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Export of internal Abseil changes

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87f85071a96c6d10f471cdf8a8c2d6c550c926e0 by Matt Kulukundis <kfm@google.com>:

Expose ABSL_HAVE_SOURCE_LOCATION_CURRENT as a public api.

PiperOrigin-RevId: 281383411
GitOrigin-RevId: 87f85071a96c6d10f471cdf8a8c2d6c550c926e0
Change-Id: I4dfc18a5ba8e064bf9b749892aa8293470459e6b
This commit is contained in:
Abseil Team 2019-11-19 14:43:59 -08:00 committed by Gennadiy Civil
parent 2103fd9acd
commit 8ba96a8244
1 changed files with 19 additions and 0 deletions
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19
absl/base/config.h
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@ -85,6 +85,12 @@
#define ABSL_HAVE_BUILTIN(x) 0 #define ABSL_HAVE_BUILTIN(x) 0
#endif #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. // 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 // We assume __thread is supported on Linux when compiled with Clang or compiled
// against libstdc++ with _GLIBCXX_HAVE_TLS defined. // against libstdc++ with _GLIBCXX_HAVE_TLS defined.
@ -133,6 +139,17 @@
#define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 #define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1
#endif #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 // ABSL_HAVE_THREAD_LOCAL
// //
// Checks whether C++11's `thread_local` storage duration specifier is // Checks whether C++11's `thread_local` storage duration specifier is
@ -539,4 +556,6 @@
#define ABSL_INTERNAL_MSVC_2017_DBG_MODE #define ABSL_INTERNAL_MSVC_2017_DBG_MODE
#endif #endif
#undef ABSL_INTERNAL_HAS_KEYWORD
#endif // ABSL_BASE_CONFIG_H_ #endif // ABSL_BASE_CONFIG_H_