Optimize reflection-based deserialization with hybrid algorithm

- Add threshold-based algorithm selection (N<=8: per-field, N>=9: single-pass)
- Per-field lookup leverages simdjson's SIMD-optimized find_field_unordered
- Single-pass uses bitmask tracking, first-char filter, and early termination
- Add fields_in_order<T> trait for user-defined ordered field optimization

Performance improvement on benchmarks:
- Twitter: +5.3% (4167 -> 4389 MB/s)
- CITM: +14.6% (2600 -> 2994 MB/s)

Threshold=8 is based on crossover analysis: at N=9 fields, per-field lookup
causes ~35% regression due to quadratic scan cost vs single-pass linear cost.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -29,9 +29,6 @@ We accept the identification of an issue by a sanitizer or some checker tool (e.
 
 We recommend that you run your tests using different optimization levels. In particular, we recommend your run tests with the simdjson library and you code compiled in debug mode. The simdjson then sets the SIMDJSON_DEVELOPMENT_CHECKS macro to 1, and this triggers additional checks on your code and on the internals of the library. If possible, we recommend that you run tests with sanitizers (e.g., see [No more leaks with sanitize flags in gcc and clang](https://lemire.me/blog/2016/04/20/no-more-leaks-with-sanitize-flags-in-gcc-and-clang/)).  You can compile the library with sanitizers for debugging purposes (e.g., set SIMDJSON_SANITIZE to ON using CMake), but you should also turn on sanitizers on your own code. You may also use tools like valgrind or the commercial equivalent.
 
-Mixing debug and release simdjson code is unsafe: you either build all your code using simdjson in
-release mode or all of it in debug mode.
-
 Before reporting a bug, please ensure that you have read our documentation.
 
 **To Reproduce**
@@ -58,7 +55,6 @@ We support up-to-date 64-bit ARM and x64 FreeBSD, macOS, Windows and Linux syste
 * We do not support unreleased or experimental compilers. If you encounter an issue with a
 pre-release version of a compiler, do not report it as a bug to simdjson. However, we always
 invite contributions either in the form an analysis or of a code contribution.
-* Vendors (e.g., Apple and Microsoft) stop supporting old systems. Once a compiler system is no longer supported by its vendor, we no longer support it. We will gladly accept code contributions, but we do not consider it a *bug* if you have issues with an obsolete compiler systems. This policy extends to obsolete standard libraries, linkers and other build tools. Please do not report it as an issue. If you cannot resolve the issue yourself, we encourage you to reach out to the vendor for legacy support. As of 2026, Windows 10 is no longer supported.
 
 Under Windows, we support Visual Studio (both with LLVM and without). We do not support MinGW and other alternate compiler systems. Windows users should be aware that there [is a long-running bug with GCC under Windows](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412).
 

.github/pull_request_template.md

@@ -20,7 +20,7 @@ How to verify / test
 Please read before contributing:
 - CONTRIBUTING: https://github.com/simdjson/simdjson/blob/master/CONTRIBUTING.md
 - HACKING: https://github.com/simdjson/simdjson/blob/master/HACKING.md
-- AI Usage Policy: https://github.com/simdjson/simdjson/blob/master/AI_USAGE_POLICY.md
+
 
 
 If you can, we recommend running our tests with the sanitizers turned on.

.github/workflows/aarch64.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/alpine.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/debian.yaml

@@ -16,7 +16,7 @@ jobs:
       image: debian:testing
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
 
     - name: Install dependencies
       run: |

.github/workflows/documentation.yml

@@ -24,7 +24,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - name: Install Doxygen
         run: sudo apt-get install doxygen graphviz -y
       - run: mkdir docs

.github/workflows/emscripten.yml

@@ -4,13 +4,13 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
       - uses: mymindstorm/setup-emsdk@6ab9eb1bda2574c4ddb79809fc9247783eaf9021 # v14
       - name: Verify
         run: emcc -v
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v3.6.0
       - name: Configure
         run: emcmake cmake -B build
       - name: Build # We build but do not test

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

@@ -6,7 +6,7 @@ jobs:
   whitespace:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - name: Remove whitespace and check the diff
         run: |
           set -eu

.github/workflows/fuzzers.yml

@@ -38,14 +38,14 @@ jobs:
         chmod +x llvm.sh
         sudo ./llvm.sh $CLANGVERSION
 
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
 
-    - uses: actions/cache@v5
+    - uses: actions/cache@v4
       with:
         path: dependencies/.cache
         key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
 
-    - uses: actions/cache@v5
+    - uses: actions/cache@v4
       id: cache-corpus
       with:
         path: out/

.github/workflows/gcc16.yml

@@ -1,26 +0,0 @@
-name: gcc 16
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-    branches:
-      - master
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    container:
-      image: 'gcc:16'
-    steps:
-      - uses: actions/checkout@v6
-      - name: Install dependencies
-        run: |
-          apt -y update
-          apt -y --no-install-recommends install cmake ninja-build
-      - name: Build and test
-        run: |
-          cmake -B build -D SIMDJSON_STATIC_REFLECTION=ON -DSIMDJSON_DEVELOPER_MODE=ON -GNinja
-          cmake --build build
-          ctest --test-dir build --parallel $(nproc)

.github/workflows/loongarch64.yml

@@ -11,13 +11,13 @@ jobs:
         platform:
           - { toolchain-version: 2023.08.08 }
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - name: Install build requirements
         run: |
           sudo apt-get update -y
           sudo apt-get install -y --no-install-recommends cmake
 
-      - uses: actions/cache/restore@v5
+      - uses: actions/cache/restore@v4
         id: restore-cache
         with:
           path: /opt/cross-tools
@@ -33,7 +33,7 @@ jobs:
           mkdir -p /opt
           tar -C /opt -x -f /tmp/toolchain.tar.xz
 
-      - uses: actions/cache/save@v5
+      - uses: actions/cache/save@v3
         if: ${{ !steps.restore-cache.outputs.cache-hit }}
         with:
           path: /opt/cross-tools

.github/workflows/macos.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -42,14 +42,3 @@ jobs:
           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 buildshared && cd buildshared && cmake -DCMAKE_INSTALL_PREFIX:PATH=../../../buildshared/destination .. &&  cmake --build .
-      - name: Use cmake (parsing for NaN/Infinity enabled)
-        run: |
-          mkdir build_nan_inf &&
-          cd build_nan_inf &&
-          cmake  -DSIMDJSON_ENABLE_NAN_INF=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
-          cmake --build .   &&
-          ctest --output-on-failure -LE explicitonly -j   &&
-          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_nan_inf && cd build_nan_inf && cmake -DCMAKE_INSTALL_PREFIX:PATH=../../../build_nan_inf/destination .. &&  cmake --build .

.github/workflows/msys2-clang.yml

@@ -27,8 +27,8 @@ jobs:
       CMAKE_GENERATOR: Ninja
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/msys2.yml

@@ -29,8 +29,8 @@ jobs:
       CMAKE_GENERATOR: Ninja
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ppc64.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/riscv64.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd
@@ -26,4 +26,4 @@ jobs:
           run: |
             cmake -DCMAKE_BUILD_TYPE=Release -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF  -B build
             cmake --build build -j=2
-            ctest --output-on-failure --test-dir build -E ondemand_cacheline
+            ctest --output-on-failure --test-dir build

.github/workflows/rvv-1024-clang-18.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-128-clang-17.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-128-clang-20.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-256-gcc-14.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-512-clang-19.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/s390x.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/ubuntu22-clang13.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-clang14.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-cxx20.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-gcc12.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-glibcxxassertions.yml

@@ -8,8 +8,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-threadsani.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-checkperf.yml

@@ -1,4 +1,4 @@
-name: Performance check on Ubuntu 24.04 CI (GCC 13)
+name: Performance check on Ubuntu 20.04 CI (GCC 9)
 
 on:
   push:
@@ -15,8 +15,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-clang20.yml

@@ -1,27 +0,0 @@
-name: Ubuntu 24.04 CI (CLANG 20)
-
-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-24.04
-    steps:
-      - uses: actions/checkout@v6
-      - uses: actions/cache@v5
-        with:
-          path: dependencies/.cache
-          key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
-      - name: Install clang-20
-        run: |
-          sudo apt-get update -q -y
-          sudo apt-get install -y clang-20
-      - name: Use cmake
-        run: |
-          mkdir build &&
-          cd build &&
-          CXX=clang++-20 cmake -DSIMDJSON_DEVELOPER_MODE=ON ..  &&
-          cmake --build .   &&
-          ctest --output-on-failure -LE explicitonly -j

.github/workflows/ubuntu24-cxx20-noexcept.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         cxx: [g++-13, clang++-16]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
       - name: Prepare
         run: cmake -DSIMDJSON_CXX_STANDARD=20 -DSIMDJSON_EXCEPTIONS=OFF -DSIMDJSON_DEVELOPER_MODE=ON  -B build
         env:

.github/workflows/ubuntu24-cxx20.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         cxx: [g++-13, clang++-16]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
       - name: Prepare
         run: cmake -DSIMDJSON_CXX_STANDARD=20 -DSIMDJSON_DEVELOPER_MODE=ON  -B build
         env:

.github/workflows/ubuntu24-noexcept.yml

@@ -1,4 +1,4 @@
-name: Ubuntu 24.04 CI (GCC 13) without exceptions
+name: Ubuntu 20.04 CI (GCC 9) without exceptions
 
 on: [push, pull_request]
 
@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -24,7 +24,7 @@ jobs:
           cd .. &&
           mkdir build &&
           cd build &&
-          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_EXCEPTIONS=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
+          cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_GOOGLE_BENCHMARKS=ON -DSIMDJSON_EXCEPTIONS=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=destination ..  &&
           cmake --build .   &&
           ctest --output-on-failure -LE explicitonly -j   &&
           make install  &&

.github/workflows/ubuntu24-nothread.yml

@@ -1,4 +1,4 @@
-name: Ubuntu 24.04 CI (GCC 13) Without Threads
+name: Ubuntu 20.04 CI (GCC 9) Without Threads
 
 on: [push, pull_request]
 
@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-sani.yml

@@ -1,16 +1,16 @@
-name: Ubuntu 24.04 CI (GCC 13) With Memory Sanitizer
+name: Ubuntu 20.04 CI (GCC 9) With Memory Sanitizer
 
 on: [push, pull_request]
 
 jobs:
-  ubuntu-build-address-sanitizer:
+  ubuntu-build-address-sanitizier:
     if: >-
       ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -21,21 +21,14 @@ jobs:
           cmake -DSIMDJSON_SANITIZE=ON -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
           cmake --build .   &&
           ctest --output-on-failure -LE explicitonly -j
-      - name: Use cmake with address sanitizer (Parsing of NaN/Infinity enabled)
-        run: |
-          mkdir builddebug_nan_inf &&
-          cd builddebug_nan_inf &&
-          cmake -DSIMDJSON_SANITIZE=ON -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_ENABLE_NAN_INF=ON ..  &&
-          cmake --build .   &&
-          ctest --output-on-failure -LE explicitonly -j
   ubuntu-build-undefined-sanitizer:
     if: >-
       ! contains(toJSON(github.event.commits.*.message), '[skip ci]') &&
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -46,10 +39,3 @@ jobs:
           cmake -DSIMDJSON_SANITIZE_UNDEFINED=ON -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF ..  &&
           cmake --build .   &&
           ctest --output-on-failure -LE explicitonly -j
-      - name: Use cmake with undefined sanitizer (Parsing of NaN/Infinity enabled)
-        run: |
-          mkdir builddebugundefsani_nan_inf &&
-          cd builddebugundefsani_nan_inf &&
-          cmake -DSIMDJSON_SANITIZE_UNDEFINED=ON -DCMAKE_BUILD_TYPE=Debug -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON -DBUILD_SHARED_LIBS=OFF -DSIMDJSON_ENABLE_NAN_INF=ON ..  &&
-          cmake --build .   &&
-          ctest --output-on-failure -LE explicitonly -j

.github/workflows/ubuntu24.yml

@@ -12,12 +12,11 @@ jobs:
         shared: [ON, OFF]
         cxx: [g++-13, clang++-16]
         sanitizer: [ON, OFF]
-        nan_inf: [ON, OFF]
         build_type: [RelWithDebInfo, Debug, Release]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
       - name: Prepare
-        run: cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_SANITIZE=${{matrix.sanitizer}} -DBUILD_SHARED_LIBS=${{matrix.shared}} -DSIMDJSON_ENABLE_NAN_INF=${{matrix.nan_inf}} -B build
+        run: cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_SANITIZE=${{matrix.sanitizer}} -DBUILD_SHARED_LIBS=${{matrix.shared}}  -B build
         env:
           CXX: ${{matrix.cxx}}
       - name: Build

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

@@ -14,7 +14,7 @@ jobs:
            - {arch: ARM64EC}
      steps:
        - name: checkout
-         uses: actions/checkout@v6
+         uses: actions/checkout@v4
        - name: Use cmake
          run: |
            cmake -A ${{ matrix.arch }} -DCMAKE_SYSTEM_VERSION="10.0.22621.0" -DCMAKE_CROSSCOMPILING=1 -DSIMDJSON_DEVELOPER_MODE=ON -D SIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_EXCEPTIONS=OFF -B build  &&

.github/workflows/vs17-ci-cxx20.yml

@@ -19,7 +19,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, shared: OFF}
     steps:
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v4
     - name: Configure
       run: |
         cmake -DSIMDJSON_CXX_STANDARD=20 -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -B build

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

@@ -18,7 +18,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: RelWithDebInfo}
     steps:
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v4
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSANITIZE=ON -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -B build

.github/workflows/vs17-ci.yml

@@ -13,20 +13,18 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - {gen: Visual Studio 17 2022, arch: Win32, shared: ON, build_type: Release, memory_map: OFF, nan_inf: OFF}
+          - {gen: Visual Studio 17 2022, arch: Win32, shared: ON, build_type: Release}
-          - {gen: Visual Studio 17 2022, arch: Win32, shared: OFF, build_type: Release, memory_map: OFF, nan_inf: OFF}
+          - {gen: Visual Studio 17 2022, arch: Win32, shared: OFF, build_type: Release}
-          - {gen: Visual Studio 17 2022, arch: x64, shared: ON, build_type: Release, memory_map: ON, nan_inf: OFF}
+          - {gen: Visual Studio 17 2022, arch: x64, shared: ON, build_type: Release}
-          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Debug, memory_map: ON, nan_inf: OFF}
+          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Debug}
-          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Release, memory_map: ON, nan_inf: OFF}
+          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Release}
-          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: RelWithDebInfo, memory_map: ON, nan_inf: OFF}
+          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: RelWithDebInfo}
-          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Debug, memory_map: ON, nan_inf: ON}
-          - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Release, memory_map: ON, nan_inf: ON}
     steps:
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v4
     - name: Configure
       run: |
-        cmake -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=${{matrix.memory_map}} -DSIMDJSON_ENABLE_NAN_INF=${{matrix.nan_inf}} -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 ${{matrix.build_type}} --verbose
     - name: Run tests

.github/workflows/vs17-clang-ci-cxx20.yml

@@ -18,7 +18,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, build_type: RelWithDebInfo}
     steps:
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v4
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -T ClangCL -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -B build

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

@@ -18,7 +18,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, build_type: RelWithDebInfo}
     steps:
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v4
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -T ClangCL -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -B build

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

@@ -7,8 +7,8 @@ jobs:
     name: windows-vs17
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v4
-    - uses: actions/cache@v5
+    - uses: actions/cache@v4
       with:
         path: dependencies/.cache
         key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

AI_USAGE_POLICY.md

@@ -1,56 +0,0 @@
-# AI Usage Policy
-
-Contributors can use whatever tools they would like to
-craft their contributions, but there must be a **human in the loop**.
-**Contributors must read and review all LLM-generated code or text before they
-ask other project members to review it.** The contributor is always the author
-and is fully accountable for their contributions. Contributors should be
-sufficiently confident that the contribution is high enough quality that asking
-for a review is a good use of scarce maintainer time, and they should be **able
-to answer questions about their work** during review.
-
-We expect that new contributors will be less confident in their contributions,
-and our guidance to them is to **start with small contributions** that they can
-fully understand to build confidence. We aspire to be a welcoming community
-that helps new contributors grow their expertise, but learning involves taking
-small steps, getting feedback, and iterating. Passing maintainer feedback to an
-LLM doesn't help anyone grow, and does not sustain our community.
-
-This policy includes, but is not limited to, the following kinds of
-contributions:
-
-- Code, usually in the form of a pull request
-- Issues or security vulnerabilities
-- Comments and feedback on pull requests
-
-## Extractive Contributions
-
-The reason for our "human-in-the-loop" contribution policy is that processing
-patches, PRs, RFCs, and comments is not free -- it takes a lot of
-maintainer time and energy to review those contributions! Sending the
-unreviewed output of an LLM to open source project maintainers *extracts* work
-from them in the form of design and code review, so we call this kind of
-contribution an "extractive contribution".
-
-## Transparency
-
-For contributions involving significant AI assistance, we encourage you to disclose
-its use and explain your process. If a submission appears to rely heavily on AI
-without disclosure, we may doubt that the **human-in-the-loop** requirement has
-been met. Please show awareness of your use of AI.
-
-## Copyright
-
-Artificial intelligence systems raise many questions around copyright that have
-yet to be answered. Our policy on AI tools is similar to our copyright policy:
-Contributors are responsible for ensuring that they have the right to
-contribute code under the terms of our license, typically meaning that either
-they, their employer, or their collaborators hold the copyright. Using AI tools
-to regenerate copyrighted material does not remove the copyright, and
-contributors are responsible for ensuring that such material does not appear in
-their contributions. Contributions found to violate this policy will be removed
-just like any other offending contribution.
-
-## Reference
-
-- [LLVM AI Tool Use Policy](https://discourse.llvm.org/t/rfc-llvm-ai-tool-policy-human-in-the-loop/89159)

CMakeLists.txt

@@ -12,7 +12,7 @@ endif()
 project(
     simdjson
     # The version number is modified by tools/release.py
-    VERSION 4.6.1
+    VERSION 4.2.4
     DESCRIPTION "Parsing gigabytes of JSON per second"
     HOMEPAGE_URL "https://simdjson.org/"
     LANGUAGES CXX C
@@ -29,8 +29,8 @@ string(
 # ---- Options, variables ----
 
 # These version numbers are modified by tools/release.py
-set(SIMDJSON_LIB_VERSION "33.0.0" CACHE STRING "simdjson library version")
+set(SIMDJSON_LIB_VERSION "29.0.0" CACHE STRING "simdjson library version")
-set(SIMDJSON_LIB_SOVERSION "33" CACHE STRING "simdjson library soversion")
+set(SIMDJSON_LIB_SOVERSION "29" CACHE STRING "simdjson library soversion")
 
 option(SIMDJSON_BUILD_STATIC_LIB "Build simdjson_static library along with simdjson (only makes sense if BUILD_SHARED_LIBS=ON)" OFF)
 if(SIMDJSON_BUILD_STATIC_LIB AND NOT BUILD_SHARED_LIBS)
@@ -75,48 +75,10 @@ if(SIMDJSON_DEVELOPMENT_CHECKS)
   )
 endif()
 
-# padded_memory_map is always available on POSIX. On Windows it is disabled
-# by default because it depends on the `CreateFileMapping2` / `MapViewOfFile3`
-# APIs, which require Windows 10 version 1803 or later and are exported via
-# onecore.lib rather than the default kernel32.lib. Turn this option ON to
-# opt into the feature on Windows; simdjson will then set the appropriate
-# Windows version macros and link onecore, so everything that links
-# simdjson picks up both the compile-time declarations and the import
-# library automatically. The option is a no-op on POSIX (where the feature
-# is unconditionally enabled).
-option(SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS
-  "Enable simdjson::padded_memory_map on Windows (requires Windows 10 \
-version 1803 or later). Always enabled on POSIX." OFF)
-if(SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS)
-  simdjson_add_props(
-      target_compile_definitions PUBLIC
-      SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=1
-  )
-  if(WIN32)
-    # Raise the Windows version floor so that <windows.h> declares the
-    # modern memory-mapping APIs, and link the import library that
-    # actually exports them. _WIN32_WINNT / WINVER / NTDDI_VERSION together
-    # tell <sdkddkver.h> which APIs to light up.
-    simdjson_add_props(
-        target_compile_definitions PUBLIC
-        _WIN32_WINNT=0x0A00
-        WINVER=0x0A00
-        NTDDI_VERSION=0x0A000006 # NTDDI_WIN10_RS5, Windows 10 version 1809
-    )
-    simdjson_add_props(
-        target_link_libraries PUBLIC
-        onecore
-    )
-  endif()
-endif()
-
 if(is_top_project)
-  option(SIMDJSON_INSTALL "Enable target install" ON)
   option(SIMDJSON_DEVELOPER_MODE "Enable targets for developing simdjson" OFF)
   option(BUILD_SHARED_LIBS "Build simdjson as a shared library" OFF)
   option(SIMDJSON_SINGLEHEADER "Disable singleheader generation" ON)
-else()
-  option(SIMDJSON_INSTALL "Enable target install" ${BUILD_SHARED_LIBS})
 endif()
 
 include(cmake/handle-deprecations.cmake)
@@ -130,16 +92,13 @@ add_library(simdjson ${SIMDJSON_SOURCES})
 add_library(simdjson::simdjson ALIAS simdjson)
 set(SIMDJSON_LIBRARIES simdjson)
 
-# Check for <bit> header compatibility
-include(CheckIncludeFileCXX)
-check_include_file_cxx(bit SIMDJSON_HAS_BIT_HEADER)
-
 # Enable precompiled headers for faster builds
 if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.16")
-  set(SIMDJSON_PRECOMPILE_HEADERS
+  target_precompile_headers(simdjson PRIVATE
     <algorithm>
     <array>
     <atomic>
+    <bit>
     <cassert>
     <cctype>
     <cerrno>
@@ -152,12 +111,6 @@ if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.16")
     <utility>
     <vector>
   )
-
-  if(SIMDJSON_HAS_BIT_HEADER)
-    list(APPEND SIMDJSON_PRECOMPILE_HEADERS <bit>)
-  endif()
-
-  target_precompile_headers(simdjson PRIVATE ${SIMDJSON_PRECOMPILE_HEADERS})
 endif()
 
 if(SIMDJSON_BUILD_STATIC_LIB)
@@ -202,37 +155,13 @@ if(MSVC)
   endif()
 endif()
 
-
-
 if(SIMDJSON_STATIC_REFLECTION)
-
-
-  if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND CMAKE_CXX_COMPILER_VERSION MATCHES "^21")
-    execute_process(
-        COMMAND ${CMAKE_CXX_COMPILER} --version
-        OUTPUT_VARIABLE CLANG_VERSION_OUTPUT
-        ERROR_VARIABLE CLANG_VERSION_ERROR
-        RESULT_VARIABLE CLANG_VERSION_RESULT
-    )
-    if(CLANG_VERSION_RESULT EQUAL 0 AND CLANG_VERSION_OUTPUT MATCHES "https://github.com/bloomberg/clang-p2996.git")
-        set(IS_BLOOMBERG_P2996_CLANG ON)
-        message(STATUS "Using Bloomberg P2996 Clang fork")
-    endif()
-  endif()
-
   # We would like to require C++26, but no compiler supports that!
   # This is a hack:
-  if(IS_BLOOMBERG_P2996_CLANG)
   simdjson_add_props(
       target_compile_options PUBLIC
       -freflection -fexpansion-statements -stdlib=libc++ -std=c++26
   )
-  else()
-  simdjson_add_props(
-      target_compile_options PUBLIC
-      -freflection -std=c++26
-  )
-  endif()
 else()
   simdjson_add_props(target_compile_features PUBLIC cxx_std_11)
 endif()
@@ -254,12 +183,6 @@ if(SIMDJSON_MINUS_ZERO_AS_FLOAT)
   simdjson_add_props(target_compile_definitions PRIVATE SIMDJSON_MINUS_ZERO_AS_FLOAT=1)
 endif(SIMDJSON_MINUS_ZERO_AS_FLOAT)
 
-option(SIMDJSON_ENABLE_NAN_INF "Allow parsing of NaN and Infinity JSON values" OFF)
-if(SIMDJSON_ENABLE_NAN_INF)
-  message(STATUS "simdjson NaN and Infinity parsing is enabled.")
-  simdjson_add_props(target_compile_definitions PUBLIC SIMDJSON_ENABLE_NAN_INF=1)
-endif()
-
 # GCC and Clang have horrendous Debug builds when using SIMD.
 # A common fix is to use '-Og' instead.
 # bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412
@@ -293,89 +216,87 @@ endif()
 
 # ---- Install rules ----
 
-if(SIMDJSON_INSTALL)
+include(CMakePackageConfigHelpers)
-    include(CMakePackageConfigHelpers)
+include(GNUInstallDirs)
-    include(GNUInstallDirs)
 
-    if(SIMDJSON_SINGLEHEADER)
+if(SIMDJSON_SINGLEHEADER)
-      install(
+  install(
-          FILES singleheader/simdjson.h
+      FILES singleheader/simdjson.h
-          DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+      DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-          COMPONENT simdjson_Development
+      COMPONENT simdjson_Development
-      )
+  )
-    endif()
-
-    install(
-        TARGETS simdjson
-        EXPORT simdjsonTargets
-        RUNTIME COMPONENT simdjson_Runtime
-        LIBRARY COMPONENT simdjson_Runtime
-        NAMELINK_COMPONENT simdjson_Development
-        ARCHIVE COMPONENT simdjson_Development
-        INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-    )
-    configure_file(cmake/simdjson-config.cmake.in simdjson-config.cmake @ONLY)
-
-    write_basic_package_version_file(
-        simdjson-config-version.cmake
-        COMPATIBILITY SameMinorVersion
-    )
-
-    set(
-        SIMDJSON_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/simdjson"
-        CACHE STRING "CMake package config location relative to the install prefix"
-    )
-    mark_as_advanced(SIMDJSON_INSTALL_CMAKEDIR)
-
-    install(
-        FILES
-        "${PROJECT_BINARY_DIR}/simdjson-config.cmake"
-        "${PROJECT_BINARY_DIR}/simdjson-config-version.cmake"
-        DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
-        COMPONENT simdjson_Development
-    )
-
-    install(
-        EXPORT simdjsonTargets
-        NAMESPACE simdjson::
-        DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
-        COMPONENT simdjson_Development
-    )
-
-    if(SIMDJSON_BUILD_STATIC_LIB)
-      install(
-          TARGETS simdjson_static
-          EXPORT simdjson_staticTargets
-          ARCHIVE COMPONENT simdjson_Development
-          INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-      )
-      install(
-          EXPORT simdjson_staticTargets
-          NAMESPACE simdjson::
-          DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
-          COMPONENT simdjson_Development
-      )
-    endif()
-
-    # pkg-config
-    include(cmake/JoinPaths.cmake)
-    join_paths(PKGCONFIG_INCLUDEDIR "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
-    join_paths(PKGCONFIG_LIBDIR "\${prefix}" "${CMAKE_INSTALL_LIBDIR}")
-
-    if(SIMDJSON_ENABLE_THREADS)
-      set(PKGCONFIG_CFLAGS "-DSIMDJSON_THREADS_ENABLED=1")
-      if(CMAKE_THREAD_LIBS_INIT)
-        set(PKGCONFIG_LIBS_PRIVATE "Libs.private: ${CMAKE_THREAD_LIBS_INIT}")
-      endif()
-    endif()
-
-    configure_file("simdjson.pc.in" "simdjson.pc" @ONLY)
-    install(
-        FILES "${CMAKE_CURRENT_BINARY_DIR}/simdjson.pc"
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
-    )
 endif()
 
+install(
+    TARGETS simdjson
+    EXPORT simdjsonTargets
+    RUNTIME COMPONENT simdjson_Runtime
+    LIBRARY COMPONENT simdjson_Runtime
+    NAMELINK_COMPONENT simdjson_Development
+    ARCHIVE COMPONENT simdjson_Development
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+)
+configure_file(cmake/simdjson-config.cmake.in simdjson-config.cmake @ONLY)
+
+write_basic_package_version_file(
+    simdjson-config-version.cmake
+    COMPATIBILITY SameMinorVersion
+)
+
+set(
+    SIMDJSON_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/simdjson"
+    CACHE STRING "CMake package config location relative to the install prefix"
+)
+mark_as_advanced(SIMDJSON_INSTALL_CMAKEDIR)
+
+install(
+    FILES
+    "${PROJECT_BINARY_DIR}/simdjson-config.cmake"
+    "${PROJECT_BINARY_DIR}/simdjson-config-version.cmake"
+    DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
+    COMPONENT simdjson_Development
+)
+
+install(
+    EXPORT simdjsonTargets
+    NAMESPACE simdjson::
+    DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
+    COMPONENT simdjson_Development
+)
+
+if(SIMDJSON_BUILD_STATIC_LIB)
+  install(
+      TARGETS simdjson_static
+      EXPORT simdjson_staticTargets
+      ARCHIVE COMPONENT simdjson_Development
+      INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+  )
+  install(
+      EXPORT simdjson_staticTargets
+      NAMESPACE simdjson::
+      DESTINATION "${SIMDJSON_INSTALL_CMAKEDIR}"
+      COMPONENT simdjson_Development
+  )
+endif()
+
+# pkg-config
+include(cmake/JoinPaths.cmake)
+join_paths(PKGCONFIG_INCLUDEDIR "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
+join_paths(PKGCONFIG_LIBDIR "\${prefix}" "${CMAKE_INSTALL_LIBDIR}")
+
+if(SIMDJSON_ENABLE_THREADS)
+  set(PKGCONFIG_CFLAGS "-DSIMDJSON_THREADS_ENABLED=1")
+  if(CMAKE_THREAD_LIBS_INIT)
+    set(PKGCONFIG_LIBS_PRIVATE "Libs.private: ${CMAKE_THREAD_LIBS_INIT}")
+  endif()
+endif()
+
+configure_file("simdjson.pc.in" "simdjson.pc" @ONLY)
+install(
+    FILES "${CMAKE_CURRENT_BINARY_DIR}/simdjson.pc"
+    DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
+)
+
 #
 # CPack
 #
@@ -452,25 +373,18 @@ add_subdirectory(fuzz)
 #
 # Source files should be just ASCII
 #
-find_program(FIND_CMD find)
+find_program(FIND find)
-find_program(FILE_CMD file)
+find_program(FILE file)
-find_program(GREP_CMD grep)
+find_program(GREP grep)
-if(FIND_CMD AND FILE_CMD AND GREP_CMD)
+if(FIND AND FILE AND GREP)
   add_test(
       NAME just_ascii
       COMMAND sh -c "\
-non_ascii=$(${FIND_CMD} include src windows tools singleheader tests examples benchmark \
+${FIND} include src windows tools singleheader tests examples benchmark \
-  -path benchmark/checkperf-reference -prune -name '*.h' -o -name '*.cpp' \
+-path benchmark/checkperf-reference -prune -name '*.h' -o -name '*.cpp' \
-  -type f -exec ${FILE_CMD} '{}' \; | ${GREP_CMD} -v ASCII); \
+-type f -exec ${FILE} '{}' \; | ${GREP} -qv ASCII || exit 0  && exit 1"
-if [ -n \"$non_ascii\" ]; then \
-  echo 'The following files contain non-ASCII characters:'; \
-  echo \"$non_ascii\"; \
-  exit 1; \
-fi"
       WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
   )
-else()
-  message(WARNING "just_ascii test disabled because required tools were not found: find='${FIND_CMD}', file='${FILE_CMD}', grep='${GREP_CMD}'")
 endif()
 
 ##

CONTRIBUTING.md

@@ -101,10 +101,3 @@ Getting Started Hacking
 
 An overview of simdjson's directory structure, with pointers to architecture and design
 considerations and other helpful notes, can be found at [HACKING.md](HACKING.md).
-
-
-
-AI Usage Policy
----------------
-
-Please also review our [AI Usage Policy](AI_USAGE_POLICY.md).

Doxyfile

@@ -38,7 +38,7 @@ PROJECT_NAME           = simdjson
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "4.6.1"
+PROJECT_NUMBER         = "4.2.4"
 
 # 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

README.md

@@ -65,7 +65,6 @@ Real-world usage
 - [GreptimeDB](https://github.com/GreptimeTeam/greptimedb)
 - [mamba](https://github.com/mamba-org/mamba)
 - [Ladybird Browser](https://ladybird.org)
-- [SereneDB](https://github.com/serenedb/serenedb)
 
 
 If you are planning to use simdjson in a product, please work from one of our releases.
@@ -189,8 +188,6 @@ We distinguish between "bindings" (which just wrap the C++ code) and a port to a
 - [JSON::SIMD](https://metacpan.org/pod/JSON::SIMD): Perl bindings; fully-featured JSON module that uses simdjson for decoding.
 - [gemmaJSON](https://github.com/sainttttt/gemmaJSON): Nim JSON parser based on simdjson bindings.
 - [simdjson-java](https://github.com/simdjson/simdjson-java): Java port.
-- [mruby-fast-json](https://github.com/Asmod4n/mruby-fast-json): mruby binding with high API coverage.
-- [simdjson-dart](https://github.com/xaldarof/simdjson-dart): Dart bindings for the simdjson project.
 
 About simdjson
 --------------
@@ -201,7 +198,7 @@ CPU's multiple execution cores.
 
 Our default front-end is called On-Demand, and we wrote a paper about it:
 
-- John Keiser, Daniel Lemire, [On-Demand JSON: A Better Way to Parse Documents?](https://arxiv.org/abs/2312.17149), Software: Practice and Experience 54 (6), 2024.
+- John Keiser, Daniel Lemire, [On-Demand JSON: A Better Way to Parse Documents?](http://arxiv.org/abs/2312.17149), Software: Practice and Experience 54 (6), 2024.
 
 Some people [enjoy reading the first (2019) simdjson paper](https://arxiv.org/abs/1902.08318): A description of the design
 and implementation of simdjson is in our research article:
@@ -213,16 +210,10 @@ We have an in-depth paper focused on the UTF-8 validation:
 
 We also have an informal [blog post providing some background and context](https://branchfree.org/2019/02/25/paper-parsing-gigabytes-of-json-per-second/).
 
-For the video inclined, we had a talk at QCon San Francisco 2019<br />
+For the video inclined, <br />
-[![simdjson at QCon San Francisco 2019](https://img.youtube.com/vi/wlvKAT7SZIQ/0.jpg)](https://www.youtube.com/watch?v=wlvKAT7SZIQ)<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.)
 
-We also had a CppCon 2025 talk. We show how C++26 reflection allows for one-line serialization (to_json(player)) or deserialization—without invasive macros or manual mapping—using nothing but the C++ standard library. Whether you’re a performance junkie or simply interested in the roadmap for the next decade of C++ development, watch our full talk!
-
-[![simdjson at CppCon 2025](https://img.youtube.com/vi/Mcgk3CxHYMs/0.jpg)](https://www.youtube.com/watch?v=Mcgk3CxHYMs)<br />
-
-
-
 Citing this work
 -----------------
 
@@ -272,7 +263,7 @@ This code is made available under the [Apache License 2.0](https://www.apache.or
 
 Under Windows, we build some tools using the windows/dirent_portable.h file (which is outside our library code): it is under the liberal (business-friendly) MIT license.
 
-For compilers that do not support [C++17](https://en.wikipedia.org/wiki/C%2B%2B17), we bundle the string-view library which is published under the [Boost license](https://www.boost.org/LICENSE_1_0.txt). Like the Apache license, the Boost license is a permissive license allowing commercial redistribution.
+For compilers that do not support [C++17](https://en.wikipedia.org/wiki/C%2B%2B17), we bundle the string-view library which is published under the [Boost license](http://www.boost.org/LICENSE_1_0.txt). Like the Apache license, the Boost license is a permissive license allowing commercial redistribution.
 
 For efficient number serialization, we bundle Florian Loitsch's implementation of the Grisu2 algorithm for binary to decimal floating-point numbers. The implementation was slightly modified by JSON for Modern C++ library. Both Florian Loitsch's implementation and JSON for Modern C++ are provided under the MIT license.
 

benchmark/CMakeLists.txt

@@ -1,10 +1,9 @@
 add_subdirectory(dom)
 
 
-include_directories( . )
+include_directories( . linux )
 link_libraries(simdjson-windows-headers test-data)
 link_libraries(simdjson)
-link_libraries(counters)
 if(SIMDJSON_STATIC_REFLECTION)
   add_compile_definitions(SIMDJSON_STATIC_REFLECTION=1)
 endif(SIMDJSON_STATIC_REFLECTION)
@@ -16,7 +15,6 @@ if (TARGET benchmark::benchmark)
   link_libraries(benchmark::benchmark)
   add_executable(bench_parse_call bench_parse_call.cpp)
   add_executable(bench_dom_api bench_dom_api.cpp)
-  add_executable(bench_stream_formats bench_stream_formats.cpp)
   if(SIMDJSON_EXCEPTIONS)
     add_executable(bench_ondemand bench_ondemand.cpp)
     if(TARGET yyjson)

benchmark/bench_ondemand.cpp

@@ -124,7 +124,6 @@ SIMDJSON_POP_DISABLE_WARNINGS
 #include "kostya/boostjson.h"
 
 #include "large_random/simdjson_ondemand.h"
-#include "large_random/simdjson_ondemand_ranges.h"
 #if SIMDJSON_COMPETITION_ONDEMAND_UNORDERED
 #include "large_random/simdjson_ondemand_unordered.h"
 #endif // SIMDJSON_COMPETITION_ONDEMAND_UNORDERED

benchmark/bench_stream_formats.cpp

@@ -1,216 +0,0 @@
-#include <benchmark/benchmark.h>
-#include <string>
-#include "simdjson.h"
-
-using namespace simdjson;
-
-namespace {
-
-enum class stream_case {
-  ndjson_small,
-  ndjson_large,
-  rfc7464_small,
-  rfc7464_large,
-  comma_delimited_small,
-  comma_delimited_large
-};
-
-constexpr size_t TARGET_BYTES = 128 * 1000 * 1000;
-constexpr size_t SMALL_PAYLOAD = 16;
-constexpr size_t LARGE_PAYLOAD = 4096;
-constexpr size_t BATCH_SIZE = 1 << 20;
-
-struct stream_dataset {
-  padded_string json;
-  size_t count{};
-};
-
-std::string make_document(size_t id, size_t payload_size) {
-  return std::string{"{\"id\":"} + std::to_string(id) +
-    ",\"name\":\"aaaaaaaa\",\"payload\":\"" +
-    std::string(payload_size, 'x') + "\",\"flag\":true}";
-}
-
-stream_dataset build_dataset(stream_case which) {
-  const bool small = which == stream_case::ndjson_small ||
-                     which == stream_case::rfc7464_small ||
-                     which == stream_case::comma_delimited_small;
-  const bool rfc = which == stream_case::rfc7464_small ||
-                   which == stream_case::rfc7464_large;
-  const bool comma = which == stream_case::comma_delimited_small ||
-                     which == stream_case::comma_delimited_large;
-  const size_t payload_size = small ? SMALL_PAYLOAD : LARGE_PAYLOAD;
-  const size_t count = TARGET_BYTES / (payload_size + 48);
-  std::string out;
-  out.reserve(count * (payload_size + 64));
-  for (size_t i = 0; i < count; i++) {
-    if (rfc) {
-      out += char(0x1E);
-    }
-    if (comma && i > 0) {
-      out += ',';
-    }
-    out += make_document(i, payload_size);
-    if (!comma) {
-      out += '\n';
-    }
-  }
-  return {padded_string(out), count};
-}
-
-const stream_dataset &get_dataset(stream_case which) {
-  static const stream_dataset ndjson_small =
-    build_dataset(stream_case::ndjson_small);
-  static const stream_dataset ndjson_large =
-    build_dataset(stream_case::ndjson_large);
-  static const stream_dataset rfc_small =
-    build_dataset(stream_case::rfc7464_small);
-  static const stream_dataset rfc_large =
-    build_dataset(stream_case::rfc7464_large);
-  static const stream_dataset comma_small =
-    build_dataset(stream_case::comma_delimited_small);
-  static const stream_dataset comma_large =
-    build_dataset(stream_case::comma_delimited_large);
-  switch (which) {
-    case stream_case::ndjson_small:
-      return ndjson_small;
-    case stream_case::ndjson_large:
-      return ndjson_large;
-    case stream_case::rfc7464_small:
-      return rfc_small;
-    case stream_case::rfc7464_large:
-      return rfc_large;
-    case stream_case::comma_delimited_small:
-      return comma_small;
-    case stream_case::comma_delimited_large:
-      return comma_large;
-  }
-  return ndjson_small;
-}
-
-void set_counters(benchmark::State &state, const stream_dataset &dataset) {
-  state.SetBytesProcessed(int64_t(state.iterations()) * int64_t(dataset.json.size()));
-  state.SetItemsProcessed(int64_t(state.iterations()) * int64_t(dataset.count));
-}
-
-template <stream_case which, bool threaded = true>
-static void bench_ondemand(benchmark::State &state) {
-  const auto &dataset = get_dataset(which);
-  ondemand::parser parser;
-  parser.threaded = threaded;
-  stream_format format = stream_format::whitespace_delimited;
-  if constexpr (which == stream_case::rfc7464_small ||
-                which == stream_case::rfc7464_large) {
-    format = stream_format::json_sequence;
-  } else if constexpr (which == stream_case::comma_delimited_small ||
-                       which == stream_case::comma_delimited_large) {
-    format = stream_format::comma_delimited;
-  }
-  for (const auto _ : state) {
-    ondemand::document_stream docs;
-    auto error = parser.iterate_many(dataset.json, BATCH_SIZE, format).get(docs);
-    if (error) {
-      state.SkipWithError(error_message(error));
-      return;
-    }
-    uint64_t sum = 0;
-    for (auto doc : docs) {
-      ondemand::object obj;
-      if ((error = doc.get_object().get(obj))) {
-        state.SkipWithError(error_message(error));
-        return;
-      }
-      uint64_t id;
-      if ((error = obj["id"].get_uint64().get(id))) {
-        state.SkipWithError(error_message(error));
-        return;
-      }
-      sum += id;
-    }
-    benchmark::DoNotOptimize(sum);
-  }
-  set_counters(state, dataset);
-}
-
-template <stream_case which>
-static void bench_dom(benchmark::State &state) {
-  const auto &dataset = get_dataset(which);
-  dom::parser parser;
-  parser.threaded = true;
-  stream_format format = stream_format::whitespace_delimited;
-  if constexpr (which == stream_case::rfc7464_small ||
-                which == stream_case::rfc7464_large) {
-    format = stream_format::json_sequence;
-  } else if constexpr (which == stream_case::comma_delimited_small ||
-                       which == stream_case::comma_delimited_large) {
-    format = stream_format::comma_delimited;
-  }
-  for (const auto _ : state) {
-    dom::document_stream docs;
-    auto error = parser.parse_many(dataset.json, BATCH_SIZE, format).get(docs);
-    if (error) {
-      state.SkipWithError(error_message(error));
-      return;
-    }
-    uint64_t sum = 0;
-    for (auto doc : docs) {
-      uint64_t id;
-      if ((error = doc["id"].get(id))) {
-        state.SkipWithError(error_message(error));
-        return;
-      }
-      sum += id;
-    }
-    benchmark::DoNotOptimize(sum);
-  }
-  set_counters(state, dataset);
-}
-
-} // namespace
-
-BENCHMARK(bench_ondemand<stream_case::ndjson_small>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_ondemand<stream_case::ndjson_large>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_ondemand<stream_case::rfc7464_small>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_ondemand<stream_case::rfc7464_large>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_ondemand<stream_case::comma_delimited_small>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_ondemand<stream_case::comma_delimited_large>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-// Non-threaded comma_delimited for comparison
-BENCHMARK(bench_ondemand<stream_case::comma_delimited_small, false>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_ondemand<stream_case::comma_delimited_large, false>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-
-BENCHMARK(bench_dom<stream_case::ndjson_small>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_dom<stream_case::ndjson_large>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_dom<stream_case::rfc7464_small>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_dom<stream_case::rfc7464_large>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_dom<stream_case::comma_delimited_small>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-BENCHMARK(bench_dom<stream_case::comma_delimited_large>)
-    ->UseRealTime()
-    ->DisplayAggregatesOnly(true);
-
-BENCHMARK_MAIN();

benchmark/benchfeatures.cpp

@@ -1,5 +1,4 @@
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 
 #include <cassert>
 #include <cctype>
@@ -26,6 +25,7 @@ using namespace counters;
 #include <string>
 #include <vector>
 
+#include "linux-perf-events.h"
 #ifdef __linux__
 #include <libgen.h>
 #endif
@@ -204,8 +204,12 @@ struct feature_benchmarker {
   }
   // Rate of 1-7-structural misses per 8-structural flip
   double struct1_7_miss_rate(BenchmarkStage stage) const {
+#if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+    return 1;
+#else
     if (!has_events()) { return 1; }
     return struct7_miss[stage].best.branch_misses() - struct7[stage].best.branch_misses() / double(struct7_miss.stats->blocks_with_1_structural_flipped);
+#endif
   }
   // Extra cost of an 8-15 structural block over a 1-7 structural block
   double struct8_15_cost(BenchmarkStage stage) const {
@@ -217,8 +221,12 @@ struct feature_benchmarker {
   }
   // Rate of 8-15-structural misses per 8-structural flip
   double struct8_15_miss_rate(BenchmarkStage stage) const {
+#if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+    return 1;
+#else
     if (!has_events()) { return 1; }
     return double(struct15_miss[stage].best.branch_misses() - struct15[stage].best.branch_misses()) / double(struct15_miss.stats->blocks_with_8_structurals_flipped);
+#endif
   }
 
   // Extra cost of a 16+-structural block over an 8-15 structural block (actual varies based on # of structurals!)
@@ -231,8 +239,12 @@ struct feature_benchmarker {
   }
   // Rate of 16-structural misses per 16-structural flip
   double struct16_miss_rate(BenchmarkStage stage) const {
+#if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+    return 1;
+#else
     if (!has_events()) { return 1; }
     return double(struct23_miss[stage].best.branch_misses() - struct23[stage].best.branch_misses()) / double(struct23_miss.stats->blocks_with_16_structurals_flipped);
+#endif
   }
 
 
@@ -246,8 +258,12 @@ struct feature_benchmarker {
   }
   // Rate of UTF-8 misses per UTF-8 flip
   double utf8_miss_rate(BenchmarkStage stage) const {
+#if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+    return 1;
+#else
     if (!has_events()) { return 1; }
     return double(utf8_miss[stage].best.branch_misses() - utf8[stage].best.branch_misses()) / double(utf8_miss.stats->blocks_with_utf8_flipped);
+#endif
   }
   // Extra cost of having escapes in a block
   double escape_cost(BenchmarkStage stage) const {
@@ -259,8 +275,12 @@ struct feature_benchmarker {
   }
   // Rate of escape misses per escape flip
   double escape_miss_rate(BenchmarkStage stage) const {
+#if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+    return 1;
+#else
     if (!has_events()) { return 1; }
     return double(escape_miss[stage].best.branch_misses() - escape[stage].best.branch_misses()) / double(escape_miss.stats->blocks_with_escapes_flipped);
+#endif
   }
 
 
@@ -358,6 +378,22 @@ struct feature_benchmarker {
   }
 };
 
+#if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+void print_file_effectiveness(BenchmarkStage stage, const char* filename, const benchmarker& results, const feature_benchmarker& features) {
+  double actual = results[stage].best.elapsed_ns() / double(results.stats->blocks);
+  double calc = features.calc_expected(stage, results);
+  double calc_misses = features.calc_expected_misses(stage, results);
+  double calc_miss_cost = features.calc_expected_miss_cost(stage, results);
+  printf("        | %-8s ", benchmark_stage_name(stage));
+  printf("| %-15s ",   filename);
+  printf("|    %8.3g ", features.calc_expected_feature_cost(stage, results));
+  printf("|    %8.3g ", calc_miss_cost);
+  printf("| %8.3g ",  calc);
+  printf("| %8.3g ",  actual);
+  printf("| %+8.3g ", actual - calc);
+  printf("| %13llu ", (long long unsigned)(calc_misses));
+}
+#else
 void print_file_effectiveness(BenchmarkStage stage, const char* filename, const benchmarker& results, const feature_benchmarker& features) {
   double actual = results[stage].best.elapsed_ns() / double(results.stats->blocks);
   double calc = features.calc_expected(stage, results);
@@ -381,6 +417,7 @@ void print_file_effectiveness(BenchmarkStage stage, const char* filename, const
   }
   printf("|\n");
 }
+#endif
 
 int main(int argc, char *argv[]) {
   // Read options

benchmark/benchmark.h

@@ -1,8 +1,7 @@
 #ifndef _BENCHMARK_H_
 #define _BENCHMARK_H_
 
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 
 /*
  * Prints the best number of operations per cycle where

benchmark/benchmarker.h

@@ -1,8 +1,7 @@
 #ifndef __BENCHMARKER_H
 #define __BENCHMARKER_H
 
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 #include "simdjson.h"
 
 #include <cassert>
@@ -29,9 +28,11 @@ using namespace counters;
 #include <string>
 #include <vector>
 
+#include "linux-perf-events.h"
 #ifdef __linux__
 #include <libgen.h>
 #endif
+#include "simdjson.h"
 
 #include <functional>
 
@@ -422,12 +423,18 @@ struct benchmarker {
         stage.instructions() / static_cast<double>(stats->structurals),
         stage.instructions() / static_cast<double>(stage.cycles())
       );
-      printf("%s%-13s: %7.0f branch misses (%6.2f%%)\n",
+#if !SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+      // NOTE: removed cycles/miss because it is a somewhat misleading stat
+      printf("%s%-13s: %7.0f branch misses (%6.2f%%) - %.0f cache misses (%6.2f%%) - %.2f cache references\n",
         prefix,
         "Misses",
         stage.branch_misses(),
-        percent(stage.branch_misses(), all_stages_without_allocation.branch_misses())
+        percent(stage.branch_misses(), all_stages_without_allocation.branch_misses()),
+        stage.cache_misses(),
+        percent(stage.cache_misses(), all_stages_without_allocation.cache_misses()),
+        stage.cache_references()
       );
+#endif
     }
   }
 

benchmark/car_builder/benchmark_car_builder.cpp

@@ -1,5 +1,4 @@
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 #include <random>
 #include <vector>
 

benchmark/dom/CMakeLists.txt

@@ -1,12 +1,11 @@
-include_directories( .. )
+include_directories( .. ../linux )
 link_libraries(simdjson-windows-headers test-data)
 link_libraries(simdjson)
-link_libraries(counters)
 
 add_executable(perfdiff perfdiff.cpp)
 add_executable(parse parse.cpp)
 add_executable(parse_stream parse_stream.cpp)
-
+add_executable(statisticalmodel statisticalmodel.cpp)
 
 add_executable(parse_noutf8validation parse.cpp)
 target_compile_definitions(parse_noutf8validation PRIVATE SIMDJSON_SKIPUTF8VALIDATION)

benchmark/dom/parse.cpp

@@ -1,5 +1,4 @@
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 
 #include <cassert>
 #include <cctype>
@@ -25,6 +24,7 @@ using namespace counters;
 #include <string>
 #include <vector>
 
+#include "linux-perf-events.h"
 #ifdef __linux__
 #include <libgen.h>
 #endif

benchmark/dom/statisticalmodel.cpp

@@ -0,0 +1,207 @@
+#include <iostream>
+#include <unistd.h>
+#include "simdjson.h"
+#ifdef __linux__
+#include "linux-perf-events.h"
+#endif
+
+size_t count_nonasciibytes(const uint8_t *input, size_t length) {
+  size_t count = 0;
+  for (size_t i = 0; i < length; i++) {
+    count += input[i] >> 7;
+  }
+  return count;
+}
+
+size_t count_backslash(const uint8_t *input, size_t length) {
+  size_t count = 0;
+  for (size_t i = 0; i < length; i++) {
+    count += (input[i] == '\\') ? 1 : 0;
+  }
+  return count;
+}
+
+struct stat_s {
+  size_t integer_count;
+  size_t float_count;
+  size_t string_count;
+  size_t backslash_count;
+  size_t non_ascii_byte_count;
+  size_t object_count;
+  size_t array_count;
+  size_t null_count;
+  size_t true_count;
+  size_t false_count;
+  size_t byte_count;
+  size_t structural_indexes_count;
+  bool valid;
+};
+
+using stat_t = struct stat_s;
+
+
+
+simdjson_inline void simdjson_process_atom(stat_t &s,
+                                         simdjson::dom::element element) {
+  if (element.is<int64_t>()) {
+    s.integer_count++;
+  } else if(element.is<std::string_view>()) {
+    s.string_count++;
+  } else if(element.is<double>()) {
+    s.float_count++;
+  } else if (element.is<bool>()) {
+    bool v;
+    simdjson::error_code error;
+    if ((error = element.get(v))) { std::cerr << error << std::endl; abort(); }
+    if (v) {
+      s.true_count++;
+    } else {
+      s.false_count++;
+    }
+  } else if (element.is_null()) {
+    s.null_count++;
+  }
+}
+
+void simdjson_recurse(stat_t &s, simdjson::dom::element element) {
+  simdjson::error_code error;
+  if (element.is<simdjson::dom::array>()) {
+    s.array_count++;
+    simdjson::dom::array array;
+    if ((error = element.get(array))) { std::cerr << error << std::endl; abort(); }
+    for (auto child : array) {
+      if (child.is<simdjson::dom::array>() || child.is<simdjson::dom::object>()) {
+        simdjson_recurse(s, child);
+      } else {
+        simdjson_process_atom(s, child);
+      }
+    }
+  } else if (element.is<simdjson::dom::object>()) {
+    s.object_count++;
+    simdjson::dom::object object;
+    if ((error = element.get(object))) { std::cerr << error << std::endl; abort(); }
+    for (auto field : object) {
+      s.string_count++; // for key
+      if (field.value.is<simdjson::dom::array>() || field.value.is<simdjson::dom::object>()) {
+        simdjson_recurse(s, field.value);
+      } else {
+        simdjson_process_atom(s, field.value);
+      }
+    }
+  } else {
+    simdjson_process_atom(s, element);
+  }
+}
+
+stat_t simdjson_compute_stats(const simdjson::padded_string &p) {
+  stat_t answer{};
+  simdjson::dom::parser parser;
+  simdjson::dom::element doc;
+  auto error = parser.parse(p).get(doc);
+  if (error) {
+    answer.valid = false;
+    return answer;
+  }
+  answer.valid = true;
+  answer.backslash_count =
+      count_backslash(reinterpret_cast<const uint8_t *>(p.data()), p.size());
+  answer.non_ascii_byte_count = count_nonasciibytes(
+      reinterpret_cast<const uint8_t *>(p.data()), p.size());
+  answer.byte_count = p.size();
+  answer.structural_indexes_count = parser.implementation->n_structural_indexes;
+  simdjson_recurse(answer, doc);
+  return answer;
+}
+
+int main(int argc, char *argv[]) {
+#ifndef _MSC_VER
+  int c;
+  while ((c = getopt(argc, argv, "")) != -1) {
+    switch (c) {
+
+    default:
+      abort();
+    }
+  }
+#else
+  int optind = 1;
+#endif
+  if (optind >= argc) {
+    std::cerr << "Reads json, prints stats. " << std::endl;
+    std::cerr << "Usage: " << argv[0] << " <jsonfile>" << std::endl;
+
+    exit(1);
+  }
+  const char *filename = argv[optind];
+  if (optind + 1 < argc) {
+    std::cerr << "warning: ignoring everything after " << argv[optind + 1]
+              << std::endl;
+  }
+  simdjson::padded_string p;
+  auto error = simdjson::padded_string::load(filename).get(p);
+  if (error) {
+    std::cerr << "Could not load the file " << filename << std::endl;
+    return EXIT_FAILURE;
+  }
+  stat_t s = simdjson_compute_stats(p);
+  if (!s.valid) {
+    std::cerr << "not a valid JSON" << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  printf("# integer_count float_count string_count backslash_count "
+         "non_ascii_byte_count object_count array_count null_count true_count "
+         "false_count byte_count structural_indexes_count ");
+#ifdef __linux__
+  printf("  stage1_cycle_count stage1_instruction_count  stage2_cycle_count "
+         " stage2_instruction_count  stage3_cycle_count "
+         "stage3_instruction_count  ");
+#else
+  printf("(you are not under linux, so perf counters are disaabled)");
+#endif
+  printf("\n");
+  printf("%zu %zu %zu %zu %zu %zu %zu %zu %zu %zu %zu %zu ", s.integer_count,
+         s.float_count, s.string_count, s.backslash_count,
+         s.non_ascii_byte_count, s.object_count, s.array_count, s.null_count,
+         s.true_count, s.false_count, s.byte_count, s.structural_indexes_count);
+#ifdef __linux__
+  simdjson::dom::parser parser;
+  simdjson::error_code alloc_error = parser.allocate(p.size());
+  if (alloc_error) {
+    std::cerr << alloc_error << std::endl;
+    return EXIT_FAILURE;
+  }
+  const uint32_t iterations = p.size() < 1 * 1000 * 1000 ? 1000 : 50;
+  std::vector<int> evts;
+  evts.push_back(PERF_COUNT_HW_CPU_CYCLES);
+  evts.push_back(PERF_COUNT_HW_INSTRUCTIONS);
+  LinuxEvents<PERF_TYPE_HARDWARE> unified(evts);
+  unsigned long cy1 = 0, cy2 = 0;
+  unsigned long cl1 = 0, cl2 = 0;
+  std::vector<unsigned long long> results;
+  results.resize(evts.size());
+  for (uint32_t i = 0; i < iterations; i++) {
+    unified.start();
+    // The default template is simdjson::architecture::NATIVE.
+    bool isok = (parser.implementation->stage1((const uint8_t *)p.data(), p.size(), simdjson::stage1_mode::regular) == simdjson::SUCCESS);
+    unified.end(results);
+
+    cy1 += results[0];
+    cl1 += results[1];
+
+    unified.start();
+    isok = isok && (parser.implementation->stage2(parser.doc) == simdjson::SUCCESS);
+    unified.end(results);
+
+    cy2 += results[0];
+    cl2 += results[1];
+    if (!isok) {
+      std::cerr << "failure?" << std::endl;
+    }
+  }
+  printf("%f %f %f %f ", static_cast<double>(cy1) / static_cast<double>(iterations), static_cast<double>(cl1) / static_cast<double>(iterations),
+         static_cast<double>(cy2) / static_cast<double>(iterations), static_cast<double>(cl2) / static_cast<double>(iterations));
+#endif // __linux__
+  printf("\n");
+  return EXIT_SUCCESS;
+}

benchmark/event_counter.h

@@ -0,0 +1,201 @@
+#ifndef __EVENT_COUNTER_H
+#define __EVENT_COUNTER_H
+
+#ifndef SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+#ifdef __aarch64__
+// on ARM, we use just cycles and instructions
+#define SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS 1
+#else
+// elsewhere, we try to use four counters.
+#define SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS 0
+#endif
+#endif
+#include <cassert>
+#include <cctype>
+#ifndef _MSC_VER
+#include <dirent.h>
+#endif
+#include <unistd.h>
+#include <cinttypes>
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#include <algorithm>
+#include <chrono>
+#include <cstring>
+#include <fstream>
+#include <iomanip>
+#include <iostream>
+#include <map>
+#include <set>
+#include <sstream>
+#include <string>
+#include <vector>
+
+#ifdef __linux__
+#include "linux-perf-events.h"
+#include <libgen.h>
+#endif
+
+#if __APPLE__ &&  __aarch64__
+#include "apple/apple_arm_events.h"
+#endif
+
+#include "simdjson.h"
+
+using std::string;
+using std::vector;
+using std::chrono::steady_clock;
+using std::chrono::time_point;
+using std::chrono::duration;
+
+struct event_count {
+  duration<double> elapsed;
+  vector<unsigned long long> event_counts;
+  event_count() : elapsed(0), event_counts{0,0,0,0,0} {}
+  event_count(const duration<double> _elapsed, const vector<unsigned long long> _event_counts) : elapsed(_elapsed), event_counts(_event_counts) {}
+  event_count(const event_count& other): elapsed(other.elapsed), event_counts(other.event_counts) { }
+
+  // The types of counters (so we can read the getter more easily)
+  #if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+  enum event_counter_types {
+    CPU_CYCLES,
+    INSTRUCTIONS
+  };
+  #else
+  enum event_counter_types {
+    CPU_CYCLES,
+    INSTRUCTIONS,
+    BRANCH_MISSES,
+    CACHE_REFERENCES,
+    CACHE_MISSES
+  };
+  #endif
+  double elapsed_sec() const { return duration<double>(elapsed).count(); }
+  double elapsed_ns() const { return duration<double, std::nano>(elapsed).count(); }
+  double cycles() const { return static_cast<double>(event_counts[CPU_CYCLES]); }
+  double instructions() const { return static_cast<double>(event_counts[INSTRUCTIONS]); }
+#if !SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+  double branch_misses() const { return static_cast<double>(event_counts[BRANCH_MISSES]); }
+  double cache_references() const { return static_cast<double>(event_counts[CACHE_REFERENCES]); }
+  double cache_misses() const { return static_cast<double>(event_counts[CACHE_MISSES]); }
+#endif
+  event_count& operator=(const event_count& other) {
+    this->elapsed = other.elapsed;
+    this->event_counts = other.event_counts;
+    return *this;
+  }
+  event_count operator+(const event_count& other) const {
+    return event_count(elapsed+other.elapsed, {
+      event_counts[0]+other.event_counts[0],
+      event_counts[1]+other.event_counts[1],
+      event_counts[2]+other.event_counts[2],
+      event_counts[3]+other.event_counts[3],
+      event_counts[4]+other.event_counts[4],
+    });
+  }
+
+  void operator+=(const event_count& other) {
+    *this = *this + other;
+  }
+};
+
+struct event_aggregate {
+  int iterations = 0;
+  event_count total{};
+  event_count best{};
+  event_count worst{};
+
+  event_aggregate() {}
+
+  void operator<<(const event_count& other) {
+    if (iterations == 0 || other.elapsed < best.elapsed) {
+      best = other;
+    }
+    if (iterations == 0 || other.elapsed > worst.elapsed) {
+      worst = other;
+    }
+    iterations++;
+    total += other;
+  }
+
+  double elapsed_sec() const { return total.elapsed_sec() / iterations; }
+  double total_elapsed_ns() const { return total.elapsed_ns(); }
+  double elapsed_ns() const { return total.elapsed_ns() / iterations; }
+  double cycles() const { return total.cycles() / iterations; }
+  double instructions() const { return total.instructions() / iterations; }
+#if !SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+  double branch_misses() const { return total.branch_misses() / iterations; }
+  double cache_references() const { return total.cache_references() / iterations; }
+  double cache_misses() const { return total.cache_misses() / iterations; }
+#endif
+};
+
+struct event_collector {
+  event_count count{};
+  time_point<steady_clock> start_clock{};
+
+#if defined(__linux__)
+  LinuxEvents<PERF_TYPE_HARDWARE> linux_events;
+  event_collector() : linux_events(vector<int>{
+  #if SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
+    PERF_COUNT_HW_CPU_CYCLES,
+    PERF_COUNT_HW_INSTRUCTIONS,
+  #else
+    PERF_COUNT_HW_CPU_CYCLES,
+    PERF_COUNT_HW_INSTRUCTIONS,
+    PERF_COUNT_HW_BRANCH_MISSES,
+    PERF_COUNT_HW_CACHE_REFERENCES,
+    PERF_COUNT_HW_CACHE_MISSES
+  #endif
+  }) {}
+  bool has_events() {
+    return linux_events.is_working();
+  }
+#elif __APPLE__ &&  __aarch64__
+  AppleEvents apple_events;
+  performance_counters diff;
+  event_collector() : diff(0) {
+    apple_events.setup_performance_counters();
+  }
+  bool has_events() {
+    return apple_events.setup_performance_counters();
+  }
+#else
+  event_collector() {}
+  bool has_events() {
+    return false;
+  }
+#endif
+
+  simdjson_inline void start() {
+#if defined(__linux)
+    linux_events.start();
+#elif __APPLE__ &&  __aarch64__
+    if(has_events()) { diff = apple_events.get_counters(); }
+#endif
+    start_clock = steady_clock::now();
+  }
+  simdjson_inline event_count& end() {
+    time_point<steady_clock> end_clock = steady_clock::now();
+#if defined(__linux)
+    linux_events.end(count.event_counts);
+#elif __APPLE__ &&  __aarch64__
+    if(has_events()) {
+      performance_counters end = apple_events.get_counters();
+      diff = end - diff;
+    }
+    count.event_counts[0] = diff.cycles;
+    count.event_counts[1] = diff.instructions;
+    count.event_counts[2] = diff.missed_branches;
+    count.event_counts[3] = 0;
+    count.event_counts[4] = 0;
+#endif
+    count.elapsed = end_clock - start_clock;
+    return count;
+  }
+};
+
+#endif

benchmark/from/benchmark_helpers.h

@@ -1,8 +1,7 @@
 #ifndef BENCHMARK_HELPERS_H
 #define BENCHMARK_HELPERS_H
 
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 #include <atomic>
 
 event_collector collector;

benchmark/json_benchmark/run_json_benchmark.h

@@ -1,8 +1,7 @@
 #pragma once
 
 #include "simdjson.h"
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 #include <iostream>
 
 namespace json_benchmark {
@@ -59,7 +58,11 @@ template<typename B, typename R> static void run_json_benchmark(benchmark::State
   if (collector.has_events()) {
     state.counters["instructions"] = events.instructions();
     state.counters["cycles"]       = events.cycles();
+#if !SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
     state.counters["branch_miss"]  = events.branch_misses();
+    state.counters["cache_miss"]   = events.cache_misses();
+    state.counters["cache_ref"]    = events.cache_references();
+#endif
     state.counters["instructions_per_byte"]  = events.instructions() / double(bench.bytes_per_iteration());
     state.counters["instructions_per_cycle"] = events.instructions() / events.cycles();
     state.counters["cycles_per_byte"]        = events.cycles()       / double(bench.bytes_per_iteration());
@@ -67,7 +70,11 @@ template<typename B, typename R> static void run_json_benchmark(benchmark::State
 
     state.counters["best_instructions"] = events.best.instructions();
     state.counters["best_cycles"]       = events.best.cycles();
+#if !SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
     state.counters["best_branch_miss"]  = events.best.branch_misses();
+    state.counters["best_cache_miss"]   = events.best.cache_misses();
+    state.counters["best_cache_ref"]    = events.best.cache_references();
+#endif
 
     state.counters["best_instructions_per_byte"]  = events.best.instructions() / double(bench.bytes_per_iteration());
     state.counters["best_instructions_per_cycle"] = events.best.instructions() / events.best.cycles();
@@ -88,7 +95,11 @@ template<typename B, typename R> static void run_json_benchmark(benchmark::State
   if (collector.has_events()) {
     label << " instructions=" << setw(12) << uint64_t(events.best.instructions())     << setw(0);
     label << " cycles="       << setw(12) << uint64_t(events.best.cycles())           << setw(0);
+#if !SIMDJSON_SIMPLE_PERFORMANCE_COUNTERS
     label << " branch_miss="  << setw(8)  << uint64_t(events.best.branch_misses())    << setw(0);
+    label << " cache_miss="   << setw(8)  << uint64_t(events.best.cache_misses())     << setw(0);
+    label << " cache_ref="    << setw(10) << uint64_t(events.best.cache_references()) << setw(0);
+#endif
   }
 
   label << " items=" << setw(10) << bench.items_per_iteration() << setw(0);

benchmark/large_amazon_cellphones/large_amazon_cellphones.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "json_benchmark/string_runner.h"
-#include <fstream>
 #include <map>
 #include <string>
 

benchmark/large_random/simdjson_ondemand_ranges.h

@@ -1,32 +0,0 @@
-#pragma once
-
-#if SIMDJSON_EXCEPTIONS && SIMDJSON_SUPPORTS_RANGES
-
-#include "large_random.h"
-
-namespace large_random {
-
-using namespace simdjson;
-
-// Identical to simdjson_ondemand but uses get_range() for iteration.
-// Demonstrates that the ranges wrapper has zero per-element overhead.
-struct simdjson_ondemand_ranges {
-  static constexpr diff_flags DiffFlags = diff_flags::NONE;
-
-  ondemand::parser parser{};
-
-  bool run(simdjson::padded_string &json, std::vector<point> &result) {
-    auto doc = parser.iterate(json);
-    for (auto coord_result : ondemand::get_range(doc.get_array())) {
-      ondemand::object coord = coord_result;
-      result.emplace_back(json_benchmark::point{coord.find_field("x"), coord.find_field("y"), coord.find_field("z")});
-    }
-    return true;
-  }
-};
-
-BENCHMARK_TEMPLATE(large_random, simdjson_ondemand_ranges)->UseManualTime();
-
-} // namespace large_random
-
-#endif // SIMDJSON_EXCEPTIONS && SIMDJSON_SUPPORTS_RANGES

benchmark/largerandom/sax.h

@@ -103,12 +103,7 @@ error_code Sax::RunNoExcept(const padded_string &json) noexcept {
 
 error_code Sax::Allocate(size_t new_capacity) {
   // string_capacity copied from document::allocate
-  // a document with only zero-length strings... could have capacity/3 string
+  size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64);
-  // and we would need capacity/3 * 5 bytes on the string buffer
-  if(5 * (new_capacity / 3) + SIMDJSON_PADDING < SIMDJSON_PADDING) {
-    return CAPACITY; // overflow, only happen on legacy 32-bit systems with very large capacity
-  }
-  size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * (new_capacity / 3) + SIMDJSON_PADDING, 64);
   string_buf.reset(new (std::nothrow) uint8_t[string_capacity]);
   if (auto error = dom_parser.set_capacity(new_capacity)) { return error; }
   if (capacity == 0) { // set max depth the first time only

benchmark/linux/linux-perf-events.h

@@ -0,0 +1,105 @@
+#pragma once
+#ifdef __linux__
+
+#include <asm/unistd.h>       // for __NR_perf_event_open
+#include <linux/perf_event.h> // for perf event constants
+#include <sys/ioctl.h>        // for ioctl
+#include <unistd.h>           // for syscall
+
+#include <cerrno>  // for errno
+#include <cstring> // for memset
+#include <stdexcept>
+
+#include <iostream>
+#include <vector>
+
+template <int TYPE = PERF_TYPE_HARDWARE> class LinuxEvents {
+  int fd;
+  bool working;
+  perf_event_attr attribs{};
+  size_t num_events{};
+  std::vector<uint64_t> temp_result_vec{};
+  std::vector<uint64_t> ids{};
+
+public:
+  explicit LinuxEvents(std::vector<int> config_vec) : fd(0), working(true) {
+    memset(&attribs, 0, sizeof(attribs));
+    attribs.type = TYPE;
+    attribs.size = sizeof(attribs);
+    attribs.disabled = 1;
+    attribs.exclude_kernel = 1;
+    attribs.exclude_hv = 1;
+
+    attribs.sample_period = 0;
+    attribs.read_format = PERF_FORMAT_GROUP | PERF_FORMAT_ID;
+    const int pid = 0;  // the current process
+    const int cpu = -1; // all CPUs
+    const unsigned long flags = 0;
+
+    int group = -1; // no group
+    num_events = config_vec.size();
+    ids.resize(config_vec.size());
+    uint32_t i = 0;
+    for (auto config : config_vec) {
+      attribs.config = config;
+      int _fd = static_cast<int>(syscall(__NR_perf_event_open, &attribs, pid, cpu, group, flags));
+      if (_fd == -1) {
+        report_error("perf_event_open");
+      }
+      ioctl(_fd, PERF_EVENT_IOC_ID, &ids[i++]);
+      if (group == -1) {
+        group = _fd;
+        fd = _fd;
+      }
+    }
+
+    temp_result_vec.resize(num_events * 2 + 1);
+  }
+
+  ~LinuxEvents() { if (fd != -1) { close(fd); } }
+
+  inline void start() {
+    if (fd != -1) {
+      if (ioctl(fd, PERF_EVENT_IOC_RESET, PERF_IOC_FLAG_GROUP) == -1) {
+        report_error("ioctl(PERF_EVENT_IOC_RESET)");
+      }
+
+      if (ioctl(fd, PERF_EVENT_IOC_ENABLE, PERF_IOC_FLAG_GROUP) == -1) {
+        report_error("ioctl(PERF_EVENT_IOC_ENABLE)");
+      }
+    }
+  }
+
+  inline void end(std::vector<unsigned long long> &results) {
+    if (fd != -1) {
+      if (ioctl(fd, PERF_EVENT_IOC_DISABLE, PERF_IOC_FLAG_GROUP) == -1) {
+        report_error("ioctl(PERF_EVENT_IOC_DISABLE)");
+      }
+
+      if (read(fd, temp_result_vec.data(), temp_result_vec.size() * 8) == -1) {
+        report_error("read");
+      }
+    }
+    // our actual results are in slots 1,3,5, ... of this structure
+    for (uint32_t i = 1; i < temp_result_vec.size(); i += 2) {
+      results[i / 2] = temp_result_vec[i];
+    }
+    for (uint32_t i = 2; i < temp_result_vec.size(); i += 2) {
+      if(ids[i/2-1] != temp_result_vec[i]) {
+        report_error("event mismatch");
+      }
+    }
+
+
+  }
+
+  bool is_working() {
+    return working;
+  }
+
+private:
+  void report_error(const std::string &) {
+    working = false;
+  }
+};
+#endif

benchmark/partial_tweets/tweet.h

@@ -10,7 +10,7 @@ namespace partial_tweets {
 //     {
 //       "created_at": "Sun Aug 31 00:29:15 +0000 2014",
 //       "id": 505874924095815700,
-//       "text": "@aym0566x ...",
+//       "text": "@aym0566x \n\n名前:前田あゆみ\n第一印象:なんか怖っ！\n今の印象:とりあえずキモい。噛み合わない\n好きなところ:ぶすでキモいとこ😋✨✨\n思い出:んーーー、ありすぎ😊❤️\nLINE交換できる？:あぁ……ごめん✋\nトプ画をみて:照れますがな😘✨\n一言:お前は一生もんのダチ💖",
 //       "in_reply_to_status_id": null,
 //       "user": {
 //         "id": 1186275104,

benchmark/partial_tweets/yyjson.h

@@ -61,29 +61,22 @@ struct yyjson_base {
 };
 
 struct yyjson : yyjson_base {
-  // The document owns the string memory that result's string_views point into,
-  // so it must outlive each run() (the verification diff happens after run()
-  // returns). Free it on the next run() / at destruction, not before the views
-  // are read.
-  yyjson_doc *doc{};
-  ~yyjson() { if (doc != nullptr) { yyjson_doc_free(doc); } }
   bool run(simdjson::padded_string &json, std::vector<tweet<std::string_view>> &result) {
-    if (doc != nullptr) { yyjson_doc_free(doc); doc = nullptr; }
+    yyjson_doc *doc = yyjson_read(json.data(), json.size(), 0);
-    doc = yyjson_read(json.data(), json.size(), 0);
+    bool b = yyjson_base::run(doc, result);
-    return yyjson_base::run(doc, result);
+    yyjson_doc_free(doc);
+    return b;
   }
 };
 BENCHMARK_TEMPLATE(partial_tweets, yyjson)->UseManualTime();
 
 #if SIMDJSON_COMPETITION_ONDEMAND_INSITU
 struct yyjson_insitu : yyjson_base {
-  // See the note on yyjson above: the document must outlive result's views.
-  yyjson_doc *doc{};
-  ~yyjson_insitu() { if (doc != nullptr) { yyjson_doc_free(doc); } }
   bool run(simdjson::padded_string &json, std::vector<tweet<std::string_view>> &result) {
-    if (doc != nullptr) { yyjson_doc_free(doc); doc = nullptr; }
+    yyjson_doc *doc = yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0);
-    doc = yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0);
+    bool b = yyjson_base::run(doc, result);
-    return yyjson_base::run(doc, result);
+    yyjson_doc_free(doc);
+    return b;
   }
 };
 BENCHMARK_TEMPLATE(partial_tweets, yyjson_insitu)->UseManualTime();

benchmark/static_reflect/benchmark_utils/benchmark_helper.h

@@ -1,7 +1,6 @@
 #ifndef BENCHMARK_HELPER_HPP
 #define BENCHMARK_HELPER_HPP
-#include <counters/event_counter.h>
+#include "event_counter.h"
-using namespace counters;
 #include <atomic>
 
 inline event_collector &get_collector() {

benchmark/static_reflect/citm_catalog_benchmark/benchmark_parsing_citm.cpp

@@ -8,6 +8,7 @@
 #include <simdjson.h>
 #include <string>
 #include "citm_catalog_data.h"
+// NOTE: citm_traits.h NOT included because CITM JSON fields are NOT in struct order
 #include "nlohmann_citm_catalog_data.h"
 #include "../benchmark_utils/benchmark_helper.h"
 

benchmark/static_reflect/twitter_benchmark/benchmark_parsing_twitter.cpp

@@ -8,6 +8,7 @@
 #include <simdjson.h>
 #include <string>
 #include "twitter_data.h"
+// NOTE: twitter_traits.h NOT included because Twitter JSON fields are NOT in struct order
 #include "nlohmann_twitter_data.h"
 #include "../benchmark_utils/benchmark_helper.h"
 #ifdef SIMDJSON_COMPETITION_RAPIDJSON

dependencies/CMakeLists.txt

@@ -12,7 +12,7 @@ cmake_dependent_option(SIMDJSON_GOOGLE_BENCHMARKS "compile the Google Benchmark
 if(SIMDJSON_GOOGLE_BENCHMARKS)
   CPMAddPackage(
         NAME google_benchmarks
-        URL https://github.com/google/benchmark/archive/refs/tags/v1.9.5.zip
+        URL https://github.com/google/benchmark/archive/refs/tags/v1.9.4.zip
         OPTIONS
         "BENCHMARK_ENABLE_TESTING OFF"
         "BENCHMARK_ENABLE_INSTALL OFF"
@@ -20,14 +20,6 @@ if(SIMDJSON_GOOGLE_BENCHMARKS)
   )
 endif()
 
-CPMAddPackage(
-        NAME counters
-        URL https://github.com/lemire/counters/archive/refs/tags/v3.1.0.zip
-        OPTIONS
-        "COUNTERS_BUILD_TESTS OFF"
-        "COUNTERS_INSTALL OFF"
-)
-
 CPMAddPackage(
         NAME simdjson-data
         URL https://github.com/simdjson/simdjson-data/archive/351949906abde446f0314bf79606fb5d884f5be7.zip

doc/basics.md

@@ -23,15 +23,11 @@ separate document](https://github.com/simdjson/simdjson/blob/master/doc/builder.
   * [2. Use `tag_invoke` for custom types (C++20)](#2-use-tag_invoke-for-custom-types-c20)
   * [3. Using static reflection (C++26)](#3-using-static-reflection-c26)
     + [Special cases](#special-cases)
-    + [Renaming and skipping fields with annotations](#renaming-and-skipping-fields-with-annotations)
   * [The simdjson::from shortcut (experimental, C++20)](#the-simdjsonfrom-shortcut-experimental-c20)
 - [Minifying JSON strings without parsing](#minifying-json-strings-without-parsing)
 - [UTF-8 validation (alone)](#utf-8-validation-alone)
 - [JSON Pointer](#json-pointer)
 - [JSONPath](#jsonpath)
-  * [Using `for_each_at_path_with_wildcard` for JSONPath Queries (On-Demand)](#using-for_each_at_path_with_wildcard-for-jsonpath-queries-on-demand)
-    + [Example Usage](#example-usage)
-- [C++20 Ranges Support](#c20-ranges-support)
 - [Compile-Time JSONPath and JSON Pointer (C++26 Reflection)](#compile-time-jsonpath-and-json-pointer-c26-reflection)
 - [Error handling](#error-handling)
   * [Error handling examples without exceptions](#error-handling-examples-without-exceptions)
@@ -43,7 +39,6 @@ separate document](https://github.com/simdjson/simdjson/blob/master/doc/builder.
 - [Newline-Delimited JSON (ndjson) and JSON lines](#newline-delimited-json-ndjson-and-json-lines)
 - [Parsing numbers inside strings](#parsing-numbers-inside-strings)
 - [Dynamic Number Types](#dynamic-number-types)
-- [Infinity and NaN support](#infinity-and-nan-support)
 - [Raw strings from keys](#raw-strings-from-keys)
 - [General direct access to the raw JSON string](#general-direct-access-to-the-raw-json-string)
   * [Raw JSON string for objects and arrays](#raw-json-string-for-objects-and-arrays)
@@ -61,7 +56,7 @@ Requirements
 The simdjson library is widely deployed in popular systems such as the Node.js runtime
 environment.
 
-- A recent compiler (LLVM clang 6 or better, GNU GCC 7.4 or better, Xcode 11 or better) on POSIX systems such as macOS, FreeBSD or Linux. We require that the compiler supports the C++11 standard or better. We test the library on a big-endian system (IBM s390x with Linux). We support [Fil-C, the memory-safe C/C++ compiler](https://fil-c.org).
+- A recent compiler (LLVM clang 6 or better, GNU GCC 7.4 or better, Xcode 11 or better) on POSIX systems such as macOS, FreeBSD or Linux. We require that the compiler supports the C++11 standard or better. We test the library on a big-endian system (IBM s390x with Linux).
 - Visual Studio 2017 or better. We support the LLVM clang compiler under Visual Studio (clang-cl) as well as the regular Visual Studio compiler. For better release performance (both compile time and execution time), we recommend Visual Studio users adopt LLVM (clang-cl). We discourage using GCC under Windows: there [is a long-running bug with GCC under Windows](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412).
 
 Support for AVX-512 require a processor with AVX512-VBMI2 support (Ice Lake or better, AMD Zen 4 or better) under a 64-bit system and a recent compiler (LLVM clang 6 or better, GCC 8 or better, Visual Studio 2019 or better). You need a correspondingly recent assembler such as gas (2.30+) or nasm (2.14+): recent compilers usually come with recent assemblers. If you mix a recent compiler with an incompatible/old assembler (e.g., when using a recent compiler with an old Linux distribution), you may get errors at build time because the compiler produces instructions that the assembler does not recognize: you should update your assembler to match your compiler (e.g., upgrade binutils to version 2.30 or better under Linux) or use an older compiler matching the capabilities of your assembler.
@@ -166,77 +161,54 @@ The basics: loading and parsing JSON documents
 ----------------------------------------------
 
 The simdjson library allows you to navigate and validate JSON documents ([RFC 8259](https://www.tbray.org/ongoing/When/201x/2017/12/14/rfc8259.html)).
-Your JSON document should be a valid Unicode (UTF-8) string.
+As required by the standard, your JSON document should be in a Unicode (UTF-8) string. The whole
+string, from the beginning to the end, needs to be valid: we do not attempt to tolerate bad
+inputs before or after a document.
 
-To parse JSON, create a `ondemand::parser` and call its `iterate()` method on a padded input.
+For efficiency reasons, simdjson requires a string with a few bytes (`simdjson::SIMDJSON_PADDING`)
-The simplest way to load a JSON file is with `padded_string::load`:
+at the end, these bytes may be read but their content does not affect the parsing. In practice,
+it means that the JSON inputs should be stored in a memory region with `simdjson::SIMDJSON_PADDING`
+extra bytes at the end. You do not have to set these bytes to specific values though you may
+want to if you want to avoid runtime warnings with some sanitizers. We expect the user
+of the library to load the data (from disk or from the network) into a padded buffer. To make
+this easy, we provide the `padded_string::load` function which loads files from disk in a padded buffer.
+[You can similarly fetch a file from a URL to a padded string](https://github.com/simdjson/curltostring) using our `simdjson::padded_string_builder`. Advanced users may want to read the section Free Padding in [our performance notes](performance.md).
+
+The simdjson library offers a tree-like [API](https://en.wikipedia.org/wiki/API), which you can
+access by creating a `ondemand::parser` and calling the `iterate()` method. The iterate method
+quickly indexes the input string and may detect some errors. The following example illustrates
+how to get started with an input JSON file (`"twitter.json"`):
 
 ```cpp
 ondemand::parser parser;
-auto json = padded_string::load("twitter.json");
+auto json = padded_string::load("twitter.json"); // load JSON file 'twitter.json'.
-ondemand::document doc = parser.iterate(json);
+ondemand::document doc = parser.iterate(json); // position a pointer at the beginning of the JSON data
 ```
 
-For inline JSON strings, use the `_padded` suffix:
+(Windows users compiling with C++17 or better may use `wchar_t` strings to support non-ASCII
+filenames: `padded_string::load(L"twitter.json")`.)
 
-```cpp
+If you prefer not to create your own `ondemand::parser` instance, you can access
-ondemand::parser parser;
+a thread-local version by calling `ondemand::parser.get_parser()`.
-auto json = "[1,2,3]"_padded;
-ondemand::document doc = parser.iterate(json);
-```
 
-If you are compiling with C++17 or better, you can use `simdjson::padded_input`
-which accepts any string-like input and handles padding automatically:
-
-```cpp
-ondemand::parser parser;
-std::string_view json = "[1,2,3]";
-simdjson::padded_input input(json);
-ondemand::document doc = parser.iterate(input);
-
-// Also works with std::string, considering reserved capacity
-std::string json_str = "[1,2,3]";
-json_str.reserve(100);  // Reserve extra space
-simdjson::padded_input input2(json_str);  // May avoid copying
-ondemand::document doc2 = parser.iterate(input2);
-```
-
-The simdjson library also accepts `std::string` instances directly---if the provided
-reference is non-const, it will allocate padding as needed:
-
-```cpp
-ondemand::parser parser;
-std::string json = "[1,2,3]";
-ondemand::document doc = parser.iterate(json);
-```
-
-By default, the simdjson library throws exceptions (`simdjson_error`) on errors. We omit `try`-`catch` clauses from our illustrating examples: if you omit `try`-`catch` in your code, an uncaught exception will halt your program. It is also possible to use simdjson without generating exceptions, and you may even build the library without exception support at all. See [Error handling](#error-handling) for details.
-
-
-### Advanced input options
-
-This section covers additional ways to provide JSON input to simdjson, including
-options for fine-grained control over padding and memory.
-
-**Thread-local parser.** If you prefer not to create your own `ondemand::parser` instance, you can access
-a thread-local version by calling `ondemand::parser.get_parser()`:
 
 ```cpp
 ondemand::document doc = ondemand::parser.get_parser().iterate(json);
 ```
 
-A parser instance can only be used for one document at a time, so
+However, you should be careful because a parser instance can only be used for one
-the thread-local parser is only applicable when you parse one
+document at a time, thus it is only applicable when you are only parsing one
 document per thread at any one time.
 
-**`padded_input` details (C++17+).** The actual padding only occurs when the JSON string ends near the boundary of a memory page, which is
+You can also create a padded string---and call `iterate()`:
-uncommon. Using a `simdjson::padded_input` is safe although sanitizers and tools like valgrind
-might report illegal reads (which are safe in our case because they remain in the mapped page). You should avoid `simdjson::padded_input`
-on systems without a page size of at least 4096: virtually all systems qualify except for
-some niche embedded systems running custom operating systems. Standard Linux, Windows, macOS, Android, iOS, etc., are all fine. Note that, most times, a `simdjson::padded_input` instance will not copy the data and will only act
-as a view (it does not own the memory).
 
-**User-managed buffers.** If you have a buffer of your own with enough padding already (`SIMDJSON_PADDING` extra bytes allocated), you can use `padded_string_view` to pass it in:
+```cpp
+ondemand::parser parser;
+auto json = "[1,2,3]"_padded; // The _padded suffix creates a simdjson::padded_string instance
+ondemand::document doc = parser.iterate(json); // parse a string
+```
+
+If you have a buffer of your own with enough padding already (SIMDJSON_PADDING extra bytes allocated), you can use `padded_string_view` to pass it in:
 
 ```cpp
 ondemand::parser parser;
@@ -245,99 +217,60 @@ strcpy(json, "[1]");
 ondemand::document doc = parser.iterate(json, strlen(json), sizeof(json));
 ```
 
-**Copying into a `padded_string`.** You can copy your data directly into a `simdjson::padded_string`:
+The simdjson library will also accept `std::string` instances. If the provided
+reference is non-const, it will allocate padding as needed.
+
+You can copy your data directly on a `simdjson::padded_string` as follows:
 
 ```cpp
 const char * data = "my data"; // 7 bytes
 simdjson::padded_string my_padded_data(data, 7); // copies to a padded buffer
 ```
 
-Or from a `std::string`:
+Or as follows...
 
 ```cpp
 std::string data = "my data";
 simdjson::padded_string my_padded_data(data); // copies to a padded buffer
 ```
 
-**`std::string` and sanitizer warnings.** Whenever you pass an `std::string` reference to `parser::iterate`,
+You can then parse the JSON data from the `simdjson::padded_string` instance:
-the parser may access bytes beyond the end of
+
+
+```cpp
+ondemand::document doc = parser.iterate(my_padded_data);
+```
+
+Whenever you pass an `std::string` reference to `parser::iterate`,
+the parser will access the bytes beyond the end of
 the string but before the end of the allocated memory (`std::string::capacity()`).
-Sanitizers that check for reading uninitialized bytes may produce warnings.
+If you are using a sanitizer that checks for reading uninitialized bytes or `std::string`'s
-You can safely ignore these warnings, or call `simdjson::pad(std::string&)` to pad the
+container-overflow checks, you may encounter sanitizer warnings.
-string explicitly:
+You can safely ignore these warnings. Or you can call `simdjson::pad(std::string&)` to pad the
+string with `SIMDJSON_PADDING` spaces: this function returns a `simdjson::padding_string_view` which can be be passed to the parser's iterator function:
 
 ```cpp
 std::string json = "[1]";
 ondemand::document doc = parser.iterate(simdjson::pad(json));
 ```
 
-We recommend against creating many `std::string` or many `std::padded_string` instances in your application to store your JSON data.
+We recommend against creating many `std::string` or many `std::padding_string` instances in your application to store your JSON data.
 Consider reusing the same buffers and limiting memory allocations.
 
-**Memory-file mapping.** You can use `simdjson::padded_memory_map` to create a
+By default, the simdjson library throws exceptions (`simdjson_error`) on errors. We omit `try`-`catch` clauses from our illustrating examples: if you omit `try`-`catch` in your code, an uncaught exception will halt your program. It is also possible to use simdjson without generating exceptions, and you may even build the library without exception support at all. See [Error handling](#error-handling) for details.
-`simdjson::padded_string_view` from a file on disk. On POSIX systems (Linux,
-macOS, BSD, ...) it uses `mmap` for true zero-copy access and is always
-available. On Windows it is an **opt-in** feature because it relies on the
-`CreateFileMapping2` / `MapViewOfFile3` APIs (Windows 10, version 1803 or
-later) which are exported from `onecore.lib` rather than the default
-`kernel32.lib`. To enable it, you must satisfy **all** of the following:
 
-1. Building simdjson with `-DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=ON`, or
+Some users may want to browse code along with the compiled assembly. You want to check out the following lists of examples:
-   defining `SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=1` and raising
-   `NTDDI_VERSION` to at least `NTDDI_WIN10_RS4` (Windows 10, version 1803)
-   and linking `onecore.lib` manually if you are consuming simdjson as a
-   pre-built library.
-2. `#include <windows.h>` before including simdjson, in every translation
-   unit that uses `padded_memory_map`.
 
-The Windows implementation then uses `CreateFileMapping2` / `MapViewOfFile3`
+* [simdjson examples with errors handled through exceptions](https://godbolt.org/z/98Kx9Kqjn)
-for true zero-copy access whenever possible, with a transparent
+* [simdjson examples with errors without exceptions](https://godbolt.org/z/PKG7GdbPo)
-buffered-read fallback for files that end too close to a page boundary.
 
-The availability of the class can be tested with the preprocessor macro
+*Windows-specific*:  Windows users who need to read files with
-`SIMDJSON_HAS_PADDED_MEMORY_MAP`.
-
-```cpp
-#ifdef _WIN32
-#include <windows.h> // Must come BEFORE <simdjson.h> on Windows
-#endif
-#include "simdjson.h"
-// ...
-simdjson::padded_memory_map map(myfilename);
-if (!map.is_valid()) { /* handle error */ }
-simdjson::padded_string_view view = map.view();
-ondemand::document doc = parser.iterate(view);
-```
-
-**Windows-specific notes.** Windows users compiling with C++17 or better may use `wchar_t` strings to support non-ASCII
-filenames: `padded_string::load(L"twitter.json")`. Windows users who need to read files with
 non-ANSI characters in the name should set their code page to
 UTF-8 (65001). This should be the default with Windows 11 and better.
 Further, they may use the AreFileApisANSI function to determine whether
 the filename is interpreted using the ANSI or the system default OEM
 codepage, and they may call SetFileApisToOEM accordingly.
 
-Some users may want to browse code along with the compiled assembly:
-
-* [simdjson examples with errors handled through exceptions](https://godbolt.org/z/98Kx9Kqjn)
-* [simdjson examples with errors without exceptions](https://godbolt.org/z/PKG7GdbPo)
-
-**Summary of input types:**
-
-
-| Input Type / Method                          | Padding Requirement                                                                 | How Padding is Handled                                                                 | Ownership / Copying                          | Notes / Warnings                                                                 |
-|----------------------------------------------|-------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|----------------------------------------------|----------------------------------------------------------------------------------|
-| `padded_string::load("file.json")`           | Automatic (SIMDJSON_PADDING extra bytes)                                           | Library allocates padded buffer and loads file into it                                 | Owned by `padded_string`                     | Recommended for files; safest and simplest.                                      |
-| `"...json..."_padded` literal                | Automatic (built-in padding)                                                        | Creates `padded_string` with padding                                                   | Owned by `padded_string`                     | Convenient for small hardcoded JSON.                                             |
-| `simdjson::padded_input` (C++17+)            | Automatic when needed                                                               | Adds padding **only** if the string ends near a memory page boundary. For `std::string`, considers `capacity()` | Usually a non-owning view (no copy most times) | Safe on standard OS (page size ≥ 4096). May trigger sanitizer/valgrind warnings (harmless). Avoid on niche embedded systems. |
-| User buffer with explicit padding            | Must have at least `SIMDJSON_PADDING` extra allocated bytes after JSON content     | Pass via `iterate(ptr, json_length, total_allocated_size)` or `padded_string_view`     | User-owned (no copy)                         | Use `char buf[len + SIMDJSON_PADDING]`. Library reads (but never writes) into padding. |
-| `std::string` (non-const)                    | Library checks `capacity()`                                                         | If insufficient, library may allocate a padded copy                                    | May copy (depends on capacity)               | Can trigger sanitizer warnings on uninitialized bytes. Use `simdjson::pad(json)` to avoid. |
-| `simdjson::pad(std::string&)`                | Adds padding if needed                                                              | Returns `padded_string_view` pointing to the (possibly resized) string                 | References original string                   | Recommended to silence sanitizers when using `std::string`.                      |
-| `padded_string(data, length)` or `padded_string(std::string)` | Automatic (copies into padded buffer)                                              | Explicit copy into owned padded buffer                                                 | Owned by `padded_string`                     | Safe when you want full ownership and padding guaranteed.                        |
-| `padded_string_view` (manual)                | User guarantees `SIMDJSON_PADDING` extra bytes after the viewed length             | User provides pointer + length + capacity                                              | Non-owning view                              | Low-level; requires careful buffer management.                                   |
-| Memory-mapped file (`padded_memory_map`)     | Automatic via mapping / padded read                                                 | Creates view with sufficient padding                                                   | Non-owning (tied to map lifetime)            | Always available on POSIX (zero-copy `mmap`). On Windows, opt-in via `-DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=ON` (requires Windows 10 1803+ and links `onecore.lib`) and `#include <windows.h>` before simdjson; uses `CreateFileMapping2` + `MapViewOfFile3`. |
-
-
 Documents are iterators
 -----------------------
 
@@ -441,10 +374,6 @@ builds to disable additional runtime testing and get the best performance. We
 disable these checks on a best-effort basis but the C++ standard does not provide
 a direct way to check for a release build.
 
-
-Warnign: Mixing debug and release simdjson code is unsafe: you either build all your code
-using simdjson in release mode or all of it in debug mode.
-
 Using the parsed JSON
 ---------------------
 
@@ -457,7 +386,7 @@ We also have a generic ephemeral type (`simdjson::ondemand::value`) which repres
 array or object, or scalar type (`double`, `uint64_t`, `int64_t`, `bool`, `null`, string) inside
 an array or an object. Both generic types (`simdjson::ondemand::document` and
 `simdjson::ondemand::value`) have a `type()` method returning a `json_type` value describing indicating the type (`json_type::array`, `json_type::object`, `json_type::number`, `json_type::string`,
-`json_type::boolean`, `json_type::null`, and `json_type::unknown` for unrecognized types). The `type()` method does not consume nor validate the value: e.g., you must still call `is_null()` to check that the value is a `null` even if `json_type::null` is returned. Starting with simdjson 4.0, we return `json_type::unknown` for bad tokens (such as the `NaN` token in `{"key":NaN}` when using the default strict parsing behavior). A `json_type::unknown` type value indicates an error in the JSON document but you might still be able to proceed, see [General direct access to the raw JSON string](#general-direct-access-to-the-raw-json-string). A generic value (`simdjson::ondemand::value`)
+`json_type::boolean`, `json_type::null`, and `json_type::unknown` for unrecognized types). The `type()` method does not consume nor validate the value: e.g., you must still call `is_null()` to check that the value is a `null` even if `json_type::null` is returned. Starting with simdjson 4.0, we return `json_type::unknown` for bad tokens such as the `NaN` token in `{"key":NaN}`. A `json_type::unknown` type value indicates an error in the JSON document but you might still be able to proceed, see [General direct access to the raw JSON string](#general-direct-access-to-the-raw-json-string). A generic value (`simdjson::ondemand::value`)
 is only valid temporarily, as soon as you access other values, other keys in objects, etc.
 it becomes invalid: you should therefore consume the value immediately by converting it to a
 scalar type, an array or an object.
@@ -488,7 +417,7 @@ support for users who avoid exceptions. See [the simdjson error handling documen
 * **Extracting Values:** You can cast a JSON element to a native type:
   `double(element)`. This works for `std::string_view`, double, uint64_t, int64_t, bool,
   ondemand::object and ondemand::array. We also have explicit methods such as `get_string()`, `get_double()`,
-  `get_uint64()`, `get_int64()`, `get_uint32()`, `get_int32()`, `get_bool()`, `get_object()` and `get_array()`. After a cast or an explicit method,
+  `get_uint64()`, `get_int64()`, `get_bool()`, `get_object()` and `get_array()`. After a cast or an explicit method,
   the number, string or boolean will be parsed, or the initial `{` or `[` will be verified for `ondemand::object` and `ondemand::array`. An exception may be thrown if
   the cast is not possible: the error code is `simdjson::INCORRECT_TYPE` (see [Error handling](#error-handling)). Importantly, when getting an ondemand::object or ondemand::array instance, its content is
   not validated: you are only guaranteed that the corresponding initial character (`{` or `[`) is present. Thus,
@@ -498,8 +427,8 @@ support for users who avoid exceptions. See [the simdjson error handling documen
   pass `true` (`get_string(true)`) as a parameter to get replacement characters where errors
   occur. If you somehow need to access non-UTF-8 strings in a lossless manner
   (e.g., if you strings contain unpaired surrogates), you may use the `get_wobbly_string()` function to get a string in the [WTF-8 format](https://simonsapin.github.io/wtf-8).
-  When calling `get_uint64()`, `get_int64()`, `get_uint32()` or `get_int32()`, if the number does not fit in the
+  When calling `get_uint64()` and `get_int64()`, if the number does not fit in a corresponding
-  corresponding integer type, it is also considered an error (`NUMBER_OUT_OF_RANGE`). When parsing numbers or other scalar values, the library checks
+  64-bit integer type, it is also considered an error. When parsing numbers or other scalar values, the library checks
   that the value is followed by an expected character, thus you *may* get a number parsing error when accessing the digits
   as an integer in the following strings: `{"number":12332a`, `{"number":12332\0`, `{"number":12332` (the digits appear at the end). We always abide by the [RFC 8259](https://www.tbray.org/ongoing/When/201x/2017/12/14/rfc8259.html) JSON specification so that, for example, numbers prefixed by the `+` sign are in error.
 
@@ -1352,6 +1281,10 @@ You can also use the custom `Car` type as part of a template such as `std::vecto
   simdjson::ondemand::parser parser;
   simdjson::ondemand::document doc = parser.iterate(json);
   std::vector<Car> cars(doc);
+  // visual studio users need an explicit call:
+  //   std::vector<Car> cars = doc.get<std::vector<Car>>();
+  // because the compiler does not know whether to convert
+  // doc to an unsigned int or to a vector.
   for(Car& c : cars) {
     std::cout << c.year << std::endl;
   }
@@ -1445,8 +1378,6 @@ With this code, deserializing an `std::list<Car>` instance would capture only th
 that are not made by Toyota.
 
 
-**Performance tip**: You will get better performance if you order the attributes (make, model)
-in the order they appear in the JSON document.
 
 
 ### 3. Using static reflection (C++26)
@@ -1523,10 +1454,6 @@ void f() {
 }
 ```
 
-
-**Performance tip**: You will get better performance if you order the attributes (make, model)
-in the order they appear in the JSON document.
-
 #### Special cases
 
 However, there are instances where the construction cannot
@@ -1593,51 +1520,6 @@ You can also automatically serialize the `Car` instance to a JSON string, see
 our [Builder documentation](builder.md).
 
 
-#### Renaming and skipping fields with annotations
-
-**This is experimental: the syntax may change slightly in the future.**
-
-C++26 annotations provide a convenient way to customize (de)serialization
-without writing `tag_invoke` functions. You can rename the JSON key that
-corresponds to a C++ data member, or skip a member entirely.
-
-The syntax is:
-
-```cpp
-// rename cppFieldName (in C++) to json_key_name (in JSON)
-[[= simdjson::rename<"json_key_name">]] std::string cppFieldName;
-// do not serialize or deserialize this field
-[[= simdjson::skip]] int internalState;
-```
-
-Full examples:
-
-```cpp
-struct RenamedFields {
-  [[= simdjson::rename<"first_name">]] std::string firstName = "";
-  [[= simdjson::rename<"last_name">]]  std::string lastName = "";
-  int age = 0;
-};
-
-struct SkippedField {
-  std::string name = "";
-  [[= simdjson::skip]] int internalCache = 0;
-};
-
-struct MixedAnnotations {
-  [[= simdjson::rename<"user_name">]] std::string userName = "";
-  [[= simdjson::skip]] int sessionToken = 0;
-  int age = 0;
-};
-```
-
-- Serialization via `simdjson::to_json(r)` or `builder << r` will use the renamed
-  keys and omit skipped fields.
-- Deserialization via `doc.get<RenamedFields>()` will map the JSON keys back
-  to the C++ fields. Skipped fields are never written during deserialization
-  (they keep their default-initialized value), and keys matching skipped fields
-  in the JSON input are ignored.
-
 
 ### The simdjson::from shortcut (experimental, C++20)
 
@@ -1649,10 +1531,6 @@ type without a document instance like so:
 Car car = simdjson::from(json);
 ```
 
-The string must be a `simdjson::padded_string_view`, which can be created from an std::string
-instance with `simdjson::pad()` function, from a `simdjson::padded_string` instance, or string literal using the `_padded`  user-defined literal.
-
-
 You can also use the `simdjson::from` syntax without exceptions, like so:
 ```cpp
 Car car;
@@ -1893,15 +1771,15 @@ int64_t x = obj.at_path("$.c.foo.a[1]"); // 20
 x = obj.at_path("$.d.foo2.a.2"); // 30
 ```
 
-## Using `for_each_at_path_with_wildcard` for JSONPath Queries (On-Demand)
+## Using `at_path_with_wildcard` for JSONPath Queries (On-Demand)
 
-The `for_each_at_path_with_wildcard` function in simdjson extends the JSONPath querying capabilities by supporting wildcard expressions (`*`) in JSON paths. It calls a user-provided callback for each matching element, avoiding the need to materialize all results into a vector. For example, you can use `$.address.*` to fetch all fields within the `address` object or `$.phoneNumbers[*].numbers[*]` to retrieve all phone numbers across multiple objects in an array.
+The `at_path_with_wildcard` function in simdjson extends the JSONPath querying capabilities by supporting wildcard expressions (`*`) in JSON paths. This allows users to retrieve multiple elements from a JSON document in a single query. For example, you can use `$.address.*` to fetch all fields within the `address` object or `$.phoneNumbers[*].numbers[*]` to retrieve all phone numbers across multiple objects in an array.
 
-The `*` wildcard matches all elements at a specific level. For instance, `$.address.*` retrieves all key-value pairs in the `address` object, while `$.*.streetAddress` fetches all `streetAddress` fields across objects at the root level. You can combine wildcards with array indexing. For example, `$.phoneNumbers[*].numbers[1]` retrieves the second number from each `numbers` array in the `phoneNumbers` array. If no elements match the wildcard query, the callback is simply never called. For instance, querying `$.empty_object.*` or `$.empty_array.*` will yield no callbacks.
+The `*` wildcard matches all elements at a specific level. For instance, `$.address.*` retrieves all key-value pairs in the `address` object, while `$.*.streetAddress` fetches all `streetAddress` fields across objects at the root level. You can combine wildcards with array indexing. For example, `$.phoneNumbers[*].numbers[1]` retrieves the second number from each `numbers` array in the `phoneNumbers` array. If no elements match the wildcard query, the function returns an empty result. For instance, querying `$.empty_object.*` or `$.empty_array.*` will yield an empty set.
 
 ### Example Usage
 
-Here is an example demonstrating the use of `for_each_at_path_with_wildcard`:
+Here is an example demonstrating the use of `at_path_with_wildcard`:
 
 ```cpp
 simdjson::padded_string json_string = R"(
@@ -1930,86 +1808,31 @@ ondemand::parser parser;
 ondemand::document doc = parser.iterate(json_string);
 
 // Fetch all fields in the address object
-auto error = doc.for_each_at_path_with_wildcard("$.address.*",
+std::vector<ondemand::value> values;
-    [](ondemand::value value) {
+auto error = doc.at_path_with_wildcard("$.address.*").get(values);
-      std::string_view field;
+if (!error) {
-      if (value.get(field) == SUCCESS) {
+  for (auto value : values) {
-        std::cout << field << std::endl;
+    std::string_view field;
-      }
+    if (value.get(field) == SUCCESS) {
-    });
+      std::cout << field << std::endl;
+    }
+  }
+}
 
 // Fetch all phone numbers
-doc.for_each_at_path_with_wildcard("$.phoneNumbers[*].numbers[*]",
+error = doc.at_path_with_wildcard("$.phoneNumbers[*].numbers[*]").get(values);
-    [](ondemand::value value) {
+if (!error) {
-      std::string_view number;
+  for (auto value : values) {
-      if (value.get(number) == SUCCESS) {
+    std::string_view number;
-        std::cout << number << std::endl;
+    if (value.get(number) == SUCCESS) {
-      }
+      std::cout << number << std::endl;
-    });
+    }
+  }
+}
 ```
 
 This function is particularly useful for extracting data from complex JSON structures with nested arrays and objects. By leveraging wildcards, you can simplify your queries and reduce the need for multiple iterations.
 
-## C++20 Ranges Support
-
-When compiling with C++20 (or later), you can use `std::ranges` with the On-Demand API
-via the `get_range()` helper. This enables use of range adaptors such as `std::views::transform`.
-
-```cpp
-#include "simdjson.h"
-#include <ranges>
-#include <string>
-#include <vector>
-
-auto json = R"([
-  { "name": "Alice", "age": 30 },
-  { "name": "Bob",   "age": 25 },
-  { "name": "Carol", "age": 35 }
-])"_padded;
-
-ondemand::parser parser;
-auto doc = parser.iterate(json);
-auto arr = doc.get_array();
-
-// Use std::views::transform to extract names
-auto names = ondemand::get_range(arr)
-  | std::views::transform([](auto elem) -> std::string {
-      return std::string(std::string_view(elem["name"]));
-    });
-
-for (auto name : names) {
-  std::cout << name << std::endl;  // Alice, Bob, Carol
-}
-```
-
-The `get_range()` and `get_key_value_range()` functions wrap an `ondemand::array`
-or `ondemand::object` in a `std::ranges::view` that satisfies `std::ranges::input_range`.
-They work with both exception and non-exception code:
-
-```cpp
-// With exceptions:
-auto range = ondemand::get_range(doc.get_array());
-
-// Without exceptions:
-ondemand::array arr;
-if (doc.get_array().get(arr) == SUCCESS) {
-  auto range = ondemand::get_range(arr);
-  for (auto elem : range) { /* ... */ }
-}
-```
-
-Object iteration uses `get_key_value_range()` and yields `simdjson_result<ondemand::field>` elements:
-
-```cpp
-auto obj = doc.get_object();
-for (auto field_result : ondemand::get_key_value_range(obj)) {
-  std::cout << field_result.key() << std::endl;
-}
-```
-
-The range wrappers are zero-cost: they forward directly to the underlying
-On-Demand iterators with no value buffering or extra per-element overhead.
-
 ## Compile-Time JSONPath and JSON Pointer (C++26 Reflection)
 
 The simdjson library provides **compile-time validated** JSONPath and JSON Pointer accessors when using C++26 Static Reflection. These accessors validate paths against struct definitions at compile time and generate optimized code with zero runtime overhead. In some cases, we find that it is much faster. Furthermore, it is safer in the sense that the expression
@@ -2694,7 +2517,7 @@ Market: btce    Price: 432.89   Volume: 8561.06
 */
 ```
 
-Finally, here is an example dealing with errors where the user wants to convert the string `"Infinity"`(`"change"` key) to a float with infinity value when using the default strict parsing behavior:
+Finally, here is an example dealing with errors where the user wants to convert the string `"Infinity"`(`"change"` key) to a float with infinity value.
 
 ```cpp
 ondemand::parser parser;
@@ -2709,7 +2532,7 @@ if (error) {
   error = value.get_string().get(view);
   if (error) { /* Handle error */ }
   else if (view == "Infinity") {
-    d = std::numeric_limits<double>::infinity();
+    d = std::numeric_limits::infinity();
   }
   else { /* Handle wrong value */ }
 }
@@ -2717,15 +2540,6 @@ if (error) {
 It is also important to note that when dealing an invalid number inside a string, simdjson will report a `NUMBER_ERROR` error if the string begins with a number whereas simdjson
 will report an `INCORRECT_TYPE` error otherwise.
 
-When `SIMDJSON_ENABLE_NAN_INF` is enabled, simdjson can parse `"Infinity"`, `"-Infinity"`, and `"NaN"` from a string using `get_double_in_string` without needing extra error handling:
-
-```cpp
-ondemand::parser parser;
-auto doc = parser.iterate(json);
-// Get "change"/"Infinity" key/value pair as a double.
-double d = doc["ticker"]["change"].get_double_in_string();
-```
-
 The `*_in_string` methods can also be called on a single document instance:
 e.g., when your document consist solely of a quoted number.
 
@@ -2865,53 +2679,6 @@ This code prints the following:
 '99999999999999999999999 '
 ```
 
-
-Infinity and NaN support
-------------------------------
-
-The JSON specification does not support `Infinity` and `NaN` literals. However, some engineers use literal `Infinity` and `NaN` tokens when serializing floating-point values to JSON.
-
-The simdjson library achieves maximum JSON parsing performance by adhering to a strict interpretation of the JSON specification. Therefore strict parsing is enabled by default - `Infinity` and `NaN` literals are not parsed as valid JSON.
-
-Users can opt-in to parsing `Infinity`, `-Infinity`, and `NaN` as `double` values by setting the `SIMDJSON_ENABLE_NAN_INF` flag to `ON` when building simdjson: `cmake -B build -D SIMDJSON_ENABLE_NAN_INF=ON` and setting `SIMDJSON_ENABLE_NAN_INF` to 1 before including `"simdjson.h"`. When enabled, `Infinity`, `-Infinity`, `Inf`, `-Inf`, and `NaN` literals are case-insensitively matched and parsed as `double`:
-
-```cpp
-// The SIMDJSON_ENABLE_NAN_INF flag also needs to be set before including simdjson.h
-#define SIMDJSON_ENABLE_NAN_INF 1
-#include "simdjson.h"
-using namespace simdjson;
-
-// ...
-
-ondemand::parser parser;
-auto inf_nan_literals = "[Infinity, -Infinity, NaN, inf, -inf, nan]"_padded;
-ondemand::document doc = parser.iterate(inf_nan_literals);
-
-// Parse and iterate through the array of literal inf/nan values.
-for (ondemand::value val: doc.get_array()) {
-  ondemand::number num = val.get_number();
-  ondemand::number_type t = num.get_number_type();
-
-  if (t == ondemand::number_type::floating_point_number) {
-    std::cout << "Parsed floating-point number: " << num.get_double() << std::endl;
-  } else {
-    std::cout << "Failed to parse." << std::endl;
-  }
-}
-```
-
-produces the following output:
-
-```
-Parsed floating-point number: inf
-Parsed floating-point number: -inf
-Parsed floating-point number: nan
-Parsed floating-point number: inf
-Parsed floating-point number: -inf
-Parsed floating-point number: nan
-```
-
-
 Raw strings from keys
 -----------
 
@@ -3010,7 +2777,7 @@ std::string_view noquote(std::string_view v) { return {v.data()+1, v.find_last_o
 
 
 The `raw_json_token()` method can enable you to provide fallbacks when parsing fails.
-Consider the following example under the default strict parsing behavior (`NaN` parsing is disabled):
+Consider the following example.
 
 ```cpp
     padded_string json = "{\"key\": NaN}"_padded;
@@ -3032,9 +2799,6 @@ Consider the following example under the default strict parsing behavior (`NaN`
 The NaN is not supported in JSON. However, in the On-Demand API, you can check
 the string corresponding to the JSON token and determine how to handle it.
 
-In this particular case, `SIMDJSON_ENABLE_NAN_INF` can be enabled to parse `Infinity` and `NaN` tokens.
-However other tokens will still need to be handled via the `raw_json_token()` method.
-
 ### Raw JSON string for objects and arrays
 
 If your value is an array or an object, `raw_json_token()` returns effectively a single
@@ -3058,10 +2822,8 @@ simdjson::ondemand::array arr = doc.get_array();
 string_view token = arr.raw_json(); // gives you `[1,2,3]`
 ```
 
-Because `raw_json()` consumes the object or the array, if you want both the raw
+Because `raw_json()` consumes to object or the array, if you want to both have
-substring and later field access on the same instance, call `reset()` on that
+access to the raw string, and also use the array or object, you should call `reset()`.
-object or array (as below). To re-parse the whole document from the start,
-use `document::rewind()` instead (see [Rewinding](#rewinding)).
 
 ```cpp
 simdjson::ondemand::parser parser;
@@ -3069,7 +2831,7 @@ simdjson::padded_string docdata =  R"({"value":123})"_padded;
 simdjson::ondemand::document doc = parser.iterate(docdata);
 simdjson::ondemand::object obj = doc.get_object();
 string_view token = obj.raw_json(); // gives you `{"value":123}`
-obj.reset(); // re-open the same object for further iteration
+obj.reset(); // revise the object
 uint64_t x = obj["value"]; // gives me 123
 ```
 

doc/builder.md

@@ -12,7 +12,6 @@ speed and high convenience.
   * [Overview: string_builder](#overview--string-builder)
   * [Example: string_builder](#example--string-builder)
   * [C++26 static reflection](#c--26-static-reflection)
-    + [Renaming and skipping fields with annotations](#renaming-and-skipping-fields-with-annotations)
     + [Without `string_buffer` instance](#without--string-buffer--instance)
     + [Without `string_buffer` instance but with explicit error handling](#without--string-buffer--instance-but-with-explicit-error-handling)
     + [Pretty formatted (fractured JSON)](#pretty-formatted-fractured-json)
@@ -261,48 +260,6 @@ automatically. In most cases, it should work automatically:
 ```
 
 
-#### Renaming and skipping fields with annotations
-
-
-**This is experimental: the syntax may change slightly in the future.**
-
-When using C++26 static reflection for automatic serialization (and deserialization),
-you can annotate your struct members to rename the corresponding JSON keys or to
-exclude fields from the JSON representation.
-
-
-The syntax is:
-
-```cpp
-// rename cppFieldName (in C++) to json_key_name (in JSON)
-[[= simdjson::rename<"json_key_name">]] std::string cppFieldName;
-// do not serialize or deserialize this field
-[[= simdjson::skip]] int internalState;
-```
-
-For example:
-
-```cpp
-struct Person {
-    [[= simdjson::rename<"first_name">]] std::string firstName = "";
-    [[= simdjson::rename<"last_name">]]  std::string lastName = "";
-    [[= simdjson::skip]] int internalCache = 0;
-    int age = 0;
-};
-```
-
-Serialization then produces:
-
-```cpp
-Person p{"Alice", "Smith", 999, 30};
-std::string json = simdjson::to_json(p);
-// json == R"({"first_name":"Alice","last_name":"Smith","age":30})"
-// Note: internalCache is omitted entirely.
-```
-
-The `skip` annotation also affects deserialization: the field keeps its default value
-and any corresponding key in the input JSON is ignored.
-
 ### Without `string_buffer` instance
 
 In some instances, you might want to create a string directly from your own data type.

doc/compile_time.md

@@ -32,21 +32,6 @@ your code with the `SIMDJSON_STATIC_REFLECTION` macro set:
 The `simdjson::compile_time::parse_json` function parses a JSON document at **compile time** and returns a `constexpr` structure reflecting its content. We support the full range of JSON values, which are mapped to C++ types as in
 the following table.
 
-For convenience, you can also use the `""_json` user-defined literal operator, which is available in the `simdjson::literals` namespace:
-
-```cpp
-using namespace simdjson::literals;
-
-constexpr auto cfg = R"(
-{
-    "port": 8080,
-    "host": "localhost"
-}
-)"_json;
-```
-
-Alternatively, you can use the qualified name `simdjson::literals::operator""_json`.
-
 
 | JSON type      | C++ type                         |
 |----------------|----------------------------------|
@@ -76,8 +61,6 @@ You can do so, at compile-time, as follows:
 
 
 ```cpp
-using namespace simdjson::literals;
-
 constexpr auto cfg = R"(
 
 {
@@ -96,8 +79,6 @@ constexpr auto cfg = R"(
 You can nest objects and arrays:
 
 ```cpp
-using namespace simdjson::literals;
-
 constexpr auto data = R"(
 
 {
@@ -117,8 +98,6 @@ constexpr auto data = R"(
 Top-level arrays are allowed:
 
 ```cpp
-using namespace simdjson::literals;
-
 constexpr auto arr = R"(
 
 [1, 2, 3]
@@ -137,8 +116,6 @@ want to check that it conforms to your expectation. You can do so with concepts.
 Let us consider this example:
 
 ```cpp
-    using namespace simdjson::literals;
-
     constexpr auto config = R"(
 
     [

doc/dom.md

@@ -125,42 +125,6 @@ Further, they may use the AreFileApisANSI function to determine whether
 the filename is interpreted using the ANSI or the system default OEM
 codepage, and they may call SetFileApisToOEM accordingly.
 
-
-**Advanced feature:**
-You can use `simdjson::padded_memory_map` to create a `simdjson::padded_string_view`
-from a file on disk without copying the file contents into your own buffer.
-On POSIX systems (Linux, macOS, BSD, ...) it uses `mmap` for true zero-copy
-access. On Windows it is available as an **opt-in** feature and requires:
-
-1. Building simdjson with `-DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=ON`, or
-   defining `SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=1` and raising
-   `NTDDI_VERSION` to at least `NTDDI_WIN10_RS4` (Windows 10, version 1803)
-   and linking `onecore.lib` manually if you are consuming simdjson as a
-   pre-built library.
-2. `#include <windows.h>` before `#include "simdjson.h"` in every
-   translation unit where you want to use `padded_memory_map`.
-
-When enabled on Windows, the implementation uses `CreateFileMapping2` and
-`MapViewOfFile3` for true zero-copy mapping whenever the file does not end
-within `SIMDJSON_PADDING` bytes of a page boundary; otherwise it falls back
-to reading the file into a padded heap buffer. If those requirements are
-not met, the class is not declared and the code below will fail to compile.
-
-```cpp
-#ifdef _WIN32
-#include <windows.h> // Must come BEFORE <simdjson.h> on Windows
-#endif
-#include "simdjson.h"
-// ...
-simdjson::padded_memory_map map(TWITTER_JSON);
-if (!map.is_valid()) { /* handle error */ }
-simdjson::padded_string_view view = map.view(); // view is usable while padded_memory_map is in scope
-ondemand::document doc = parser.iterate(view); // parse the JSON
-```
-
-Using memory-file mapping requires some care. The file should not be modified while you are
-accessing it.
-
 Using the Parsed JSON
 ---------------------
 
@@ -188,23 +152,6 @@ Once you have an element, you can navigate it with idiomatic C++ iterators, oper
   `SIMDJSON_MINUS_ZERO_AS_FLOAT` to `1` when building simdjson, you can get that `-0` is mapped to `-0.0`
   as in JavaScript. You can get the desired effect by building simdjson with cmake setting the
   `SIMDJSON_MINUS_ZERO_AS_FLOAT` to on: `cmake -B build -D SIMDJSON_MINUS_ZERO_AS_FLOAT=ON`.
-* **Big Integer Support (opt-in):** By default, integers that exceed the 64-bit range cause parsing to fail with `BIGINT_ERROR`. You can opt in to big integer support so that these numbers are stored as raw digit strings on the tape instead:
-  ```cpp
-  simdjson::dom::parser parser;
-  parser.number_as_string(true); // opt-in, default false
-  simdjson::dom::element doc;
-  auto error = parser.parse("[1, 123456789012345678901]"_padded).get(doc);
-  if (error) { std::cerr << error << std::endl; return EXIT_FAILURE; }
-  for (simdjson::dom::element elem : doc) {
-    if (elem.is_bigint()) {
-      std::string_view digits;
-      error = elem.get_bigint().get(digits);
-      if (error) { std::cerr << error << std::endl; return EXIT_FAILURE; }
-      std::cout << "big integer: " << digits << std::endl;
-    }
-  }
-  ```
-  When enabled, big integers have type `element_type::BIGINT`. Calling `get_int64()`, `get_uint64()`, or `get_double()` on a big integer returns `INCORRECT_TYPE`. Normal numbers (int64, uint64, double) are unaffected.
 * **Field Access:** To get the value of the "foo" field in an object, use `object["foo"]`.
 * **Array Iteration:** To iterate through an array, use `for (auto value : array) { ... }`. If you
   know the type of the value, you can cast it right there, too! `for (double value : array) { ... }`
@@ -217,7 +164,7 @@ Once you have an element, you can navigate it with idiomatic C++ iterators, oper
 * **Array and Object size** Given an array or an object, you can get its size (number of elements or keys)
   with the `size()` method.
 * **Checking an Element Type:** You can check an element's type with `element.type()`. It
-  returns an `element_type` with values such as `simdjson::dom::element_type::ARRAY`, `simdjson::dom::element_type::OBJECT`, `simdjson::dom::element_type::INT64`,  `simdjson::dom::element_type::UINT64`,`simdjson::dom::element_type::DOUBLE`, `simdjson::dom::element_type::STRING`, `simdjson::dom::element_type::BOOL`, `simdjson::dom::element_type::NULL_VALUE` or, `simdjson::dom::element_type::BIGINT` (when big integer support is enabled).
+  returns an `element_type` with values such as `simdjson::dom::element_type::ARRAY`, `simdjson::dom::element_type::OBJECT`, `simdjson::dom::element_type::INT64`,  `simdjson::dom::element_type::UINT64`,`simdjson::dom::element_type::DOUBLE`, `simdjson::dom::element_type::STRING`, `simdjson::dom::element_type::BOOL` or, `simdjson::dom::element_type::NULL_VALUE`.
 * **Output to streams and strings:** Given a document or an element (or node) out of a JSON document, you can output a minified string version using the C++ stream idiom (`out << element`). You can also request the construction of a minified string version (`simdjson::minify(element)`) or a prettified string version (`simdjson::prettify(element)`). Numbers are serialized as 64-bit floating-point numbers (`double`).
 
 ### Examples
@@ -790,9 +737,6 @@ void basics_treewalk_1() {
 }
 ```
 
-Notice that we do not include `dom::element_type::BIGINT` in this example
-as `dom::element_type::BIGINT` type is only generated if the parser was
-set to support big integers (`parser.number_as_string(true)`).
 
 
 Reusing the parser for maximum efficiency
@@ -905,19 +849,6 @@ simdjson::dom::element element = parser.parse(padded_json_copy.get(), json_len,
 
 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.
 
-If you are compiling your project with C++17 or better, you can use a `simdjson::padded_input`:
-
-```cpp
-simdjson::dom::parser parser;
-std::string_view json = "[1,2,3]";
-simdjson::padded_input input(json); // Automatically pads if needed
-simdjson::dom::element element = parser.parse(input);
-```
-
-The actual padding only occurs if the JSON string ends near the boundary of a memory page, which is uncommon. Using a `simdjson::padded_input` is safe although sanitizers and tools like valgrind might report illegal reads (which are safe in our case because they remain in the mapped page). You should avoid `simdjson::padded_input` on systems without a page size of at least 4096: virtually all systems qualify except for some niche embedded systems running custom operating systems. Standard Linux, Windows, macOS, Android, iOS, etc., are all fine.  Note that, most times, an `simdjson::padded_input` instance will not copy the data and will only act
-as a view (it does not own the memory).
-
-
 Performance Tips
 ---------------------
 

doc/implementation-selection.md

@@ -33,9 +33,6 @@ compiles *all* the implementations into the executable. On Intel, it will includ
 (icelake, haswell, westmere and fallback), on 64-bit ARM it will include just one since running dispatching is  unnecessary, and on PPC
 it will include 2 (ppc64 and fallback).
 
-On Loongson processors, LASX runtime dispatching is only enabled on GCC 15+, not on LLVM or older versions of GCC.
-Thus unless you compile specifically for LASX or use GCC 15+, you will not benefit from LASX support.
-
 If you know more about where you're going to run and want to save the space, you can disable any of
 these implementations at compile time with `-DSIMDJSON_IMPLEMENTATION_X=0` (where X is ICELAKE, HASWELL,
 WESTMERE, ARM64, PPC64, LSX, LASX and FALLBACK).

doc/iterate_many.md

@@ -22,12 +22,10 @@ Contents
   - [Threads](#threads)
 - [Support](#support)
 - [API](#api)
-- [Streaming directly from a memory-mapped file](#streaming-directly-from-a-memory-mapped-file)
 - [Use cases](#use-cases)
 - [Tracking your position](#tracking-your-position)
 - [Incomplete streams](#incomplete-streams)
 - [C++20 features](#c20-features)
-- [C++26 features (static reflection)](#c26-features-static-reflection)
 
 Motivation
 -----------
@@ -134,7 +132,7 @@ E.g., `[1,2]{"32":1}` is recognized as two documents.
 Some official formats **(non-exhaustive list)**:
 - [Newline-Delimited JSON (NDJSON)](https://github.com/ndjson/ndjson-spec/)
 - [JSON lines (JSONL)](http://jsonlines.org/)
-- [Record separator-delimited JSON (RFC 7464)](https://tools.ietf.org/html/rfc7464)
+- [Record separator-delimited JSON (RFC 7464)](https://tools.ietf.org/html/rfc7464) <- Not supported by simdjson!
 - [More on Wikipedia...](https://en.wikipedia.org/wiki/JSON_streaming)
 
 API
@@ -156,86 +154,6 @@ for (auto doc : docs) {
 
 See [basics.md](basics.md#newline-delimited-json-ndjson-and-json-lines) for an overview of the API.
 
-
-Streaming directly from a memory-mapped file
---------------------------------------------
-
-When your input is a large NDJSON / JSON-lines file on disk, the most efficient
-way to feed `iterate_many` is to use `simdjson::padded_memory_map`. It returns
-a `padded_string_view` with the right amount of trailing padding, so you can
-hand it straight to `iterate_many` without ever copying the file contents into
-your own buffer.
-
-`padded_memory_map` is available on POSIX systems (Linux, macOS, BSD, ...) by
-default. On Windows it is an **opt-in** feature with the following
-requirements:
-
-1. Build simdjson with `-DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=ON`, or — if
-   you consume simdjson as a pre-built library — define
-   `SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=1`, raise `NTDDI_VERSION` to at
-   least `NTDDI_WIN10_RS4` (`0x0A000005`, Windows 10 version 1803), and
-   add `onecore.lib` to your link line yourself. The Windows
-   implementation uses the modern memory APIs `CreateFileMapping2` /
-   `MapViewOfFile3`, which are available starting with that version of
-   Windows and are exported by `onecore.lib`.
-2. `#include <windows.h>` before `#include "simdjson.h"` in every
-   translation unit where you want to use `padded_memory_map`. simdjson
-   deliberately does not pull in `<windows.h>` itself, so the class is
-   only declared when the Win32 types are already visible.
-
-If either requirement is not met on Windows, the `padded_memory_map` class is
-not declared at all and any code that references it fails to compile with an
-"unknown identifier" error. The availability of the class can be tested with
-the macro `SIMDJSON_HAS_PADDED_MEMORY_MAP`.
-
-On POSIX, `padded_memory_map` uses `mmap` to map the file directly into
-memory with zero copies. On Windows (when enabled), it uses
-`CreateFileMapping2` + `MapViewOfFile3` for true zero-copy mapping
-whenever the file does not end within `SIMDJSON_PADDING` bytes of a page
-boundary; for those rare cases, it transparently falls back to reading
-the file into a heap-allocated padded buffer so that the returned view
-always has `SIMDJSON_PADDING` accessible zero bytes after the file content.
-
-```cpp
-#ifdef _WIN32
-#include <windows.h> // Must come BEFORE <simdjson.h> on Windows
-#endif
-#include "simdjson.h"
-
-// ...
-
-simdjson::padded_memory_map map("huge_stream.ndjson");
-if (!map.is_valid()) { /* file missing, unreadable, too large, ... */ return; }
-
-simdjson::ondemand::parser parser;
-simdjson::ondemand::document_stream stream;
-auto error = parser.iterate_many(map.view()).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-
-for (auto doc : stream) {
-  // process each JSON document in the stream
-  std::cout << doc << std::endl;
-}
-```
-
-Important lifetime rule: the `padded_string_view` returned by `map.view()` is
-only valid while the `padded_memory_map` instance is alive, so keep `map`
-alive for as long as you are iterating the stream.
-
-The file must not be modified while the memory map is in use. If you need a
-fully independent copy of the data, use `simdjson::padded_string::load(...)`
-instead.
-
-If you prefer single-document parsing on a memory-mapped file, the same
-pattern applies to `parser.iterate(...)`:
-
-```cpp
-simdjson::padded_memory_map map(myfilename);
-if (!map.is_valid()) { /* handle error */ }
-simdjson::padded_string_view view = map.view(); // view is usable while padded_memory_map is in scope
-ondemand::document doc = parser.iterate(view); // parse the JSON
-```
-
 ## Use cases
 
 From [jsonlines.org](http://jsonlines.org/examples/):
@@ -346,131 +264,39 @@ Importantly, you should only call `truncated_bytes()` after iterating through al
 Comma-separated documents
 -----------
 
-To parse comma-separated documents like `{"a":1},{"b":2},{"c":3}`, use the `stream_format::comma_delimited` parameter:
+We also support comma-separated documents, but with some performance limitations. The `iterate_many` function  takes in an option to allow parsing of comma separated documents (which defaults on false). In this mode, the entire buffer is processed in one batch. Therefore, the total size of the document should not exceed the maximal capacity of the parser (4 GB). This mode also effectively disallow multithreading. It is therefore mostly suitable for not "very large" inputs. In this mode, the batch_size parameter
+is effectively ignored, as it is set to at least the document size.
+
+Example:
 
 ```cpp
-auto json = R"({"a":1},{"b":2},{"c":3})"_padded;
+    auto json = R"( 1, 2, 3, 4, "a", "b", "c", {"hello": "world"} , [1, 2, 3])"_padded;
-ondemand::parser parser;
+    ondemand::parser parser;
-ondemand::document_stream stream;
+    ondemand::document_stream doc_stream;
-auto error = parser.iterate_many(json, ondemand::DEFAULT_BATCH_SIZE,
+    // We pass '32' as the batch size, but it is a bogus parameter because, since
-                                 simdjson::stream_format::comma_delimited).get(stream);
+    // we pass 'true' to the allow_comma parameter, the batch size will be set to at least
-if (error) { std::cerr << error << std::endl; return; }
+    // the document size.
-for (auto doc : stream) {
+    auto error = parser.iterate_many(json, 32, true).get(doc_stream);
-    std::cout << doc << std::endl;
+    if (error) { std::cerr << error << std::endl; return; }
-}
+    for (auto doc : doc_stream) {
-// Prints: {"a":1}
+        std::cout << doc.type() << std::endl;
-//         {"b":2}
+    }
-//         {"c":3}
+ ```
+
+ This will print:
+
 ```
-
+number
-Whitespace around the commas is allowed:
+number
-```cpp
+number
-auto json = R"({"a":1} , {"b":2} , {"c":3})"_padded;  // Also works
+number
+string
+string
+string
+object
+array
 ```
 
-Nested commas inside objects and arrays are preserved:
-```cpp
-auto json = R"({"arr":[1,2,3]},{"obj":{"x":1,"y":2}})"_padded;
-// Correctly parses as 2 documents, not 6
-```
-
-Mixed document types are supported:
-```cpp
-auto json = R"(1, 2, 3, 4, "a", "b", "c", {"hello": "world"}, [1, 2, 3])"_padded;
-ondemand::parser parser;
-ondemand::document_stream doc_stream;
-auto error = parser.iterate_many(json, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::comma_delimited).get(doc_stream);
-if (error) { std::cerr << error << std::endl; return; }
-for (auto doc : doc_stream) {
-    std::cout << doc.type() << std::endl;
-}
-// Prints: number number number number string string string object array
-```
-
-Extra top-level separators are tolerated for compatibility with the legacy
-`allow_comma_separated` behavior. For example, leading commas, trailing commas,
-and repeated commas are treated as empty separators rather than documents.
-
-### Legacy `allow_comma_separated` parameter (deprecated)
-
-The `allow_comma_separated` boolean parameter is deprecated. When set to `true`, it now internally maps to `stream_format::comma_delimited`.
-
-The old single-batch limitation no longer applies - comma-delimited parsing now supports multi-batch processing and threading for optimal performance on large files.
-
-JSON Text Sequences (RFC 7464)
-------------------------------
-
-[RFC 7464](https://tools.ietf.org/html/rfc7464) defines a format for streaming JSON values using ASCII Record Separator (RS, 0x1E) as a delimiter. Each JSON text is preceded by RS and optionally followed by ASCII Line Feed (LF, 0x0A).
-
-Example input:
-```
-<RS>{"name":"doc1"}<LF>
-<RS>{"name":"doc2"}<LF>
-<RS>{"name":"doc3"}<LF>
-```
-
-To parse JSON text sequences, use the `stream_format::json_sequence` parameter:
-
-```cpp
-// Build input with RS (0x1E) and LF (0x0A) delimiters
-std::string input_str;
-input_str += '\x1e'; input_str += "{\"a\":1}"; input_str += '\x0a';
-input_str += '\x1e'; input_str += "{\"b\":2}"; input_str += '\x0a';
-input_str += '\x1e'; input_str += "{\"c\":3}"; input_str += '\x0a';
-simdjson::padded_string input(input_str);
-
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(input, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::json_sequence).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-for (auto doc : stream) {
-    std::cout << doc << std::endl;
-}
-```
-
-The `stream_format` enum has the following values:
-- `stream_format::whitespace_delimited` (default): Standard NDJSON/JSON Lines format
-- `stream_format::json_sequence`: RFC 7464 format with RS delimiters
-- `stream_format::comma_delimited`: Comma-separated JSON documents
-- `stream_format::comma_delimited_array`: A single JSON array whose elements are iterated as comma-delimited documents (see below)
-
-The trailing LF after each JSON text is optional but recommended by the RFC for robustness.
-
-JSON Array As A Document Stream
--------------------------------
-
-Sometimes an input is a single, well-formed JSON array — `[{"a":1},{"b":2},{"c":3}]` — but you want to iterate its elements one at a time without materializing the whole array. Use `stream_format::comma_delimited_array`:
-
-```cpp
-auto json = R"([{"a":1},{"b":2},{"c":3}])"_padded;
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(json, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::comma_delimited_array).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-for (auto doc : stream) {
-    std::cout << doc << std::endl;
-}
-// Prints: {"a":1}
-//         {"b":2}
-//         {"c":3}
-```
-
-The parser strips the outer `[` and `]` plus any surrounding JSON whitespace (space, tab, LF, CR) and then behaves exactly like `stream_format::comma_delimited` over the remaining bytes. All comma-delimited features are inherited: multi-batch processing, threading, mixed scalar types, and nested commas preserved inside inner objects and arrays.
-
-```cpp
-// All of these work:
-auto a = R"([1, "x", true, null, {"k":"v"}, [1,2]])"_padded;  // mixed scalars
-auto b = R"(  [ 1, 2, 3 ] )"_padded;                          // whitespace
-auto c = R"([])"_padded;                                      // empty array → 0 docs
-```
-
-If the input is not a well-formed outer array (missing `[`, missing `]`, or empty / all-whitespace), `iterate_many` returns `TAPE_ERROR`. Content **inside** the array is not validated up front — individual document parse errors surface when you iterate, just like `comma_delimited`.
-
-Positions reported via `current_index()` are relative to the **stripped** buffer (the bytes between `[` and `]`), not the original input, for consistency with the existing BOM-stripping behavior.
-
 
 C++20 features
 --------------------
@@ -578,161 +404,3 @@ Otherwise you may use this longer version for explicit handling of errors:
     cars.push_back(c);
   }
 ```
-
-**Performance tip**: You will get better performance if you order the attributes (make, model)
-in the order they appear in the JSON document.
-
-C++26 features (static reflection)
------------------------------------
-
-If you have a C++26 compatible compiler with [P2996](https://wg21.link/P2996)
-static reflection support, you can compile the simdjson library with the
-`SIMDJSON_STATIC_REFLECTION` macro set to `1`. When this is the case, simdjson
-can deserialize a stream of JSON documents directly into your own structures
-**without** writing any `tag_invoke` function. The library inspects the
-non-static public members of your type at compile time and produces the
-parsing code automatically.
-
-```cpp
-#define SIMDJSON_STATIC_REFLECTION 1
-#include "simdjson.h"
-```
-
-Consider the same `Car` structure used in the C++20 example, but **without**
-any `tag_invoke` glue:
-
-```cpp
-struct Car {
-  std::string make;
-  std::string model;
-  int year;
-  std::vector<double> tire_pressure;
-};
-```
-
-With C++26 static reflection enabled, you can iterate a stream of cars and
-push them into a `std::vector<Car>` directly:
-
-```cpp
-auto json = R"( { "make": "Toyota", "model": "Camry",  "year": 2018,
-                  "tire_pressure": [ 40.1, 39.9 ] }
-                { "make": "Kia",    "model": "Soul",   "year": 2012,
-                  "tire_pressure": [ 30.1, 31.0 ] }
-                { "make": "Toyota", "model": "Tercel", "year": 1999,
-                  "tire_pressure": [ 29.8, 30.0 ] } )"_padded;
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(json).get(stream);
-if (error) { /* handle error */ }
-std::vector<Car> cars;
-for (auto doc : stream) {
-  Car c;
-  if ((error = doc.get<Car>().get(c))) { /* handle error */ }
-  cars.push_back(c);
-}
-```
-
-This works for every `stream_format` value supported by `iterate_many`. The
-following examples each parse the same three cars, but laid out using a
-different streaming convention.
-
-### Whitespace-delimited (default, NDJSON / JSON Lines)
-
-```cpp
-auto json = R"( { "make": "Toyota", "model": "Camry",  "year": 2018,
-                  "tire_pressure": [ 40.1, 39.9 ] }
-                { "make": "Kia",    "model": "Soul",   "year": 2012,
-                  "tire_pressure": [ 30.1, 31.0 ] }
-                { "make": "Toyota", "model": "Tercel", "year": 1999,
-                  "tire_pressure": [ 29.8, 30.0 ] } )"_padded;
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(json, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::whitespace_delimited).get(stream);
-if (error) { /* handle error */ }
-std::vector<Car> cars;
-for (auto doc : stream) {
-  cars.push_back((Car)doc); // throws on error
-}
-```
-
-### Comma-delimited documents
-
-```cpp
-auto json = R"( { "make": "Toyota", "model": "Camry",  "year": 2018,
-                  "tire_pressure": [ 40.1, 39.9 ] },
-                { "make": "Kia",    "model": "Soul",   "year": 2012,
-                  "tire_pressure": [ 30.1, 31.0 ] },
-                { "make": "Toyota", "model": "Tercel", "year": 1999,
-                  "tire_pressure": [ 29.8, 30.0 ] } )"_padded;
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(json, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::comma_delimited).get(stream);
-if (error) { /* handle error */ }
-std::vector<Car> cars;
-for (auto doc : stream) {
-  Car c;
-  if ((error = doc.get<Car>().get(c))) { /* handle error */ }
-  cars.push_back(c);
-}
-```
-
-### A single JSON array as a stream of documents
-
-When the input is a single JSON array, you can stream its elements one at a
-time without materializing the entire array as a `std::vector` upfront:
-
-```cpp
-auto json = R"( [ { "make": "Toyota", "model": "Camry",  "year": 2018,
-                    "tire_pressure": [ 40.1, 39.9 ] },
-                  { "make": "Kia",    "model": "Soul",   "year": 2012,
-                    "tire_pressure": [ 30.1, 31.0 ] },
-                  { "make": "Toyota", "model": "Tercel", "year": 1999,
-                    "tire_pressure": [ 29.8, 30.0 ] } ] )"_padded;
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(json, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::comma_delimited_array).get(stream);
-if (error) { /* handle error */ }
-std::vector<Car> cars;
-for (auto doc : stream) {
-  Car c;
-  if ((error = doc.get<Car>().get(c))) { /* handle error */ }
-  cars.push_back(c);
-}
-```
-
-### JSON Text Sequences (RFC 7464)
-
-```cpp
-// Build input with RS (0x1E) and LF (0x0A) delimiters
-std::string input_str;
-auto append = [&](std::string_view doc) {
-  input_str += '\x1e'; input_str += doc; input_str += '\x0a';
-};
-append(R"({ "make": "Toyota", "model": "Camry",  "year": 2018, "tire_pressure": [ 40.1, 39.9 ] })");
-append(R"({ "make": "Kia",    "model": "Soul",   "year": 2012, "tire_pressure": [ 30.1, 31.0 ] })");
-append(R"({ "make": "Toyota", "model": "Tercel", "year": 1999, "tire_pressure": [ 29.8, 30.0 ] })");
-simdjson::padded_string input(input_str);
-
-ondemand::parser parser;
-ondemand::document_stream stream;
-auto error = parser.iterate_many(input, ondemand::DEFAULT_BATCH_SIZE,
-                                 simdjson::stream_format::json_sequence).get(stream);
-if (error) { /* handle error */ }
-std::vector<Car> cars;
-for (auto doc : stream) {
-  Car c;
-  if ((error = doc.get<Car>().get(c))) { /* handle error */ }
-  cars.push_back(c);
-}
-```
-
-In every case, the user-defined type (`Car` here) does not need a hand-written
-`tag_invoke` overload: the library generates the deserialization code from the
-type's public data members at compile time.
-
-
-**Performance tip**: You will get better performance if you order the attributes (make, model)
-in the order they appear in the JSON document.

doc/parse_many.md

@@ -18,7 +18,6 @@ Contents
 - [How it works](#how-it-works)
 - [Support](#support)
 - [API](#api)
-- [Streaming directly from a memory-mapped file](#streaming-directly-from-a-memory-mapped-file)
 - [Use cases](#use-cases)
 - [Tracking your position](#tracking-your-position)
 - [Incomplete streams](#incomplete-streams)
@@ -133,7 +132,7 @@ Whitespace Characters:
 Some official formats **(non-exhaustive list)**:
 - [Newline-Delimited JSON (NDJSON)](https://github.com/ndjson/ndjson-spec)
 - [JSON lines (JSONL)](http://jsonlines.org/)
-- [Record separator-delimited JSON (RFC 7464)](https://tools.ietf.org/html/rfc7464)
+- [Record separator-delimited JSON (RFC 7464)](https://tools.ietf.org/html/rfc7464) <- Not supported by simdjson!
 - [More on Wikipedia...](https://en.wikipedia.org/wiki/JSON_streaming)
 
 API
@@ -218,86 +217,6 @@ got full document at 29
 ```
 
 
-
-Streaming directly from a memory-mapped file
---------------------------------------------
-
-When your input is a large NDJSON / JSON-lines file on disk, the most
-efficient way to feed `parse_many` is to use `simdjson::padded_memory_map`.
-It returns a `padded_string_view` with the right amount of trailing padding,
-so you can pass it directly to `parse_many` without copying the file content
-into your own buffer first.
-
-`padded_memory_map` is available on POSIX systems (Linux, macOS, BSD, ...) by
-default. On Windows it is an **opt-in** feature with the following
-requirements:
-
-1. Build simdjson with `-DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=ON`, or — if
-   you consume simdjson as a pre-built library — define
-   `SIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=1`, raise `NTDDI_VERSION` to at
-   least `NTDDI_WIN10_RS4` (`0x0A000005`, Windows 10 version 1803), and
-   add `onecore.lib` to your link line yourself. The Windows
-   implementation uses the modern memory APIs `CreateFileMapping2` /
-   `MapViewOfFile3`, which are available starting with that version of
-   Windows and are exported by `onecore.lib`.
-2. `#include <windows.h>` before `#include "simdjson.h"` in every
-   translation unit where you want to use `padded_memory_map`. simdjson
-   deliberately does not pull in `<windows.h>` itself, so the class is
-   only declared when the Win32 types are already visible.
-
-If either requirement is not met on Windows, the `padded_memory_map` class is
-not declared at all and any code that references it fails to compile with an
-"unknown identifier" error. The availability of the class can be tested with
-the macro `SIMDJSON_HAS_PADDED_MEMORY_MAP`.
-
-On POSIX, `padded_memory_map` uses `mmap` to map the file directly into
-memory with zero copies. On Windows (when enabled), it uses
-`CreateFileMapping2` + `MapViewOfFile3` for true zero-copy mapping
-whenever the file does not end within `SIMDJSON_PADDING` bytes of a page
-boundary; for those rare cases, it transparently falls back to reading
-the file into a heap-allocated padded buffer so that the returned view
-always has `SIMDJSON_PADDING` accessible zero bytes after the file content.
-
-```cpp
-#ifdef _WIN32
-#include <windows.h> // Must come BEFORE <simdjson.h> on Windows
-#endif
-#include "simdjson.h"
-
-// ...
-
-simdjson::padded_memory_map map("huge_stream.ndjson");
-if (!map.is_valid()) { /* file missing, unreadable, too large, ... */ return; }
-
-simdjson::dom::parser parser;
-simdjson::dom::document_stream stream;
-auto error = parser.parse_many(map.view()).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-
-for (auto doc : stream) {
-  // process each JSON document in the stream
-  std::cout << doc << std::endl;
-}
-```
-
-Important lifetime rule: the `padded_string_view` returned by `map.view()` is
-only valid while the `padded_memory_map` instance is alive, so keep `map`
-alive for as long as you are iterating the stream.
-
-The file must not be modified while the memory map is in use. If you need a
-fully independent copy of the data, use `simdjson::padded_string::load(...)`
-instead.
-
-If you prefer single-document parsing on a memory-mapped file, the same
-pattern applies to `parser.parse(...)`:
-
-```cpp
-simdjson::padded_memory_map map(myfilename);
-if (!map.is_valid()) { /* handle error */ }
-simdjson::padded_string_view view = map.view(); // view is usable while padded_memory_map is in scope
-simdjson::dom::element doc = parser.parse(view); // parse the JSON
-```
-
 Incomplete streams
 -----------
 
@@ -320,115 +239,3 @@ 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.
-
-JSON Text Sequences (RFC 7464)
-------------------------------
-
-[RFC 7464](https://tools.ietf.org/html/rfc7464) defines a format for streaming JSON values using ASCII Record Separator (RS, 0x1E) as a delimiter. Each JSON text is preceded by RS and optionally followed by ASCII Line Feed (LF, 0x0A).
-
-Example input:
-```
-<RS>{"name":"doc1"}<LF>
-<RS>{"name":"doc2"}<LF>
-<RS>{"name":"doc3"}<LF>
-```
-
-To parse JSON text sequences, use the `stream_format::json_sequence` parameter:
-
-```cpp
-// Build input with RS (0x1E) and LF (0x0A) delimiters
-std::string input_str;
-input_str += '\x1e'; input_str += "{\"a\":1}"; input_str += '\x0a';
-input_str += '\x1e'; input_str += "{\"b\":2}"; input_str += '\x0a';
-input_str += '\x1e'; input_str += "{\"c\":3}"; input_str += '\x0a';
-simdjson::padded_string input(input_str);
-
-simdjson::dom::parser parser;
-simdjson::dom::document_stream stream;
-auto error = parser.parse_many(input, simdjson::dom::DEFAULT_BATCH_SIZE,
-                               simdjson::stream_format::json_sequence).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-for (auto doc : stream) {
-    std::cout << doc << std::endl;
-}
-```
-
-The `stream_format` enum has the following values:
-- `stream_format::whitespace_delimited` (default): Standard NDJSON/JSON Lines format
-- `stream_format::json_sequence`: RFC 7464 format with RS delimiters
-- `stream_format::comma_delimited`: Comma-separated JSON documents
-- `stream_format::comma_delimited_array`: A single JSON array whose elements are iterated as comma-delimited documents (see below)
-
-The trailing LF after each JSON text is optional but recommended by the RFC for robustness.
-
-Comma-Separated Documents
--------------------------
-
-Some systems produce JSON documents separated by commas, like `{"a":1},{"b":2},{"c":3}`. This is common when extracting elements from a JSON array or when APIs return comma-separated results.
-
-To parse comma-separated documents, use the `stream_format::comma_delimited` parameter:
-
-```cpp
-auto json = R"({"a":1},{"b":2},{"c":3})"_padded;
-simdjson::dom::parser parser;
-simdjson::dom::document_stream stream;
-auto error = parser.parse_many(json, simdjson::dom::DEFAULT_BATCH_SIZE,
-                               simdjson::stream_format::comma_delimited).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-for (auto doc : stream) {
-    std::cout << doc << std::endl;
-}
-// Prints: {"a":1}
-//         {"b":2}
-//         {"c":3}
-```
-
-Whitespace around the commas is allowed:
-```cpp
-auto json = R"({"a":1} , {"b":2} , {"c":3})"_padded;  // Also works
-```
-
-Nested commas inside objects and arrays are preserved:
-```cpp
-auto json = R"({"arr":[1,2,3]},{"obj":{"x":1,"y":2}})"_padded;
-// Correctly parses as 2 documents, not 6
-```
-
-Extra top-level separators are tolerated for compatibility with the legacy
-On-Demand comma-separated mode. Leading commas, trailing commas, and repeated
-commas are treated as empty separators rather than documents.
-
-Unlike the legacy `allow_comma_separated` parameter, `stream_format::comma_delimited` supports multi-batch processing and threading for optimal performance on large files.
-
-JSON Array As A Document Stream
--------------------------------
-
-Sometimes an input is a single, well-formed JSON array — `[{"a":1},{"b":2},{"c":3}]` — but you want to iterate its elements one at a time without materializing the whole array. Use `stream_format::comma_delimited_array`:
-
-```cpp
-auto json = R"([{"a":1},{"b":2},{"c":3}])"_padded;
-simdjson::dom::parser parser;
-simdjson::dom::document_stream stream;
-auto error = parser.parse_many(json, simdjson::dom::DEFAULT_BATCH_SIZE,
-                               simdjson::stream_format::comma_delimited_array).get(stream);
-if (error) { std::cerr << error << std::endl; return; }
-for (auto doc : stream) {
-    std::cout << doc << std::endl;
-}
-// Prints: {"a":1}
-//         {"b":2}
-//         {"c":3}
-```
-
-The parser strips the outer `[` and `]` plus any surrounding JSON whitespace (space, tab, LF, CR) and then behaves exactly like `stream_format::comma_delimited` over the remaining bytes. All comma-delimited features are inherited: multi-batch processing, threading, mixed scalar types, and nested commas preserved inside inner objects and arrays.
-
-```cpp
-// All of these work:
-auto a = R"([1, "x", true, null, {"k":"v"}, [1,2]])"_padded;  // mixed scalars
-auto b = R"(  [ 1, 2, 3 ] )"_padded;                          // whitespace
-auto c = R"([])"_padded;                                      // empty array → 0 docs
-```
-
-If the input is not a well-formed outer array (missing `[`, missing `]`, or empty / all-whitespace), `parse_many` returns `TAPE_ERROR`. Content **inside** the array is not validated up front — individual document parse errors surface when you iterate, just like `comma_delimited`.
-
-Positions reported via `current_index()` are relative to the **stripped** buffer (the bytes between `[` and `]`), not the original input, for consistency with the existing BOM-stripping behavior.

doc/performance.md

@@ -204,31 +204,9 @@ but can be significantly larger. E.g., Apple systems favour pages spanning 16 ki
 
 In effect, it means that you can almost always read a few bytes beyond your current buffer---without
 allocating extra memory. However, tools such as valgrind or memory sanitizers will flag such behavior as unsafe.
-You can still make sure of this capability in your code if you are an expert
+Nevertheless, you can still make sure of this capability in your code if you are an expert
-programmer and you are willing to silence sanitizer warnings.
+programmer and you are willing to silence sanitizer warnings. The following code provides
-
+a portable example.
-If you are building simdjson with C++17 or better, you can use `simdjson::padded_input`.
-The `padded_input` struct automatically manages padding for you. It can be constructed from a `std::string_view`, a C-style string with length, or a `std::string`. For `std::string`, it takes into account the reserved capacity when determining if sufficient padding exists. If the input already has sufficient padding (up to the end of the memory page), it creates a view without copying. Otherwise, it copies the data into a `padded_string` with proper padding.
-
-Example usage:
-
-```cpp
-std::string_view json = get_json_data();
-simdjson::padded_input input(json);  // Automatically pads if needed
-auto result = parser.parse(input);
-
-// Also works with std::string, considering capacity
-std::string json_str = get_json_string();
-json_str.reserve(json_str.size() + 100);  // Reserve extra space
-simdjson::padded_input input2(json_str);  // May avoid copying if capacity is sufficient
-auto result2 = parser.parse(input2);
-```
-
-This simplifies padding management compared to manually checking and allocating.
-
-
-More generally, the following code provides a portable example.
-
 
 
 The conditional compilation checks for the `_MSC_VER` macro (indicating Microsoft Visual Studio)
@@ -272,7 +250,7 @@ long page_size() {
 }
 
 // Returns true if the buffer + len + simdjson::SIMDJSON_PADDING crosses the
-// page boundary. Assumes len != 0.
+// page boundary.
 bool need_allocation(const char *buf, size_t len) {
   return ((reinterpret_cast<uintptr_t>(buf + len - 1) % page_size())
     + simdjson::SIMDJSON_PADDING >= static_cast<uintptr_t>(page_size()));

doc/tape.md

@@ -93,14 +93,6 @@ Float values are represented as two 64-bit tape elements:
 
 Performance consideration: We store numbers of the main tape because we believe that locality of reference is helpful for performance.
 
-## Big Integers
-
-When a JSON integer exceeds the 64-bit range (both signed and unsigned), it is classified as a big integer. By default, parsing returns `BIGINT_ERROR`. When `parser.number_as_string(true)` is set, the raw digits are stored on the string tape using the same format as strings (4-byte little-endian length prefix, followed by the UTF-8 digit bytes, followed by a null terminator).
-
-A big integer is represented on the main tape as the 64-bit tape element `('Z' << 56) + x` where the payload `x` is the location on the string tape of the null-terminated digit string.
-
-For example, the JSON value `99999999999999999999` would be stored as the string `"99999999999999999999"` on the string tape, with a `'Z'` tag on the main tape. Negative big integers include the leading minus sign.
-
 ## Root node
 
 Each JSON document will have two special 64-bit tape elements representing a root node, one at the beginning and one at the end.

fuzz/fuzz_dump.cpp

@@ -54,9 +54,6 @@ static void print_json(std::ostream& os, simdjson::dom::element element) noexcep
   case simdjson::dom::element_type::NULL_VALUE:
     os << "null" << endl;
     break;
-  case simdjson::dom::element_type::BIGINT:
-    os << element.get_bigint().value_unsafe() << endl;
-    break;
   }
 }
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {

include/simdjson/annotations.h

@@ -1,71 +0,0 @@
-#ifndef SIMDJSON_ANNOTATIONS_H
-#define SIMDJSON_ANNOTATIONS_H
-
-/**
- * @file annotations.h
- * @brief Provides compile-time annotations for simdjson structures.
- * This header defines annotations that can be applied to data members of structures
- * to control how they are serialized/deserialized with simdjson.
- * This is currently experimental and subject to change (syntax and semantics may evolve).
- */
-
-#if SIMDJSON_STATIC_REFLECTION
-
-#include <meta>
-#include <string_view>
-
-namespace simdjson {
-
-// Structural compile-time string — char array avoids the pointer-based
-// 'reflect_constant failed' that occurs with const char* / string_view members.
-template <size_t N>
-struct fixed_string {
-    char data[N];
-
-    consteval fixed_string(const char (&s)[N]) noexcept {
-        for (size_t i = 0; i < N; ++i) { data[i] = s[i]; }
-    }
-
-    consteval std::string_view view() const noexcept { return {data, N - 1}; }
-
-    consteval bool operator==(const fixed_string&) const noexcept = default;
-};
-
-// Usage: [[= simdjson::rename<"first_name">]] std::string firstName;
-namespace detail {
-    template <fixed_string Name>
-    struct rename_t {
-        static constexpr auto name = Name;
-    };
-} // namespace detail
-
-template <fixed_string Name>
-inline constexpr detail::rename_t<Name> rename{};
-
-// Usage: [[= simdjson::skip]] int internalCache;
-namespace detail {
-    struct skip_tag {};
-} // namespace detail
-
-inline constexpr detail::skip_tag skip{};
-
-// Returns the JSON key for a reflected data member.
-template <auto dm>
-consteval const char* get_json_key_name() {
-    template for (constexpr auto ann :
-                  std::define_static_array(std::meta::annotations_of(dm))) {
-        constexpr auto ann_type = std::meta::type_of(ann);
-        if constexpr (std::meta::has_template_arguments(ann_type) &&
-                      std::meta::template_of(ann_type) == ^^detail::rename_t) {
-            constexpr auto args =
-                std::define_static_array(std::meta::template_arguments_of(ann_type));
-            return std::define_static_string([:args[0]:].view());
-        }
-    }
-    return std::define_static_string(std::meta::identifier_of(dm));
-}
-
-} // namespace simdjson
-
-#endif // SIMDJSON_STATIC_REFLECTION
-#endif // SIMDJSON_ANNOTATIONS_H

include/simdjson/base.h

@@ -21,10 +21,6 @@ SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS
 
 /** The maximum document size supported by simdjson. */
 constexpr size_t SIMDJSON_MAXSIZE_BYTES = 0xFFFFFFFF;
-/** The maximum depth of nested objects and arrays supported by simdjson.
- A depth of SIMDJSON_MAXSIZE_BYTES/2 is not reasonable and would be
- adversarial, but it serves as an upper bound for validation purposes. */
-constexpr size_t SIMDJSON_MAX_DEPTH = SIMDJSON_MAXSIZE_BYTES/2;
 
 /**
  * The amount of padding needed in a buffer to parse JSON.
@@ -50,21 +46,6 @@ struct padded_string;
 class padded_string_view;
 enum class stage1_mode;
 
-/**
- * Stream format for parse_many/iterate_many.
- */
-enum class stream_format {
-  whitespace_delimited, ///< Whitespace-delimited JSON documents (default, includes NDJSON/JSONL)
-  json_sequence,        ///< RFC 7464 JSON text sequences (RS-delimited)
-  comma_delimited,      ///< Comma-separated JSON documents (e.g., `{...},{...},{...}`)
-  comma_delimited_array ///< A single JSON array whose elements are iterated as
-                        ///< comma-separated documents (e.g., `[{...},{...},{...}]`).
-                        ///< The parser strips the outer `[` / `]` plus any
-                        ///< surrounding JSON whitespace (space, tab, LF, CR)
-                        ///< and then behaves like `comma_delimited` over the
-                        ///< remaining bytes.
-};
-
 namespace internal {
 
 template<typename T>

include/simdjson/common_defs.h

@@ -30,10 +30,6 @@ double from_chars(const char *first, const char* end) noexcept;
 #endif
 #endif
 
-#ifndef SIMDJSON_ENABLE_NAN_INF
-#define SIMDJSON_ENABLE_NAN_INF 0
-#endif
-
 } // namespace simdjson
 
 #if defined(__GNUC__)
@@ -49,6 +45,9 @@ double from_chars(const char *first, const char* end) noexcept;
 
 // Align to N-byte boundary
 #define SIMDJSON_ROUNDUP_N(a, n) (((a) + ((n)-1)) & ~((n)-1))
+#define SIMDJSON_ROUNDDOWN_N(a, n) ((a) & ~((n)-1))
+
+#define SIMDJSON_ISALIGNED_N(ptr, n) (((uintptr_t)(ptr) & ((n)-1)) == 0)
 
 #if SIMDJSON_REGULAR_VISUAL_STUDIO
   // We could use [[deprecated]] but it requires C++14
@@ -56,7 +55,6 @@ double from_chars(const char *first, const char* end) noexcept;
 
   #define simdjson_really_inline __forceinline
   #define simdjson_never_inline __declspec(noinline)
-  #define simdjson_really_flatten [[msvc::flatten]]
 
   #define simdjson_unused
   #define simdjson_warn_unused
@@ -97,7 +95,6 @@ double from_chars(const char *first, const char* end) noexcept;
 
   #define simdjson_really_inline inline __attribute__((always_inline))
   #define simdjson_never_inline inline __attribute__((noinline))
-  #define simdjson_really_flatten [[gnu::flatten]]
 
   #define simdjson_unused __attribute__((unused))
   #define simdjson_warn_unused __attribute__((warn_unused_result))
@@ -174,15 +171,6 @@ double from_chars(const char *first, const char* end) noexcept;
   #define simdjson_inline simdjson_really_inline
 #endif
 
-#if defined(simdjson_flatten)
-  // Prefer the user's definition of simdjson_flatten; don't define it ourselves.
-#elif (defined(__GNUC__) && !defined(__OPTIMIZE__)) || (defined(_DEBUG) && _MSC_VER )
-  // Flattening can lead to significant code bloat and high compile times. Don't use it for unoptimized builds.
-  #define simdjson_flatten
-#else
-  #define simdjson_flatten simdjson_really_flatten
-#endif
-
 #if SIMDJSON_VISUAL_STUDIO
     /**
      * Windows users need to do some extra work when building

include/simdjson/compile_time_json-inl.h

@@ -266,12 +266,6 @@ consteval std::pair<double, size_t> parse_double(const char *src,
 }
 } // namespace number_parsing
 
-consteval auto make_data_member_options(auto&& name_str) {
-  std::meta::data_member_options options{};
-  options.name = std::forward<decltype(name_str)>(name_str);
-  return options;
-}
-
 // JSON string may contain embedded nulls, and C++26 reflection does not yet
 // support std::string_view as a data member type. As a workaround, we define
 // a custom type that holds a const char* and a size.
@@ -326,8 +320,7 @@ using class_type = type_builder<meta_info...>::constructed_type;
 /**
  * @brief Variable template for constructing instances with values
  */
-template <typename T, auto... Vs> constexpr T construct_from = T{Vs...};
+template <typename T, auto... Vs> constexpr auto construct_from = T{Vs...};
-
 
 // in JSON, there are only a few whitespace characters that are allowed
 // outside of objects, arrays, strings, and numbers.
@@ -417,7 +410,7 @@ parse_number(std::string_view json,
         std::from_chars(json.data(), json.data() + json.size(), int_value);
     if (res.ec == std::errc()) {
       out = int_value;
-      if (static_cast<std::size_t>(res.ptr - json.data()) != scope) {
+      if ((res.ptr - json.data()) != scope) {
         simdjson_consteval_error(
             "Internal error: cannot agree on the character range of the float");
       }
@@ -431,7 +424,7 @@ parse_number(std::string_view json,
         std::from_chars(json.data(), json.data() + json.size(), uint_value);
     if (res.ec == std::errc()) {
       out = uint_value;
-      if (static_cast<std::size_t>(res.ptr - json.data()) != scope) {
+      if ((res.ptr - json.data()) != scope) {
         simdjson_consteval_error(
             "Internal error: cannot agree on the character range of the float");
       }
@@ -540,7 +533,7 @@ parse_string(std::string_view json) {
       // present, we have an error (isolated high surrogate), which we
       // tolerate by substituting the substitution_code_point.
       if (end - cursor < 6 || *cursor != '\\' ||
-          *(cursor + 1) != 'u') {
+          *(cursor + 1) != 'u' > 0xFFFF) {
         code_point = substitution_code_point;
       } else {       // we have \u following the high surrogate
         cursor += 2; // skip \u
@@ -894,19 +887,10 @@ parse_json_array_impl(const std::string_view json) {
   std::size_t count = values.size() - 1;
   // We assume all elements have the same type as the first element.
   // However, if the array is heterogeneous, we should use std::variant.
-  auto elem_type = std::meta::type_of(values[1]);
-  // String literals reflected via reflect_constant_string have type const
-  // char[N], but when passed as template auto parameters they decay to
-  // const char*.  Use const char* as the element type so that
-  // construct_from can aggregate-initialize the array.
-  if (std::meta::is_array_type(elem_type) &&
-      std::meta::remove_all_extents(elem_type) == ^^const char) {
-    elem_type = ^^const char *;
-  }
   auto array_type = std::meta::substitute(
       ^^std::array,
       {
-          elem_type, std::meta::reflect_constant(count)});
+          std::meta::type_of(values[1]), std::meta::reflect_constant(count)});
 
   // Create array instance with values
   values[0] = array_type;
@@ -973,7 +957,8 @@ parse_json_object_impl(std::string_view json) {
         simdjson_consteval_error("Expected '}'");
       }
       cursor += object_size;
-      auto dms = std::meta::data_member_spec(std::meta::type_of(parsed), make_data_member_options(field_name));
+      auto dms = std::meta::data_member_spec(std::meta::type_of(parsed),
+                                             {.name = field_name});
       members.push_back(std::meta::reflect_constant(dms));
       values.push_back(parsed);
 
@@ -982,7 +967,8 @@ parse_json_object_impl(std::string_view json) {
     case '[': {
       std::string_view value(cursor, end);
       auto [parsed, array_size] = parse_json_array_impl(value);
-      auto dms = std::meta::data_member_spec(std::meta::type_of(parsed), make_data_member_options(field_name));
+      auto dms = std::meta::data_member_spec(std::meta::type_of(parsed),
+                                             {.name = field_name});
       members.push_back(std::meta::reflect_constant(dms));
       values.push_back(parsed);
       if (*(cursor + array_size - 1) != ']') {
@@ -1003,7 +989,8 @@ parse_json_object_impl(std::string_view json) {
         }
       }
       auto dms =
-          std::meta::data_member_spec(^^const char *, make_data_member_options(field_name));
+          std::meta::data_member_spec(^^const char *, {
+                                                          .name = field_name});
       members.push_back(std::meta::reflect_constant(dms));
       values.push_back(std::meta::reflect_constant_string(value));
       break;
@@ -1014,7 +1001,8 @@ parse_json_object_impl(std::string_view json) {
       }
       cursor += 4;
 
-      auto dms = std::meta::data_member_spec(^^bool, make_data_member_options(field_name));
+      auto dms = std::meta::data_member_spec(^^bool, {
+                                                         .name = field_name});
       members.push_back(std::meta::reflect_constant(dms));
       values.push_back(std::meta::reflect_constant(true));
       break;
@@ -1025,7 +1013,8 @@ parse_json_object_impl(std::string_view json) {
       }
       cursor += 5;
 
-      auto dms = std::meta::data_member_spec(^^bool, make_data_member_options(field_name));
+      auto dms = std::meta::data_member_spec(^^bool, {
+                                                         .name = field_name});
       members.push_back(std::meta::reflect_constant(dms));
       values.push_back(std::meta::reflect_constant(false));
       break;
@@ -1036,7 +1025,9 @@ parse_json_object_impl(std::string_view json) {
       }
       cursor += 4;
 
-      auto dms = std::meta::data_member_spec(^^std::nullptr_t, make_data_member_options(field_name));
+      auto dms = std::meta::data_member_spec(^^std::nullptr_t,
+                                             {
+                                                 .name = field_name});
       members.push_back(std::meta::reflect_constant(dms));
       values.push_back(std::meta::reflect_constant(nullptr));
       break;
@@ -1060,19 +1051,22 @@ parse_json_object_impl(std::string_view json) {
       if (std::holds_alternative<int64_t>(out)) {
         int64_t int_value = std::get<int64_t>(out);
         auto dms =
-            std::meta::data_member_spec(^^int64_t, make_data_member_options(field_name));
+            std::meta::data_member_spec(^^int64_t, {
+                                                       .name = field_name});
         members.push_back(std::meta::reflect_constant(dms));
         values.push_back(std::meta::reflect_constant(int_value));
       } else if (std::holds_alternative<uint64_t>(out)) {
         uint64_t uint_value = std::get<uint64_t>(out);
         auto dms =
-            std::meta::data_member_spec(^^uint64_t, make_data_member_options(field_name));
+            std::meta::data_member_spec(^^uint64_t, {
+                                                        .name = field_name});
         members.push_back(std::meta::reflect_constant(dms));
         values.push_back(std::meta::reflect_constant(uint_value));
       } else {
         double float_value = std::get<double>(out);
         auto dms =
-            std::meta::data_member_spec(^^double, make_data_member_options(field_name));
+            std::meta::data_member_spec(^^double, {
+                                                      .name = field_name});
         members.push_back(std::meta::reflect_constant(dms));
         values.push_back(std::meta::reflect_constant(float_value));
       }
@@ -1117,11 +1111,16 @@ template <constevalutil::fixed_string json_str> consteval auto parse_json() {
                 "Only JSON objects and arrays are supported at the top level, this "
                 "limitation will be lifted in the future.");*/
 
-  if constexpr (json.front() == '[') {
+  constexpr auto result = json.front() == '['
-    return [: parse_json_array_impl(json).first :];
+                              ? parse_json_array_impl(json)
-  } else {
+                              : parse_json_object_impl(json);
-    return [: parse_json_object_impl(json).first :];
+  return [: result.first :];
-  }
+  /*
+  if(json.front() == '[') {
+      return [:parse_json_array_impl(json).first:];
+  } else if(json.front() == '{') {
+   //   return [:parse_json_object_impl(json).first:];
+  }*/
 }
 
 } // namespace compile_time

include/simdjson/compile_time_json.h

@@ -63,16 +63,13 @@ namespace compile_time {
 template <constevalutil::fixed_string json_str> consteval auto parse_json();
 
 } // namespace compile_time
+} // namespace simdjson
 
-inline namespace literals {
 
 template <simdjson::constevalutil::fixed_string str>
 consteval auto operator ""_json() {
   return simdjson::compile_time::parse_json<str>();
 }
 
-} // namespace literals
-} // namespace simdjson
-
 #endif // SIMDJSON_STATIC_REFLECTION
 #endif // SIMDJSON_GENERIC_COMPILE_TIME_JSON_H

include/simdjson/compiler_check.h

@@ -119,4 +119,5 @@
 #define SIMDJSON_CONSTEVAL 0
 #endif // defined(__cpp_consteval) && __cpp_consteval >= 201811L && defined(__cpp_lib_constexpr_string) && __cpp_lib_constexpr_string >= 201907L
 #endif // !defined(SIMDJSON_CONSTEVAL)
+
 #endif // SIMDJSON_COMPILER_CHECK_H

include/simdjson/constevalutil.h

@@ -58,11 +58,6 @@ struct fixed_string {
             data[i] = str[i];
         }
     }
-    constexpr fixed_string(const unsigned char (&str)[N])  {
-        for (std::size_t i = 0; i < N; ++i) {
-            data[i] = static_cast<char>(str[i]);
-        }
-    }
     char data[N];
     constexpr std::string_view view() const { return {data, N - 1}; }
     constexpr size_t size() const { return N ; }

include/simdjson/convert-inl.h

@@ -37,6 +37,9 @@ inline auto_parser<parser_type>::auto_parser(parser_type parser, ondemand::docum
   : auto_parser{*parser, std::move(doc)} {}
 
 
+
+
+
 template <typename parser_type>
 inline std::remove_pointer_t<parser_type> &auto_parser<parser_type>::parser() noexcept {
   if constexpr (std::is_pointer_v<parser_type>) {
@@ -115,6 +118,16 @@ template <typename T>
 inline auto to_adaptor<T>::operator()(ondemand::parser &parser, padded_string_view const str) const noexcept {
   return auto_parser<ondemand::parser *>{parser, str};
 }
+
+template <typename T>
+inline auto to_adaptor<T>::operator()(std::string str) const noexcept {
+  return auto_parser<ondemand::parser *>{pad_with_reserve(str)};
+}
+
+template <typename T>
+inline auto to_adaptor<T>::operator()(ondemand::parser &parser, std::string str) const noexcept {
+  return auto_parser<ondemand::parser *>{parser, pad_with_reserve(str)};
+}
 } // namespace internal
 } // namespace convert
 } // namespace simdjson

include/simdjson/convert.h

@@ -36,12 +36,12 @@ public:
 	explicit auto_parser(std::remove_pointer_t<parser_type> &parser, padded_string_view const str) noexcept requires(std::is_pointer_v<parser_type>);
 	explicit auto_parser(padded_string_view const str) noexcept requires(std::is_pointer_v<parser_type>);
 	explicit auto_parser(parser_type parser, ondemand::document &&doc) noexcept requires(std::is_pointer_v<parser_type>);
-	auto_parser(auto_parser const &) = delete;
+		auto_parser(auto_parser const &) = delete;
-	auto_parser &operator=(auto_parser const &) = delete;
+		auto_parser &operator=(auto_parser const &) = delete;
-	~auto_parser() = default;
+		auto_parser(auto_parser &&) noexcept = default;
-    // Prevent moving
+		auto_parser &operator=(auto_parser &&) noexcept = default;
-    auto_parser(auto_parser&&) = delete;
+		~auto_parser() = default;
-	auto_parser &operator=(auto_parser &&) noexcept = delete;
+
 	simdjson_warn_unused std::remove_pointer_t<parser_type> &parser() noexcept;
 
 	template <typename T>
@@ -75,6 +75,11 @@ struct to_adaptor {
 	T operator()(simdjson_result<ondemand::value> &val) const noexcept;
 	auto operator()(padded_string_view const str) const noexcept;
 	auto operator()(ondemand::parser &parser, padded_string_view const str) const noexcept;
+	// The std::string is padded with reserve to ensure there is enough space for padding.
+	// Some sanitizers may not like this, so you can use simdjson::pad instead.
+	// simdjson::from(simdjson::pad(str))
+	auto operator()(std::string str) const noexcept;
+	auto operator()(ondemand::parser &parser, std::string str) const noexcept;
 };
 // deduction guide
 auto_parser(padded_string_view const str) -> auto_parser<ondemand::parser*>;
@@ -85,12 +90,7 @@ auto_parser(padded_string_view const str) -> auto_parser<ondemand::parser*>;
  * The simdjson::from instance is EXPERIMENTAL AND SUBJECT TO CHANGES.
  *
  * The `from` instance is a utility adaptor for parsing JSON strings into objects.
- *
+ * It provides a convenient way to convert JSON data into C++ objects using the `auto_parser`.
- * The string must be a simdjson::padded_string_view, which can be created from a std::string
- * with simdjson::pad(), from a simdjson::padded_string, or string literal using the `_padded`
- * user-defined literal.
- *
- * The `from` instance provides a convenient way to convert JSON data into C++ objects using the `auto_parser`.
  *
  * Example usage:
  *

include/simdjson/dom/array-inl.h

@@ -103,9 +103,21 @@ inline simdjson_result<element> array::at_pointer(std::string_view json_pointer)
   // We don't support this, because we're returning a real element, not a position.
   if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; }
 
+  // Read the array index
   size_t array_index = 0;
   size_t i;
-  SIMDJSON_TRY(internal::parse_json_pointer_array_index(json_pointer, array_index, i));
+  for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) {
+    uint8_t digit = uint8_t(json_pointer[i] - '0');
+    // Check for non-digit in array index. If it's there, we're trying to get a field in an object
+    if (digit > 9) { return INCORRECT_TYPE; }
+    array_index = array_index*10 + digit;
+  }
+
+  // 0 followed by other digits is invalid
+  if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0"
+
+  // Empty string is invalid; so is a "/" with no digits before it
+  if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index"
 
   // Get the child
   auto child = array(tape).at(array_index);

include/simdjson/dom/document-inl.h

@@ -33,25 +33,16 @@ inline error_code document::allocate(size_t capacity) noexcept {
     allocated_capacity = 0;
     return SUCCESS;
   }
-  if (capacity > SIMDJSON_MAXSIZE_BYTES) {
-    return CAPACITY;
-  }
 
   // a pathological input like "[[[[..." would generate capacity tape elements, so
   // need a capacity of at least capacity + 1, but it is also possible to do
   // worse with "[7,7,7,7,6,7,7,7,6,7,7,6,[7,7,7,7,6,7,7,7,6,7,7,6,7,7,7,7,7,7,6"
   //where capacity + 1 tape elements are
   // generated, see issue https://github.com/simdjson/simdjson/issues/345
-  if(capacity + 3 < capacity) {
-    return CAPACITY; // overflow, only happen on legacy 32-bit systems with very large capacity
-  }
   size_t tape_capacity = SIMDJSON_ROUNDUP_N(capacity + 3, 64);
   // a document with only zero-length strings... could have capacity/3 string
   // and we would need capacity/3 * 5 bytes on the string buffer
-  if(5 * (capacity / 3) + SIMDJSON_PADDING < SIMDJSON_PADDING) {
+  size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * capacity / 3 + SIMDJSON_PADDING, 64);
-    return CAPACITY; // overflow, only happen on legacy 32-bit systems with very large capacity
-  }
-  size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * (capacity / 3) + SIMDJSON_PADDING, 64);
   string_buf.reset( new (std::nothrow) uint8_t[string_capacity]);
   tape.reset(new (std::nothrow) uint64_t[tape_capacity]);
   if(!(string_buf && tape)) {
@@ -150,15 +141,6 @@ inline bool document::dump_raw_tape(std::ostream &os) const noexcept {
     case 'r': // we start and end with the root node
       // should we be hitting the root node?
       return false;
-    case 'Z': // we have a big integer
-      os << "bigint ";
-      std::memcpy(&string_length, string_buf.get() + payload, sizeof(uint32_t));
-      os << std::string_view(
-        reinterpret_cast<const char *>(string_buf.get() + payload + sizeof(uint32_t)),
-        string_length
-      );
-      os << '\n';
-      break;
     default:
       return false;
     }

include/simdjson/dom/document_stream-inl.h

@@ -89,14 +89,12 @@ simdjson_inline document_stream::document_stream(
   dom::parser &_parser,
   const uint8_t *_buf,
   size_t _len,
-  size_t _batch_size,
+  size_t _batch_size
-  stream_format _format
 ) noexcept
   : parser{&_parser},
     buf{_buf},
     len{_len},
     batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size},
-    format{_format},
     error{SUCCESS}
 #ifdef SIMDJSON_THREADS_ENABLED
     , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change
@@ -114,7 +112,6 @@ simdjson_inline document_stream::document_stream() noexcept
     buf{nullptr},
     len{0},
     batch_size{0},
-    format{stream_format::whitespace_delimited},
     error{UNINITIALIZED}
 #ifdef SIMDJSON_THREADS_ENABLED
     , use_thread(false)
@@ -227,14 +224,7 @@ simdjson_inline std::string_view document_stream::iterator::source() const noexc
   } else {
     size_t next_doc_index = stream->batch_start + stream->parser->implementation->structural_indexes[stream->parser->implementation->next_structural_index];
     size_t svlen = next_doc_index - current_index();
-    // Trim trailing whitespace, NUL, and RS (0x1E). In RFC 7464 json_sequence
+    while(svlen > 1 && (std::isspace(start[svlen-1]) || start[svlen-1] == '\0')) {
-    // mode the scanner classifies RS as a scalar character, so an RS-prefixed
-    // scalar document (number/true/false/null/string) has no closing structural
-    // index and the slice runs all the way up to the next document's RS. RS
-    // cannot legally appear in a JSON value at the source level (control
-    // characters in strings must be escaped as \u001E), so stripping it is
-    // safe in every stream_format.
-    while(svlen > 1 && (std::isspace(static_cast<unsigned char>(start[svlen-1])) || start[svlen-1] == '\0' || static_cast<uint8_t>(start[svlen-1]) == 0x1E || (stream->format == stream_format::comma_delimited && start[svlen-1] == ','))) {
       svlen--;
     }
     return std::string_view(start, svlen);
@@ -284,35 +274,10 @@ inline size_t document_stream::next_batch_start() const noexcept {
 
 inline error_code document_stream::run_stage1(dom::parser &p, size_t _batch_start) noexcept {
   size_t remaining = len - _batch_start;
-  stage1_mode mode;
   if (remaining <= batch_size) {
-    // Final batch
+    return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final);
-    switch (format) {
-      case stream_format::json_sequence:
-        mode = stage1_mode::json_sequence_final;
-        break;
-      case stream_format::comma_delimited:
-        mode = stage1_mode::comma_delimited_final;
-        break;
-      default:
-        mode = stage1_mode::streaming_final;
-        break;
-    }
-    return p.implementation->stage1(&buf[_batch_start], remaining, mode);
   } else {
-    // Partial batch
+    return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial);
-    switch (format) {
-      case stream_format::json_sequence:
-        mode = stage1_mode::json_sequence_partial;
-        break;
-      case stream_format::comma_delimited:
-        mode = stage1_mode::comma_delimited_partial;
-        break;
-      default:
-        mode = stage1_mode::streaming_partial;
-        break;
-    }
-    return p.implementation->stage1(&buf[_batch_start], batch_size, mode);
   }
 }
 

include/simdjson/dom/document_stream.h

@@ -206,14 +206,12 @@ private:
    * @param buf is the raw byte buffer we need to process
    * @param len is the length of the raw byte buffer in bytes
    * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document)
-   * @param format is the stream format
    */
   simdjson_inline document_stream(
     dom::parser &parser,
     const uint8_t *buf,
     size_t len,
-    size_t batch_size,
+    size_t batch_size
-    stream_format format = stream_format::whitespace_delimited
   ) noexcept;
 
   /**
@@ -263,8 +261,6 @@ private:
   const uint8_t *buf;
   size_t len;
   size_t batch_size;
-  /** The stream format. */
-  stream_format format;
   /** The error (or lack thereof) from the current document. */
   error_code error;
   size_t batch_start{0};

include/simdjson/dom/element-inl.h

@@ -81,10 +81,6 @@ simdjson_inline simdjson_result<bool> simdjson_result<dom::element>::get_bool()
   if (error()) { return error(); }
   return first.get_bool();
 }
-simdjson_inline simdjson_result<std::string_view> simdjson_result<dom::element>::get_bigint() const noexcept {
-  if (error()) { return error(); }
-  return first.get_bigint();
-}
 
 simdjson_inline bool simdjson_result<dom::element>::is_array() const noexcept {
   return !error() && first.is_array();
@@ -114,9 +110,6 @@ simdjson_inline bool simdjson_result<dom::element>::is_bool() const noexcept {
 simdjson_inline bool simdjson_result<dom::element>::is_null() const noexcept {
   return !error() && first.is_null();
 }
-simdjson_inline bool simdjson_result<dom::element>::is_bigint() const noexcept {
-  return !error() && first.is_bigint();
-}
 
 simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::operator[](std::string_view key) const noexcept {
   if (error()) { return error(); }
@@ -225,15 +218,6 @@ inline simdjson_result<bool> element::get_bool() const noexcept {
   }
   return INCORRECT_TYPE;
 }
-inline simdjson_result<std::string_view> element::get_bigint() const noexcept {
-  SIMDJSON_DEVELOPMENT_ASSERT(tape.usable());
-  switch (tape.tape_ref_type()) {
-    case internal::tape_type::BIGINT:
-      return tape.get_string_view();
-    default:
-      return INCORRECT_TYPE;
-  }
-}
 inline simdjson_result<const char *> element::get_c_str() const noexcept {
   SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
   switch (tape.tape_ref_type()) {
@@ -376,10 +360,6 @@ inline bool element::is_null() const noexcept {
   return tape.is_null_on_tape();
 }
 
-inline bool element::is_bigint() const noexcept {
-  return tape.tape_ref_type() == internal::tape_type::BIGINT;
-}
-
 #if SIMDJSON_EXCEPTIONS
 
 inline element::operator bool() const noexcept(false) { return get<bool>(); }
@@ -512,8 +492,6 @@ inline std::ostream& operator<<(std::ostream& out, element_type type) {
       return out << "bool";
     case element_type::NULL_VALUE:
       return out << "null";
-    case element_type::BIGINT:
-      return out << "bigint";
     default:
       return out << "unexpected content!!!"; // abort() usage is forbidden in the library
   }

include/simdjson/dom/element.h

@@ -21,10 +21,7 @@ enum class element_type {
   DOUBLE = 'd',    ///< double: Any number with a "." or "e" that fits in double.
   STRING = '"',    ///< std::string_view
   BOOL = 't',      ///< bool
-  NULL_VALUE = 'n', ///< null
+  NULL_VALUE = 'n' ///< null
-  /// The BIGINT type is for integers that do not fit in 64 bits. It is only present
-  // if you set parser.number_as_string(true).
-  BIGINT = 'Z'     ///< std::string_view: big integer stored as raw digit string
 };
 
 /**
@@ -123,14 +120,6 @@ public:
    */
   inline simdjson_result<bool> get_bool() const noexcept;
 
-  /**
-   * Read this element as a big integer (raw digit string).
-   *
-   * @returns A string_view of the raw digits, or:
-   *          INCORRECT_TYPE if the JSON element is not a big integer.
-   */
-  inline simdjson_result<std::string_view> get_bigint() const noexcept;
-
   /**
    * Whether this element is a json array.
    *
@@ -186,11 +175,6 @@ public:
    */
   inline bool is_null() const noexcept;
 
-  /**
-   * Whether this element is a big integer (number exceeding 64-bit range).
-   */
-  inline bool is_bigint() const noexcept;
-
   /**
    * Tell whether the value can be cast to provided type (T).
    *
@@ -549,7 +533,6 @@ public:
   simdjson_inline simdjson_result<uint64_t> get_uint64() const noexcept;
   simdjson_inline simdjson_result<double> get_double() const noexcept;
   simdjson_inline simdjson_result<bool> get_bool() const noexcept;
-  simdjson_inline simdjson_result<std::string_view> get_bigint() const noexcept;
 
   simdjson_inline bool is_array() const noexcept;
   simdjson_inline bool is_object() const noexcept;
@@ -560,7 +543,6 @@ public:
   simdjson_inline bool is_number() const noexcept;
   simdjson_inline bool is_bool() const noexcept;
   simdjson_inline bool is_null() const noexcept;
-  simdjson_inline bool is_bigint() const noexcept;
 
   simdjson_inline simdjson_result<dom::element> operator[](std::string_view key) const noexcept;
   simdjson_inline simdjson_result<dom::element> operator[](const char *key) const noexcept;

include/simdjson/dom/fractured_json-inl.h

@@ -72,7 +72,7 @@ inline element_metrics structure_analyzer::analyze_scalar(const dom::element& el
   metrics.complexity = 0;
   metrics.child_count = 0;
   metrics.can_inline = true;
-  metrics.recommended_layout = layout_mode::single_line;
+  metrics.recommended_layout = layout_mode::INLINE;
 
   switch (elem.type()) {
     case dom::element_type::STRING: {
@@ -158,16 +158,16 @@ inline element_metrics structure_analyzer::analyze_array(const dom::array& arr,
 
   // Decide layout
   if (metrics.child_count == 0) {
-    metrics.recommended_layout = layout_mode::single_line;
+    metrics.recommended_layout = layout_mode::INLINE;
   } else if (metrics.can_inline) {
-    metrics.recommended_layout = layout_mode::single_line;
+    metrics.recommended_layout = layout_mode::INLINE;
   } else if (metrics.is_uniform_array && !metrics.common_keys.empty()) {
-    metrics.recommended_layout = layout_mode::table;
+    metrics.recommended_layout = layout_mode::TABLE;
   } else if (current_opts_->enable_compact_multiline &&
              max_child_complexity <= current_opts_->max_compact_array_complexity) {
-    metrics.recommended_layout = layout_mode::compact_multiline;
+    metrics.recommended_layout = layout_mode::COMPACT_MULTILINE;
   } else {
-    metrics.recommended_layout = layout_mode::expanded;
+    metrics.recommended_layout = layout_mode::EXPANDED;
   }
 
   return metrics;
@@ -206,9 +206,9 @@ inline element_metrics structure_analyzer::analyze_object(const dom::object& obj
 
   // Objects use inline or expanded (no table/compact for objects)
   if (metrics.child_count == 0 || metrics.can_inline) {
-    metrics.recommended_layout = layout_mode::single_line;
+    metrics.recommended_layout = layout_mode::INLINE;
   } else {
-    metrics.recommended_layout = layout_mode::expanded;
+    metrics.recommended_layout = layout_mode::EXPANDED;
   }
 
   return metrics;
@@ -227,18 +227,8 @@ inline size_t structure_analyzer::estimate_string_length(std::string_view s) con
 }
 
 inline size_t structure_analyzer::estimate_number_length(double d) const {
-  if (!std::isfinite(d)) {
+  if (std::isnan(d) || std::isinf(d)) {
-#if SIMDJSON_ENABLE_NAN_INF
-    if (std::isnan(d)) {
-      return 3; // "NaN"
-    } else if (d < 0) {
-      return 9; // "-Infinity"
-    } else {
-      return 8; // "Infinity"
-    }
-#else
     return 4; // "null" for invalid numbers
-#endif
   }
   // Rough estimate: up to 17 significant digits + sign + decimal point + exponent
   char buf[32];
@@ -356,28 +346,28 @@ inline layout_mode structure_analyzer::decide_layout(const element_metrics& metr
                                                       size_t depth,
                                                       size_t available_width) const {
   if (metrics.child_count == 0) {
-    return layout_mode::single_line;
+    return layout_mode::INLINE;
   }
 
   // Check inline feasibility
   size_t indent_width = depth * current_opts_->indent_spaces;
   if (metrics.can_inline &&
       metrics.estimated_inline_len + indent_width <= available_width) {
-    return layout_mode::single_line;
+    return layout_mode::INLINE;
   }
 
   // Check table mode
   if (metrics.is_uniform_array && !metrics.common_keys.empty()) {
-    return layout_mode::table;
+    return layout_mode::TABLE;
   }
 
   // Check compact multiline
   if (current_opts_->enable_compact_multiline &&
       metrics.complexity <= current_opts_->max_compact_array_complexity + 1) {
-    return layout_mode::compact_multiline;
+    return layout_mode::COMPACT_MULTILINE;
   }
 
-  return layout_mode::expanded;
+  return layout_mode::EXPANDED;
 }
 
 //
@@ -388,7 +378,7 @@ inline fractured_formatter::fractured_formatter(const fractured_json_options& op
     : options_(opts), column_widths_{} {}
 
 simdjson_inline void fractured_formatter::print_newline() {
-  if (current_layout_ == layout_mode::single_line) {
+  if (current_layout_ == layout_mode::INLINE) {
     return; // No newlines in inline mode
   }
   one_char('\n');
@@ -396,7 +386,7 @@ simdjson_inline void fractured_formatter::print_newline() {
 }
 
 simdjson_inline void fractured_formatter::print_indents(size_t depth) {
-  if (current_layout_ == layout_mode::single_line) {
+  if (current_layout_ == layout_mode::INLINE) {
     return; // No indentation in inline mode
   }
   for (size_t i = 0; i < depth * options_.indent_spaces; i++) {
@@ -543,16 +533,16 @@ inline void fractured_string_builder::format_array(const dom::array& arr,
                                                     const element_metrics& metrics,
                                                     size_t depth) {
   switch (metrics.recommended_layout) {
-    case layout_mode::single_line:
+    case layout_mode::INLINE:
       format_array_inline(arr, metrics);
       break;
-    case layout_mode::compact_multiline:
+    case layout_mode::COMPACT_MULTILINE:
       format_array_compact_multiline(arr, metrics, depth);
       break;
-    case layout_mode::table:
+    case layout_mode::TABLE:
       format_array_as_table(arr, metrics, depth);
       break;
-    case layout_mode::expanded:
+    case layout_mode::EXPANDED:
     default:
       format_array_expanded(arr, metrics, depth);
       break;
@@ -562,7 +552,7 @@ inline void fractured_string_builder::format_array(const dom::array& arr,
 inline void fractured_string_builder::format_array_inline(const dom::array& arr,
                                                             const element_metrics& metrics) {
   layout_mode prev_layout = format_.get_layout_mode();
-  format_.set_layout_mode(layout_mode::single_line);
+  format_.set_layout_mode(layout_mode::INLINE);
 
   format_.start_array();
 
@@ -623,7 +613,7 @@ inline void fractured_string_builder::format_array_compact_multiline(const dom::
 
     // Format element inline
     layout_mode prev_layout = format_.get_layout_mode();
-    format_.set_layout_mode(layout_mode::single_line);
+    format_.set_layout_mode(layout_mode::INLINE);
     const element_metrics& child_metrics = (child_idx < metrics.children.size())
         ? metrics.children[child_idx] : element_metrics{};
     format_element(elem, child_metrics, depth + 1);
@@ -719,7 +709,7 @@ inline void fractured_string_builder::format_array_as_table(const dom::array& ar
       // Write value
       if (found) {
         layout_mode prev_layout = format_.get_layout_mode();
-        format_.set_layout_mode(layout_mode::single_line);
+        format_.set_layout_mode(layout_mode::INLINE);
         const element_metrics& value_metrics = (field_idx < row_metrics.children.size())
             ? row_metrics.children[field_idx] : element_metrics{};
         format_element(value, value_metrics, depth + 1);
@@ -788,7 +778,7 @@ inline void fractured_string_builder::format_array_expanded(const dom::array& ar
 inline void fractured_string_builder::format_object(const dom::object& obj,
                                                      const element_metrics& metrics,
                                                      size_t depth) {
-  if (metrics.recommended_layout == layout_mode::single_line || metrics.can_inline) {
+  if (metrics.recommended_layout == layout_mode::INLINE || metrics.can_inline) {
     format_object_inline(obj, metrics);
   } else {
     format_object_expanded(obj, metrics, depth);
@@ -798,7 +788,7 @@ inline void fractured_string_builder::format_object(const dom::object& obj,
 inline void fractured_string_builder::format_object_inline(const dom::object& obj,
                                                              const element_metrics& metrics) {
   layout_mode prev_layout = format_.get_layout_mode();
-  format_.set_layout_mode(layout_mode::single_line);
+  format_.set_layout_mode(layout_mode::INLINE);
 
   format_.start_object();
 
@@ -960,14 +950,6 @@ inline size_t fractured_string_builder::measure_value_length(const dom::element&
     case dom::element_type::DOUBLE: {
       double val;
       if (elem.get_double().get(val) == SUCCESS) {
-#if SIMDJSON_ENABLE_NAN_INF
-        if (!std::isfinite(val)) {
-          if (std::isnan(val))
-            return 3; // "NaN"
-          // "-Infinity" (9) or "Infinity" (8)
-          return val < 0 ? 9 : 8;
-        }
-#endif
         char buf[32];
         int len = snprintf(buf, sizeof(buf), "%.17g", val);
         return len > 0 ? static_cast<size_t>(len) : 1;

include/simdjson/dom/parser-inl.h

@@ -36,11 +36,10 @@ inline bool parser::dump_raw_tape(std::ostream &os) const noexcept {
 }
 
 inline simdjson_result<size_t> parser::read_file(std::string_view path) noexcept {
-  const std::string path_copy(path);
   // Open the file
   SIMDJSON_PUSH_DISABLE_WARNINGS
   SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe
-  std::FILE *fp = std::fopen(path_copy.c_str(), "rb");
+  std::FILE *fp = std::fopen(path.data(), "rb");
   SIMDJSON_POP_DISABLE_WARNINGS
 
   if (fp == nullptr) {
@@ -133,7 +132,6 @@ inline simdjson_result<element> parser::parse_into_document(document& provided_d
     buf += 3;
     len -= 3;
   }
-  implementation->_number_as_string = _number_as_string;
   _error = implementation->parse(buf, len, provided_doc);
 
   if (_error) { return _error; }
@@ -170,7 +168,12 @@ simdjson_inline simdjson_result<element> parser::parse(const padded_string_view
 }
 
 inline simdjson_result<document_stream> parser::parse_many(const uint8_t *buf, size_t len, size_t batch_size) noexcept {
-  return parse_many(buf, len, batch_size, stream_format::whitespace_delimited);
+  if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; }
+  if((len >= 3) && (std::memcmp(buf, "\xEF\xBB\xBF", 3) == 0)) {
+    buf += 3;
+    len -= 3;
+  }
+  return document_stream(*this, buf, len, batch_size);
 }
 inline simdjson_result<document_stream> parser::parse_many(const char *buf, size_t len, size_t batch_size) noexcept {
   return parse_many(reinterpret_cast<const uint8_t *>(buf), len, batch_size);
@@ -181,48 +184,6 @@ inline simdjson_result<document_stream> parser::parse_many(const std::string &s,
 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);
 }
-inline simdjson_result<document_stream> parser::parse_many(const padded_string_view &v, size_t batch_size) noexcept {
-  return parse_many(v.data(), v.length(), batch_size);
-}
-
-inline simdjson_result<document_stream> parser::parse_many(const uint8_t *buf, size_t len, size_t batch_size, stream_format format) noexcept {
-  if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; }
-  if((len >= 3) && (std::memcmp(buf, "\xEF\xBB\xBF", 3) == 0)) {
-    buf += 3;
-    len -= 3;
-  }
-  if (format == stream_format::comma_delimited_array) {
-    // Strip leading JSON whitespace.
-    while (len > 0 && (buf[0] == ' ' || buf[0] == '\t' || buf[0] == '\n' || buf[0] == '\r')) {
-      buf++; len--;
-    }
-    // Expect the opening '['.
-    if (len == 0 || buf[0] != '[') { return TAPE_ERROR; }
-    buf++; len--;
-    // Strip trailing JSON whitespace.
-    while (len > 0 && (buf[len-1] == ' ' || buf[len-1] == '\t' || buf[len-1] == '\n' || buf[len-1] == '\r')) {
-      len--;
-    }
-    // Expect the closing ']'.
-    if (len == 0 || buf[len-1] != ']') { return TAPE_ERROR; }
-    len--;
-    // Fall through to comma_delimited over the array contents.
-    format = stream_format::comma_delimited;
-  }
-  return document_stream(*this, buf, len, batch_size, format);
-}
-inline simdjson_result<document_stream> parser::parse_many(const char *buf, size_t len, size_t batch_size, stream_format format) noexcept {
-  return parse_many(reinterpret_cast<const uint8_t *>(buf), len, batch_size, format);
-}
-inline simdjson_result<document_stream> parser::parse_many(const std::string &s, size_t batch_size, stream_format format) noexcept {
-  return parse_many(s.data(), s.length(), batch_size, format);
-}
-inline simdjson_result<document_stream> parser::parse_many(const padded_string &s, size_t batch_size, stream_format format) noexcept {
-  return parse_many(s.data(), s.length(), batch_size, format);
-}
-inline simdjson_result<document_stream> parser::parse_many(const padded_string_view &v, size_t batch_size, stream_format format) noexcept {
-  return parse_many(v.data(), v.length(), batch_size, format);
-}
 
 simdjson_inline size_t parser::capacity() const noexcept {
   return implementation ? implementation->capacity() : 0;