bumped cpp version

tempest-devel/CMakeLists.txt

@@ -277,7 +277,7 @@ if (STORM_COMPILER_CLANG OR STORM_COMPILER_APPLECLANG)
 		set(CLANG_STDLIB libc++)
     endif()
 
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -stdlib=${CLANG_STDLIB} -ftemplate-depth=1024")
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -stdlib=${CLANG_STDLIB} -ftemplate-depth=1024")
     set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
 
     if(LINUX)
@@ -291,7 +291,7 @@ elseif (STORM_COMPILER_GCC)
     if(FORCE_COLOR)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=always")
     endif()
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fprefetch-loop-arrays")
     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -rdynamic")
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -rdynamic")
@@ -408,7 +408,7 @@ SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 ##
 #############################################################
 if ("${CMAKE_GENERATOR}" STREQUAL "Xcode")
-	set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LANGUAGE_STANDARD "c++14")
+	set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LANGUAGE_STANDARD "c++17")
 	set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++")
 endif()