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| author |  Abseil Team <absl-team@google.com> | 2022-08-05 06:56:05 -0700 |
|---|---|---|
| committer |  Copybara-Service <copybara-worker@google.com> | 2022-08-05 06:56:59 -0700 |
| commit | cfe27e79cfcbefb2b4479e04f80cbb299bc46965 (patch) | |
| tree | 7294acf94b9892a35927c5967c950192ed2acc2c /absl/base/config.h | |
| parent | c9736080610480eac20c946f0369ff0d05679842 (diff) | |
Map the absl::is_trivially_* functions to their std impl
There's no point redefining these functions if they are supported by the compiler and the version of libstdc++. Also, some of the builtins used by the absl implementation of these functions (e.g. __has_trivial_destructor) have been deprecated in Clang 15.
PiperOrigin-RevId: 465554125
Change-Id: I8674c3a5270ce3c654cdf58ae7dbd9d2bda8faa5
Diffstat (limited to 'absl/base/config.h')
| -rw-r--r-- | absl/base/config.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/absl/base/config.h b/absl/base/config.h index 94f7fcb5..2faed85a 100644 --- a/absl/base/config.h +++ b/absl/base/config.h @@ -273,6 +273,17 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || #define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 #endif +// ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE +// +// Checks whether `std::is_trivially_copyable<T>` is supported. +// +// Notes: Clang 15+ with libc++ supports these features, GCC hasn't been tested. +#if defined(ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE) +#error ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE cannot be directly set +#elif defined(__clang__) && (__clang_major__ >= 15) +#define ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE 1 +#endif + // ABSL_HAVE_THREAD_LOCAL // // Checks whether C++11's `thread_local` storage duration specifier is |