diff options
| -rw-r--r-- | absl/base/config.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/absl/base/config.h b/absl/base/config.h index 46a84f1a76f6..556b186cb94f 100644 --- a/absl/base/config.h +++ b/absl/base/config.h @@ -85,6 +85,12 @@ #define ABSL_HAVE_BUILTIN(x) 0 #endif +#if defined(__is_identifier) +#define ABSL_INTERNAL_HAS_KEYWORD(x) !(__is_identifier(x)) +#else +#define ABSL_INTERNAL_HAS_KEYWORD(x) 0 +#endif + // ABSL_HAVE_TLS is defined to 1 when __thread should be supported. // We assume __thread is supported on Linux when compiled with Clang or compiled // against libstdc++ with _GLIBCXX_HAVE_TLS defined. @@ -133,6 +139,17 @@ #define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 #endif +// ABSL_HAVE_SOURCE_LOCATION_CURRENT +// +// Indicates whether `absl::SourceLocation::current()` will return useful +// information in some contexts. +#ifndef ABSL_HAVE_SOURCE_LOCATION_CURRENT +#if ABSL_INTERNAL_HAS_KEYWORD(__builtin_LINE) && \ + ABSL_INTERNAL_HAS_KEYWORD(__builtin_FILE) +#define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1 +#endif +#endif + // ABSL_HAVE_THREAD_LOCAL // // Checks whether C++11's `thread_local` storage duration specifier is @@ -539,4 +556,6 @@ #define ABSL_INTERNAL_MSVC_2017_DBG_MODE #endif +#undef ABSL_INTERNAL_HAS_KEYWORD + #endif // ABSL_BASE_CONFIG_H_ |