name: clang-c++23
on:
  push:
    branches: [ master, development, pull-request/* ]
    paths:
      - '.github/workflows/**'
      - 'include/**'
      - 'test/**'
      - 'CMakeLists.txt'
      - 'cmake/**'
      - 'BUILD.bazel'
      - 'MODULE.bazel*'
      - 'meson.build'
      - 'meson_options.txt'
      - 'subprojects/**'
      - '.devcontainer/**'
  pull_request:
    branches: [ master, development, pull-request/* ]
    types: [opened, synchronize, reopened]
    paths:
      - '.github/workflows/**'
      - 'include/**'
      - 'test/**'
      - 'CMakeLists.txt'
      - 'cmake/**'
      - 'BUILD.bazel'
      - 'MODULE.bazel*'
      - 'meson.build'
      - 'meson_options.txt'
      - 'subprojects/**'
      - '.devcontainer/**'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:

  build-clang-cpp23-linux-stl-libcxx:
    name: Clang C++23 Linux - STL - libc++
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-24.04]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Install libc++
      run: |
        sudo apt-get update
        sudo apt-get install -y libc++-dev libc++abi-dev

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        export CXXFLAGS="-stdlib=libc++"
        export LDFLAGS="-stdlib=libc++"
        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      # The system libc++/libc++abi are not built with ASan. Exception objects
      # (e.g. std::runtime_error's reference counted string) are allocated with
      # operator new inside libc++.so, but released with free() inside
      # libc++abi.so, which AddressSanitizer reports as an alloc-dealloc-mismatch.
      # This is a libc++ packaging issue, not an ETL defect, so the check is
      # disabled for this job only.
      env:
        ASAN_OPTIONS: alloc_dealloc_mismatch=0
      run: ./test/etl_tests -v

  build-clang-cpp23-linux-no-stl:
    name: Clang C++23 Linux - No STL
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-24.04]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"
    
    - name: Run tests
      run: ./test/etl_tests -v

  build-clang-cpp23-linux-stl-force-cpp03:
    name: Clang C++23 Linux - STL - Force C++03
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-24.04]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      run: ./test/etl_tests -v

  build-clang-cpp2-linux-no-stl-force-cpp03:
    name: Clang C++23 Linux - No STL - Force C++03
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-24.04]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      run: ./test/etl_tests -v

  build-clang-cpp23-osx-stl:
    name: Clang C++23 OSX - STL
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macos-15]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      run: ./test/etl_tests -v

  build-clang-cpp23-osx-no-stl:
    name: Clang C++23 OSX - No STL
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macos-15]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=OFF -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      run: ./test/etl_tests -v

  build-clang-cpp23-osx-stl-force-cpp03:
    name: Clang C++23 OSX - STL - Force C++03
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macos-15]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      run: ./test/etl_tests -v

  build-clang-cpp23-osx-no-stl-force-cpp03:
    name: Clang C++23 OSX - No STL - Force C++03
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macos-15]

    steps:
    - uses: actions/checkout@v6.0.3

    - name: Build
      run: |
        export CC=clang
        export CXX=clang++
        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=ON -DETL_CXX_STANDARD=23 -DETL_OPTIMISATION=-O3 -DETL_ENABLE_SANITIZER=ON ./
        clang --version
        make -j "$(getconf _NPROCESSORS_ONLN)"

    - name: Run tests
      run: ./test/etl_tests -v