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Diffstat (limited to 'Firestore/Port/absl/absl_config.h')
| -rw-r--r-- | Firestore/Port/absl/absl_config.h | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/Firestore/Port/absl/absl_config.h b/Firestore/Port/absl/absl_config.h deleted file mode 100644 index 70f4d86..0000000 --- a/Firestore/Port/absl/absl_config.h +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Copyright 2017 Google - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * 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 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -// Defines preprocessor macros describing the presence of "features" available. -// This facilitates writing portable code by parameterizing the compilation -// based on the presence or lack of a feature. -// -// We define a feature as some interface we wish to program to: for example, -// some library function or system call. -// -// For example, suppose a programmer wants to write a program that uses the -// 'mmap' system call. Then one might write: -// -// #include "absl/base/config.h" -// -// #ifdef ABSL_HAVE_MMAP -// #include "sys/mman.h" -// #endif //ABSL_HAVE_MMAP -// -// ... -// #ifdef ABSL_HAVE_MMAP -// void *ptr = mmap(...); -// ... -// #endif // ABSL_HAVE_MMAP -// -// As a special note, using feature macros from config.h to determine whether -// to include a particular header requires violating the style guide's required -// ordering for headers: this is permitted. - -#ifndef THIRD_PARTY_ABSL_BASE_CONFIG_H_ -#define THIRD_PARTY_ABSL_BASE_CONFIG_H_ - -// Included for the __GLIBC__ macro (or similar macros on other systems). -#include <limits.h> - -#ifdef __cplusplus -// Included for __GLIBCXX__, _LIBCPP_VERSION -#include <cstddef> -#endif // __cplusplus - -// If we're using glibc, make sure we meet a minimum version requirement -// before we proceed much further. -// -// We have chosen glibc 2.12 as the minimum as it was tagged for release -// in May, 2010 and includes some functionality used in Google software -// (for instance pthread_setname_np): -// https://sourceware.org/ml/libc-alpha/2010-05/msg00000.html -#ifdef __GLIBC_PREREQ -#if !__GLIBC_PREREQ(2, 12) -#error "Minimum required version of glibc is 2.12." -#endif -#endif - -// ABSL_HAVE_BUILTIN is a function-like feature checking macro. -// It's a wrapper around __has_builtin, which is defined by only clang now. -// It evaluates to 1 if the builtin is supported or 0 if not. -// Define it to avoid an extra level of #ifdef __has_builtin check. -// http://releases.llvm.org/3.3/tools/clang/docs/LanguageExtensions.html -#ifdef __has_builtin -#define ABSL_HAVE_BUILTIN(x) __has_builtin(x) -#else -#define ABSL_HAVE_BUILTIN(x) 0 -#endif - -// ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE is defined when -// std::is_trivially_destructible<T> is supported. -// -// All supported compilers using libc++ have it, as does gcc >= 4.8 -// using libstdc++, as does Visual Studio. -// https://gcc.gnu.org/onlinedocs/gcc-4.8.1/libstdc++/manual/manual/status.html#status.iso.2011 -// is the first version where std::is_trivially_destructible no longer -// appeared as missing in the Type properties row. -#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE -#error ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set -#elif defined(_LIBCPP_VERSION) || \ - (!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && \ - (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) || \ - defined(_MSC_VER) -#define ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1 -#endif - -// ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE is defined when -// std::is_trivially_default_constructible<T> and -// std::is_trivially_copy_constructible<T> are supported. -// -// ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE is defined when -// std::is_trivially_copy_assignable<T> is supported. -// -// Clang with libc++ supports it, as does gcc >= 5.1 with either -// libc++ or libstdc++, as does Visual Studio. -// https://gcc.gnu.org/gcc-5/changes.html lists as new -// "std::is_trivially_constructible, std::is_trivially_assignable -// etc." -#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) -#error ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set -#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) || \ - (!defined(__clang__) && defined(__GNUC__) && \ - (__GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)) && \ - (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) || \ - defined(_MSC_VER) -#define ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1 -#define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 -#endif - -// ABSL_HAVE_THREAD_LOCAL is defined when C++11's thread_local is available. -// Clang implements thread_local keyword but Xcode did not support the -// implementation until Xcode 8. -#ifdef ABSL_HAVE_THREAD_LOCAL -#error ABSL_HAVE_THREAD_LOCAL cannot be directly set -#elif !defined(__apple_build_version__) || __apple_build_version__ >= 8000042 -#define ABSL_HAVE_THREAD_LOCAL 1 -#endif - -// ABSL_HAVE_INTRINSIC_INT128 is defined when the implementation provides the -// 128 bit integral type: __int128. -// -// __SIZEOF_INT128__ is defined by Clang and GCC when __int128 is supported. -// Clang on ppc64 and aarch64 are exceptions where __int128 exists but has a -// sporadic compiler crashing bug. Nvidia's nvcc also defines __GNUC__ and -// __SIZEOF_INT128__ but not all versions that do this support __int128. Support -// has been tested for versions >= 7. -#ifdef ABSL_HAVE_INTRINSIC_INT128 -#error ABSL_HAVE_INTRINSIC_INT128 cannot be directly set -#elif (defined(__clang__) && defined(__SIZEOF_INT128__) && !defined(__ppc64__) && \ - !defined(__aarch64__)) || \ - (defined(__CUDACC__) && defined(__SIZEOF_INT128__) && __CUDACC_VER__ >= 70000) || \ - (!defined(__clang__) && !defined(__CUDACC__) && defined(__GNUC__) && \ - defined(__SIZEOF_INT128__)) -#define ABSL_HAVE_INTRINSIC_INT128 1 -#endif - -// Operating system-specific features. -// -// Currently supported operating systems and associated preprocessor -// symbols: -// -// Linux and Linux-derived __linux__ -// Android __ANDROID__ (implies __linux__) -// Linux (non-Android) __linux__ && !__ANDROID__ -// Darwin (Mac OS X and iOS) __APPLE__ && __MACH__ -// Akaros (http://akaros.org) __ros__ -// Windows _WIN32 -// NaCL __native_client__ -// AsmJS __asmjs__ -// Fuschia __Fuchsia__ -// -// Note that since Android defines both __ANDROID__ and __linux__, one -// may probe for either Linux or Android by simply testing for __linux__. -// - -// ABSL_HAVE_MMAP is defined when the system has an mmap(2) implementation -// as defined in POSIX.1-2001. -#ifdef ABSL_HAVE_MMAP -#error ABSL_HAVE_MMAP cannot be directly set -#elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__ros__) || \ - defined(__native_client__) || defined(__asmjs__) || defined(__Fuchsia__) -#define ABSL_HAVE_MMAP 1 -#endif - -// ABSL_HAS_PTHREAD_GETSCHEDPARAM is defined when the system implements the -// pthread_(get|set)schedparam(3) functions as defined in POSIX.1-2001. -#ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM -#error ABSL_HAVE_PTHREAD_GETSCHEDPARAM cannot be directly set -#elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__ros__) -#define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1 -#endif - -// ABSL_HAVE_SCHED_YIELD is defined when the system implements -// sched_yield(2) as defined in POSIX.1-2001. -#ifdef ABSL_HAVE_SCHED_YIELD -#error ABSL_HAVE_SCHED_YIELD cannot be directly set -#elif defined(__linux__) || defined(__ros__) || defined(__native_client__) -#define ABSL_HAVE_SCHED_YIELD 1 -#endif - -// ABSL_HAVE_SEMAPHORE_H is defined when the system supports the <semaphore.h> -// header and sem_open(3) family of functions as standardized in POSIX.1-2001. -// -// Note: While Apple does have <semaphore.h> for both iOS and macOS, it is -// explicity deprecated and will cause build failures if enabled for those -// systems. We side-step the issue by not defining it here for Apple platforms. -#ifdef ABSL_HAVE_SEMAPHORE_H -#error ABSL_HAVE_SEMAPHORE_H cannot be directly set -#elif defined(__linux__) || defined(__ros__) -#define ABSL_HAVE_SEMAPHORE_H 1 -#endif - -// Library-specific features. -#ifdef ABSL_HAVE_ALARM -#error ABSL_HAVE_ALARM cannot be directly set -#elif defined(__GOOGLE_GRTE_VERSION__) -// feature tests for Google's GRTE -#define ABSL_HAVE_ALARM 1 -#elif defined(__GLIBC__) -// feature test for glibc -#define ABSL_HAVE_ALARM 1 -#elif defined(_MSC_VER) -// feature tests for Microsoft's library -#elif defined(__native_client__) -#else -// other standard libraries -#define ABSL_HAVE_ALARM 1 -#endif - -#if defined(_STLPORT_VERSION) -#error "STLPort is not supported." -#endif - -// ----------------------------------------------------------------------------- -// Endianness -// ----------------------------------------------------------------------------- -// Define ABSL_IS_LITTLE_ENDIAN, ABSL_IS_BIG_ENDIAN. -// Some compilers or system headers provide macros to specify endianness. -// Unfortunately, there is no standard for the names of the macros or even of -// the header files. -// Reference: https://sourceforge.net/p/predef/wiki/Endianness/ -#if defined(ABSL_IS_BIG_ENDIAN) || defined(ABSL_IS_LITTLE_ENDIAN) -#error "ABSL_IS_(BIG|LITTLE)_ENDIAN cannot be directly set." - -#elif defined(__GLIBC__) || defined(__linux__) -// Operating systems that use the GNU C library generally provide <endian.h> -// containing __BYTE_ORDER, __LITTLE_ENDIAN, __BIG_ENDIAN. -#include <endian.h> - -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define ABSL_IS_LITTLE_ENDIAN 1 -#elif __BYTE_ORDER == __BIG_ENDIAN -#define ABSL_IS_BIG_ENDIAN 1 -#else // __BYTE_ORDER != __LITTLE_ENDIAN && __BYTE_ORDER != __BIG_ENDIAN -#error "Unknown endianness" -#endif // __BYTE_ORDER - -#elif defined(__APPLE__) && defined(__MACH__) -// Apple has <machine/endian.h> containing BYTE_ORDER, BIG_ENDIAN, -// LITTLE_ENDIAN. -#include <machine/endian.h> // NOLINT(build/include) - -#if BYTE_ORDER == LITTLE_ENDIAN -#define ABSL_IS_LITTLE_ENDIAN 1 -#elif BYTE_ORDER == BIG_ENDIAN -#define ABSL_IS_BIG_ENDIAN 1 -#else // BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN -#error "Unknown endianness" -#endif // BYTE_ORDER - -#elif defined(_WIN32) -// Assume Windows is little-endian. -#define ABSL_IS_LITTLE_ENDIAN 1 - -#elif defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || defined(__THUMBEL__) || \ - defined(__AARCH64EL__) || defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__) -#define ABSL_IS_LITTLE_ENDIAN 1 - -#elif defined(__BIG_ENDIAN__) || defined(__ARMEB__) || defined(__THUMBEB__) || \ - defined(__AARCH64EB__) || defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__) -#define ABSL_IS_BIG_ENDIAN 1 - -#else -#error "absl endian detection needs to be set up on your platform." -#endif - -// ABSL_HAVE_EXCEPTIONS is defined when exceptions are enabled. Many -// compilers support a "no exceptions" mode that disables exceptions. -// -// Generally, when ABSL_HAVE_EXCEPTIONS is not defined: -// -// - Code using `throw` and `try` may not compile. -// - The `noexcept` specifier will still compile and behave as normal. -// - The `noexcept` operator may still return `false`. -// -// For further details, consult the compiler's documentation. -#ifdef ABSL_HAVE_EXCEPTIONS -#error ABSL_HAVE_EXCEPTIONS cannot be directly set. - -#elif defined(__clang__) -// TODO -// Switch to using __cpp_exceptions when we no longer support versions < 3.6. -// For details on this check, see: -// https://goo.gl/PilDrJ -#if defined(__EXCEPTIONS) && __has_feature(cxx_exceptions) -#define ABSL_HAVE_EXCEPTIONS 1 -#endif // defined(__EXCEPTIONS) && __has_feature(cxx_exceptions) - -// Handle remaining special cases and default to exceptions being supported. -#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) && \ - !(defined(__GNUC__) && (__GNUC__ >= 5) && !defined(__cpp_exceptions)) && \ - !(defined(_MSC_VER) && !defined(_CPPUNWIND)) -#define ABSL_HAVE_EXCEPTIONS 1 -#endif - -#endif // THIRD_PARTY_ABSL_BASE_CONFIG_H_ |