update CMAKE_CXX_STANDARD to 17

Author: andrewfurey21

CMakeLists.txt

@@ -11,7 +11,7 @@ set(CEREAL_VERSION "1.1.2")
 option(DOWNLOAD_ENSMALLEN "If ensmallen is not found, download it." ON)
 option(USE_OPENMP "If available, use OpenMP for parallelization." ON)
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 # Include modules in the CMake directory.