Update CMake configuration to support C++20 and C++23 standards, and add RAJA build preset

add support for CMAKE_CXX_STANDARD #6

Author: prudhomm

CMakeLists.txt

@@ -1,6 +1,15 @@
 cmake_minimum_required( VERSION 3.22.1 )
 
-project( proxyapp )
+project( proxy-geos VERSION 0.1 LANGUAGES CXX Fortran)
+
+# -----------------------------------------------------
+# cmake c++ standard
+#-----------------------------------------------------
+if (NOT CMAKE_CXX_STANDARD)
+  set(CMAKE_CXX_STANDARD_REQUIRED ON)
+  set(CMAKE_CXX_STANDARD 20)
+endif()
+
 
 #-----------------------------------------------------
 # Setup Flags for whether considering an external libs 

CMakePresets.json

@@ -6,12 +6,14 @@
         "patch": 0
     },
     "configurePresets": [
+
         {
             "name": "default",
             "displayName": "Default Config",
             "description": "Default config",
             "generator": "Unix Makefiles",
             "binaryDir": "${sourceDir}/build/default",
+            "inherits": "cpp20",
             "cacheVariables": {
                 "CMAKE_CXX_COMPILER": "g++",
                 "CMAKE_C_COMPILER": "gcc",
@@ -49,6 +51,52 @@
                     "autoFormat": true
                 }
             }
+        },
+        {
+            "name": "raja",
+            "displayName": "raja Config",
+            "description": "raja config",
+            "generator": "Unix Makefiles",
+            "binaryDir": "${sourceDir}/build/raja",
+            "cacheVariables": {
+                "CMAKE_CXX_COMPILER": "g++",
+                "CMAKE_C_COMPILER": "gcc",
+                "CMAKE_INSTALL_PREFIX" : "${sourceDir}/build/raja/install/",
+                "CMAKE_BUILD_TYPE": "Release",
+                "USE_OMP": "OFF",
+                "USE_RAJA": "ON",
+                "USE_KOKKOS": "OFF",
+                "ENABLE_TESTS": "ON"
+            },
+            "vendor": {
+                "example.com/ExampleIDE/1.0": {
+                    "autoFormat": true
+                }
+            }
+        },
+        {
+            "name": "cpp20",
+            "displayName": "C++ Standard",
+            "description": "C++ Standard",
+            "cacheVariables": {
+                "CMAKE_CXX_STANDARD": "20"
+            }
+        },
+        {
+            "name": "cpp23",
+            "displayName": "C++ Standard",
+            "description": "C++ Standard",
+            "cacheVariables": {
+                "CMAKE_CXX_STANDARD": "23"
+            }
+        },
+        {
+            "name": "cpp17",
+            "displayName": "C++ Standard",
+            "description": "C++ Standard",
+            "cacheVariables": {
+                "CMAKE_CXX_STANDARD": "17"
+            }
         }
     ],
     "buildPresets": [
@@ -61,6 +109,11 @@
             "name": "kokkos",
             "configurePreset": "kokkos",
             "jobs": 10
+        },
+        {
+            "name": "raja",
+            "configurePreset": "raja",
+            "jobs": 10
         }
     ],
     "testPresets": [
@@ -83,6 +136,11 @@
             "name": "kokkos",
             "inherits": "default",
             "configurePreset": "kokkos"
+        },
+        {
+            "name": "raja",
+            "inherits": "default",
+            "configurePreset": "raja"
         }
     ],
     "vendor": {