c-std.yml

name: C Standard

# Compile with as many C standards as possible.
# The worflow is setup to fail on any compilation warnings.

on:
  workflow_dispatch:
  push:
  pull_request:

jobs:

  main:
    name: ${{ matrix.os.name }} ${{ matrix.compiler }} ${{ matrix.arch.name }} ${{ matrix.std.name }}  ${{ matrix.builder }}
    runs-on: ${{ matrix.os.value }}
    strategy:
      fail-fast: false
      matrix:
        os:
          - name: Linux
            value: ubuntu-latest

          - name: MacOS
            value: macos-latest

          - name: Windows
            value: windows-latest
            cmake-opt: -G Ninja

        compiler:
          - gcc
          - clang

        arch:
          - name: 64-bit
            tag: amd64
            compiler-opt: -m64
            cmake-opt: -A x64

          - name: 32-bit
            tag: i386
            compiler-opt: -m32
            cmake-opt: -A Win32


        builder:
          - configure
          - cmake

        std:
          - name: c89
            value: c89

          - name: gnu89
            value: gnu89

          - name: c94
            value: iso9899:199409

          - name: c99
            value: c99

          - name: gnu99
            value: gnu99

          - name: c11
            value: c11

          - name: gnu11
            value: gnu11

          - name: c17
            value: c17

          - name: gnu17
            value: gnu17

          - name: c2x
            value: c2x

          - name: gnu2x
            value: gnu2x

        exclude:
            # Don't run 32-bit on MacOS
          - { os:   { name: MacOS },
              arch: { tag:  i386  } }

            # Don't run configure on Windows
          - { os:   { name: Windows },
              builder: configure }

            # Don't run gcc 32-bit on Windows
          - { os:   { name: Windows },
              arch: { tag:  i386  } }

    steps:

    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        show-progress: 'false'

    - name: Install packages (Linux)
      if: runner.os == 'Linux' && matrix.arch.tag == 'i386'
      run: |
        sudo apt-get update
        sudo apt install gcc-multilib libc6-dev-i386-cross

    - name: Install packages (Windows)
      if: runner.os == 'Windows'
      run: |
          choco install --no-progress ninja

    - name: Generate project files (configure)
      if: matrix.builder == 'configure'
      run: |
        ./configure
      env:
        CC: ${{ matrix.compiler }}
        CFLAGS: -std=${{ matrix.std.value }} ${{ matrix.arch.compiler-opt }} -Werror -Wall -Wextra

    - name: Compile source code (configure)
      if: matrix.builder == 'configure'
      run: make -j2

    - name: Run test cases (configure)
      if: matrix.builder == 'configure'
      run: |
        make test
        make cover

    - name: Generate project files (cmake)
      if: matrix.builder == 'cmake'
      run: |
        cmake -S . -B . -D CMAKE_BUILD_TYPE=Release ${{ matrix.os.cmake-opt }}
      env:
        CC: ${{ matrix.compiler }}
        CFLAGS: -std=${{ matrix.std.value }} ${{ matrix.arch.compiler-opt }} -Werror -Wall -Wextra

    - name: Compile source code (cmake)
      if: matrix.builder == 'cmake'
      run: cmake --build . --config Release

    - name: Run test cases (cmake)
      if: matrix.builder == 'cmake'
      run: ctest -C Release --output-on-failure --max-width 120


  msvc:
    name: ${{ matrix.os.name }} ${{ matrix.compiler }} ${{ matrix.arch.name }} ${{ matrix.std.name }}  ${{ matrix.builder }}
    runs-on: ${{ matrix.os.value }}
    strategy:
      fail-fast: false
      matrix:
        os:
          - name: Windows
            value: windows-latest

        compiler:
          - cl

        arch:
          - name: 32-bit
            value: -A Win32

          - name: 64-bit
            value: -A x64

        builder:
          - cmake

        std:
          - name: default
            value: ""

          - name: C11
            value: /std:c11

          - name: C17
            value: /std:c17

          # not available on the runner yet
          # - name: C20
          #   value: /std:c20

          - name: latest
            value: /std:clatest

    steps:

    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        show-progress: 'false'

    - name: Generate project files (cmake)
      run: |
        cmake -S . -B . ${{ matrix.arch.value }} -D CMAKE_BUILD_TYPE=Release
      env:
        CC: ${{ matrix.compiler }}
        CFLAGS: /WX ${{ matrix.std.value }}

    - name: Compile source code (cmake)
      run: cmake --build . --config Release -v

    - name: Run test cases (cmake)
      run: ctest -C Release --output-on-failure --max-width 120