Add intel compiler to CI (#722)

* Update docs

* Add intel compiler to CI

* Add folder to boost root

* Use CMAKE

Author: mborland

.github/workflows/ci.yml

@@ -730,3 +730,69 @@ jobs:
 
       - name: Run tests
         run: ci/build.sh
+
+  intel:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [ intel ]
+        standard: [ c++20 ]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: '0'
+
+      - name: Intel Apt repository
+        timeout-minutes: 1
+        run: |
+          wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
+          sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
+          rm GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
+          echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
+          sudo apt-get update
+      - name: Install Intel oneAPI compilers
+        timeout-minutes: 5
+        run: sudo apt-get install -y intel-oneapi-compiler-fortran intel-oneapi-compiler-dpcpp-cpp
+
+      - name: Setup Intel oneAPI environment
+        run: |
+          source /opt/intel/oneapi/setvars.sh
+          printenv >> $GITHUB_ENV
+
+      - 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 $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          mkdir -p libs/$LIBRARY
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+
+      - name: Configure
+        run: |
+          cd ../boost-root
+          mkdir __build__ && cd __build__
+          cmake -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DBOOST_INCLUDE_LIBRARIES=$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

README.md

@@ -51,13 +51,13 @@ conan create decimal/conan --build missing
 
 # Supported Platforms
 
-Boost.Decimal is tested on Ubuntu (x86_64, s390x, and aarch64),
-macOS (x86_64, and Apple Silicon), and Windows (x86_64)
-with the following compilers:
+Boost.Decimal is tested natively on Ubuntu (x86_64, s390x, and aarch64), macOS (x86_64, and Apple Silicon), and Windows (x32 and x64);
+as well as emulated PPC64LE and STM32 using QEMU with the following compilers:
 
 * GCC 7 and later
 * Clang 6 and later
 * Visual Studio 2017 and later
+* Intel OneAPI DPC++
 
 # Synopsis
 

doc/decimal/overview.adoc

@@ -30,11 +30,13 @@ For example, while a fixed-point representation that allocates 8 decimal digits
 
 == Supported Compilers
 
-Boost.Decimal is tested on Ubuntu (x86_64, s390x, and aarch64), macOS (x86_64, and Apple Silicon), and Windows with the following compilers:
+Boost.Decimal is tested natively on Ubuntu (x86_64, s390x, and aarch64), macOS (x86_64, and Apple Silicon), and Windows (x32 and x64);
+as well as emulated PPC64LE and STM32 using QEMU with the following compilers:
 
 * GCC 7 and later
 * Clang 6 and later
 * Visual Studio 2017 and later
+* Intel OneAPI DPC++
 
 Tested on https://github.com/cppalliance/decimal/actions[Github Actions] and https://drone.cpp.al/cppalliance/decimal[Drone].
 Coverage can be found on https://app.codecov.io/gh/cppalliance/decimal[Codecov].