Add a dummy header to preserve the presence of an include directory, in order to not break downstream third-party installation logic; revert changes to CMakeLists.txt

Move Boost.StaticAssert to Boost.Config

.github/workflows/ci.yml

@@ -0,0 +1,668 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - develop
+      - feature/**
+
+env:
+  UBSAN_OPTIONS: print_stacktrace=1
+
+jobs:
+  posix:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: gcc-4.8
+            cxxstd: "11"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: g++-4.8-multilib
+            address-model: 32,64
+          - toolset: gcc-5
+            cxxstd: "11,14,1z"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: g++-5-multilib
+            address-model: 32,64
+          - toolset: gcc-6
+            cxxstd: "11,14,1z"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: g++-6-multilib
+            address-model: 32,64
+          - toolset: gcc-7
+            cxxstd: "11,14,17"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: g++-7-multilib
+            address-model: 32,64
+          - toolset: gcc-8
+            cxxstd: "11,14,17,2a"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: g++-8-multilib
+            address-model: 32,64
+          - toolset: gcc-9
+            cxxstd: "11,14,17,2a"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: g++-9-multilib
+            address-model: 32,64
+          - toolset: gcc-10
+            cxxstd: "11,14,17,2a"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: g++-10-multilib
+            address-model: 32,64
+          - toolset: gcc-11
+            cxxstd: "11,14,17,20"
+            os: ubuntu-22.04
+            install: g++-11-multilib
+            address-model: 32,64
+          - toolset: gcc-12
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-22.04
+            install: g++-12-multilib
+            address-model: 32,64
+          - toolset: gcc-13
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-latest
+            container: ubuntu:24.04
+            install: g++-13-multilib
+            address-model: 32,64
+          - toolset: gcc-14
+            cxxstd: "11,14,17,20,23,2c"
+            os: ubuntu-latest
+            container: ubuntu:24.04
+            install: g++-14-multilib
+            address-model: 32,64
+          - toolset: gcc-15
+            cxxstd: "11,14,17,20,23,2c"
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install: g++-15-multilib
+            address-model: 32,64
+          - toolset: clang
+            compiler: clang++-3.9
+            cxxstd: "11,14"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: clang-3.9
+          - toolset: clang
+            compiler: clang++-4.0
+            cxxstd: "11,14"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: clang-4.0
+          - toolset: clang
+            compiler: clang++-5.0
+            cxxstd: "11,14,1z"
+            container: ubuntu:18.04
+            os: ubuntu-latest
+            install: clang-5.0
+          - toolset: clang
+            compiler: clang++-6.0
+            cxxstd: "11,14,17"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-6.0
+          - toolset: clang
+            compiler: clang++-7
+            cxxstd: "11,14,17"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-7
+          - toolset: clang
+            compiler: clang++-8
+            cxxstd: "11,14,17"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-8
+          - toolset: clang
+            compiler: clang++-9
+            cxxstd: "11,14,17,2a"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-9
+          - toolset: clang
+            compiler: clang++-10
+            cxxstd: "11,14,17,2a"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-10
+          - toolset: clang
+            compiler: clang++-11
+            cxxstd: "11,14,17,2a"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-11
+          - toolset: clang
+            compiler: clang++-12
+            cxxstd: "11,14,17,20"
+            container: ubuntu:20.04
+            os: ubuntu-latest
+            install: clang-12
+          - toolset: clang
+            compiler: clang++-13
+            cxxstd: "11,14,17,20,2b"
+            container: ubuntu:22.04
+            os: ubuntu-latest
+            install: clang-13
+          - toolset: clang
+            compiler: clang++-14
+            cxxstd: "11,14,17,20,2b"
+            container: ubuntu:22.04
+            os: ubuntu-latest
+            install: clang-14
+          - toolset: clang
+            compiler: clang++-15
+            cxxstd: "11,14,17,20,2b"
+            container: ubuntu:22.04
+            os: ubuntu-latest
+            install: clang-15
+          - toolset: clang
+            compiler: clang++-16
+            cxxstd: "11,14,17,20,2b"
+            container: ubuntu:24.04
+            os: ubuntu-latest
+            install: clang-16
+          - toolset: clang
+            compiler: clang++-17
+            cxxstd: "11,14,17,20,2b"
+            container: ubuntu:24.04
+            os: ubuntu-latest
+            install: clang-17
+          - toolset: clang
+            compiler: clang++-18
+            cxxstd: "11,14,17,20,2b"
+            container: ubuntu:24.04
+            os: ubuntu-latest
+            install: clang-18
+          - toolset: clang
+            compiler: clang++-19
+            cxxstd: "11,14,17,20,23,2c"
+            container: ubuntu:24.04
+            os: ubuntu-latest
+            install: clang-19
+          - toolset: clang
+            compiler: clang++-20
+            cxxstd: "11,14,17,20,23,2c"
+            container: ubuntu:24.04
+            os: ubuntu-latest
+            install: clang-20
+          - toolset: clang
+            compiler: clang++-21
+            cxxstd: "11,14,17,20,23,2c"
+            container: ubuntu:25.10
+            os: ubuntu-latest
+            install: clang-21
+          - toolset: clang
+            os: macos-14
+            cxxstd: "11,14,17,20,2b"
+          - toolset: clang
+            os: macos-15
+            cxxstd: "11,14,17,20,23,2c"
+          - toolset: clang
+            os: macos-26
+            cxxstd: "11,14,17,20,23,2c"
+
+    runs-on: ${{matrix.os}}
+
+    container:
+      image: ${{matrix.container}}
+      volumes:
+        - /node20217:/node20217:rw,rshared
+        - ${{ startsWith(matrix.container, 'ubuntu:1') && '/node20217:/__e/node20:ro,rshared' || ' ' }}
+
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+      - name: Setup container environment
+        if: matrix.container
+        run: |
+          apt-get update
+          apt-get -y install sudo python3 git g++ curl xz-utils
+
+      - name: Install nodejs20glibc2.17
+        if: ${{ startsWith( matrix.container, 'ubuntu:1' ) }}
+        run: |
+          curl -LO https://archives.boost.io/misc/node/node-v20.9.0-linux-x64-glibc-217.tar.xz
+          tar -xf node-v20.9.0-linux-x64-glibc-217.tar.xz --strip-components 1 -C /node20217
+          ldd /__e/node20/bin/node
+
+      - uses: actions/checkout@v4
+
+      - name: Install packages
+        if: matrix.install
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install ${{matrix.install}}
+
+      - name: Setup Boost
+        run: |
+          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+          LIBRARY=${GITHUB_REPOSITORY#*/}
+          echo LIBRARY: $LIBRARY
+          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+          echo GITHUB_REF: $GITHUB_REF
+          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+          REF=${REF#refs/heads/}
+          echo REF: $REF
+          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
+          echo BOOST_BRANCH: $BOOST_BRANCH
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          git submodule update --init tools/boostdep
+          python3 tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+          ./bootstrap.sh
+          ./b2 -d0 headers
+
+      - name: Create user-config.jam
+        if: matrix.compiler
+        run: |
+          echo "using ${{matrix.toolset}} : : ${{matrix.compiler}} ;" > ~/user-config.jam
+
+      - name: Run tests
+        run: |
+          cd ../boost-root
+          ./b2 -j3 libs/$LIBRARY/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} ${ADDRMD:+address-model=$ADDRMD} variant=debug,release
+
+  windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: msvc-14.3
+            cxxstd: "14,17,20,latest"
+            addrmd: 32,64
+            os: windows-2022
+          - toolset: clang-win
+            cxxstd: "14,17,20,latest"
+            addrmd: 32,64
+            os: windows-2022
+          - toolset: gcc
+            cxxstd: "11,14,17,2a"
+            addrmd: 64
+            os: windows-2022
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" %LIBRARY%
+          cmd /c bootstrap
+          b2 -d0 headers
+
+      - name: Run tests
+        shell: cmd
+        run: |
+          cd ../boost-root
+          b2 -j3 libs/%LIBRARY%/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} address-model=${{matrix.addrmd}} variant=debug,release embed-manifest-via=linker
+
+  posix-cmake-subdir:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-22.04
+          - os: ubuntu-24.04
+          - os: macos-14
+          - os: macos-15
+          - os: macos-26
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install packages
+        if: matrix.install
+        run: sudo apt-get -y install ${{matrix.install}}
+
+      - name: Setup Boost
+        run: |
+          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+          LIBRARY=${GITHUB_REPOSITORY#*/}
+          echo LIBRARY: $LIBRARY
+          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+          echo GITHUB_REF: $GITHUB_REF
+          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+          REF=${REF#refs/heads/}
+          echo REF: $REF
+          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
+          echo BOOST_BRANCH: $BOOST_BRANCH
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+
+      - name: Use library with add_subdirectory
+        run: |
+          cd ../boost-root/libs/$LIBRARY/test/cmake_subdir_test
+          mkdir __build__ && cd __build__
+          cmake ..
+          cmake --build .
+          ctest --output-on-failure --no-tests=error
+
+  posix-cmake-install:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-22.04
+          - os: ubuntu-24.04
+          - os: macos-14
+          - os: macos-15
+          - os: macos-26
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install packages
+        if: matrix.install
+        run: sudo apt-get -y install ${{matrix.install}}
+
+      - name: Setup Boost
+        run: |
+          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+          LIBRARY=${GITHUB_REPOSITORY#*/}
+          echo LIBRARY: $LIBRARY
+          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+          echo GITHUB_REF: $GITHUB_REF
+          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+          REF=${REF#refs/heads/}
+          echo REF: $REF
+          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
+          echo BOOST_BRANCH: $BOOST_BRANCH
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+
+      - name: Configure
+        run: |
+          cd ../boost-root
+          mkdir __build__ && cd __build__
+          cmake -DBOOST_INCLUDE_LIBRARIES=$LIBRARY -DCMAKE_INSTALL_PREFIX=~/.local ..
+
+      - name: Install
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target install
+
+      - name: Use the installed library
+        run: |
+          cd ../boost-root/libs/$LIBRARY/test/cmake_install_test && mkdir __build__ && cd __build__
+          cmake -DCMAKE_INSTALL_PREFIX=~/.local ..
+          cmake --build .
+          ctest --output-on-failure --no-tests=error
+
+  posix-cmake-test:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-22.04
+          - os: ubuntu-24.04
+          - os: macos-14
+          - os: macos-15
+          - os: macos-26
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install packages
+        if: matrix.install
+        run: sudo apt-get -y install ${{matrix.install}}
+
+      - name: Setup Boost
+        run: |
+          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+          LIBRARY=${GITHUB_REPOSITORY#*/}
+          echo LIBRARY: $LIBRARY
+          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+          echo GITHUB_REF: $GITHUB_REF
+          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+          REF=${REF#refs/heads/}
+          echo REF: $REF
+          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
+          echo BOOST_BRANCH: $BOOST_BRANCH
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+
+      - name: Configure
+        run: |
+          cd ../boost-root
+          mkdir __build__ && cd __build__
+          cmake -DBOOST_INCLUDE_LIBRARIES=$LIBRARY -DBUILD_TESTING=ON ..
+
+      - name: Build tests
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target tests
+
+      - name: Run tests
+        run: |
+          cd ../boost-root/__build__
+          ctest --output-on-failure --no-tests=error
+
+  windows-cmake-subdir:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: windows-latest
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" %LIBRARY%
+
+      - name: Use library with add_subdirectory (Debug)
+        shell: cmd
+        run: |
+          cd ../boost-root/libs/%LIBRARY%/test/cmake_subdir_test
+          mkdir __build__ && cd __build__
+          cmake ..
+          cmake --build . --config Debug
+          ctest --output-on-failure --no-tests=error -C Debug
+
+      - name: Use library with add_subdirectory (Release)
+        shell: cmd
+        run: |
+          cd ../boost-root/libs/%LIBRARY%/test/cmake_subdir_test/__build__
+          cmake --build . --config Release
+          ctest --output-on-failure --no-tests=error -C Release
+
+  windows-cmake-install:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: windows-latest
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" %LIBRARY%
+
+      - name: Configure
+        shell: cmd
+        run: |
+          cd ../boost-root
+          mkdir __build__ && cd __build__
+          cmake -DBOOST_INCLUDE_LIBRARIES=%LIBRARY% -DCMAKE_INSTALL_PREFIX=C:/cmake-prefix ..
+
+      - name: Install (Debug)
+        shell: cmd
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target install --config Debug
+
+      - name: Install (Release)
+        shell: cmd
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target install --config Release
+
+      - name: Use the installed library (Debug)
+        shell: cmd
+        run: |
+          cd ../boost-root/libs/%LIBRARY%/test/cmake_install_test && mkdir __build__ && cd __build__
+          cmake -DCMAKE_INSTALL_PREFIX=C:/cmake-prefix ..
+          cmake --build . --config Debug
+          ctest --output-on-failure --no-tests=error -C Debug
+
+      - name: Use the installed library (Release)
+        shell: cmd
+        run: |
+          cd ../boost-root/libs/%LIBRARY%/test/cmake_install_test/__build__
+          cmake --build . --config Release
+          ctest --output-on-failure --no-tests=error -C Release
+
+  windows-cmake-test:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: windows-latest
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" %LIBRARY%
+
+      - name: Configure
+        shell: cmd
+        run: |
+          cd ../boost-root
+          mkdir __build__ && cd __build__
+          cmake -DBOOST_INCLUDE_LIBRARIES=%LIBRARY% -DBUILD_TESTING=ON ..
+
+      - name: Build tests (Debug)
+        shell: cmd
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target tests --config Debug
+
+      - name: Run tests (Debug)
+        shell: cmd
+        run: |
+          cd ../boost-root/__build__
+          ctest --output-on-failure --no-tests=error -C Debug
+
+      - name: Build tests (Release)
+        shell: cmd
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target tests --config Release
+
+      - name: Run tests (Release)
+        shell: cmd
+        run: |
+          cd ../boost-root/__build__
+          ctest --output-on-failure --no-tests=error -C Release

.travis.yml

@@ -0,0 +1,327 @@
+# Copyright 2016-2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+language: cpp
+
+dist: xenial
+
+branches:
+  only:
+    - master
+    - develop
+    - /feature\/.*/
+
+env:
+  matrix:
+    - BOGUS_JOB=true
+
+matrix:
+
+  exclude:
+    - env: BOGUS_JOB=true
+
+  include:
+    - os: linux
+      compiler: g++
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11
+
+    - os: linux
+      compiler: g++-4.4
+      env: TOOLSET=gcc COMPILER=g++-4.4 CXXSTD=98
+      addons:
+        apt:
+          packages:
+            - g++-4.4
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.6
+      env: TOOLSET=gcc COMPILER=g++-4.6 CXXSTD=03,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.7
+      env: TOOLSET=gcc COMPILER=g++-4.7 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.8
+      env: TOOLSET=gcc COMPILER=g++-4.8 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.8
+          sources:
+            - ubuntu-toolchain-r-test
+    - os: linux
+      compiler: g++-4.9
+      env: TOOLSET=gcc COMPILER=g++-4.9 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-5
+      env: TOOLSET=gcc COMPILER=g++-5 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - g++-5
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-6
+      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      dist: trusty
+      compiler: g++-7
+      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17
+      addons:
+        apt:
+          packages:
+            - g++-7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-8
+      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - g++-8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-9
+      env: TOOLSET=gcc COMPILER=g++-9 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - g++-9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
+
+    - os: linux
+      dist: trusty
+      compiler: /usr/bin/clang++
+      env: TOOLSET=clang COMPILER=/usr/bin/clang++ CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.3
+
+    - os: linux
+      dist: trusty
+      compiler: /usr/bin/clang++
+      env: TOOLSET=clang COMPILER=/usr/bin/clang++ CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.4
+
+    - os: linux
+      compiler: clang++-3.5
+      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.5
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-3.6
+      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-3.7
+      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-3.8
+      env: TOOLSET=clang COMPILER=clang++-3.8 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-3.9
+      env: TOOLSET=clang COMPILER=clang++-3.9 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-4.0
+      env: TOOLSET=clang COMPILER=clang++-4.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-4.0
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-5.0
+      env: TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-5.0
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-6.0
+      env: TOOLSET=clang COMPILER=clang++-6.0 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-6.0
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++-7
+      env: TOOLSET=clang COMPILER=clang++-7 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-7
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-7
+
+    - os: linux
+      compiler: clang++-8
+      env: TOOLSET=clang COMPILER=clang++-8 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-8
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-8
+
+    - os: linux
+      compiler: clang++-9
+      env: TOOLSET=clang COMPILER=clang++-9 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-9
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
+    - os: linux
+      dist: trusty
+      compiler: clang++-libc++
+      env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - libc++-dev
+
+    - os: linux
+      env: CMAKE=1
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake -DBUILD_TESTING=ON -DBOOST_INCLUDE_LIBRARIES=static_assert ..
+        - cmake --build . --target tests
+        - ctest --output-on-failure
+
+    - os: linux
+      env: CMAKE_SUBDIR=1
+      install:
+        - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+        - git clone -b $BOOST_BRANCH https://github.com/boostorg/config.git ../config
+      script:
+        - cd test/cmake_subdir_test && mkdir __build__ && cd __build__
+        - cmake ..
+        - cmake --build .
+        - cmake --build . --target check
+
+    - os: linux
+      env: CMAKE_INSTALL=1
+      script:
+        - pip install --user cmake
+        - mkdir __build__ && cd __build__
+        - cmake -DBOOST_INCLUDE_LIBRARIES=static_assert -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake --build . --target install
+        - cd ../libs/static_assert/test/cmake_install_test && mkdir __build__ && cd __build__
+        - cmake -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake --build .
+        - cmake --build . --target check
+
+    - os: osx
+      compiler: clang++
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
+
+install:
+  - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+  - cd ..
+  - git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule update --init tools/boostdep
+  - cp -r $TRAVIS_BUILD_DIR/* libs/static_assert
+  - python tools/boostdep/depinst/depinst.py static_assert
+  - ./bootstrap.sh
+  - ./b2 headers
+
+script:
+  - |-
+    echo "using $TOOLSET : : $COMPILER ;" > ~/user-config.jam
+  - ./b2 -j 3 libs/static_assert/test toolset=$TOOLSET cxxstd=$CXXSTD
+
+notifications:
+  email:
+    on_success: always

CMakeLists.txt

@@ -0,0 +1,28 @@
+# Copyright 2018 Mike Dev
+# Copyright 2019, 2025 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# https://www.boost.org/LICENSE_1_0.txt
+
+# We support CMake 3.5, but prefer 3.31 policies and behavior
+cmake_minimum_required(VERSION 3.5...3.31)
+
+project(boost_static_assert VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+
+add_library(boost_static_assert INTERFACE)
+add_library(Boost::static_assert ALIAS boost_static_assert)
+
+target_include_directories(boost_static_assert INTERFACE include)
+
+target_link_libraries(boost_static_assert
+  INTERFACE
+    Boost::config
+)
+
+# BUILD_TESTING is the standard CTest variable that enables testing
+
+if(BUILD_TESTING)
+
+  add_subdirectory(test)
+  add_subdirectory(example)
+
+endif()

Jamfile

@@ -1,22 +0,0 @@
-subproject libs/static_assert ;
-# bring in the rules for testing
-SEARCH on testing.jam = $(BOOST_BUILD_PATH) ;
-include testing.jam ;
-
-test-suite static_assert :
-	[ run static_assert_test.cpp ]
-	[ run static_assert_example_1.cpp ]
-	[ run static_assert_example_2.cpp ]
-	[ run static_assert_example_3.cpp ]
-	[ compile-fail static_assert_test_fail_1.cpp ]
-	[ compile-fail static_assert_test_fail_2.cpp ]
-	[ compile-fail static_assert_test_fail_3.cpp ]
-	[ compile-fail static_assert_test_fail_4.cpp ]
-	[ compile-fail static_assert_test_fail_5.cpp ]
-	[ compile-fail static_assert_test_fail_6.cpp ]
-	[ compile-fail static_assert_test_fail_7.cpp ]
-	[ compile-fail static_assert_test_fail_8.cpp ]
-;
-
-
-

README.md

@@ -0,0 +1,7 @@
+Boost StaticAssert Library
+============================
+
+The Boost StaticAssert library provides static assertions for C++, this library is the ancestor to C++ native static_assert's and 
+can be used on older compilers which don't have that feature.
+
+This library has been merged into [Boost.Config](https://github.com/boostorg/config). The full documentation is available on [boost.org](https://www.boost.org/doc/libs/release/libs/config).

build.jam

@@ -0,0 +1,23 @@
+# Copyright René Ferdinand Rivera Morell 2023-2024
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+require-b2 5.2 ;
+
+constant boost_dependencies :
+    /boost/config//boost_config ;
+
+project /boost/static_assert
+    : common-requirements
+        <include>include
+    ;
+
+explicit
+    [ alias boost_static_assert : : : : <library>$(boost_dependencies) ]
+    [ alias all : boost_static_assert example test ]
+    ;
+
+call-if : boost-library static_assert
+    ;
+

example/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+include(BoostTestJamfile OPTIONAL RESULT_VARIABLE HAVE_BOOST_TEST)
+
+if(HAVE_BOOST_TEST)
+
+boost_test_jamfile(FILE Jamfile.v2 LINK_LIBRARIES Boost::static_assert Boost::type_traits)
+
+endif()

example/Jamfile.v2

@@ -0,0 +1,15 @@
+# copyright John Maddock 2003
+# Use, modification and distribution are subject to the
+# Boost Software License, Version 1.0. (See accompanying file
+# LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# bring in the rules for testing
+import testing ;
+
+project : requirements
+    <library>/boost/type_traits//boost_type_traits
+    ;
+
+#run static_assert_example_1.cpp ;
+run static_assert_example_2.cpp ;
+run static_assert_example_3.cpp ;

example/static_assert_example_1.cpp

@@ -1,13 +1,13 @@
 //  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
 #include <climits>
 #include <cwchar>
+#include <limits>
 #include <boost/static_assert.hpp>
 
 #if !defined(WCHAR_MIN)
@@ -17,7 +17,7 @@
 namespace boost{
 
 namespace my_conditions {
-BOOST_STATIC_ASSERT(sizeof(int) * CHAR_BIT >= 32);
+BOOST_STATIC_ASSERT(std::numeric_limits<int>::digits >= 32);
 BOOST_STATIC_ASSERT(WCHAR_MIN >= 0);
 
 } // namespace my_conditions
@@ -30,3 +30,5 @@ int main()
 }
 
 
+
+

example/static_assert_example_2.cpp

@@ -1,19 +1,18 @@
 //  (C) Copyright John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
+#include <boost/static_assert.hpp>
+#include <boost/type_traits.hpp>
 #include <iterator>
 #include <list>
 #include <deque>
-#include <boost/static_assert.hpp>
-#include <boost/type_traits.hpp>
 
 template <class RandomAccessIterator >
-RandomAccessIterator foo(RandomAccessIterator from, RandomAccessIterator to)
+RandomAccessIterator foo(RandomAccessIterator from, RandomAccessIterator /*to*/)
 {
    // this template can only be used with
    // random access iterators...
@@ -38,3 +37,4 @@ int main()
 
 
 
+

example/static_assert_example_3.cpp

@@ -1,12 +1,11 @@
 //  (C) Copyright John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
-#include <climits>
+#include <limits>
 #include <boost/limits.hpp>
 #include <boost/static_assert.hpp>
 
@@ -14,8 +13,8 @@ template <class UnsignedInt>
 class myclass
 {
 private:
-   BOOST_STATIC_ASSERT(sizeof(UnsignedInt) * CHAR_BIT >= 16);
+   BOOST_STATIC_ASSERT((std::numeric_limits<UnsignedInt>::digits >= 16)
-   BOOST_STATIC_ASSERT(std::numeric_limits<UnsignedInt>::is_specialized
+                        && std::numeric_limits<UnsignedInt>::is_specialized
                         && std::numeric_limits<UnsignedInt>::is_integer
                         && !std::numeric_limits<UnsignedInt>::is_signed);
 public:
@@ -30,3 +29,5 @@ int main()
 {
    return 0;
 }
+
+

include/boost/static_assert.hpp

@@ -1,91 +0,0 @@
-//  (C) Copyright John Maddock 2000.
-//  Permission to copy, use, modify, sell and
-//  distribute this software is granted provided this copyright notice appears
-//  in all copies. This software is provided "as is" without express or implied
-//  warranty, and with no claim as to its suitability for any purpose.
-
-//  See http://www.boost.org/libs/static_assert for documentation.
-
-/*
- Revision history:
-   02 August 2000
-      Initial version.
-*/
-
-#ifndef BOOST_STATIC_ASSERT_HPP
-#define BOOST_STATIC_ASSERT_HPP
-
-#include <boost/config.hpp>
-
-#ifdef __BORLANDC__
-//
-// workaround for buggy integral-constant expression support:
-#define BOOST_BUGGY_INTEGRAL_CONSTANT_EXPRESSIONS
-#endif
-
-namespace boost{
-
-// HP aCC cannot deal with missing names for template value parameters
-template <bool x> struct STATIC_ASSERTION_FAILURE;
-
-template <> struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; };
-
-// HP aCC cannot deal with missing names for template value parameters
-template<int x> struct static_assert_test{};
-
-}
-
-//
-// Implicit instantiation requires that all member declarations be
-// instantiated, but that the definitions are *not* instantiated.
-//
-// It's not particularly clear how this applies to enum's or typedefs;
-// both are described as declarations [7.1.3] and [7.2] in the standard,
-// however some compilers use "delayed evaluation" of one or more of
-// these when implicitly instantiating templates.  We use typedef declarations
-// by default, but try defining BOOST_USE_ENUM_STATIC_ASSERT if the enum
-// version gets better results from your compiler...
-//
-// Implementation:
-// Both of these versions rely on sizeof(incomplete_type) generating an error
-// message containing the name of the incomplete type.  We use
-// "STATIC_ASSERTION_FAILURE" as the type name here to generate
-// an eye catching error message.  The result of the sizeof expression is either
-// used as an enum initialiser, or as a template argument depending which version
-// is in use...
-// Note that the argument to the assert is explicitly cast to bool using old-
-// style casts: too many compilers currently have problems with static_cast
-// when used inside integral constant expressions.
-//
-#if !defined(BOOST_BUGGY_INTEGRAL_CONSTANT_EXPRESSIONS) && !defined(__MWERKS__)
-
-#if defined(BOOST_MSVC)
-// __LINE__ macro broken when -ZI is used see Q199057
-// fortunately MSVC ignores duplicate typedef's.
-#define BOOST_STATIC_ASSERT( B ) \
-   typedef ::boost::static_assert_test<\
-      sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >)\
-      > boost_static_assert_typedef_
-#elif defined(BOOST_INTEL_CXX_VERSION)
-// agurt 15/sep/02: a special care is needed to force Intel C++ issue an error 
-// instead of warning in case of failure
-# define BOOST_STATIC_ASSERT( B ) \
-    typedef char BOOST_JOIN(boost_static_assert_typedef_, __LINE__) \
-        [ ::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >::value ]
-#else
-// generic version
-#define BOOST_STATIC_ASSERT( B ) \
-   typedef ::boost::static_assert_test<\
-      sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >)>\
-         BOOST_JOIN(boost_static_assert_typedef_, __LINE__)
-#endif
-
-#else
-// alternative enum based implementation:
-#define BOOST_STATIC_ASSERT( B ) \
-   enum { BOOST_JOIN(boost_static_assert_enum_, __LINE__) \
-      = sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >) }
-#endif
-
-
-#endif // BOOST_STATIC_ASSERT_HPP

include/boost/static_assert/detail/backward.hpp

@@ -0,0 +1,12 @@
+// Copyright 2025 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+// 
+// This header is unused and is only present for backward compatibility.
+// Without it, StaticAssert would be the only library without an include/
+// directory, and this breaks third-party installation scripts and logic.
+
+// Introduce an artificial dependency on Config, such that libraries that
+// link to StaticAssert depend on the new location of boost/static_assert.hpp
+
+#include <boost/config.hpp>

index.html

@@ -1,9 +1,15 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
-<head>
+  <head>
-<meta http-equiv="refresh" content="0; URL=static_assert.htm">
+    <meta http-equiv="refresh" content="0; URL=../config/index.html">
-</head>
+  </head>
-<body>
+  <body>
-Automatic redirection failed, please go to
+    Automatic redirection failed, please go to
-<a href="static_assert.htm">static_assert.htm</a>.
+    <a href="../config/index.html">../config/index.html</a>.
-</body>
+      <P>Copyright&nbsp;John Maddock 2006</P>
+      <P>Distributed under the Boost Software License, Version 1.0. (See accompanying file <A href="../../LICENSE_1_0.txt">
+            LICENSE_1_0.txt</A> or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</A>).</P>
+  </body>
 </html>
+
+

meta/libraries.json

@@ -0,0 +1,17 @@
+{
+    "key": "static_assert",
+    "name": "Static Assert",
+    "authors": [
+        "John Maddock"
+    ],
+    "description": "Static assertions (compile time assertions). Merged into Boost.Config.",
+    "category": [
+        "Correctness",
+        "Generic",
+        "Metaprogramming"
+    ],
+    "maintainers": [
+        "John Maddock <john -at- johnmaddock.co.uk>"
+    ],
+    "cxxstd": "03"
+}

static_assert.htm

@@ -1,279 +1,15 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
-
+  <head>
-<head>
+    <meta http-equiv="refresh" content="0; URL=../config/index.html">
-<meta http-equiv="Content-Type"
+  </head>
-content="text/html; charset=iso-8859-1">
+  <body>
-<meta name="Template"
+    Automatic redirection failed, please go to
-content="C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\html.dot">
+    <a href="../config/index.html">../config/index.html</a>.
-<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
+      <P>Copyright&nbsp;John Maddock 2006</P>
-<title>static assertions</title>
+      <P>Distributed under the Boost Software License, Version 1.0. (See accompanying file <A href="../../LICENSE_1_0.txt">
-</head>
+            LICENSE_1_0.txt</A> or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</A>).</P>
-
+  </body>
-<body bgcolor="#FFFFFF" text="#000000" link="#0000FF"
-vlink="#800080">
-
-<h1><img src="../../c++boost.gif" width="276" height="86">Header
-&lt;<a href="../../boost/static_assert.hpp">boost/static_assert.hpp</a>&gt;</h1>
-
-<p>The header &lt;boost/static_assert.hpp&gt; supplies a single
-macro BOOST_STATIC_ASSERT(x), which generates a compile time
-error message if the <a
-href="../../more/int_const_guidelines.htm">integral-constant-expression</a>
-<i>x</i> is not true. In other words it is the compile time
-equivalent of the assert macro; this is sometimes known as a
-&quot;compile-time-assertion&quot;, but will be called a &quot;static
-assertion&quot; throughout these docs. Note that if the condition
-is true, then the macro will generate neither code nor data - and
-the macro can also be used at either namespace, class or function
-scope. When used in a template, the static assertion will be
-evaluated at the time the template is instantiated; this is
-particularly useful for validating template parameters. </p>
-
-<p>One of the aims of BOOST_STATIC_ASSERT is to generate readable
-error messages. These immediately tell the user that a library is
-being used in a manner that is not supported. While error
-messages obviously differ from compiler to compiler, but you
-should see something like: </p>
-
-<pre>Illegal use of COMPILE_TIME_ASSERTION_FAILURE&lt;false&gt;</pre>
-
-<p>Which is intended to at least catch the eye!</p>
-
-<p>You can use BOOST_STATIC_ASSERT at any place where you can
-place a declaration, that is at <a href="#class">class</a>, <a
-href="#function">function</a> or <a href="#namespace">namespace</a>
-scope, this is illustrated by the following examples:</p>
-
-<h3><a name="namespace"></a>Use at namespace scope.</h3>
-
-<p>The macro can be used at namespace scope, if there is some
-requirement must always be true; generally this means some
-platform specific requirement. Suppose we require that <b>int</b>
-be at least a 32-bit integral type, and that <b>wchar_t</b> be an
-unsigned type. We can verify this at compile time as follows:</p>
-
-<pre>#include &lt;climits&gt;
-#include &lt;cwchar&gt;
-#include &lt;boost/static_assert.hpp&gt;
-
-namespace my_conditions {
-
-BOOST_STATIC_ASSERT(sizeof(int) * CHAR_BIT &gt;= 32);
-BOOST_STATIC_ASSERT(WCHAR_MIN &gt;= 0);
-
-} // namespace my_conditions
-</pre>
-
-<p>The use of the namespace <i>my_conditions</i> here requires
-some comment. The macro BOOST_STATIC_ASSERT works by generating
-an <strong>typedef</strong> declaration, and since the typedef
-must have a name, the macro generates one automatically by
-mangling a stub name with the value of __LINE__. When
-BOOST_STATIC_ASSERT is used at either class or function scope
-then each use of BOOST_STATIC_ASSERT is guaranteed to produce a
-name unique to that scope (provided you only use the macro once
-on each line). However when used in a header at namespace scope,
-that namespace can be continued over multiple headers, each of
-which may have their own static assertions, and on the &quot;same&quot;
-lines, thereby generating duplicate declarations. In theory the
-compiler should silently ignore duplicate typedef declarations,
-however many do not do so (and even if they do they are entitled
-to emit warnings in such cases). To avoid potential problems, if
-you use BOOST_STATIC_ASSERT in a header and at namespace scope,
-then enclose them in a namespace unique to that header.</p>
-
-<h3><a name="function"></a>Use at function scope</h3>
-
-<p>The macro is typically used at function scope inside template
-functions, when the template arguments need checking. Imagine
-that we have an iterator-based algorithm that requires random
-access iterators. If the algorithm is instantiated with iterators
-that do not meet our requirements then an error will be generated
-eventually, but this may be nested deep inside several templates,
-making it hard for the user to determine what went wrong. One
-option is to add a static assertion at the top level of the
-template, in that case if the condition is not met, then an error
-will be generated in a way that makes it reasonably obvious to
-the user that the template is being misused.</p>
-
-<pre>#include &lt;iterator&gt;
-#include &lt;boost/static_assert.hpp&gt;
-#include &lt;boost/type_traits.hpp&gt;
-
-template &lt;class RandomAccessIterator &gt;
-RandomAccessIterator foo(RandomAccessIterator from, RandomAccessIterator to)
-{
-   // this template can only be used with
-   // random access iterators...
-   typedef typename std::iterator_traits&lt; RandomAccessIterator &gt;::iterator_category cat;
-   BOOST_STATIC_ASSERT((boost::is_convertible&lt;cat, const std::random_access_iterator_tag&amp;&gt;::value));
-   //
-   // detail goes here...
-   return from;
-}</pre>
-
-<p>A couple of footnotes are in order here: the extra set of
-parenthesis around the assert, is to prevent the comma inside the
-is_convertible template being interpreted by the preprocessor as
-a macro argument separator; the target type for is_convertible is
-a reference type, as some compilers have problems using
-is_convertible when the conversion is via a user defined
-constructor (in any case there is no guarantee that the iterator
-tag classes are copy-constructible).</p>
-
-<h3><a name="class"></a>Use at class scope</h3>
-
-<p>The macro is typically used inside classes that are templates.
-Suppose we have a template-class that requires an unsigned
-integral type with at least 16-bits of precision as a template
-argument, we can achieve this using something like this:</p>
-
-<pre>#include &lt;climits&gt;
-#include &lt;boost/static_assert.hpp&gt;
-
-template &lt;class UnsignedInt&gt;
-class myclass
-{
-private:
-   BOOST_STATIC_ASSERT(sizeof(UnsignedInt) * CHAR_BIT &gt;= 16);
-   BOOST_STATIC_ASSERT(std::numeric_limits&lt;UnsignedInt&gt;::is_specialized
-                        &amp;&amp; std::numeric_limits&lt;UnsignedInt&gt;::is_integer
-                        &amp;&amp; !std::numeric_limits&lt;UnsignedInt&gt;::is_signed);
-public:
-   /* details here */
-};
-</pre>
-
-<h3>How it works</h3>
-
-<p>BOOST_STATIC_ASSERT works as follows. There is class
-STATIC_ASSERTION_FAILURE which is defined as:</p>
-
-<pre>namespace boost{
-
-template &lt;bool&gt; struct STATIC_ASSERTION_FAILURE;
-
-template &lt;&gt; struct STATIC_ASSERTION_FAILURE&lt;true&gt;{};
-
-}</pre>
-
-<p>The key feature is that the error message triggered by the
-undefined expression sizeof(STATIC_ASSERTION_FAILURE&lt;0&gt;),
-tends to be consistent across a wide variety of compilers. The
-rest of the machinery of BOOST_STATIC_ASSERT is just a way to
-feed the sizeof expression into a typedef. The use of a macro
-here is somewhat ugly; however boost members have spent
-considerable effort trying to invent a static assert that avoided
-macros, all to no avail. The general conclusion was that the good
-of a static assert working at namespace, function, and class
-scope outweighed the ugliness of a macro.</p>
-
-<h3>Test Programs</h3>
-
-<p>The following test programs are provided with this library:</p>
-
-<table border="0" width="100%">
-    <tr>
-        <td width="33%"><i>Test Program</i></td>
-        <td width="33%"><i>Expected to Compile</i></td>
-        <td width="34%"><i>Description</i></td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test.cpp">static_assert_test.cpp</a></td>
-        <td width="33%">Yes</td>
-        <td width="34%">Illustrates usage, and should always
-        compile, really just tests compiler compatibility.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_example_1.cpp">static_assert_example_1.cpp</a></td>
-        <td width="33%">Platform dependent.</td>
-        <td width="34%">Namespace scope test program, may compile
-        depending upon the platform.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_example_2.cpp">static_assert_example_2.cpp</a></td>
-        <td width="33%">Yes</td>
-        <td width="34%">Function scope test program.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_example_3.cpp">static_assert_example_3.cpp</a></td>
-        <td width="33%">Yes</td>
-        <td width="34%">Class scope test program.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_1.cpp">static_assert_test_fail_1.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure at namespace scope.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_2.cpp">static_assert_test_fail_2.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure at non-template
-        function scope.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_3.cpp">static_assert_test_fail_3.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure at non-template class
-        scope.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_4.cpp">static_assert_test_fail_4.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure at non-template class
-        scope.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_5.cpp">static_assert_test_fail_5.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure at template class
-        scope.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_6.cpp">static_assert_test_fail_6.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure at template class
-        member function scope.</td>
-    </tr>
-    <tr>
-        <td width="33%"><a href="static_assert_test_fail_7.cpp">static_assert_test_fail_7.cpp</a></td>
-        <td width="33%">No</td>
-        <td width="34%">Illustrates failure of class scope
-        example.</td>
-    </tr>
-    <tr>
-        <td><a href="static_assert_test_fail_8.cpp">static_assert_test_fail_8.cpp</a></td>
-        <td>No</td>
-        <td>Illustrates failure of function scope example.</td>
-    </tr>
-    <tr>
-        <td><a href="static_assert_test_fail_9.cpp">static_assert_test_fail_9.cpp</a></td>
-        <td>No</td>
-        <td>Illustrates failure of function scope example (part 2).</td>
-    </tr>
-</table>
-
-<hr>
-
-<p>Revised 27th Nov 2000</p>
-
-<p>Documentation © Copyright John Maddock 2000. Permission to
-copy, use, modify, sell and distribute this document is granted
-provided this copyright notice appears in all copies. This
-document is provided &quot;as is&quot; without express or implied
-warranty, and with no claim as to its suitability for any purpose.</p>
-
-<p>Based on contributions by Steve Cleary and John Maddock.</p>
-
-<p>Maintained by <a href="mailto:John_Maddock@compuserve.com">John
-Maddock</a>, the latest version of this file can be found at <a
-href="http://www.boost.org/">www.boost.org</a>, and the boost
-discussion list at <a
-href="http://www.yahoogroups.com/list/boost">www.yahoogroups.com/list/boost</a>.
-</p>
-
-<p>&nbsp;</p>
-
-<p>&nbsp;</p>
-</body>
 </html>
+
+

static_assert_test_fail_1.cpp

@@ -1,21 +0,0 @@
-//  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
-//  distribute this software is granted provided this copyright notice appears
-//  in all copies. This software is provided "as is" without express or implied
-//  warranty, and with no claim as to its suitability for any purpose.
-
-//  See http://www.boost.org for most recent version including documentation.
-
-#include <boost/static_assert.hpp>
-
-//
-// all these tests should fail:
-//
-
-// Namespace scope
-BOOST_STATIC_ASSERT(sizeof(int) == sizeof(char)); // will not compile
-
-
-
-
-

static_assert_test_fail_2.cpp

@@ -1,23 +0,0 @@
-//  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
-//  distribute this software is granted provided this copyright notice appears
-//  in all copies. This software is provided "as is" without express or implied
-//  warranty, and with no claim as to its suitability for any purpose.
-
-//  See http://www.boost.org for most recent version including documentation.
-
-#include <boost/static_assert.hpp>
-
-//
-// all these tests should fail:
-//
-
-// Function (block) scope
-void f()
-{
-  BOOST_STATIC_ASSERT(sizeof(int) == sizeof(char)); // should not compile
-}
-
-
-
-

test/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+include(BoostTestJamfile OPTIONAL RESULT_VARIABLE HAVE_BOOST_TEST)
+
+if(HAVE_BOOST_TEST)
+
+boost_test_jamfile(FILE Jamfile.v2 LINK_LIBRARIES Boost::static_assert)
+
+endif()

test/Jamfile.v2

@@ -0,0 +1,25 @@
+# copyright John Maddock 2003
+# Use, modification and distribution are subject to the
+# Boost Software License, Version 1.0. (See accompanying file
+# LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# bring in the rules for testing
+import testing ;
+
+project : requirements
+    <library>/boost/type_traits//boost_type_traits
+    ;
+
+run static_assert_test.cpp ;
+compile-fail static_assert_test_fail_1.cpp ;
+compile-fail static_assert_test_fail_2.cpp ;
+compile-fail static_assert_test_fail_3.cpp ;
+compile-fail static_assert_test_fail_4.cpp ;
+compile-fail static_assert_test_fail_5.cpp ;
+compile-fail static_assert_test_fail_6.cpp ;
+compile-fail static_assert_test_fail_7.cpp ;
+compile-fail static_assert_test_fail_8.cpp ;
+compile-fail static_assert_test_fail_9.cpp ;
+compile-fail static_assert_test_fail_10.cpp ;
+
+build-project ../example ;

test/cmake_install_test/CMakeLists.txt

@@ -0,0 +1,17 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(cmake_install_test LANGUAGES CXX)
+
+find_package(boost_static_assert REQUIRED)
+
+add_executable(main main.cpp)
+target_link_libraries(main Boost::static_assert)
+
+enable_testing()
+add_test(NAME main COMMAND main)
+
+add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/cmake_install_test/main.cpp

@@ -0,0 +1,7 @@
+#include <boost/static_assert.hpp>
+
+int main()
+{
+    int const x = 5;
+    BOOST_STATIC_ASSERT( x > 4 );
+}

test/cmake_subdir_test/CMakeLists.txt

@@ -0,0 +1,18 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(cmake_subdir_test LANGUAGES CXX)
+
+add_subdirectory(../../../static_assert boostorg/static_assert)
+add_subdirectory(../../../config boostorg/config)
+
+add_executable(main main.cpp)
+target_link_libraries(main Boost::static_assert)
+
+enable_testing()
+add_test(NAME main COMMAND main)
+
+add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/cmake_subdir_test/main.cpp

@@ -0,0 +1,7 @@
+#include <boost/static_assert.hpp>
+
+int main()
+{
+    int const x = 5;
+    BOOST_STATIC_ASSERT( x > 4 );
+}

test/static_assert_test.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -17,12 +16,16 @@
 // Namespace scope
 BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
 BOOST_STATIC_ASSERT(sizeof(char) == 1);
+BOOST_STATIC_ASSERT_MSG(sizeof(int) >= sizeof(short), "msg1");
+BOOST_STATIC_ASSERT_MSG(sizeof(char) == 1, "msg2");
 
 // Function (block) scope
 void f()
 {
   BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
   BOOST_STATIC_ASSERT(sizeof(char) == 1);
+  BOOST_STATIC_ASSERT_MSG(sizeof(int) >= sizeof(short), "msg3");
+  BOOST_STATIC_ASSERT_MSG(sizeof(char) == 1, "msg4");
 }
 
 struct Bob
@@ -30,6 +33,8 @@ struct Bob
   private:  // can be in private, to avoid namespace pollution
     BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
     BOOST_STATIC_ASSERT(sizeof(char) == 1);
+    BOOST_STATIC_ASSERT_MSG(sizeof(int) >= sizeof(short), "msg5");
+    BOOST_STATIC_ASSERT_MSG(sizeof(char) == 1, "msg6");
   public:
 
   // Member function scope: provides access to member variables
@@ -37,9 +42,11 @@ struct Bob
   char c;
   int f()
   {
-#ifndef _MSC_VER // broken sizeof in VC6
+#if defined(_MSC_VER) && _MSC_VER < 1300 // broken sizeof in VC6
     BOOST_STATIC_ASSERT(sizeof(x) >= sizeof(short));
     BOOST_STATIC_ASSERT(sizeof(c) == 1);
+    BOOST_STATIC_ASSERT_MSG(sizeof(x) >= sizeof(short), "msg7");
+    BOOST_STATIC_ASSERT_MSG(sizeof(c) == 1, "msg8");
 #endif
     return x;
   }
@@ -51,8 +58,10 @@ struct Bob
 template <class Int, class Char>
 struct Bill
 {
+   BOOST_STATIC_CONSTANT(int, value = 1);
   private:  // can be in private, to avoid namespace pollution
     BOOST_STATIC_ASSERT(sizeof(Int) > sizeof(char));
+    BOOST_STATIC_ASSERT_MSG(sizeof(Int) > sizeof(char), "msg9");
   public:
 
   // Template member function scope: provides access to member variables
@@ -63,10 +72,12 @@ struct Bill
   {
     BOOST_STATIC_ASSERT(sizeof(Int) == sizeof(Int2));
     BOOST_STATIC_ASSERT(sizeof(Char) == sizeof(Char2));
+    BOOST_STATIC_ASSERT_MSG(sizeof(Int) == sizeof(Int2), "msg10");
+    BOOST_STATIC_ASSERT_MSG(sizeof(Char) == sizeof(Char2), "msg11");
   }
 };
 
-void test_Bill() // BOOST_CT_ASSERTs are not triggerred until instantiated
+void test_Bill() // BOOST_STATIC_ASSERTs are not triggerred until instantiated
 {
   Bill<int, char> z;
   //Bill<int, int> bad; // will not compile
@@ -79,8 +90,18 @@ void test_Bill() // BOOST_CT_ASSERTs are not triggerred until instantiated
 int main()
 { 
    test_Bill();
+   //
+   // Test variadic macro support:
+   //
+#ifndef BOOST_NO_CXX11_VARIADIC_MACROS
+   BOOST_STATIC_ASSERT(Bill<int, char>::value);
+#ifndef BOOST_NO_CXX11_STATIC_ASSERT
+   BOOST_STATIC_ASSERT_MSG(Bill<int, char>::value, "This is a message");
+#endif
+#endif
    return 0; 
 }
 
 
 
+

test/static_assert_test_fail_1.cpp

@@ -0,0 +1,23 @@
+//  (C) Copyright Steve Cleary & John Maddock 2000.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version including documentation.
+
+#include <boost/static_assert.hpp>
+
+//
+// all these tests should fail:
+//
+typedef char a1[2];
+typedef char a2[3];
+
+// Namespace scope
+BOOST_STATIC_ASSERT(sizeof(a1) == sizeof(a2)); // will not compile
+
+
+
+
+
+

test/static_assert_test_fail_10.cpp

@@ -0,0 +1,18 @@
+//~ Copyright 2005 Redshift Software, Inc.
+//~ Distributed under the Boost Software License, Version 1.0.
+//~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/static_assert.hpp>
+
+template <int N>
+int foo()
+{
+    BOOST_STATIC_ASSERT( N < 2 );
+    
+    return N;
+}
+
+int main()
+{
+    return foo<5>();
+}

test/static_assert_test_fail_2.cpp

@@ -0,0 +1,25 @@
+//  (C) Copyright Steve Cleary & John Maddock 2000.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version including documentation.
+
+#include <boost/static_assert.hpp>
+
+//
+// all these tests should fail:
+//
+typedef char a1[2];
+typedef char a2[3];
+
+// Function (block) scope
+void f()
+{
+  BOOST_STATIC_ASSERT(sizeof(a1) == sizeof(a2)); // should not compile
+}
+
+
+
+
+

test/static_assert_test_fail_3.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -11,11 +10,13 @@
 //
 // this tests should fail:
 //
+typedef char a1[2];
+typedef char a2[3];
 
 struct Bob
 {
   private:  // can be in private, to avoid namespace pollution
-    BOOST_STATIC_ASSERT(sizeof(int) == sizeof(char)); // will not compile
+    BOOST_STATIC_ASSERT(sizeof(a1) == sizeof(a2)); // will not compile
   public:
 
   // Member function scope: provides access to member variables
@@ -27,7 +28,6 @@ struct Bob
     BOOST_STATIC_ASSERT(sizeof(x) == 4);
     BOOST_STATIC_ASSERT(sizeof(c) == 1);
 #endif
-    //BOOST_STATIC_ASSERT((sizeof(x) == sizeof(c))); // should not compile
     return x;
   }
 };
@@ -36,3 +36,4 @@ struct Bob
 
 
 
+

test/static_assert_test_fail_4.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -19,7 +18,7 @@ struct Bob
   public:
 
   // Member function scope: provides access to member variables
-  int x;
+  char x[4];
   char c;
   int f()
   {
@@ -36,3 +35,4 @@ struct Bob
 
 
 
+

test/static_assert_test_fail_5.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -37,3 +36,4 @@ Bill<int, char> b;
 
 
 
+

test/static_assert_test_fail_6.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright Steve Cleary & John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -44,3 +43,4 @@ void foo()
 
 
 
+

test/static_assert_test_fail_7.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -29,3 +28,4 @@ int main()
 {
    return 0;
 }
+

test/static_assert_test_fail_8.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -24,6 +23,12 @@ RandomAccessIterator foo(RandomAccessIterator from, RandomAccessIterator)
    return from;
 }
 
+// ensure that delayed instantiation compilers like Comeau see the failure early
+// enough for "compile-fail" testing with the Boost.Build testing framework. (Greg Comeau)
+template
+std::list<int>::iterator
+   foo(std::list<int>::iterator, std::list<int>::iterator);
+
 int main()
 {
    std::deque<int> d;
@@ -36,3 +41,4 @@ int main()
 
  
 
+

test/static_assert_test_fail_9.cpp

@@ -1,8 +1,7 @@
 //  (C) Copyright John Maddock 2000.
-//  Permission to copy, use, modify, sell and
+//  Use, modification and distribution are subject to the 
-//  distribute this software is granted provided this copyright notice appears
+//  Boost Software License, Version 1.0. (See accompanying file 
-//  in all copies. This software is provided "as is" without express or implied
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//  warranty, and with no claim as to its suitability for any purpose.
 
 //  See http://www.boost.org for most recent version including documentation.
 
@@ -30,3 +29,4 @@ int main()
 {
    return 0;
 }
+