| /* |
| Copyright Benjamin Worpitz 2018 |
| Distributed under the Boost Software License, Version 1.0. |
| (See accompanying file LICENSE_1_0.txt or copy at |
| http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| |
| #ifndef BOOST_PREDEF_COMPILER_NVCC_H |
| #define BOOST_PREDEF_COMPILER_NVCC_H |
| |
| #include <boost/predef/version_number.h> |
| #include <boost/predef/make.h> |
| |
| /*` |
| [heading `BOOST_COMP_NVCC`] |
| |
| [@https://en.wikipedia.org/wiki/NVIDIA_CUDA_Compiler NVCC] compiler. |
| Version number available as major, minor, and patch beginning with version 7.5. |
| |
| [table |
| [[__predef_symbol__] [__predef_version__]] |
| |
| [[`__NVCC__`] [__predef_detection__]] |
| |
| [[`__CUDACC_VER_MAJOR__`, `__CUDACC_VER_MINOR__`, `__CUDACC_VER_BUILD__`] [V.R.P]] |
| ] |
| */ |
| |
| #define BOOST_COMP_NVCC BOOST_VERSION_NUMBER_NOT_AVAILABLE |
| |
| #if defined(__NVCC__) |
| # if !defined(__CUDACC_VER_MAJOR__) || !defined(__CUDACC_VER_MINOR__) || !defined(__CUDACC_VER_BUILD__) |
| # define BOOST_COMP_NVCC_DETECTION BOOST_VERSION_NUMBER_AVAILABLE |
| # else |
| # define BOOST_COMP_NVCC_DETECTION BOOST_VERSION_NUMBER(__CUDACC_VER_MAJOR__, __CUDACC_VER_MINOR__, __CUDACC_VER_BUILD__) |
| # endif |
| #endif |
| |
| #ifdef BOOST_COMP_NVCC_DETECTION |
| /* |
| Always define BOOST_COMP_NVCC instead of BOOST_COMP_NVCC_EMULATED |
| The nvcc compilation process is somewhat special as can be read here: |
| https://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html#cuda-compilation-trajectory |
| The nvcc compiler precompiles the input two times. Once for the device code |
| being compiled by the cicc device compiler and once for the host code |
| compiled by the real host compiler. NVCC uses gcc/clang/msvc/... |
| depending on the host compiler being set on the command line. |
| |
| Predef (as a preprocessor only lib) detects the one doing the preprocessing |
| as compiler and expects it to be the one doing the real compilation. |
| This is not true for NVCC which is only doing the preprocessing and which |
| is using another compiler for parts of its work. So for NVCC it should be |
| allowed to set BOOST_COMP_NVCC additionally to the already detected host |
| compiler because both is true: It is gcc/clang/... compiling the code, but it |
| is also NVCC doing the preprocessing and adding some other quirks you may |
| want to detect. |
| |
| This behavior is similar to what boost config is doing in `select_compiler_config.hpp`. |
| There the NVCC detection is not handled as a real compiler (part of the |
| #if-#elif) but as additional option before the real compiler. |
| */ |
| # undef BOOST_COMP_NVCC |
| # define BOOST_COMP_NVCC BOOST_COMP_NVCC_DETECTION |
| # define BOOST_COMP_NVCC_AVAILABLE |
| # include <boost/predef/detail/comp_detected.h> |
| #endif |
| |
| #define BOOST_COMP_NVCC_NAME "NVCC" |
| |
| #endif |
| |
| #include <boost/predef/detail/test.h> |
| BOOST_PREDEF_DECLARE_TEST(BOOST_COMP_NVCC,BOOST_COMP_NVCC_NAME) |