############################# compiler flags ##################################
SET(CMAKE_C_FLAGS "-g")
-SET(CMAKE_CXX_FLAGS "-g -std=c++0x")
+SET(CMAKE_CXX_FLAGS "-g -std=c++14")
SET(CMAKE_C_FLAGS_PROFILING "-O0 -pg")
SET(CMAKE_CXX_FLAGS_PROFILING "-O0 -pg")
SET(CMAKE_C_FLAGS_DEBUG "-O0 -ggdb")