Add -CMAKE_CXX_STANDARD on ubuntu workflow

.github/workflows/coverage.yml

@@ -4,7 +4,7 @@ env:
   BUILD_TYPE: Debug
 jobs:
   coverage:
-    runs-on: ubuntu-latest
+    runs-on: macos-latest
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/ubuntu_test_cases.yml

@@ -33,24 +33,15 @@ jobs:
       - name: Configure CMake
         # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
         # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
-        run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_COVERAGE=true
-        shell: bash
-        env:
-          CXX: g++-20
+        run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_CXX_STANDARD=20 -DENABLE_COVERAGE=true
       - name: Build
         # Build your program with the given configuration
         run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
-        shell: bash
-        env:
-          CXX: g++-20
       - name: Test
         working-directory: ${{github.workspace}}/build
         # Execute tests defined by the CMake configuration.
         # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
         run: ctest --output-on-failure
-        shell: bash
-        env:
-          CXX: g++-20
       - name: Upload coverage reports to Codecov
         uses: codecov/[email protected]
         with:

CMakeLists.txt

@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.12)
 project(algoplus VERSION 1.0.0 LANGUAGES CXX)
 set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(EXCLUDE_DIR "third_party/")
 set(unit_name "algoplus")
 set(package_name "${unit_name}")