unsafe());
 }

 inline simdjson_result<std::string_view> to_json_string(simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> x) {
  if (x.error()) { return x.error(); }
-  return to_json_string(x.value());
+  return to_json_string(x.value_unsafe());
 }

 inline simdjson_result<std::string_view> to_json_string(simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object> x) {
  if (x.error()) { return x.error(); }
-  return to_json_string(x.value());
+  return to_json_string(x.value_unsafe());
 }

 inline simdjson_result<std::string_view> to_json_string(simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array> x) {
  if (x.error()) { return x.error(); }
-  return to_json_string(x.value());
+  return to_json_string(x.value_unsafe());
 }
-#endif
 } // namespace simdjson

+namespace simdjson { namespace SIMDJSON_IMPLEMENTATION { namespace ondemand {

 #if SIMDJSON_EXCEPTIONS
 inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_IMPLEMENTATION::ondemand::value x) {
@@ -153,7 +163,20 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_IMPLEMENTA
    throw simdjson::simdjson_error(error);
  }
 }
-inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::document> x) {
+inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_IMPLEMENTATION::ondemand::document_reference& value)  {
+  std::string_view v;
+  auto error = simdjson::to_json_string(value).get(v);
+  if(error == simdjson::SUCCESS) {
+    return (out << v);
+  } else {
+    throw simdjson::simdjson_error(error);
+  }
+}
+inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::document>&& x) {
+  if (x.error()) { throw simdjson::simdjson_error(x.error()); }
+  return (out << x.value());
+}
+inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::document_reference>&& x) {
  if (x.error()) { throw simdjson::simdjson_error(x.error()); }
  return (out << x.value());
 }
@@ -194,3 +217,4 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_IMPLEMENTA
  }
 }
 #endif
+}}} // namespace simdjson::SIMDJSON_IMPLEMENTATION::ondemand
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Daniel Lemire	3e777c1759	This is a release candidate for issue 1831. (#1832 ) Patch for GCC 8.	2022-06-02 09:19:30 -04:00
Daniel Lemire	a410c723c8	Patch release.	2022-05-26 16:25:57 -04:00
Daniel Lemire	f91a1ae07e	Let us time minify and make sure AVX-512 is used by default. (#1830 ) * 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.	2022-05-26 16:15:49 -04:00
Daniel Lemire	c3954b1fb8	Update README.md	2022-05-25 17:25:01 -04:00
Daniel Lemire	ce74ece545	Preparing release.	2022-05-25 11:43:06 -04:00
Daniel Lemire	dd4dce848e	Update CONTRIBUTORS	2022-05-25 11:24:40 -04:00
Daniel Lemire	e8f370b085	Basic AVX-512 implementation (icelake or better) (#1813 ) * Add cascadelake implementation, which use AVX512 Intrinsics to optimize performance(#1811) Co-authored-by: mellonyou <fangzheng.zhang@intel.com> Co-authored-by: wanweiqiangintel <weiqiang.wan@intel.com>	2022-05-25 11:14:02 -04:00
Daniel Lemire	645033a8c8	This runs the streaming amazon benchmarks in two modes: threaded and (#1828 ) unthreaded. In the large case, we find that the threaded scenario with ondemand has a 40% speed benefit over the unthreaded scenario.	2022-05-24 17:06:54 -04:00
Daniel Lemire	3b5ceeb80d	Making the python script more robust. (#1827 )	2022-05-20 13:32:15 -04:00
Dirk Stolle	82433a67f9	fix a few typos (#1829 )	2022-05-20 13:31:30 -04:00
Daniel Lemire	8c1bfe782b	Adds 'current_depth()'. (#1824 )	2022-05-17 18:06:42 -04:00
Daniel Lemire	730939f01c	Better documentation regarding the direct get_number_type() method. (#1821 )	2022-05-13 15:31:09 -04:00
Daniel Lemire	b169dc2ea7	Fixing get_number_type() (#1819 )	2022-05-12 12:15:38 -04:00
Andrea Pappacoda	1aa1d537fe	docs(basics): ondemand::element -> ::document (#1810 ) simdjson::ondemand::element doesn't exist	2022-05-05 14:55:22 -04:00
Richard Ebeling	c122462278	[skip ci] Fix accidental pastes in doc/basics.md (#1809 ) Co-authored-by: Richard Ebeling <He3lixxx@users.noreply.github.com>	2022-05-02 08:13:55 -04:00
Daniel Lemire	b6b338bea9	This simplifies the build somewhat by always including developer-options.cmake (#1806 )	2022-04-27 12:51:04 -04:00
Dirk Stolle	f72636b5b0	fix a typo in documentation (#1807 )	2022-04-26 18:01:12 -04:00
Daniel Lemire	f6a2bac11b	what happens if we remove this check for CI? (#1804 )	2022-04-23 14:09:22 -04:00
Daniel Lemire	e4ddc5446b	Fixing typo.	2022-04-10 08:16:46 -04:00
PavelP	e0e0aa9e7b	Update simdjson.h to include simdjson_version.h (#1794 ) After this change amalgamated simdjson.h has version info at the beginning of the file.	2022-03-19 08:00:24 -04:00
Daniel Lemire	9f0a2e0e86	Update to vs17 (required) (#1795 ) * Update to vs17 (required) * Moving to windows-latest. * Dropping old vs	2022-03-19 08:00:06 -04:00
Andrei Gritsiuk	203c03e90b	resolves #1784 - GCC 11.1.0 and CLang 12.0.0 complain on 'and' operator in padded_string-inl.h (#1785 ) Co-authored-by: Andrei <C:\Users\Andrei\AppData\Roaming\The Bat!>	2022-01-31 11:38:54 -05:00
Ivan Volnov	6698eb96b9	Fix C++20 build warnings (#1782 ) (#1787 ) * Fix C++20 build warnings (#1782) * Build fix for ppc64 (#1782)	2022-01-20 14:16:27 -05:00
pkubaj	30f7de387c	Fix build on FreeBSD/powerpc64* (#1786 ) FreeBSD uses sys/endian.h and bswap64().	2022-01-18 11:21:47 -05:00
Piotr Doan	e0788507fe	Missing value::get() template specialization for number (#1779 )	2022-01-11 12:07:20 -05:00
Daniel Lemire	e4740c87fb	Update README.md	2022-01-11 12:05:16 -05:00
Daniel Lemire	5beef701e7	Update CONTRIBUTORS	2022-01-03 15:55:47 -05:00
Daniel Lemire	c6f9c93c33	Use static variables to enforce initialization order. (#1773 ) (#1777 ) Fixes https://github.com/simdjson/simdjson/issues/1771 Co-authored-by: Hao Chen <chenhao.yalier@gmail.com>	2022-01-03 15:54:57 -05:00
Daniel Lemire	3a93e45dd1	Removing scoop support.	2021-12-30 12:10:11 -05:00
Daniel Lemire	6db8ceb46c	Verify and fix 1768. (#1769 ) * Verify and fix 1768. * Breaking down the namespaces for C++11 compilers.	2021-12-21 15:12:38 -05:00
Daniel Lemire	23651f0d41	Updating a macro.	2021-12-21 09:54:02 -05:00
N. Kolotov	7e1893db42	Added SIMDJSON_ prefix to STRINGIFY and to NO_SANITIZE_UNDEFINED macros. (#1766 )	2021-12-21 09:53:06 -05:00
Daniel Lemire	b4b1927b0f	Making the documentation more explicit. (#1765 )	2021-12-21 09:51:20 -05:00
Daniel Lemire	e275589832	Update implementation-selection.md	2021-12-07 13:15:05 -05:00
epoll-reactor	69ee84973a	Fix some typos in source files. (#1761 ) Co-authored-by: epoll-reactor <>	2021-12-06 16:56:15 -05:00
epoll-reactor	76bed68ec3	Fix broken link in basics documentation. (#1760 )	2021-12-04 12:21:08 -05:00
epoll-reactor	003d970cd2	Fix -Wredundant-decls warning in json_type.h. (#1759 ) Co-authored-by: threadpoolexecutor <davidkor77@gmail.com>	2021-12-02 13:49:48 -05:00
DavidKorczynski	4aaf3f030c	Add CIFuzz integration (#1757 ) Signed-off-by: David Korczynski <david@adalogics.com>	2021-11-30 10:14:26 -05:00
Daniel Lemire	2763f7e719	Fixing issue 1755 (#1756 )	2021-11-24 09:28:28 -05:00
strager	39035c39be	Fix typos in comments (#1754 )	2021-11-19 09:44:10 -05:00
strager	ac179ff40f	Fix broken links in documentation (#1753 )	2021-11-12 08:47:22 -05:00
Tyler Kennedy	b41bece32c	Fix a couple of broken links in the basics.md TOC (#1752 )	2021-11-07 19:58:32 -05:00
Daniel Lemire	9cb0c5f92d	Patching. (#1750 )	2021-11-05 19:46:57 -04:00
Daniel Lemire	1dec7b04fe	Remark.	2021-11-05 13:32:45 -04:00
strager	c6eb6f98b8	Fix typos in documentation (#1747 ) The variable is called LOG_ENABLED, not ENABLE_LOGGING. Fix the documentation in json_iterator.h.	2021-11-03 10:13:13 -04:00
Daniel Lemire	1b01969bda	Adding tests for issue 1745. (#1746 ) * Adding tests for issue 1745. * Tweaking the documentation so that it is clearer.	2021-11-03 10:12:18 -04:00
Daniel Lemire	17f3148ac7	Version 1.0.2.	2021-10-27 19:29:42 -04:00
Daniel Lemire	35b4a48e99	Fixing issue 1742 (#1743 ) * Fix for issue 1742. * Some additional tests.	2021-10-27 19:25:23 -04:00
mir4cle	c0d18452fc	Add an option to get current location from value (#1738 ) Co-authored-by: Igor Logvanev <igor.logvanev@aimtech.team>	2021-10-24 16:55:49 -04:00
Daniel Lemire	e5c9a310cf	Preparing release 1.0.1.	2021-10-20 12:18:04 -04:00
Daniel Lemire	6d308a08c5	Fixing issue 1736 (#1737 ) * Fixing issue 1736 * Updating google benchmark. * Minor trimming. * Using the variable (to silence a warning). * Adding assignment operator.	2021-10-20 12:15:35 -04:00
Daniel Lemire	9e477ddb00	Let us try to improve the documentation so that it is clearer. (#1733 ) * Let us try to improve the documentation so that it is clearer. * Minor tweaks.	2021-10-19 13:09:41 -04:00
Daniel Lemire	b7c4d1eeef	Adding test for issue 1729. (#1730 ) * Adding test for issue 1729. * Adding comment. * Trying to move to 11.7. * Tweaking. * More tweaking. * Adding additional test. * Missing "<<". * Minor update. * Removing legacy systems.	2021-10-13 09:30:37 -04:00
Daniel Lemire	4a2f10ebcf	Let us trim out these legacy systems from CI.	2021-10-12 18:24:03 -04:00
Daniel Lemire	41cb909604	Minor change to handle paranoid compilers. (#1732 )	2021-10-12 17:23:45 -04:00
Daniel Lemire	91908ade4d	Additional documentation following issue 1723 (#1724 ) * Some extra documentation regarding issue 1723. * Adding comments. * Minor fix. * [no ci] more documentation	2021-10-09 11:41:20 -04:00
Daniel Lemire	9a32c48098	Cleaning up the single-header demo. (#1731 ) * Cleaning up the single-header demo. * Updating xcode	2021-10-09 11:34:21 -04:00
Daniel Lemire	d996ffc494	Minor typo. (#1721 ) * Minor typo. * Minor fixes. * Patching...	2021-09-25 11:34:44 -04:00
Daniel Lemire	d56fdc3d04	[no ci] deleting an irrelevant comment.	2021-09-22 18:06:59 -04:00
Daniel Lemire	1dce4fed6e	[no ci] moving documentation bit to the right location. (#1719 )	2021-09-20 09:33:21 -04:00
Daniel Lemire	cae5e5342f	Additional ndjson tests. (#1717 ) * Additional ndjson tests. * Switching the data source. * Fixing.	2021-09-18 16:29:10 -04:00
Madhur Chauhan	4e609aa955	fix redundant `;` in document-inl.h (#1715 )	2021-09-17 14:02:03 -04:00
Paul Dreik	d28e5534d9	ignore unused variable (#1714 )	2021-09-12 17:37:58 -04:00
Daniel Lemire	3bd8b0b575	Refreshing the single-header files.	2021-09-07 14:36:17 -04:00
Daniel Lemire	af4ff7cc33	Adding fast "get_number_type()" function, bypassing "get_number()" (#1713 ) * Adding fast "get_number_type" function, bypassing "get_number" * Minor tweak. * Adding missing get_number_type().	2021-09-07 14:34:40 -04:00
Nicolas Boyer	c9179ad81d	Add count_fields method for objects (#1712 ) * Implement count_elements for object * Add count_elements() for simdjson_result * Add count_elements for documents(arrays,objects). * Add tests for objects. * Add tests for documents array. Typos. * Renaming to count_fields() for objects. * Update doc. * Apply patch	2021-09-02 16:18:48 -04:00
Daniel Lemire	d6b5124c88	Pushing the release 1.0.0 candidate. (#1709 )	2021-09-01 15:25:45 -04:00
Dougall Johnson	64b62fd3b3	simd8x64::compress optimisation for Apple M1 (#1708 ) * Optimized the arm64 implementation of simd8x64::compress This is ~35% faster on the fast_minify benchmarks on Apple M1 * Return byte-count from simd8x64::compress This avoids a redundant popcount on ARM, for ~3% faster minify on Apple M1	2021-09-01 15:25:11 -04:00
Daniel Lemire	cebe3fb299	Tweaking current_location(). (#1707 ) * Tweaking current_location(). * Well.	2021-08-28 20:19:30 -04:00
Nicolas Boyer	ed7343f7f2	Provide current location in JSON input (#1695 ) * Setup. * Add current_location(). * Make return simdjson_result and fix cast issues. * Whitespace. * Add broken JSON tests. Add null parser check. * Remove unused variables. * Alive fix. * Fix merge issues. * Simplification for out of bounds. * More tests. * Move pointer back for unrecoverable errors. * Add new error OUT_OF_BOUNDS * Remove unnecessary include and fix OUT_OF_BOUNDS. * Add more tests. Fix unrecoverable errors. * Fix tests. * Modify one test. * Update doc. * Typos. * Add read_me tests. * Update doc. * Add current_location for simdjson_result and document_reference * Typos. Co-authored-by: Daniel Lemire <lemire@gmail.com>	2021-08-27 13:41:59 -04:00
Daniel Lemire	35158257c6	Implementing get_number for the document instances. (#1706 )	2021-08-27 10:26:01 -04:00
Daniel Lemire	b935ce2e06	Allowing casts instead of get_double, get_uint64 and get_int64 (#1705 )	2021-08-27 10:25:17 -04:00
Daniel Lemire	4afe7565b4	ondemand dynamically-typed numbers (#1704 ) * Building up a number type. * Implemented is_integer and is_negative. * Implemented get_number in value_iterator. * Final prototype. * [no ci] typo	2021-08-26 12:16:44 -04:00
Daniel Lemire	6bed34ad61	This exposes 'reset' for object and array instances. (#1696 ) * This exposes 'rewind' for object and array instances. * Putting really_inline back to count_elements() * Update array.h * Adding empty array rewind. * Adds "is_empty" method to arrays. * More fragmentation. * Tweaking implementation. * Fixing issue with get_value() on document instances. * Changing the name of the new rewind functions to reset.	2021-08-21 10:23:59 -04:00
Daniel Lemire	0ad52a7e22	Renaming scalar to is_scalar. (#1698 )	2021-08-21 10:23:22 -04:00
Daniel Lemire	aa52cf6868	Alive fix. (#1700 )	2021-08-21 10:22:59 -04:00
Daniel Lemire	cd11838e5f	Update parse_many.md	2021-08-20 14:52:43 -04:00
Daniel Lemire	c31157bafe	Update iterate_many.md	2021-08-20 14:15:38 -04:00
Daniel Lemire	419b7b2ce8	Update parse_many.md	2021-08-20 14:09:54 -04:00
Daniel Lemire	ca3f3cc49d	Update iterate_many.md	2021-08-20 14:09:30 -04:00
Paul Dreik	d3f0e2afb3	[no ci] remove references to bintray (#1702 ) * download fuzz corpus from www.pauldreik.se * remove reference to bintray	2021-08-19 08:39:07 -04:00
Daniel Lemire	eac3832ec0	[no ci] removing space	2021-08-17 08:35:21 -04:00
Daniel Lemire	db19c7675f	[no ci] tweaking documentation	2021-08-15 10:32:11 -04:00
strager	d036fdf919	Reduce #include bloat (<iostream>) (#1697 ) Including <iostream> has two problems: * Compile times are worse because of over-inclusion * Binary sizes are worse when statically linking libstdc++ because iostreams cannot be dead-code-stripped simdjson only needs std::ostream. Include the header declaring only what we need (<ostream>), omitting stuff we don't need (std::cout and its initialization, for example). This commit should not change behavior, but it might break users who assume that including <simdjson/simdjson.h> will make std::cout available (such as many of simdjson's own files).	2021-08-13 11:24:36 -04:00
Daniel Lemire	fc0934755a	[no ci] Adding new "include <iostream>" lines in the documentation following the recent removal of iostream from our headers.	2021-08-13 11:23:16 -04:00
Daniel Lemire	de4deb8c4e	Makes it possible to cast a document to a value. (#1690 ) * Makes it possible to cast a document to a value.	2021-08-11 20:02:30 -04:00
Daniel Lemire	ba46616cbc	Small test for document_reference usage. (#1694 )	2021-08-10 21:08:59 -04:00
Daniel Lemire	a552638373	removing trailing spaces	2021-08-10 15:12:05 -04:00
Daniel Lemire	e30123d58f	[no ci]	2021-08-10 15:02:51 -04:00
Daniel Lemire	b7dee3e9c8	[no ci] remark	2021-08-09 13:04:20 -04:00
Daniel Lemire	717d0c24a6	[no ci] tuning documentation	2021-08-09 12:09:40 -04:00
Daniel Lemire	40813752f4	This will update the amalgamate_demo.cpp file to use On Demand. (#1689 ) * This will update the amalgamate_demo.cpp file to use On Demand. * Making the demo exceptionless.	2021-08-07 12:43:40 -04:00
Daniel Lemire	19902abaf8	Guarding first/second access. (#1688 ) * Guarding first/second access. * Correcting our own usage. * Adding more documentation.	2021-08-06 20:25:05 -04:00
Daniel Lemire	06643fc9f5	Additional tests and document tuning (#1684 ) * Additional example. * Adds more tests. * Actually using the variable.	2021-08-02 16:35:02 -04:00
Daniel Lemire	0fa68d8930	Fixing noexcept on operator << with simdjson_result. (#1678 ) * Additional tests. * Finishing touch. * Extending to IO.	2021-07-31 17:54:27 -04:00
Daniel Lemire	cc98358453	Adding error handing examples to the documentation (#1679 ) * Adding error handing examples. * Guarding the exception-throwing test.	2021-07-31 14:31:48 -04:00
Dirk Stolle	5f0b35b2c5	update string_view lite to version 1.6.0 (#1677 ) This is the header as seen in the current master branch, commit d27d7b5081406a35b41cb16b321be8833b4cd811, on <https://github.com/martinmoene/string-view-lite>.	2021-07-31 11:19:51 -04:00
Daniel Lemire	bd0f5e9322	[no ci] details	2021-07-30 18:20:37 -04:00
Daniel Lemire	cb0e4b23c7	[no ci] clearing headings	2021-07-30 18:12:06 -04:00
Daniel Lemire	d83e69d977	Fix an issue with truncated-byte function. (#1674 )	2021-07-30 13:12:42 -04:00
Daniel Lemire	f657516a7e	Pruning some white spaces.	2021-07-27 13:16:18 -04:00
Daniel Lemire	8d29c5f931	[no ci] README update	2021-07-27 11:10:56 -04:00
Daniel Lemire	eeac91579c	[no ci] additional examples	2021-07-27 11:08:24 -04:00
Daniel Lemire	e5a4b8b81b	[no ci] minor indentation issue	2021-07-27 11:05:15 -04:00
Daniel Lemire	7b8f775893	Update basics.md	2021-07-27 11:04:01 -04:00
Daniel Lemire	c6ef2105ab	Minor tweak.	2021-07-27 10:56:05 -04:00
Daniel Lemire	e681234e45	[no ci] update to power usage section	2021-07-27 10:30:19 -04:00
Daniel Lemire	eb93b98d6a	verify and fix issue 1668 (#1673 ) * Adding test. * Verifies and fix issue 1668. This commit updates the previous behavior of the On Demand stream support by return a value type (document_reference) instead of a reference to a document. This allows us to bridge with the usually simdjson error system, with its simdjson_result types. * Minor reformat. * Adds a test with initial tests passing. * Adding an example.	2021-07-27 08:51:07 -04:00
Nicolas Boyer	7d887fdc1e	Parse numbers inside strings (#1667 ) * Update basic.md to document JSON pointer for On Demand. * Add automatic rewind for at_pointer * Remove DOM examples in basics.md and update documentation reflecting addition of at_pointer automatic rewinding. * Review * Add test * Naive implementation for doubles in string. * Add double from string in atom doc. * Simplification (removed all _from_string()) Add int and uint parsing in string. * Make duplicates instead. * Make tests exceptionless. * Add missing declarations. * Add more tests (errors, JSON pointer). * Add crypto json tests. * Update doc. * Update doc after review. Co-authored-by: Daniel Lemire <lemire@gmail.com>	2021-07-27 08:50:44 -04:00
Daniel Lemire	9d405a5df4	[skip ci] made requirements more precise	2021-07-26 08:47:21 -04:00
Daniel Lemire	18c003e8bf	Adding CI for old LLVM in GitHub Actions (#1672 ) * Adding CI for old LLVM * Simplifying.	2021-07-26 08:37:29 -04:00
Daniel Lemire	ec4316aa84	Adding macos testing. (#1670 )	2021-07-25 12:25:31 -04:00
Daniel Lemire	b79261eebc	This cleans a bit the current code, especially with respect to EOF guards. (#1669 ) * Upgrading the GitHub Actions. * Upgrading appveyor * Upgrading circle ci. * Cleaning.	2021-07-25 10:36:22 -04:00