diff options
Diffstat (limited to 'absl/base/config.h')
| -rw-r--r-- | absl/base/config.h | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/absl/base/config.h b/absl/base/config.h index db4c4539..1c3cb08e 100644 --- a/absl/base/config.h +++ b/absl/base/config.h @@ -5,7 +5,7 @@ // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // -// http://www.apache.org/licenses/LICENSE-2.0 +// https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, @@ -118,7 +118,7 @@ // Checks whether `std::is_trivially_copy_assignable<T>` is supported. // Notes: Clang with libc++ supports these features, as does gcc >= 5.1 with -// either libc++ or libstdc++, and Visual Studio. +// either libc++ or libstdc++, and Visual Studio (but not NVCC). #if defined(ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE) #error ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE cannot be directly set #elif defined(ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE) @@ -127,7 +127,7 @@ (!defined(__clang__) && defined(__GNUC__) && \ (__GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)) && \ (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) || \ - defined(_MSC_VER) + (defined(_MSC_VER) && !defined(__NVCC__)) #define ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1 #define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 #endif @@ -181,6 +181,13 @@ #endif #endif // defined(__ANDROID__) && defined(__clang__) +// Emscripten doesn't yet support `thread_local` or `__thread`. +// https://github.com/emscripten-core/emscripten/issues/3502 +#if defined(__EMSCRIPTEN__) +#undef ABSL_HAVE_TLS +#undef ABSL_HAVE_THREAD_LOCAL +#endif // defined(__EMSCRIPTEN__) + // ABSL_HAVE_INTRINSIC_INT128 // // Checks whether the __int128 compiler extension for a 128-bit integral type is @@ -191,15 +198,13 @@ // * On Clang: // * Building using Clang for Windows, where the Clang runtime library has // 128-bit support only on LP64 architectures, but Windows is LLP64. -// * Building for aarch64, where __int128 exists but has exhibits a sporadic -// compiler crashing bug. // * On Nvidia's nvcc: // * nvcc also defines __GNUC__ and __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(__SIZEOF_INT128__) -#if (defined(__clang__) && !defined(_WIN32) && !defined(__aarch64__)) || \ +#if (defined(__clang__) && !defined(_WIN32)) || \ (defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) || \ (defined(__GNUC__) && !defined(__clang__) && !defined(__CUDACC__)) #define ABSL_HAVE_INTRINSIC_INT128 1 @@ -255,7 +260,7 @@ // Linux and Linux-derived __linux__ // Android __ANDROID__ (implies __linux__) // Linux (non-Android) __linux__ && !__ANDROID__ -// Darwin (Mac OS X and iOS) __APPLE__ +// Darwin (macOS and iOS) __APPLE__ // Akaros (http://akaros.org) __ros__ // Windows _WIN32 // NaCL __native_client__ @@ -365,16 +370,25 @@ #error "absl endian detection needs to be set up for your compiler" #endif -// MacOS 10.13 doesn't let you use <any>, <optional>, or <variant> even though -// the headers exist and are publicly noted to work. See +// macOS 10.13 and iOS 10.11 don't let you use <any>, <optional>, or <variant> +// even though the headers exist and are publicly noted to work. See // https://github.com/abseil/abseil-cpp/issues/207 and // https://developer.apple.com/documentation/xcode_release_notes/xcode_10_release_notes +// libc++ spells out the availability requirements in the file +// llvm-project/libcxx/include/__config via the #define +// _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS. #if defined(__APPLE__) && defined(_LIBCPP_VERSION) && \ - defined(__MAC_OS_X_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101400 -#define ABSL_INTERNAL_MACOS_HAS_CXX_17_TYPES 1 + ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101400) || \ + (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 120000) || \ + (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 120000) || \ + (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 50000)) +#define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 1 #else -#define ABSL_INTERNAL_MACOS_HAS_CXX_17_TYPES 0 +#define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 0 #endif // ABSL_HAVE_STD_ANY @@ -386,7 +400,7 @@ #ifdef __has_include #if __has_include(<any>) && __cplusplus >= 201703L && \ - ABSL_INTERNAL_MACOS_HAS_CXX_17_TYPES + !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE #define ABSL_HAVE_STD_ANY 1 #endif #endif @@ -400,7 +414,7 @@ #ifdef __has_include #if __has_include(<optional>) && __cplusplus >= 201703L && \ - ABSL_INTERNAL_MACOS_HAS_CXX_17_TYPES + !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE #define ABSL_HAVE_STD_OPTIONAL 1 #endif #endif @@ -414,7 +428,7 @@ #ifdef __has_include #if __has_include(<variant>) && __cplusplus >= 201703L && \ - ABSL_INTERNAL_MACOS_HAS_CXX_17_TYPES + !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE #define ABSL_HAVE_STD_VARIANT 1 #endif #endif |