| #define CXX_STD_98 199711L |
| #define CXX_STD_11 201103L |
| #define CXX_STD_14 201402L |
| #define CXX_STD_17 201703L |
| #define CXX_STD_20 202002L |
| #define CXX_STD_23 202302L |
| |
| #if defined(__INTEL_COMPILER) && defined(_MSVC_LANG) |
| # if _MSVC_LANG > CXX_STD_17 |
| # define CXX_STD _MSVC_LANG |
| # elif _MSVC_LANG == CXX_STD_17 && defined(__cpp_aggregate_paren_init) |
| # define CXX_STD CXX_STD_20 |
| # elif _MSVC_LANG > CXX_STD_14 && __cplusplus > CXX_STD_17 |
| # define CXX_STD CXX_STD_20 |
| # elif _MSVC_LANG > CXX_STD_14 |
| # define CXX_STD CXX_STD_17 |
| # elif defined(__INTEL_CXX11_MODE__) && defined(__cpp_aggregate_nsdmi) |
| # define CXX_STD CXX_STD_14 |
| # elif defined(__INTEL_CXX11_MODE__) |
| # define CXX_STD CXX_STD_11 |
| # else |
| # define CXX_STD CXX_STD_98 |
| # endif |
| #elif defined(_MSC_VER) && defined(_MSVC_LANG) |
| # if _MSVC_LANG > __cplusplus |
| # define CXX_STD _MSVC_LANG |
| # else |
| # define CXX_STD __cplusplus |
| # endif |
| #elif defined(__NVCOMPILER) |
| # if __cplusplus == CXX_STD_17 && defined(__cpp_aggregate_paren_init) |
| # define CXX_STD CXX_STD_20 |
| # else |
| # define CXX_STD __cplusplus |
| # endif |
| #elif defined(__INTEL_COMPILER) || defined(__PGI) |
| # if __cplusplus == CXX_STD_11 && defined(__cpp_namespace_attributes) |
| # define CXX_STD CXX_STD_17 |
| # elif __cplusplus == CXX_STD_11 && defined(__cpp_aggregate_nsdmi) |
| # define CXX_STD CXX_STD_14 |
| # else |
| # define CXX_STD __cplusplus |
| # endif |
| #elif (defined(__IBMCPP__) || defined(__ibmxl__)) && defined(__linux__) |
| # if __cplusplus == CXX_STD_11 && defined(__cpp_aggregate_nsdmi) |
| # define CXX_STD CXX_STD_14 |
| # else |
| # define CXX_STD __cplusplus |
| # endif |
| #elif __cplusplus == 1 && defined(__GXX_EXPERIMENTAL_CXX0X__) |
| # define CXX_STD CXX_STD_11 |
| #else |
| # define CXX_STD __cplusplus |
| #endif |