diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6d4810a7d7f212cf0f66501cf53a35f96fadf89..c138a81876b7377d8e4ed48a3aa9f163b8586552 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -139,6 +139,9 @@ endif()
############################################################################################################################
+set( CMAKE_CXX_STANDARD 14 )
+set( CMAKE_CXX_STANDARD_REQUIRED ON )
+set( CMAKE_CXX_EXTENSIONS OFF )
############################################################################################################################
##
@@ -172,7 +175,7 @@ if( CMAKE_CXX_COMPILER MATCHES "icpc" OR CMAKE_CXX_COMPILER_ARG1 MATCHES "icpc"
MARK_AS_ADVANCED(XILD)
if( CMAKE_VERSION VERSION_LESS 3.6.0 )
set( CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14" )
- add_flag ( CMAKE_CXX_FLAGS ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ add_flag ( CMAKE_CXX_FLAGS ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
endif()
else()
option ( WALBERLA_CXX_COMPILER_IS_INTEL "Use Intel compiler" OFF )
@@ -278,10 +281,6 @@ if ( WALBERLA_PROFILE_USE )
endif()
endif()
-set( CMAKE_CXX_STANDARD 14 )
-set( CMAKE_CXX_STANDARD_REQUIRED ON )
-set( CMAKE_CXX_EXTENSIONS OFF )
-
# common flags for intel and g++
if ( NOT WARNING_DISABLE AND ( WALBERLA_CXX_COMPILER_IS_GNU OR WALBERLA_CXX_COMPILER_IS_INTEL ) )
add_flag ( CMAKE_CXX_FLAGS "-Wall -Wconversion -Wshadow" )
@@ -290,7 +289,7 @@ endif()
# C++ language features for NEC compiler
if( WALBERLA_CXX_COMPILER_IS_NEC )
set( CMAKE_CXX14_STANDARD_COMPILE_OPTION "-Kcpp14" )
- add_flag ( CMAKE_CXX_FLAGS "${CMAKE_CXX14_STANDARD_COMPILE_OPTION} -Krtti -Kexceptions -size_t64 -Kgcc" )
+ add_flag ( CMAKE_CXX_FLAGS "${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} -Krtti -Kexceptions -size_t64 -Kgcc" )
add_flag ( CMAKE_CXX_FLAGS "-D__BIG_ENDIAN -D__BYTE_ORDER=__BIG_ENDIAN" )
add_flag ( CMAKE_CXX_FLAGS "-Tnoauto,used" )
add_flag ( CMAKE_EXE_LINKER_FLAGS "-Wl,-h,muldefs" )
@@ -442,19 +441,19 @@ endif()
############################################################################################################################
try_compile( WALBERLA_USE_STD_FILESYSTEM "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdFilesystem.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_FILESYSTEM ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_FILESYSTEM ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_FILESYSTEM )
message( STATUS "Found std::filesystem")
else()
try_compile( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdFilesystem.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM )
message( STATUS "Found std::experimental::filesystem")
endif()
if( NOT WALBERLA_CXX_COMPILER_IS_MSVC AND NOT WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM )
unset( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM CACHE )
try_compile( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdFilesystem.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM ${CMAKE_CXX14_STANDARD_COMPILE_OPTION}
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION}
LINK_LIBRARIES stdc++fs )
if( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM )
message( STATUS "Found std::experimental::filesystem in libstdc++fs")
@@ -464,7 +463,7 @@ else()
if( NOT WALBERLA_CXX_COMPILER_IS_MSVC AND NOT WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM )
unset( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM CACHE )
try_compile( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdFilesystem.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM ${CMAKE_CXX14_STANDARD_COMPILE_OPTION}
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION}
LINK_LIBRARIES c++experimental )
if( WALBERLA_USE_STD_EXPERIMENTAL_FILESYSTEM )
message( STATUS "Found std::experimental::filesystem in libc++experimental")
@@ -474,31 +473,31 @@ else()
endif()
try_compile( WALBERLA_USE_STD_ANY "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdAny.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_ANY ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_ANY ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_ANY )
message( STATUS "Found std::any")
else()
try_compile( WALBERLA_USE_STD_EXPERIMENTAL_ANY "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdAny.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_ANY ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_ANY ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_EXPERIMENTAL_ANY )
message( STATUS "Found std::experimental::any")
endif()
endif()
try_compile( WALBERLA_USE_STD_OPTIONAL "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdOptional.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_OPTIONAL ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_OPTIONAL ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_OPTIONAL )
message( STATUS "Found std::optional")
else()
try_compile( WALBERLA_USE_STD_EXPERIMENTAL_OPTIONAL "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdOptional.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_OPTIONAL ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_EXPERIMENTAL_OPTIONAL ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_EXPERIMENTAL_OPTIONAL )
message( STATUS "Found std::experimental::optional")
endif()
endif()
try_compile( WALBERLA_USE_STD_VARIANT "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestStdVariant.cpp"
- COMPILE_DEFINITIONS -DWALBERLA_USE_STD_VARIANT ${CMAKE_CXX14_STANDARD_COMPILE_OPTION} )
+ COMPILE_DEFINITIONS -DWALBERLA_USE_STD_VARIANT ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
if( WALBERLA_USE_STD_VARIANT )
message( STATUS "Found std::variant")
endif()
@@ -1132,7 +1131,7 @@ if ( WALBERLA_BUILD_WITH_CUDA )
endif()
if ( NOT "${CUDA_NVCC_FLAGS}" MATCHES "-std=" AND NOT WALBERLA_CXX_COMPILER_IS_MSVC )
- list ( APPEND CUDA_NVCC_FLAGS "-std=c++14" )
+ list ( APPEND CUDA_NVCC_FLAGS "-std=c++${CMAKE_CXX_STANDARD}" )
endif ()
if(CMAKE_BUILD_TYPE MATCHES Debug)
diff --git a/cmake/TestStdAny.cpp b/cmake/TestStdAny.cpp
index 6b7e22269737d293cab1daba5d4030c186b5fcd8..6bcc880a6134bf1c0c538f6a32e92f87f6d1e8ea 100644
--- a/cmake/TestStdAny.cpp
+++ b/cmake/TestStdAny.cpp
@@ -8,9 +8,10 @@
int main() {
#if defined(WALBERLA_USE_STD_ANY)
auto a = std::any(42);
+ std::cout << std::any_cast<int>(a) << std::endl;
#elif defined(WALBERLA_USE_STD_EXPERIMENTAL_ANY)
auto a = std::experimental::any(42);
-#endif
std::cout << std::experimental::any_cast<int>(a) << std::endl;
+#endif
return 0;
}