C++20 Compatibility: GCC 10.1 (#949)

.github/workflows/dependencies/dependencies.sh

@@ -1,13 +1,9 @@
 #!/usr/bin/env bash
 #
-# Copyright 2020 Axel Huebl
+# Copyright 2020 The AMReX Community
 #
 # License: BSD-3-Clause-LBNL
-
-# search recursive inside a folder if a file contains tabs
-#
-# @result 0 if no files are found, else 1
-#
+# Authors: Axel Huebl
 
 set -eu -o pipefail
 

.github/workflows/dependencies/dependencies_gcc10.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# Copyright 2020 The AMReX Community
+#
+# License: BSD-3-Clause-LBNL
+# Authors: Axel Huebl
+
+set -eu -o pipefail
+
+sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+sudo apt-get update
+
+sudo apt-get install -y --no-install-recommends \
+    build-essential    \
+    g++-10 gfortran-10 \
+    libopenmpi-dev     \
+    openmpi-bin

.github/workflows/dependencies/dependencies_mac.sh

@@ -1,13 +1,9 @@
 #!/usr/bin/env bash
 #
-# Copyright 2020 Axel Huebl
+# Copyright 2020 The AMReX Community
 #
 # License: BSD-3-Clause-LBNL
-
-# search recursive inside a folder if a file contains tabs
-#
-# @result 0 if no files are found, else 1
-#
+# Authors: Axel Huebl
 
 set -eu -o pipefail
 

.github/workflows/linux.yml

@@ -36,6 +36,26 @@ jobs:
         cmake .. -DENABLE_TUTORIALS=ON
         make -j 2 tutorials
 
+  # Build libamrex and all tutorials
+  tutorials_cxx20:
+    name: [email protected] C++20 [tutorials]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Dependencies
+      run: .github/workflows/dependencies/dependencies_gcc10.sh
+    - name: Build & Install
+      run: |
+        mkdir build
+        cd build
+        cmake ..                     \
+            -DENABLE_TUTORIALS=ON    \
+            -DCMAKE_CXX_STANDARD=20  \
+            -DCMAKE_C_COMPILER=$(which gcc-10)              \
+            -DCMAKE_CXX_COMPILER=$(which g++-10)            \
+            -DCMAKE_Fortran_COMPILER=$(which gfortran-10)
+        make -j 2 tutorials
+
   # Build libamrex and all tutorials w/o MPI
   tutorials-nonmpi:
     name: [email protected] C++14 non-MPI [tutorials]