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Merge pull request #1 from iris-cpp/initial-x4
Add minimal implementation of config and type_traits
2 parents 157ebf5 + 621e948 commit 0a7c231

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‎.github/workflows/ci.yml‎

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# SPDX-License-Identifier: MIT
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name: CI
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on:
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pull_request:
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push:
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branches:
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- 'main'
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref }}
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cancel-in-progress: true
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env:
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IRIS_BUILD_JOBS: 4
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jobs:
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changes:
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runs-on: ubuntu-latest
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outputs:
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iris_component: ${{ steps.filter.outputs.changes }}
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steps:
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- uses: actions/checkout@v5
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- uses: dorny/paths-filter@v3
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id: filter
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with:
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filters: |
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iris:
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- '.github/workflows/*.yml'
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- 'CMakeLists.txt'
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- 'include/iris/**/*'
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- 'test/CMakeLists.txt'
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- 'test/**/*'
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build:
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name: "[${{ matrix.cpp_version.name }}] ${{ matrix.iris_component }} | ${{ matrix.compiler.toolset }}-${{ matrix.compiler.version }} (${{ matrix.build_type.name }}) @ ${{ matrix.os.name }}-${{ matrix.os.version }}"
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needs: changes
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if: ${{ needs.changes.outputs.iris_component != '[]' && needs.changes.outputs.iris_component != '' }}
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runs-on: ${{ matrix.os.name }}-${{ matrix.os.version }}
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strategy:
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fail-fast: false
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matrix:
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os:
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- name: ubuntu
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version: 24.04
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- name: windows
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version: 2022
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build_type:
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- name: Debug
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lowercase: debug
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- name: Release
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lowercase: release
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cpp_version:
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- name: C++23
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number: 23
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- name: C++26
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number: 26
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compiler:
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- name: GCC
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toolset: gcc
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version: 14
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executable: g++-14
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cxxflags: -fdiagnostics-color=always
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- name: Clang
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toolset: clang
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version: 21
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executable: clang++-21
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cxxflags: -stdlib=libc++ -fcolor-diagnostics
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- name: MSVC
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toolset: msvc
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version: 2022
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builder_additional_args: -- "-consoleLoggerParameters:ForceConsoleColor"
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executable: cl
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iris_component: ${{ fromJSON(needs.changes.outputs.iris_component) }}
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exclude:
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# Blacklist all invalid combinations of environments
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- os:
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name: windows
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compiler:
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name: GCC
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- os:
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name: windows
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compiler:
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name: Clang
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- os:
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name: ubuntu
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compiler:
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name: MSVC
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steps:
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- uses: actions/checkout@v5
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- name: Initialize Ubuntu
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if: matrix.os.name == 'ubuntu'
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run: |
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sudo echo "set man-db/auto-update false" | sudo debconf-communicate
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sudo dpkg-reconfigure man-db
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- name: Setup GCC
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if: matrix.compiler.toolset == 'gcc'
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run: |
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sudo apt-get update
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sudo apt-get install -y g++-${{ matrix.compiler.version }}
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- name: Setup Clang
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if: matrix.compiler.toolset == 'clang'
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run: |
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wget https://apt.llvm.org/llvm.sh
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chmod +x ./llvm.sh
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sudo ./llvm.sh ${{ matrix.compiler.version }}
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sudo apt-get install -y libc++-${{ matrix.compiler.version }}-dev libc++abi-${{ matrix.compiler.version }}-dev libunwind-${{ matrix.compiler.version }}-dev
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- uses: TheMrMilchmann/setup-msvc-dev@v3
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if: matrix.os.name == 'windows'
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with:
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arch: x64
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- name: Fetch Environment Info
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id: env-info
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shell: bash
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run: |
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set -e
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case "${{ matrix.compiler.toolset }}" in
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"gcc")
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COMPILER_FULL_VERSION=$(${{ matrix.compiler.executable }} -dumpfullversion -dumpversion)
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;;
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"clang")
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COMPILER_FULL_VERSION=$(${{ matrix.compiler.executable }} -dumpversion)
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;;
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"msvc")
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COMPILER_FULL_VERSION=$(powershell -NoProfile -Command "(Get-Command ${{ matrix.compiler.executable }}).FileVersionInfo.FileVersion")
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;;
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esac
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echo "COMPILER_FULL_VERSION=$COMPILER_FULL_VERSION"
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echo "compiler-full-version=$COMPILER_FULL_VERSION" >> "$GITHUB_OUTPUT"
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- name: Cache CMake Dependencies (restore)
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id: cache-deps
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uses: actions/cache/restore@v4
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with:
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key: deps-${{ matrix.os.name }}-${{ matrix.os.version }}-${{ matrix.compiler.toolset }}-${{ steps.env-info.outputs.compiler-full-version }}-${{ matrix.cpp_version.name }}-${{ matrix.build_type.name }}
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path: ${{ github.workspace }}/build/_deps
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# Adapt CMP0168; enable caching in CI
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# https://cmake.org/cmake/help/latest/module/FetchContent.html#variable:FETCHCONTENT_FULLY_DISCONNECTED
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- name: Setup Cached CMake Dependencies
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id: deps-info
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shell: bash
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run: |
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if [ "${{ steps.cache-deps.outputs.cache-hit }}" = "true" ]; then
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echo "IRIS_CMAKE_ARGS=-DFETCHCONTENT_FULLY_DISCONNECTED=ON" >> "$GITHUB_OUTPUT"
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else
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echo "IRIS_CMAKE_ARGS=" >> "$GITHUB_OUTPUT"
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fi
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- name: Configure
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shell: bash
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run: |
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set -xe
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cmake ${{ steps.deps-info.outputs.IRIS_CMAKE_ARGS }} -B build \
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-DCMAKE_CXX_COMPILER=${{ matrix.compiler.executable }} \
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-DCMAKE_CXX_FLAGS="${{ matrix.compiler.cxxflags }}" \
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-DCMAKE_CXX_STANDARD=${{ matrix.cpp_version.number }} \
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-DCMAKE_BUILD_TYPE=${{ matrix.build_type.name }} \
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-S .
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- name: Build Tests
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run: |
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cmake --build build --config ${{ matrix.build_type.name }} -j${{ env.IRIS_BUILD_JOBS }} ${{ matrix.compiler.builder_additional_args }}
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- name: Cache CMake Dependencies (save)
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if: steps.cache-deps.outputs.cache-hit != 'true'
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uses: actions/cache/save@v4
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with:
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key: ${{ steps.cache-deps.outputs.cache-primary-key }}
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path: ${{ github.workspace }}/build/_deps
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- name: Test
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env:
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CLICOLOR_FORCE: 1
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working-directory: ${{ github.workspace }}/build
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run: ctest --output-on-failure -C ${{ matrix.build_type.name }}

‎.gitignore‎

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.DS_Store
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/build*/
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‎CMakeLists.txt‎

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# SPDX-License-Identifier: MIT
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cmake_minimum_required(VERSION 3.30)
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if(DEFINED ENV{VCPKG_ROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
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set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake" CACHE STRING "")
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endif()
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project(iris VERSION 0.0.1 LANGUAGES CXX)
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# -----------------------------------------------------------------
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# Global settings
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# Handle with care, keep these to the ones that can't be
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# accomplished by target-specific settings.
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set(CMAKE_COLOR_DIAGNOSTICS ON)
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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option(IRIS_REMOVE_MINSIZEREL_CONFIG "Remove rarely used MinSizeRel config" ON)
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if(MSVC)
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if(IRIS_REMOVE_MINSIZEREL_CONFIG OR PROJECT_IS_TOP_LEVEL)
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list(REMOVE_ITEM CMAKE_CONFIGURATION_TYPES MinSizeRel)
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endif()
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endif()
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# -----------------------------------------------------------------
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# Create common base targets
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# Iris-specific common target
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add_library(_iris_cxx_common INTERFACE)
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set_target_properties(_iris_cxx_common PROPERTIES CXX_EXTENSIONS OFF)
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# -----------------------------------------------------------------
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# Create the main Iris target
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if(MSVC)
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# This needs to be `OBJECT` target to set correct `/std:` flags on IDE
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add_library(iris OBJECT EXCLUDE_FROM_ALL)
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set_target_properties(iris PROPERTIES LINKER_LANGUAGE CXX)
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target_sources(
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iris
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PRIVATE
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# "${PROJECT_SOURCE_DIR}/cpp.hint" # TODO
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# "${PROJECT_SOURCE_DIR}/iris.natvis" # TODO
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)
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target_link_libraries(iris PUBLIC _iris_cxx_common)
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else()
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add_library(iris INTERFACE)
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target_link_libraries(iris INTERFACE _iris_cxx_common)
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endif()
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add_library(Iris::Iris ALIAS iris)
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set_target_properties(iris PROPERTIES CXX_EXTENSIONS OFF)
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# -----------------------------------------------------------------
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# Configure C++ version
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#
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# Set minimal C++ version to `/std:c++XXpreview` and avoid `/std:c++latest`
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# if the user explicitly specifies `-DCMAKE_CXX_STANDARD=XX`.
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set(IRIS_CXX_VERSION_BEFORE_LATEST 23)
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set(IRIS_CXX_VERSION_LATEST 26)
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if(DEFINED CMAKE_CXX_STANDARD AND CMAKE_CXX_STANDARD LESS ${IRIS_CXX_VERSION_BEFORE_LATEST})
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message(FATAL_ERROR "Too old C++ version `${CMAKE_CXX_STANDARD}`; the minimal version supported by Iris is `${IRIS_CXX_VERSION_BEFORE_LATEST}`.")
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endif()
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if(MSVC)
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if(CMAKE_CXX_STANDARD EQUAL ${IRIS_CXX_VERSION_BEFORE_LATEST})
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set(CMAKE_CXX${IRIS_CXX_VERSION_BEFORE_LATEST}_STANDARD_COMPILE_OPTION /std:c++${IRIS_CXX_VERSION_BEFORE_LATEST}preview)
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set(CMAKE_CXX${IRIS_CXX_VERSION_BEFORE_LATEST}_EXTENSION_COMPILE_OPTION /std:c++${IRIS_CXX_VERSION_BEFORE_LATEST}preview)
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target_compile_options(_iris_cxx_common INTERFACE /std:c++${IRIS_CXX_VERSION_BEFORE_LATEST}preview)
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else()
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# MSVC's CMake support does not provide the latest `cxx_std_XX`
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# feature until the very last stage of the implementation. Instead,
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# the feature number that is one version behind the latest usually
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# resolves to `/std:c++latest`.
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target_compile_features(_iris_cxx_common INTERFACE cxx_std_${IRIS_CXX_VERSION_BEFORE_LATEST})
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endif()
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else() # Non-MSVC
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if(DEFINED CMAKE_CXX_STANDARD)
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target_compile_features(_iris_cxx_common INTERFACE cxx_std_${CMAKE_CXX_STANDARD})
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else()
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target_compile_features(_iris_cxx_common INTERFACE cxx_std_${IRIS_CXX_VERSION_LATEST})
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endif()
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endif()
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unset(IRIS_CXX_VERSION_BEFORE_LATEST)
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unset(IRIS_CXX_FEATURE_BEFORE_LATEST)
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# -----------------------------------------------------------------
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# Advanced compile/link settings
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if(MSVC)
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# Don't set too strict flags for testing! They must go to `iris_cxx_test`.
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# ABI-dependent configurations MUST be set here.
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target_compile_definitions(
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_iris_cxx_common
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INTERFACE UNICODE _UNICODE
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)
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target_compile_options(
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_iris_cxx_common
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INTERFACE
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/EHsc /MP /utf-8 /Zc:preprocessor /permissive-
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# $<$<CONFIG:Debug,RelWithDebInfo>:/fsanitize=address> # TODO
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)
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target_link_options(
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_iris_cxx_common
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INTERFACE
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# $<$<CONFIG:Debug,RelWithDebInfo>:/INCREMENTAL:NO> # TODO
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)
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else()
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target_compile_options(
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_iris_cxx_common
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INTERFACE
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# $<$<CONFIG:Debug>:-fsanitize=undefined,address> # TODO
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)
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target_link_options(
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_iris_cxx_common
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INTERFACE
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# $<$<CONFIG:Debug>:-fsanitize=undefined,address> # TODO
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)
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endif()
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# -----------------------------------------------------------------
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# Configure Iris main target
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file(
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GLOB_RECURSE IRIS_HEADERS
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${PROJECT_SOURCE_DIR}/include/iris/*.hpp
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${PROJECT_SOURCE_DIR}/include/iris/*.ipp
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)
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target_sources(iris PRIVATE FILE_SET HEADERS TYPE HEADERS FILES ${IRIS_HEADERS})
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source_group(TREE ${PROJECT_SOURCE_DIR}/include/iris PREFIX iris FILES ${IRIS_HEADERS})
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target_include_directories(iris INTERFACE ${PROJECT_SOURCE_DIR}/include)
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# -----------------------------------------------------------------
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# Test
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if(PROJECT_IS_TOP_LEVEL)
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include(CTest)
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endif()
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if(BUILD_TESTING)
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add_subdirectory(test)
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if(MSVC AND PROJECT_IS_TOP_LEVEL)
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set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT Iris::Iris)
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endif()
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endif()

‎LICENSE‎

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MIT License
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3-
Copyright (c) 2026 iris-cpp
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Copyright (c) 2026 The Iris Project Contributors
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal

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