/*
- * Copyright 2017 Facebook, Inc.
+ * Copyright 2017-present Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#pragma once
-#include <string.h>
-
#include <cstddef>
#include <folly/portability/Config.h>
#else
constexpr bool kHasUnalignedAccess = false;
#endif
-}
+} // namespace folly
// compiler specific attribute translation
// msvc should come first, so if clang is in msvc mode it gets the right defines
-#if defined(__clang__) || defined(__GNUC__)
-# define FOLLY_ALIGNED(size) __attribute__((__aligned__(size)))
-#elif defined(_MSC_VER)
-# define FOLLY_ALIGNED(size) __declspec(align(size))
-#else
-# error Cannot define FOLLY_ALIGNED on this platform
-#endif
-#define FOLLY_ALIGNED_MAX FOLLY_ALIGNED(alignof(std::max_align_t))
-
// NOTE: this will only do checking in msvc with versions that support /analyze
#if _MSC_VER
# ifdef _USE_ATTRIBUTES_FOR_SAL
# endif
/* nolint */
# define _USE_ATTRIBUTES_FOR_SAL 1
-# include <sal.h>
+# include <sal.h> // @manual
# define FOLLY_PRINTF_FORMAT _Printf_format_string_
# define FOLLY_PRINTF_FORMAT_ATTR(format_param, dots_param) /**/
#else
#endif
// warn unused result
+#if defined(__has_cpp_attribute)
+#if __has_cpp_attribute(nodiscard)
+#define FOLLY_NODISCARD [[nodiscard]]
+#endif
+#endif
+#if !defined FOLLY_NODISCARD
#if defined(_MSC_VER) && (_MSC_VER >= 1700)
-#define FOLLY_WARN_UNUSED_RESULT _Check_return_
+#define FOLLY_NODISCARD _Check_return_
#elif defined(__clang__) || defined(__GNUC__)
-#define FOLLY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
+#define FOLLY_NODISCARD __attribute__((__warn_unused_result__))
#else
-#define FOLLY_WARN_UNUSED_RESULT
+#define FOLLY_NODISCARD
+#endif
#endif
// target
# define FOLLY_X64 0
#endif
+#if defined(__arm__)
+#define FOLLY_ARM 1
+#else
+#define FOLLY_ARM 0
+#endif
+
#if defined(__aarch64__)
-# define FOLLY_A64 1
+# define FOLLY_AARCH64 1
#else
-# define FOLLY_A64 0
+# define FOLLY_AARCH64 0
#endif
#if defined (__powerpc64__)
#endif
namespace folly {
+constexpr bool kIsArchArm = FOLLY_ARM == 1;
constexpr bool kIsArchAmd64 = FOLLY_X64 == 1;
-constexpr bool kIsArchAArch64 = FOLLY_A64 == 1;
+constexpr bool kIsArchAArch64 = FOLLY_AARCH64 == 1;
constexpr bool kIsArchPPC64 = FOLLY_PPC64 == 1;
-}
+} // namespace folly
+
+namespace folly {
+
+#if FOLLY_SANITIZE_ADDRESS
+constexpr bool kIsSanitizeAddress = true;
+#else
+constexpr bool kIsSanitizeAddress = false;
+#endif
+
+#if FOLLY_SANITIZE_THREAD
+constexpr bool kIsSanitizeThread = true;
+#else
+constexpr bool kIsSanitizeThread = false;
+#endif
+
+#if FOLLY_SANITIZE
+constexpr bool kIsSanitize = true;
+#else
+constexpr bool kIsSanitize = false;
+#endif
+} // namespace folly
// packing is very ugly in msvc
#ifdef _MSC_VER
#elif defined(__clang__) || defined(__GNUC__)
# define FOLLY_PUSH_WARNING _Pragma("GCC diagnostic push")
# define FOLLY_POP_WARNING _Pragma("GCC diagnostic pop")
-#define FOLLY_GCC_DISABLE_WARNING_INTERNAL3(warningName) #warningName
-#define FOLLY_GCC_DISABLE_WARNING_INTERNAL2(warningName) \
- FOLLY_GCC_DISABLE_WARNING_INTERNAL3(warningName)
-#define FOLLY_GCC_DISABLE_WARNING(warningName) \
- _Pragma(FOLLY_GCC_DISABLE_WARNING_INTERNAL2(GCC diagnostic ignored \
- FOLLY_GCC_DISABLE_WARNING_INTERNAL3(-W##warningName)))
+# define FOLLY_GCC_DISABLE_WARNING_INTERNAL2(warningName) #warningName
+# define FOLLY_GCC_DISABLE_WARNING(warningName) \
+ _Pragma( \
+ FOLLY_GCC_DISABLE_WARNING_INTERNAL2(GCC diagnostic ignored warningName))
// Disable the MSVC warnings.
# define FOLLY_MSVC_DISABLE_WARNING(warningNumber)
#else
# define FOLLY_MSVC_DISABLE_WARNING(warningNumber)
#endif
-#ifdef HAVE_SHADOW_LOCAL_WARNINGS
+#ifdef FOLLY_HAVE_SHADOW_LOCAL_WARNINGS
#define FOLLY_GCC_DISABLE_NEW_SHADOW_WARNINGS \
- FOLLY_GCC_DISABLE_WARNING(shadow-compatible-local) \
- FOLLY_GCC_DISABLE_WARNING(shadow-local)
+ FOLLY_GCC_DISABLE_WARNING("-Wshadow-compatible-local") \
+ FOLLY_GCC_DISABLE_WARNING("-Wshadow-local")
#else
#define FOLLY_GCC_DISABLE_NEW_SHADOW_WARNINGS /* empty */
#endif
-#if defined(__GNUC__) && !defined(__APPLE__) && !__GNUC_PREREQ(4,9)
-// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56019
-// gcc 4.8.x incorrectly placed max_align_t in the root namespace
-// Alias it into std (where it's found in 4.9 and later)
-namespace std { typedef ::max_align_t max_align_t; }
-#endif
-
-// portable version check for clang
-#ifndef __CLANG_PREREQ
-# if defined __clang__ && defined __clang_major__ && defined __clang_minor__
-/* nolint */
-# define __CLANG_PREREQ(maj, min) \
- ((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min))
-# else
-/* nolint */
-# define __CLANG_PREREQ(maj, min) 0
-# endif
-#endif
-
/* Platform specific TLS support
* gcc implements __thread
* msvc implements __declspec(thread)
// the 'std' namespace; the latter uses inline namespaces. Wrap this decision
// up in a macro to make forward-declarations easier.
#if FOLLY_USE_LIBCPP
-#include <__config>
+#include <__config> // @manual
#define FOLLY_NAMESPACE_STD_BEGIN _LIBCPP_BEGIN_NAMESPACE_STD
#define FOLLY_NAMESPACE_STD_END _LIBCPP_END_NAMESPACE_STD
#else
#else
constexpr auto kIsDebug = true;
#endif
-}
+} // namespace folly
// Endianness
namespace folly {
constexpr auto kIsLittleEndian = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__;
#endif
constexpr auto kIsBigEndian = !kIsLittleEndian;
-}
+} // namespace folly
#ifndef FOLLY_SSE
# if defined(__SSE4_2__)
namespace FOLLY_GFLAGS_NAMESPACE { }
namespace gflags {
using namespace FOLLY_GFLAGS_NAMESPACE;
-} // namespace gflags
+} // namespace gflags
#endif
// for TARGET_OS_IPHONE
#ifdef __APPLE__
-#include <TargetConditionals.h>
+#include <TargetConditionals.h> // @manual
#endif
// RTTI may not be enabled for this compilation unit.
namespace folly {
+#if __OBJC__
+constexpr auto kIsObjC = true;
+#else
+constexpr auto kIsObjC = false;
+#endif
+
+#if FOLLY_MOBILE
+constexpr auto kIsMobile = true;
+#else
+constexpr auto kIsMobile = false;
+#endif
+
#if defined(__linux__) && !FOLLY_MOBILE
constexpr auto kIsLinux = true;
#else
#if defined(_WIN32)
constexpr auto kIsWindows = true;
+constexpr auto kMscVer = _MSC_VER;
#else
constexpr auto kIsWindows = false;
+constexpr auto kMscVer = 0;
+#endif
+} // namespace folly
+
+// Define FOLLY_USE_CPP14_CONSTEXPR to be true if the compiler's C++14
+// constexpr support is "good enough".
+#ifndef FOLLY_USE_CPP14_CONSTEXPR
+#if defined(__clang__)
+#define FOLLY_USE_CPP14_CONSTEXPR __cplusplus >= 201300L
+#elif defined(__GNUC__)
+#define FOLLY_USE_CPP14_CONSTEXPR __cplusplus >= 201304L
+#else
+#define FOLLY_USE_CPP14_CONSTEXPR 0 // MSVC?
+#endif
+#endif
+
+#if FOLLY_USE_CPP14_CONSTEXPR
+#define FOLLY_CPP14_CONSTEXPR constexpr
+#else
+#define FOLLY_CPP14_CONSTEXPR inline
+#endif
+
+#if __cpp_coroutines >= 201703L && FOLLY_HAS_INCLUDE(<experimental/coroutine>)
+#define FOLLY_HAS_COROUTINES 1
+#elif _MSC_VER && _RESUMABLE_FUNCTIONS_SUPPORTED
+#define FOLLY_HAS_COROUTINES 1
+#endif
+
+// MSVC 2017.5
+#if __cpp_noexcept_function_type >= 201510 || _MSC_FULL_VER >= 191225816
+#define FOLLY_HAVE_NOEXCEPT_FUNCTION_TYPE 1
#endif
-}
projects / folly.git / blobdiff