Switch to C++20 (#244)

Author: fgallegosalido

rmw_connextdds/CMakeLists.txt

@@ -16,9 +16,9 @@ cmake_minimum_required(VERSION 3.20)
 
 project(rmw_connextdds)
 
-# Default to C++17
+# Default to C++20
 if(NOT CMAKE_CXX_STANDARD)
-    set(CMAKE_CXX_STANDARD 17)
+    set(CMAKE_CXX_STANDARD 20)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
 endif()
 

rmw_connextdds_common/CMakeLists.txt

@@ -38,9 +38,9 @@ function(rtirmw_add_library)
       ${ARGN} # current function arguments
     )
 
-    # Default to C++17
+    # Default to C++20
     if(NOT CMAKE_CXX_STANDARD)
-        set(CMAKE_CXX_STANDARD 17)
+        set(CMAKE_CXX_STANDARD 20)
         set(CMAKE_CXX_STANDARD_REQUIRED ON)
     endif()
 

rmw_connextddsmicro/CMakeLists.txt

@@ -16,9 +16,9 @@ cmake_minimum_required(VERSION 3.20)
 
 project(rmw_connextddsmicro)
 
-# Default to C++17
+# Default to C++20
 if(NOT CMAKE_CXX_STANDARD)
-    set(CMAKE_CXX_STANDARD 17)
+    set(CMAKE_CXX_STANDARD 20)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
 endif()