diff options
Diffstat (limited to 'absl/base/config.h')
| -rw-r--r-- | absl/base/config.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/absl/base/config.h b/absl/base/config.h index 5802b653..3f3b8b3a 100644 --- a/absl/base/config.h +++ b/absl/base/config.h @@ -181,21 +181,21 @@ // __SIZEOF_INT128__ but not all versions actually support __int128. #ifdef ABSL_HAVE_INTRINSIC_INT128 #error ABSL_HAVE_INTRINSIC_INT128 cannot be directly set -#elif (defined(__clang__) && defined(__SIZEOF_INT128__) && \ - !defined(__aarch64__)) || \ - (defined(__CUDACC__) && defined(__SIZEOF_INT128__) && \ - __CUDACC_VER_MAJOR__ >= 9) || \ - (!defined(__clang__) && !defined(__CUDACC__) && defined(__GNUC__) && \ - defined(__SIZEOF_INT128__)) +#elif defined(__SIZEOF_INT128__) +#if (defined(__clang__) && !defined(__aarch64__)) || \ + (defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) || \ + (!defined(__clang__) && !defined(__CUDACC__) && defined(__GNUC__)) #define ABSL_HAVE_INTRINSIC_INT128 1 +#elif defined(__CUDACC__) // __CUDACC_VER__ is a full version number before CUDA 9, and is defined to a -// std::string explaining that it has been removed starting with CUDA 9. We can't -// compare both variants in a single boolean expression because there is no -// short-circuiting in the preprocessor. -#elif defined(__CUDACC__) && defined(__SIZEOF_INT128__) && \ - __CUDACC_VER__ >= 7000 +// std::string explaining that it has been removed starting with CUDA 9. We use +// nested #ifs because there is no short-circuiting in the preprocessor. +// NOTE: `__CUDACC__` could be undefined while `__CUDACC_VER__` is defined. +#if __CUDACC_VER__ >= 70000 #define ABSL_HAVE_INTRINSIC_INT128 1 -#endif +#endif // __CUDACC_VER__ >= 70000 +#endif // defined(__CUDACC__) +#endif // ABSL_HAVE_INTRINSIC_INT128 // ABSL_HAVE_EXCEPTIONS // |