forked from OSchip/llvm-project
1562 lines
52 KiB
C++
1562 lines
52 KiB
C++
// -*- C++ -*-
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//===--------------------------- __config ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CONFIG
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#define _LIBCPP_CONFIG
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#if defined(_MSC_VER) && !defined(__clang__)
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# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
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# endif
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#endif
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#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
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#pragma GCC system_header
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#endif
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#ifdef __cplusplus
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#ifdef __GNUC__
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# define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
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// The _GNUC_VER_NEW macro better represents the new GCC versioning scheme
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// introduced in GCC 5.0.
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# define _GNUC_VER_NEW (_GNUC_VER * 10 + __GNUC_PATCHLEVEL__)
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#else
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# define _GNUC_VER 0
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# define _GNUC_VER_NEW 0
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#endif
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#define _LIBCPP_VERSION 12000
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#ifndef _LIBCPP_ABI_VERSION
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# define _LIBCPP_ABI_VERSION 1
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#endif
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#ifndef __STDC_HOSTED__
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# define _LIBCPP_FREESTANDING
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#endif
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#ifndef _LIBCPP_STD_VER
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# if __cplusplus <= 201103L
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# define _LIBCPP_STD_VER 11
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# elif __cplusplus <= 201402L
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# define _LIBCPP_STD_VER 14
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# elif __cplusplus <= 201703L
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# define _LIBCPP_STD_VER 17
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# else
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# define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification
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# endif
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#endif // _LIBCPP_STD_VER
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#if defined(__ELF__)
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# define _LIBCPP_OBJECT_FORMAT_ELF 1
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#elif defined(__MACH__)
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# define _LIBCPP_OBJECT_FORMAT_MACHO 1
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#elif defined(_WIN32)
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# define _LIBCPP_OBJECT_FORMAT_COFF 1
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#elif defined(__wasm__)
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# define _LIBCPP_OBJECT_FORMAT_WASM 1
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#else
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# error Unknown object file format
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#endif
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#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2
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// Change short string representation so that string data starts at offset 0,
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// improving its alignment in some cases.
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# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
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// Fix deque iterator type in order to support incomplete types.
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# define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE
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// Fix undefined behavior in how std::list stores its linked nodes.
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# define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB
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// Fix undefined behavior in how __tree stores its end and parent nodes.
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# define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB
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// Fix undefined behavior in how __hash_table stores its pointer types.
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# define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB
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# define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB
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# define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE
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// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr
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// provided under the alternate keyword __nullptr, which changes the mangling
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// of nullptr_t. This option is ABI incompatible with GCC in C++03 mode.
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# define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR
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// Define the `pointer_safety` enum as a C++11 strongly typed enumeration
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// instead of as a class simulating an enum. If this option is enabled
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// `pointer_safety` and `get_pointer_safety()` will no longer be available
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// in C++03.
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# define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE
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// Define a key function for `bad_function_call` in the library, to centralize
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// its vtable and typeinfo to libc++ rather than having all other libraries
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// using that class define their own copies.
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# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION
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// Enable optimized version of __do_get_(un)signed which avoids redundant copies.
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# define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET
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// Use the smallest possible integer type to represent the index of the variant.
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// Previously libc++ used "unsigned int" exclusively.
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# define _LIBCPP_ABI_VARIANT_INDEX_TYPE_OPTIMIZATION
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// Unstable attempt to provide a more optimized std::function
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# define _LIBCPP_ABI_OPTIMIZED_FUNCTION
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// All the regex constants must be distinct and nonzero.
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# define _LIBCPP_ABI_REGEX_CONSTANTS_NONZERO
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// Re-worked external template instantiations for std::string with a focus on
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// performance and fast-path inlining.
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# define _LIBCPP_ABI_STRING_OPTIMIZED_EXTERNAL_INSTANTIATION
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// Enable clang::trivial_abi on std::unique_ptr.
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# define _LIBCPP_ABI_ENABLE_UNIQUE_PTR_TRIVIAL_ABI
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// Enable clang::trivial_abi on std::shared_ptr and std::weak_ptr
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# define _LIBCPP_ABI_ENABLE_SHARED_PTR_TRIVIAL_ABI
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#elif _LIBCPP_ABI_VERSION == 1
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# if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
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// Enable compiling copies of now inline methods into the dylib to support
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// applications compiled against older libraries. This is unnecessary with
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// COFF dllexport semantics, since dllexport forces a non-inline definition
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// of inline functions to be emitted anyway. Our own non-inline copy would
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// conflict with the dllexport-emitted copy, so we disable it.
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# define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS
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# endif
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// Feature macros for disabling pre ABI v1 features. All of these options
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// are deprecated.
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# if defined(__FreeBSD__)
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# define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
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# endif
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#endif
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#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
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#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \
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use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead
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#endif
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#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y
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#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y)
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#ifndef _LIBCPP_ABI_NAMESPACE
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# define _LIBCPP_ABI_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION)
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#endif
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#if __cplusplus < 201103L
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#define _LIBCPP_CXX03_LANG
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#endif
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#ifndef __has_attribute
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#define __has_attribute(__x) 0
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#endif
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#ifndef __has_builtin
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#define __has_builtin(__x) 0
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#endif
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#ifndef __has_extension
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#define __has_extension(__x) 0
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#endif
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#ifndef __has_feature
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#define __has_feature(__x) 0
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#endif
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#ifndef __has_cpp_attribute
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#define __has_cpp_attribute(__x) 0
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#endif
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// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by
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// the compiler and '1' otherwise.
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#ifndef __is_identifier
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#define __is_identifier(__x) 1
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#endif
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#ifndef __has_declspec_attribute
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#define __has_declspec_attribute(__x) 0
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#endif
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#define __has_keyword(__x) !(__is_identifier(__x))
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#ifndef __has_include
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#define __has_include(...) 0
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#endif
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#if defined(__clang__)
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# define _LIBCPP_COMPILER_CLANG
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# ifndef __apple_build_version__
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# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
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# endif
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#elif defined(__GNUC__)
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# define _LIBCPP_COMPILER_GCC
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#elif defined(_MSC_VER)
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# define _LIBCPP_COMPILER_MSVC
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#elif defined(__IBMCPP__)
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# define _LIBCPP_COMPILER_IBM
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#endif
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#if defined(_LIBCPP_COMPILER_GCC) && __cplusplus < 201103L
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#error "libc++ does not support using GCC with C++03. Please enable C++11"
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#endif
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// FIXME: ABI detection should be done via compiler builtin macros. This
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// is just a placeholder until Clang implements such macros. For now assume
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// that Windows compilers pretending to be MSVC++ target the Microsoft ABI,
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// and allow the user to explicitly specify the ABI to handle cases where this
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// heuristic falls short.
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#if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT)
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# error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined"
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#elif defined(_LIBCPP_ABI_FORCE_ITANIUM)
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# define _LIBCPP_ABI_ITANIUM
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#elif defined(_LIBCPP_ABI_FORCE_MICROSOFT)
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# define _LIBCPP_ABI_MICROSOFT
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#else
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# if defined(_WIN32) && defined(_MSC_VER)
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# define _LIBCPP_ABI_MICROSOFT
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# else
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# define _LIBCPP_ABI_ITANIUM
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# endif
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#endif
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#if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME)
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# define _LIBCPP_ABI_VCRUNTIME
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#endif
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// Need to detect which libc we're using if we're on Linux.
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#if defined(__linux__)
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# include <features.h>
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# if defined(__GLIBC_PREREQ)
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# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b)
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# else
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# define _LIBCPP_GLIBC_PREREQ(a, b) 0
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# endif // defined(__GLIBC_PREREQ)
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#endif // defined(__linux__)
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#ifdef __LITTLE_ENDIAN__
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# if __LITTLE_ENDIAN__
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# define _LIBCPP_LITTLE_ENDIAN
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# endif // __LITTLE_ENDIAN__
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#endif // __LITTLE_ENDIAN__
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#ifdef __BIG_ENDIAN__
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# if __BIG_ENDIAN__
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# define _LIBCPP_BIG_ENDIAN
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# endif // __BIG_ENDIAN__
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#endif // __BIG_ENDIAN__
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#ifdef __BYTE_ORDER__
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# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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# define _LIBCPP_LITTLE_ENDIAN
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# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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# define _LIBCPP_BIG_ENDIAN
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# endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#endif // __BYTE_ORDER__
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#ifdef __FreeBSD__
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# include <sys/endian.h>
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# include <osreldate.h>
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# if _BYTE_ORDER == _LITTLE_ENDIAN
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# define _LIBCPP_LITTLE_ENDIAN
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# else // _BYTE_ORDER == _LITTLE_ENDIAN
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# define _LIBCPP_BIG_ENDIAN
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# endif // _BYTE_ORDER == _LITTLE_ENDIAN
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# ifndef __LONG_LONG_SUPPORTED
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# define _LIBCPP_HAS_NO_LONG_LONG
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# endif // __LONG_LONG_SUPPORTED
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#endif // __FreeBSD__
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#ifdef __NetBSD__
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# include <sys/endian.h>
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# if _BYTE_ORDER == _LITTLE_ENDIAN
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# define _LIBCPP_LITTLE_ENDIAN
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# else // _BYTE_ORDER == _LITTLE_ENDIAN
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# define _LIBCPP_BIG_ENDIAN
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# endif // _BYTE_ORDER == _LITTLE_ENDIAN
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#endif // __NetBSD__
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#if defined(_WIN32)
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# define _LIBCPP_WIN32API
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# define _LIBCPP_LITTLE_ENDIAN
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# define _LIBCPP_SHORT_WCHAR 1
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// Both MinGW and native MSVC provide a "MSVC"-like environment
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# define _LIBCPP_MSVCRT_LIKE
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// If mingw not explicitly detected, assume using MS C runtime only if
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// a MS compatibility version is specified.
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# if defined(_MSC_VER) && !defined(__MINGW32__)
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# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library
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# endif
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# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__))
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# define _LIBCPP_HAS_BITSCAN64
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# endif
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# define _LIBCPP_HAS_OPEN_WITH_WCHAR
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# if defined(_LIBCPP_MSVCRT)
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# define _LIBCPP_HAS_QUICK_EXIT
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# endif
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// Some CRT APIs are unavailable to store apps
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# if defined(WINAPI_FAMILY)
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# include <winapifamily.h>
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# if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \
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(!defined(WINAPI_PARTITION_SYSTEM) || \
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!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM))
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# define _LIBCPP_WINDOWS_STORE_APP
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# endif
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# endif
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#endif // defined(_WIN32)
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#ifdef __sun__
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# include <sys/isa_defs.h>
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# ifdef _LITTLE_ENDIAN
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# define _LIBCPP_LITTLE_ENDIAN
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# else
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# define _LIBCPP_BIG_ENDIAN
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# endif
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#endif // __sun__
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#if defined(__CloudABI__)
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// Certain architectures provide arc4random(). Prefer using
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// arc4random() over /dev/{u,}random to make it possible to obtain
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// random data even when using sandboxing mechanisms such as chroots,
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// Capsicum, etc.
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# define _LIBCPP_USING_ARC4_RANDOM
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#elif defined(__Fuchsia__) || defined(__wasi__)
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# define _LIBCPP_USING_GETENTROPY
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#elif defined(__native_client__)
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// NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access,
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// including accesses to the special files under /dev. C++11's
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// std::random_device is instead exposed through a NaCl syscall.
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# define _LIBCPP_USING_NACL_RANDOM
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#elif defined(_LIBCPP_WIN32API)
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# define _LIBCPP_USING_WIN32_RANDOM
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#else
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# define _LIBCPP_USING_DEV_RANDOM
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#endif
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#if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN)
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# include <endian.h>
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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# define _LIBCPP_LITTLE_ENDIAN
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# elif __BYTE_ORDER == __BIG_ENDIAN
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# define _LIBCPP_BIG_ENDIAN
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# else // __BYTE_ORDER == __BIG_ENDIAN
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# error unable to determine endian
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# endif
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#endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN)
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#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC)
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# define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
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#else
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# define _LIBCPP_NO_CFI
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#endif
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#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
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# if defined(__FreeBSD__)
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# define _LIBCPP_HAS_ALIGNED_ALLOC
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# define _LIBCPP_HAS_QUICK_EXIT
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# if __FreeBSD_version >= 1300064 || \
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(__FreeBSD_version >= 1201504 && __FreeBSD_version < 1300000)
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# define _LIBCPP_HAS_TIMESPEC_GET
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# endif
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# elif defined(__BIONIC__)
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# if __ANDROID_API__ >= 21
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# define _LIBCPP_HAS_QUICK_EXIT
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|
# endif
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|
# if __ANDROID_API__ >= 28
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# define _LIBCPP_HAS_ALIGNED_ALLOC
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|
# endif
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|
# if __ANDROID_API__ >= 29
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|
# define _LIBCPP_HAS_TIMESPEC_GET
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|
# endif
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|
# elif defined(__Fuchsia__) || defined(__wasi__) || defined(__NetBSD__)
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|
# define _LIBCPP_HAS_ALIGNED_ALLOC
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|
# define _LIBCPP_HAS_QUICK_EXIT
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|
# define _LIBCPP_HAS_TIMESPEC_GET
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|
# elif defined(__linux__)
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|
# if !defined(_LIBCPP_HAS_MUSL_LIBC)
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|
# if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
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|
# define _LIBCPP_HAS_QUICK_EXIT
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|
# endif
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|
# if _LIBCPP_GLIBC_PREREQ(2, 17)
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|
# define _LIBCPP_HAS_ALIGNED_ALLOC
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|
# define _LIBCPP_HAS_TIMESPEC_GET
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|
# endif
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|
# else // defined(_LIBCPP_HAS_MUSL_LIBC)
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|
# define _LIBCPP_HAS_ALIGNED_ALLOC
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|
# define _LIBCPP_HAS_QUICK_EXIT
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|
# define _LIBCPP_HAS_TIMESPEC_GET
|
|
# endif
|
|
# elif defined(__APPLE__)
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|
// timespec_get and aligned_alloc were introduced in macOS 10.15 and
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|
// aligned releases
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|
# if (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101500 || \
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|
__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 130000 || \
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|
__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ >= 130000 || \
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|
__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ >= 60000)
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|
# define _LIBCPP_HAS_ALIGNED_ALLOC
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|
# define _LIBCPP_HAS_TIMESPEC_GET
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|
# endif
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|
# endif // __APPLE__
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|
#endif
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|
#ifndef _LIBCPP_CXX03_LANG
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|
# define _LIBCPP_ALIGNOF(_Tp) alignof(_Tp)
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|
#elif defined(_LIBCPP_COMPILER_CLANG)
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|
# define _LIBCPP_ALIGNOF(_Tp) _Alignof(_Tp)
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|
#else
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|
// This definition is potentially buggy, but it's only taken with GCC in C++03,
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|
// which we barely support anyway. See llvm.org/PR39713
|
|
# define _LIBCPP_ALIGNOF(_Tp) __alignof(_Tp)
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#endif
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#define _LIBCPP_PREFERRED_ALIGNOF(_Tp) __alignof(_Tp)
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#if defined(_LIBCPP_COMPILER_CLANG)
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|
#if defined(_LIBCPP_ALTERNATE_STRING_LAYOUT)
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|
# error _LIBCPP_ALTERNATE_STRING_LAYOUT is deprecated, please use _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT instead
|
|
#endif
|
|
#if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \
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|
(!defined(__arm__) || __ARM_ARCH_7K__ >= 2)
|
|
# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
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|
#endif
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|
#if __has_feature(cxx_alignas)
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|
# define _ALIGNAS_TYPE(x) alignas(x)
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|
# define _ALIGNAS(x) alignas(x)
|
|
#else
|
|
# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x))))
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|
# define _ALIGNAS(x) __attribute__((__aligned__(x)))
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|
#endif
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|
|
|
#if __cplusplus < 201103L
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|
typedef __char16_t char16_t;
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|
typedef __char32_t char32_t;
|
|
#endif
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|
|
#if !__has_feature(cxx_exceptions)
|
|
# define _LIBCPP_NO_EXCEPTIONS
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_strong_enums))
|
|
#define _LIBCPP_HAS_NO_STRONG_ENUMS
|
|
#endif
|
|
|
|
#if __has_feature(cxx_attributes)
|
|
# define _LIBCPP_NORETURN [[noreturn]]
|
|
#else
|
|
# define _LIBCPP_NORETURN __attribute__ ((noreturn))
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_lambdas))
|
|
#define _LIBCPP_HAS_NO_LAMBDAS
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_nullptr))
|
|
# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR)
|
|
# define nullptr __nullptr
|
|
# else
|
|
# define _LIBCPP_HAS_NO_NULLPTR
|
|
# endif
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_rvalue_references))
|
|
#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_auto_type))
|
|
#define _LIBCPP_HAS_NO_AUTO_TYPE
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_variadic_templates))
|
|
#define _LIBCPP_HAS_NO_VARIADICS
|
|
#endif
|
|
|
|
// Objective-C++ features (opt-in)
|
|
#if __has_feature(objc_arc)
|
|
#define _LIBCPP_HAS_OBJC_ARC
|
|
#endif
|
|
|
|
#if __has_feature(objc_arc_weak)
|
|
#define _LIBCPP_HAS_OBJC_ARC_WEAK
|
|
#endif
|
|
|
|
#if __has_extension(blocks)
|
|
# define _LIBCPP_HAS_EXTENSION_BLOCKS
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_HAS_EXTENSION_BLOCKS) && defined(__APPLE__)
|
|
# define _LIBCPP_HAS_BLOCKS_RUNTIME
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_relaxed_constexpr))
|
|
#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_variable_templates))
|
|
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
|
|
#endif
|
|
|
|
#if !(__has_feature(cxx_noexcept))
|
|
#define _LIBCPP_HAS_NO_NOEXCEPT
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
|
|
#define _LIBCPP_HAS_NO_ASAN
|
|
#endif
|
|
|
|
// Allow for build-time disabling of unsigned integer sanitization
|
|
#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
|
|
#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
|
|
#endif
|
|
|
|
#if __has_builtin(__builtin_launder)
|
|
#define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER
|
|
#endif
|
|
|
|
#if __has_builtin(__builtin_constant_p)
|
|
#define _LIBCPP_COMPILER_HAS_BUILTIN_CONSTANT_P
|
|
#endif
|
|
|
|
#if !__is_identifier(__has_unique_object_representations)
|
|
#define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS
|
|
#endif
|
|
|
|
#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
|
|
|
|
// Literal operators ""d and ""y are supported starting with LLVM Clang 8 and AppleClang 10.0.1
|
|
#if (defined(_LIBCPP_CLANG_VER) && _LIBCPP_CLANG_VER < 800) || \
|
|
(defined(__apple_build_version__) && __apple_build_version__ < 10010000)
|
|
#define _LIBCPP_HAS_NO_CXX20_CHRONO_LITERALS
|
|
#endif
|
|
|
|
#define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__
|
|
|
|
#elif defined(_LIBCPP_COMPILER_GCC)
|
|
|
|
#define _ALIGNAS(x) __attribute__((__aligned__(x)))
|
|
#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x))))
|
|
|
|
#define _LIBCPP_NORETURN __attribute__((noreturn))
|
|
|
|
#if !__EXCEPTIONS
|
|
# define _LIBCPP_NO_EXCEPTIONS
|
|
#endif
|
|
|
|
// Determine if GCC supports relaxed constexpr
|
|
#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
|
|
#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
|
|
#endif
|
|
|
|
// GCC 5 supports variable templates
|
|
#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L
|
|
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
|
|
#define _LIBCPP_HAS_NO_ASAN
|
|
#endif
|
|
|
|
#if _GNUC_VER >= 700
|
|
#define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER
|
|
#define _LIBCPP_COMPILER_HAS_BUILTIN_CONSTANT_P
|
|
#define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS
|
|
#endif
|
|
|
|
#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
|
|
|
|
#define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__
|
|
|
|
#elif defined(_LIBCPP_COMPILER_MSVC)
|
|
|
|
#define _LIBCPP_TOSTRING2(x) #x
|
|
#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)
|
|
#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x))
|
|
|
|
#if _MSC_VER < 1900
|
|
#error "MSVC versions prior to Visual Studio 2015 are not supported"
|
|
#endif
|
|
|
|
#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
|
|
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
|
|
#define __alignof__ __alignof
|
|
#define _LIBCPP_NORETURN __declspec(noreturn)
|
|
#define _ALIGNAS(x) __declspec(align(x))
|
|
#define _ALIGNAS_TYPE(x) alignas(x)
|
|
|
|
#define _LIBCPP_WEAK
|
|
|
|
#define _LIBCPP_HAS_NO_ASAN
|
|
|
|
#define _LIBCPP_ALWAYS_INLINE __forceinline
|
|
|
|
#define _LIBCPP_HAS_NO_VECTOR_EXTENSION
|
|
|
|
#define _LIBCPP_DISABLE_EXTENSION_WARNING
|
|
|
|
#elif defined(_LIBCPP_COMPILER_IBM)
|
|
|
|
#define _ALIGNAS(x) __attribute__((__aligned__(x)))
|
|
#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x))))
|
|
#define _ATTRIBUTE(x) __attribute__((x))
|
|
#define _LIBCPP_NORETURN __attribute__((noreturn))
|
|
|
|
#define _LIBCPP_HAS_NO_UNICODE_CHARS
|
|
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
|
|
|
|
#if defined(_AIX)
|
|
#define __MULTILOCALE_API
|
|
#endif
|
|
|
|
#define _LIBCPP_HAS_NO_ASAN
|
|
|
|
#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
|
|
|
|
#define _LIBCPP_HAS_NO_VECTOR_EXTENSION
|
|
|
|
#define _LIBCPP_DISABLE_EXTENSION_WARNING
|
|
|
|
#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
|
|
|
|
#if defined(_LIBCPP_OBJECT_FORMAT_COFF)
|
|
|
|
#ifdef _DLL
|
|
# define _LIBCPP_CRT_FUNC __declspec(dllimport)
|
|
#else
|
|
# define _LIBCPP_CRT_FUNC
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# define _LIBCPP_DLL_VIS
|
|
# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
|
|
# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
|
|
# define _LIBCPP_OVERRIDABLE_FUNC_VIS
|
|
# define _LIBCPP_EXPORTED_FROM_ABI
|
|
#elif defined(_LIBCPP_BUILDING_LIBRARY)
|
|
# define _LIBCPP_DLL_VIS __declspec(dllexport)
|
|
# if defined(__MINGW32__)
|
|
# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
|
|
# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
|
|
# else
|
|
# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
|
|
# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
|
|
# endif
|
|
# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
|
|
# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllexport)
|
|
#else
|
|
# define _LIBCPP_DLL_VIS __declspec(dllimport)
|
|
# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
|
|
# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
|
|
# define _LIBCPP_OVERRIDABLE_FUNC_VIS
|
|
# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllimport)
|
|
#endif
|
|
|
|
#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS
|
|
#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS
|
|
#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS
|
|
#define _LIBCPP_HIDDEN
|
|
#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
|
|
#define _LIBCPP_TEMPLATE_VIS
|
|
#define _LIBCPP_ENUM_VIS
|
|
|
|
#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF)
|
|
|
|
#ifndef _LIBCPP_HIDDEN
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
|
|
# else
|
|
# define _LIBCPP_HIDDEN
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
// The inline should be removed once PR32114 is resolved
|
|
# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN
|
|
# else
|
|
# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_FUNC_VIS
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_FUNC_VIS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_TYPE_VIS
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_TYPE_VIS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_TEMPLATE_VIS
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# if __has_attribute(__type_visibility__)
|
|
# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default")))
|
|
# endif
|
|
# else
|
|
# define _LIBCPP_TEMPLATE_VIS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_EXPORTED_FROM_ABI
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_EXPORTED_FROM_ABI
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
|
|
#define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_EXCEPTION_ABI
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
|
|
# define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_EXCEPTION_ABI
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_ENUM_VIS
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
|
|
# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_ENUM_VIS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
|
|
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
|
|
# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default")))
|
|
# else
|
|
# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
|
|
#define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
|
|
#endif
|
|
|
|
#if __has_attribute(internal_linkage)
|
|
# define _LIBCPP_INTERNAL_LINKAGE __attribute__ ((internal_linkage))
|
|
#else
|
|
# define _LIBCPP_INTERNAL_LINKAGE _LIBCPP_ALWAYS_INLINE
|
|
#endif
|
|
|
|
#if __has_attribute(exclude_from_explicit_instantiation)
|
|
# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__ ((__exclude_from_explicit_instantiation__))
|
|
#else
|
|
// Try to approximate the effect of exclude_from_explicit_instantiation
|
|
// (which is that entities are not assumed to be provided by explicit
|
|
// template instantiations in the dylib) by always inlining those entities.
|
|
# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION _LIBCPP_ALWAYS_INLINE
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU
|
|
# ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU_BY_DEFAULT
|
|
# define _LIBCPP_HIDE_FROM_ABI_PER_TU 0
|
|
# else
|
|
# define _LIBCPP_HIDE_FROM_ABI_PER_TU 1
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION
|
|
# ifdef _LIBCPP_OBJECT_FORMAT_COFF // Windows binaries can't merge typeinfos.
|
|
# define _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION 2
|
|
# else
|
|
// TODO: This isn't strictly correct on ELF platforms due to llvm.org/PR37398
|
|
// And we should consider defaulting to OFF.
|
|
# define _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION 1
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HIDE_FROM_ABI
|
|
# if _LIBCPP_HIDE_FROM_ABI_PER_TU
|
|
# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_INTERNAL_LINKAGE
|
|
# else
|
|
# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_BUILDING_LIBRARY
|
|
# if _LIBCPP_ABI_VERSION > 1
|
|
# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI
|
|
# else
|
|
# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
|
# endif
|
|
#else
|
|
# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI
|
|
#endif
|
|
|
|
// Just so we can migrate to the new macros gradually.
|
|
#define _LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
|
|
|
|
// Inline namespaces are available in Clang/GCC/MSVC regardless of C++ dialect.
|
|
#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_ABI_NAMESPACE {
|
|
#define _LIBCPP_END_NAMESPACE_STD } }
|
|
#define _VSTD std::_LIBCPP_ABI_NAMESPACE
|
|
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
|
|
|
|
#if _LIBCPP_STD_VER >= 17
|
|
#define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \
|
|
_LIBCPP_BEGIN_NAMESPACE_STD inline namespace __fs { namespace filesystem {
|
|
#else
|
|
#define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \
|
|
_LIBCPP_BEGIN_NAMESPACE_STD namespace __fs { namespace filesystem {
|
|
#endif
|
|
|
|
#define _LIBCPP_END_NAMESPACE_FILESYSTEM \
|
|
_LIBCPP_END_NAMESPACE_STD } }
|
|
|
|
#define _VSTD_FS _VSTD::__fs::filesystem
|
|
|
|
#ifndef _LIBCPP_PREFERRED_OVERLOAD
|
|
# if __has_attribute(__enable_if__)
|
|
# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, "")))
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HAS_NO_NOEXCEPT
|
|
# define _NOEXCEPT noexcept
|
|
# define _NOEXCEPT_(x) noexcept(x)
|
|
#else
|
|
# define _NOEXCEPT throw()
|
|
# define _NOEXCEPT_(x)
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
|
|
typedef unsigned short char16_t;
|
|
typedef unsigned int char32_t;
|
|
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
|
|
|
|
#ifndef __SIZEOF_INT128__
|
|
#define _LIBCPP_HAS_NO_INT128
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_CXX03_LANG
|
|
# define static_assert(...) _Static_assert(__VA_ARGS__)
|
|
# define decltype(...) __decltype(__VA_ARGS__)
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
#ifdef _LIBCPP_CXX03_LANG
|
|
# define _LIBCPP_CONSTEXPR
|
|
#else
|
|
# define _LIBCPP_CONSTEXPR constexpr
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_CXX03_LANG
|
|
# define _LIBCPP_DEFAULT {}
|
|
#else
|
|
# define _LIBCPP_DEFAULT = default;
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_CXX03_LANG
|
|
# define _LIBCPP_EQUAL_DELETE
|
|
#else
|
|
# define _LIBCPP_EQUAL_DELETE = delete
|
|
#endif
|
|
|
|
#ifdef __GNUC__
|
|
# define _LIBCPP_NOALIAS __attribute__((__malloc__))
|
|
#else
|
|
# define _LIBCPP_NOALIAS
|
|
#endif
|
|
|
|
#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \
|
|
(!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions
|
|
# define _LIBCPP_EXPLICIT explicit
|
|
#else
|
|
# define _LIBCPP_EXPLICIT
|
|
#endif
|
|
|
|
#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete)
|
|
#define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
|
|
# define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
|
|
# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
|
|
__lx __v_; \
|
|
_LIBCPP_INLINE_VISIBILITY x(__lx __v) : __v_(__v) {} \
|
|
_LIBCPP_INLINE_VISIBILITY explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
|
|
_LIBCPP_INLINE_VISIBILITY operator int() const {return __v_;} \
|
|
};
|
|
#else // _LIBCPP_HAS_NO_STRONG_ENUMS
|
|
# define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x
|
|
# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
|
|
#endif // _LIBCPP_HAS_NO_STRONG_ENUMS
|
|
|
|
#ifdef _LIBCPP_DEBUG
|
|
# if _LIBCPP_DEBUG == 0
|
|
# define _LIBCPP_DEBUG_LEVEL 1
|
|
# elif _LIBCPP_DEBUG == 1
|
|
# define _LIBCPP_DEBUG_LEVEL 2
|
|
# else
|
|
# error Supported values for _LIBCPP_DEBUG are 0 and 1
|
|
# endif
|
|
# if !defined(_LIBCPP_BUILDING_LIBRARY)
|
|
# define _LIBCPP_EXTERN_TEMPLATE(...)
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_DEBUG_LEVEL
|
|
# define _LIBCPP_DEBUG_LEVEL 0
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE
|
|
#define _LIBCPP_EXTERN_TEMPLATE(...)
|
|
#define _LIBCPP_EXTERN_TEMPLATE2(...)
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_EXTERN_TEMPLATE
|
|
#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_EXTERN_TEMPLATE2
|
|
#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_EXTERN_TEMPLATE_DEFINE
|
|
#define _LIBCPP_EXTERN_TEMPLATE_DEFINE(...) template __VA_ARGS__;
|
|
#endif
|
|
|
|
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT_LIKE) || \
|
|
defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__)
|
|
#define _LIBCPP_LOCALE__L_EXTENSIONS 1
|
|
#endif
|
|
|
|
#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
|
|
// Most unix variants have catopen. These are the specific ones that don't.
|
|
# if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION)
|
|
# define _LIBCPP_HAS_CATOPEN 1
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef __FreeBSD__
|
|
#define _DECLARE_C99_LDBL_MATH 1
|
|
#endif
|
|
|
|
// If we are getting operator new from the MSVC CRT, then allocation overloads
|
|
// for align_val_t were added in 19.12, aka VS 2017 version 15.3.
|
|
#if defined(_LIBCPP_MSVCRT) && defined(_MSC_VER) && _MSC_VER < 1912
|
|
# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
|
|
#elif defined(_LIBCPP_ABI_VCRUNTIME) && !defined(__cpp_aligned_new)
|
|
// We're deferring to Microsoft's STL to provide aligned new et al. We don't
|
|
// have it unless the language feature test macro is defined.
|
|
# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
|
|
#endif
|
|
|
|
#if defined(__APPLE__)
|
|
# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
|
|
defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
|
|
# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
|
|
# endif
|
|
#endif // defined(__APPLE__)
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \
|
|
(defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || \
|
|
(!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606))
|
|
# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
|
|
#endif
|
|
|
|
#if defined(__APPLE__) || defined(__FreeBSD__)
|
|
#define _LIBCPP_HAS_DEFAULTRUNELOCALE
|
|
#endif
|
|
|
|
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
|
|
#define _LIBCPP_WCTYPE_IS_MASK
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER <= 17 || !defined(__cpp_char8_t)
|
|
#define _LIBCPP_NO_HAS_CHAR8_T
|
|
#endif
|
|
|
|
// Deprecation macros.
|
|
//
|
|
// Deprecations warnings are always enabled, except when users explicitly opt-out
|
|
// by defining _LIBCPP_DISABLE_DEPRECATION_WARNINGS.
|
|
#if !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS)
|
|
# if __has_attribute(deprecated)
|
|
# define _LIBCPP_DEPRECATED __attribute__ ((deprecated))
|
|
# elif _LIBCPP_STD_VER > 11
|
|
# define _LIBCPP_DEPRECATED [[deprecated]]
|
|
# else
|
|
# define _LIBCPP_DEPRECATED
|
|
# endif
|
|
#else
|
|
# define _LIBCPP_DEPRECATED
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_CXX03_LANG)
|
|
# define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED
|
|
#else
|
|
# define _LIBCPP_DEPRECATED_IN_CXX11
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER >= 14
|
|
# define _LIBCPP_DEPRECATED_IN_CXX14 _LIBCPP_DEPRECATED
|
|
#else
|
|
# define _LIBCPP_DEPRECATED_IN_CXX14
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER >= 17
|
|
# define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED
|
|
#else
|
|
# define _LIBCPP_DEPRECATED_IN_CXX17
|
|
#endif
|
|
|
|
// Macros to enter and leave a state where deprecation warnings are suppressed.
|
|
#if !defined(_LIBCPP_SUPPRESS_DEPRECATED_PUSH) && \
|
|
(defined(_LIBCPP_COMPILER_CLANG) || defined(_LIBCPP_COMPILER_GCC))
|
|
# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH \
|
|
_Pragma("GCC diagnostic push") \
|
|
_Pragma("GCC diagnostic ignored \"-Wdeprecated\"")
|
|
# define _LIBCPP_SUPPRESS_DEPRECATED_POP \
|
|
_Pragma("GCC diagnostic pop")
|
|
#endif
|
|
#if !defined(_LIBCPP_SUPPRESS_DEPRECATED_PUSH)
|
|
# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH
|
|
# define _LIBCPP_SUPPRESS_DEPRECATED_POP
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER <= 11
|
|
# define _LIBCPP_EXPLICIT_AFTER_CXX11
|
|
#else
|
|
# define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
|
|
#else
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX11
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr
|
|
#else
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX14
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX17 constexpr
|
|
#else
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX17
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 17 && \
|
|
!defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) && \
|
|
!defined(_LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED)
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX17_WITH_IS_CONSTANT_EVALUATED constexpr
|
|
#else
|
|
# define _LIBCPP_CONSTEXPR_AFTER_CXX17_WITH_IS_CONSTANT_EVALUATED
|
|
#endif
|
|
|
|
// The _LIBCPP_NODISCARD_ATTRIBUTE should only be used to define other
|
|
// NODISCARD macros to the correct attribute.
|
|
#if __has_cpp_attribute(nodiscard) || defined(_LIBCPP_COMPILER_MSVC)
|
|
# define _LIBCPP_NODISCARD_ATTRIBUTE [[nodiscard]]
|
|
#elif defined(_LIBCPP_COMPILER_CLANG) && !defined(_LIBCPP_CXX03_LANG)
|
|
# define _LIBCPP_NODISCARD_ATTRIBUTE [[clang::warn_unused_result]]
|
|
#else
|
|
// We can't use GCC's [[gnu::warn_unused_result]] and
|
|
// __attribute__((warn_unused_result)), because GCC does not silence them via
|
|
// (void) cast.
|
|
# define _LIBCPP_NODISCARD_ATTRIBUTE
|
|
#endif
|
|
|
|
// _LIBCPP_NODISCARD_EXT may be used to apply [[nodiscard]] to entities not
|
|
// specified as such as an extension.
|
|
#if defined(_LIBCPP_ENABLE_NODISCARD) && !defined(_LIBCPP_DISABLE_NODISCARD_EXT)
|
|
# define _LIBCPP_NODISCARD_EXT _LIBCPP_NODISCARD_ATTRIBUTE
|
|
#else
|
|
# define _LIBCPP_NODISCARD_EXT
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_DISABLE_NODISCARD_AFTER_CXX17) && \
|
|
(_LIBCPP_STD_VER > 17 || defined(_LIBCPP_ENABLE_NODISCARD))
|
|
# define _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_NODISCARD_ATTRIBUTE
|
|
#else
|
|
# define _LIBCPP_NODISCARD_AFTER_CXX17
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && defined(__cpp_inline_variables) && (__cpp_inline_variables >= 201606L)
|
|
# define _LIBCPP_INLINE_VAR inline
|
|
#else
|
|
# define _LIBCPP_INLINE_VAR
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x)
|
|
#else
|
|
# define _LIBCPP_EXPLICIT_MOVE(x) (x)
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_CONSTEXPR_IF_NODEBUG
|
|
#if defined(_LIBCPP_DEBUG) || defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
|
|
#define _LIBCPP_CONSTEXPR_IF_NODEBUG
|
|
#else
|
|
#define _LIBCPP_CONSTEXPR_IF_NODEBUG constexpr
|
|
#endif
|
|
#endif
|
|
|
|
#if __has_attribute(no_destroy)
|
|
# define _LIBCPP_NO_DESTROY __attribute__((__no_destroy__))
|
|
#else
|
|
# define _LIBCPP_NO_DESTROY
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HAS_NO_ASAN
|
|
_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
|
|
const void *, const void *, const void *, const void *);
|
|
#endif
|
|
|
|
// Try to find out if RTTI is disabled.
|
|
#if defined(_LIBCPP_COMPILER_CLANG) && !__has_feature(cxx_rtti)
|
|
# define _LIBCPP_NO_RTTI
|
|
#elif defined(__GNUC__) && !defined(__GXX_RTTI)
|
|
# define _LIBCPP_NO_RTTI
|
|
#elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI)
|
|
# define _LIBCPP_NO_RTTI
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_WEAK
|
|
#define _LIBCPP_WEAK __attribute__((__weak__))
|
|
#endif
|
|
|
|
// Thread API
|
|
#if !defined(_LIBCPP_HAS_NO_THREADS) && \
|
|
!defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \
|
|
!defined(_LIBCPP_HAS_THREAD_API_WIN32) && \
|
|
!defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
|
|
# if defined(__FreeBSD__) || \
|
|
defined(__wasi__) || \
|
|
defined(__NetBSD__) || \
|
|
defined(__linux__) || \
|
|
defined(__GNU__) || \
|
|
defined(__APPLE__) || \
|
|
defined(__CloudABI__) || \
|
|
defined(__sun__) || \
|
|
(defined(__MINGW32__) && __has_include(<pthread.h>))
|
|
# define _LIBCPP_HAS_THREAD_API_PTHREAD
|
|
# elif defined(__Fuchsia__)
|
|
// TODO(44575): Switch to C11 thread API when possible.
|
|
# define _LIBCPP_HAS_THREAD_API_PTHREAD
|
|
# elif defined(_LIBCPP_WIN32API)
|
|
# define _LIBCPP_HAS_THREAD_API_WIN32
|
|
# else
|
|
# error "No thread API"
|
|
# endif // _LIBCPP_HAS_THREAD_API
|
|
#endif // _LIBCPP_HAS_NO_THREADS
|
|
|
|
#if defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
|
|
#if defined(__ANDROID__) && __ANDROID_API__ >= 30
|
|
#define _LIBCPP_HAS_COND_CLOCKWAIT
|
|
#elif defined(_LIBCPP_GLIBC_PREREQ)
|
|
#if _LIBCPP_GLIBC_PREREQ(2, 30)
|
|
#define _LIBCPP_HAS_COND_CLOCKWAIT
|
|
#endif
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
|
|
#error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \
|
|
_LIBCPP_HAS_NO_THREADS is not defined.
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
|
|
#error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \
|
|
_LIBCPP_HAS_NO_THREADS is defined.
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS)
|
|
#error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \
|
|
_LIBCPP_HAS_NO_THREADS is defined.
|
|
#endif
|
|
|
|
#if defined(__STDCPP_THREADS__) && defined(_LIBCPP_HAS_NO_THREADS)
|
|
#error _LIBCPP_HAS_NO_THREADS cannot be set when __STDCPP_THREADS__ is set.
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_THREADS) && !defined(__STDCPP_THREADS__)
|
|
#define __STDCPP_THREADS__ 1
|
|
#endif
|
|
|
|
// The glibc and Bionic implementation of pthreads implements
|
|
// pthread_mutex_destroy as nop for regular mutexes. Additionally, Win32
|
|
// mutexes have no destroy mechanism.
|
|
//
|
|
// This optimization can't be performed on Apple platforms, where
|
|
// pthread_mutex_destroy can allow the kernel to release resources.
|
|
// See https://llvm.org/D64298 for details.
|
|
//
|
|
// TODO(EricWF): Enable this optimization on Bionic after speaking to their
|
|
// respective stakeholders.
|
|
#if (defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && defined(__GLIBC__)) \
|
|
|| (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) \
|
|
|| defined(_LIBCPP_HAS_THREAD_API_WIN32)
|
|
# define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION
|
|
#endif
|
|
|
|
// Destroying a condvar is a nop on Windows.
|
|
//
|
|
// This optimization can't be performed on Apple platforms, where
|
|
// pthread_cond_destroy can allow the kernel to release resources.
|
|
// See https://llvm.org/D64298 for details.
|
|
//
|
|
// TODO(EricWF): This is potentially true for some pthread implementations
|
|
// as well.
|
|
#if (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) || \
|
|
defined(_LIBCPP_HAS_THREAD_API_WIN32)
|
|
# define _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION
|
|
#endif
|
|
|
|
// Systems that use capability-based security (FreeBSD with Capsicum,
|
|
// Nuxi CloudABI) may only provide local filesystem access (using *at()).
|
|
// Functions like open(), rename(), unlink() and stat() should not be
|
|
// used, as they attempt to access the global filesystem namespace.
|
|
#ifdef __CloudABI__
|
|
#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
|
|
#endif
|
|
|
|
// CloudABI is intended for running networked services. Processes do not
|
|
// have standard input and output channels.
|
|
#ifdef __CloudABI__
|
|
#define _LIBCPP_HAS_NO_STDIN
|
|
#define _LIBCPP_HAS_NO_STDOUT
|
|
#endif
|
|
|
|
// Some systems do not provide gets() in their C library, for security reasons.
|
|
#ifndef _LIBCPP_C_HAS_NO_GETS
|
|
# if defined(_LIBCPP_MSVCRT) || \
|
|
(defined(__FreeBSD_version) && __FreeBSD_version >= 1300043)
|
|
# define _LIBCPP_C_HAS_NO_GETS
|
|
# endif
|
|
#endif
|
|
|
|
#if defined(__BIONIC__) || defined(__CloudABI__) || \
|
|
defined(__Fuchsia__) || defined(__wasi__) || defined(_LIBCPP_HAS_MUSL_LIBC)
|
|
#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
|
|
#endif
|
|
|
|
// Thread-unsafe functions such as strtok() and localtime()
|
|
// are not available.
|
|
#ifdef __CloudABI__
|
|
#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
|
|
#endif
|
|
|
|
#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic)
|
|
# define _LIBCPP_HAS_C_ATOMIC_IMP
|
|
#elif defined(_LIBCPP_COMPILER_GCC)
|
|
# define _LIBCPP_HAS_GCC_ATOMIC_IMP
|
|
#endif
|
|
|
|
#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && \
|
|
!defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) && \
|
|
!defined(_LIBCPP_HAS_EXTERNAL_ATOMIC_IMP)) \
|
|
|| defined(_LIBCPP_HAS_NO_THREADS)
|
|
# define _LIBCPP_HAS_NO_ATOMIC_HEADER
|
|
#else
|
|
# ifndef _LIBCPP_ATOMIC_FLAG_TYPE
|
|
# define _LIBCPP_ATOMIC_FLAG_TYPE bool
|
|
# endif
|
|
# ifdef _LIBCPP_FREESTANDING
|
|
# define _LIBCPP_ATOMIC_ONLY_USE_BUILTINS
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
|
|
#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS)
|
|
# if defined(__clang__) && __has_attribute(acquire_capability)
|
|
// Work around the attribute handling in clang. When both __declspec and
|
|
// __attribute__ are present, the processing goes awry preventing the definition
|
|
// of the types.
|
|
# if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
|
|
# define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_THREAD_SAFETY_ANNOTATION
|
|
# ifdef _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
|
|
# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) __attribute__((x))
|
|
# else
|
|
# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x)
|
|
# endif
|
|
#endif // _LIBCPP_THREAD_SAFETY_ANNOTATION
|
|
|
|
#if __has_attribute(require_constant_initialization)
|
|
# define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__))
|
|
#else
|
|
# define _LIBCPP_SAFE_STATIC
|
|
#endif
|
|
|
|
#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700
|
|
#define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
|
|
#endif
|
|
|
|
#if !__has_builtin(__builtin_is_constant_evaluated) && _GNUC_VER < 900
|
|
#define _LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS)
|
|
# if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION)
|
|
# define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS
|
|
# endif
|
|
#endif
|
|
|
|
#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS)
|
|
# define _LIBCPP_DIAGNOSE_WARNING(...) \
|
|
__attribute__((diagnose_if(__VA_ARGS__, "warning")))
|
|
# define _LIBCPP_DIAGNOSE_ERROR(...) \
|
|
__attribute__((diagnose_if(__VA_ARGS__, "error")))
|
|
#else
|
|
# define _LIBCPP_DIAGNOSE_WARNING(...)
|
|
# define _LIBCPP_DIAGNOSE_ERROR(...)
|
|
#endif
|
|
|
|
// Use a function like macro to imply that it must be followed by a semicolon
|
|
#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
|
|
# define _LIBCPP_FALLTHROUGH() [[fallthrough]]
|
|
#elif __has_cpp_attribute(clang::fallthrough)
|
|
# define _LIBCPP_FALLTHROUGH() [[clang::fallthrough]]
|
|
#elif __has_attribute(fallthrough) || _GNUC_VER >= 700
|
|
# define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__))
|
|
#else
|
|
# define _LIBCPP_FALLTHROUGH() ((void)0)
|
|
#endif
|
|
|
|
#if __has_attribute(__nodebug__)
|
|
#define _LIBCPP_NODEBUG __attribute__((__nodebug__))
|
|
#else
|
|
#define _LIBCPP_NODEBUG
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_NODEBUG_TYPE
|
|
#if __has_attribute(__nodebug__) && \
|
|
(defined(_LIBCPP_CLANG_VER) && _LIBCPP_CLANG_VER >= 900)
|
|
#define _LIBCPP_NODEBUG_TYPE __attribute__((nodebug))
|
|
#else
|
|
#define _LIBCPP_NODEBUG_TYPE
|
|
#endif
|
|
#endif // !defined(_LIBCPP_NODEBUG_TYPE)
|
|
|
|
#if defined(_LIBCPP_ABI_MICROSOFT) && \
|
|
(defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases))
|
|
# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
|
|
#else
|
|
# define _LIBCPP_DECLSPEC_EMPTY_BASES
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES)
|
|
#define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
|
|
#define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
|
|
#define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
|
|
#define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS
|
|
#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES
|
|
|
|
#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611
|
|
#define _LIBCPP_HAS_NO_DEDUCTION_GUIDES
|
|
#endif
|
|
|
|
#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001)
|
|
#define _LIBCPP_HAS_NO_IS_AGGREGATE
|
|
#endif
|
|
|
|
#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L
|
|
#define _LIBCPP_HAS_NO_COROUTINES
|
|
#endif
|
|
|
|
#if !defined(__cpp_impl_three_way_comparison) || __cpp_impl_three_way_comparison < 201907L
|
|
#define _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
|
#endif
|
|
|
|
// Decide whether to use availability macros.
|
|
#if !defined(_LIBCPP_BUILDING_LIBRARY) && \
|
|
!defined(_LIBCXXABI_BUILDING_LIBRARY) && \
|
|
!defined(_LIBCPP_DISABLE_AVAILABILITY) && \
|
|
__has_feature(attribute_availability_with_strict) && \
|
|
__has_feature(attribute_availability_in_templates) && \
|
|
__has_extension(pragma_clang_attribute_external_declaration)
|
|
# ifdef __APPLE__
|
|
# define _LIBCPP_USE_AVAILABILITY_APPLE
|
|
# endif
|
|
#endif
|
|
|
|
// Define availability macros.
|
|
#if defined(_LIBCPP_USE_AVAILABILITY_APPLE)
|
|
# define _LIBCPP_AVAILABILITY_SHARED_MUTEX \
|
|
__attribute__((availability(macosx,strict,introduced=10.12))) \
|
|
__attribute__((availability(ios,strict,introduced=10.0))) \
|
|
__attribute__((availability(tvos,strict,introduced=10.0))) \
|
|
__attribute__((availability(watchos,strict,introduced=3.0)))
|
|
# define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS \
|
|
__attribute__((availability(macosx,strict,introduced=10.13))) \
|
|
__attribute__((availability(ios,strict,introduced=11.0))) \
|
|
__attribute__((availability(tvos,strict,introduced=11.0))) \
|
|
__attribute__((availability(watchos,strict,introduced=4.0)))
|
|
# define _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS \
|
|
_LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
|
|
# define _LIBCPP_AVAILABILITY_BAD_ANY_CAST \
|
|
_LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
|
|
# define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \
|
|
__attribute__((availability(macosx,strict,introduced=10.12))) \
|
|
__attribute__((availability(ios,strict,introduced=10.0))) \
|
|
__attribute__((availability(tvos,strict,introduced=10.0))) \
|
|
__attribute__((availability(watchos,strict,introduced=3.0)))
|
|
# define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \
|
|
__attribute__((availability(macosx,strict,introduced=10.12))) \
|
|
__attribute__((availability(ios,strict,introduced=10.0))) \
|
|
__attribute__((availability(tvos,strict,introduced=10.0))) \
|
|
__attribute__((availability(watchos,strict,introduced=3.0)))
|
|
# define _LIBCPP_AVAILABILITY_FUTURE_ERROR \
|
|
__attribute__((availability(ios,strict,introduced=6.0)))
|
|
# define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \
|
|
__attribute__((availability(macosx,strict,introduced=10.9))) \
|
|
__attribute__((availability(ios,strict,introduced=7.0)))
|
|
# define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \
|
|
__attribute__((availability(macosx,strict,introduced=10.9))) \
|
|
__attribute__((availability(ios,strict,introduced=7.0)))
|
|
# define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \
|
|
__attribute__((availability(macosx,strict,introduced=10.9))) \
|
|
__attribute__((availability(ios,strict,introduced=7.0)))
|
|
# define _LIBCPP_AVAILABILITY_FILESYSTEM \
|
|
__attribute__((availability(macosx,strict,introduced=10.15))) \
|
|
__attribute__((availability(ios,strict,introduced=13.0))) \
|
|
__attribute__((availability(tvos,strict,introduced=13.0))) \
|
|
__attribute__((availability(watchos,strict,introduced=6.0)))
|
|
# define _LIBCPP_AVAILABILITY_FILESYSTEM_PUSH \
|
|
_Pragma("clang attribute push(__attribute__((availability(macosx,strict,introduced=10.15))), apply_to=any(function,record))") \
|
|
_Pragma("clang attribute push(__attribute__((availability(ios,strict,introduced=13.0))), apply_to=any(function,record))") \
|
|
_Pragma("clang attribute push(__attribute__((availability(tvos,strict,introduced=13.0))), apply_to=any(function,record))") \
|
|
_Pragma("clang attribute push(__attribute__((availability(watchos,strict,introduced=6.0))), apply_to=any(function,record))")
|
|
# define _LIBCPP_AVAILABILITY_FILESYSTEM_POP \
|
|
_Pragma("clang attribute pop") \
|
|
_Pragma("clang attribute pop") \
|
|
_Pragma("clang attribute pop") \
|
|
_Pragma("clang attribute pop")
|
|
# define _LIBCPP_AVAILABILITY_TO_CHARS \
|
|
_LIBCPP_AVAILABILITY_FILESYSTEM
|
|
# define _LIBCPP_AVAILABILITY_SYNC \
|
|
__attribute__((unavailable))
|
|
#else
|
|
# define _LIBCPP_AVAILABILITY_SHARED_MUTEX
|
|
# define _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS
|
|
# define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
|
|
# define _LIBCPP_AVAILABILITY_BAD_ANY_CAST
|
|
# define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS
|
|
# define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE
|
|
# define _LIBCPP_AVAILABILITY_FUTURE_ERROR
|
|
# define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE
|
|
# define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY
|
|
# define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR
|
|
# define _LIBCPP_AVAILABILITY_FILESYSTEM
|
|
# define _LIBCPP_AVAILABILITY_FILESYSTEM_PUSH
|
|
# define _LIBCPP_AVAILABILITY_FILESYSTEM_POP
|
|
# define _LIBCPP_AVAILABILITY_TO_CHARS
|
|
# define _LIBCPP_AVAILABILITY_SYNC
|
|
#endif
|
|
|
|
// Define availability that depends on _LIBCPP_NO_EXCEPTIONS.
|
|
#ifdef _LIBCPP_NO_EXCEPTIONS
|
|
# define _LIBCPP_AVAILABILITY_FUTURE
|
|
# define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST
|
|
# define _LIBCPP_AVAILABILITY_THROW_BAD_OPTIONAL_ACCESS
|
|
# define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS
|
|
#else
|
|
# define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR
|
|
# define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST _LIBCPP_AVAILABILITY_BAD_ANY_CAST
|
|
# define _LIBCPP_AVAILABILITY_THROW_BAD_OPTIONAL_ACCESS _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
|
|
# define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS
|
|
#endif
|
|
|
|
// The stream API was dropped and re-added in the dylib shipped on macOS
|
|
// and iOS. We can only assume the dylib to provide these definitions for
|
|
// macosx >= 10.9 and ios >= 7.0. Otherwise, the definitions are available
|
|
// from the headers, but not from the dylib. Explicit instantiation
|
|
// declarations for streams exist conditionally to this; if we provide
|
|
// an explicit instantiation declaration and we try to deploy to a dylib
|
|
// that does not provide those symbols, we'll get a load-time error.
|
|
#if !defined(_LIBCPP_BUILDING_LIBRARY) && \
|
|
((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
|
|
__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \
|
|
(defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \
|
|
__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000))
|
|
# define _LIBCPP_DO_NOT_ASSUME_STREAMS_EXPLICIT_INSTANTIATION_IN_DYLIB
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_COMPILER_IBM)
|
|
#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
|
|
# define _LIBCPP_PUSH_MACROS
|
|
# define _LIBCPP_POP_MACROS
|
|
#else
|
|
// Don't warn about macro conflicts when we can restore them at the
|
|
// end of the header.
|
|
# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
|
|
# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
|
|
# endif
|
|
# if defined(_LIBCPP_COMPILER_MSVC)
|
|
# define _LIBCPP_PUSH_MACROS \
|
|
__pragma(push_macro("min")) \
|
|
__pragma(push_macro("max"))
|
|
# define _LIBCPP_POP_MACROS \
|
|
__pragma(pop_macro("min")) \
|
|
__pragma(pop_macro("max"))
|
|
# else
|
|
# define _LIBCPP_PUSH_MACROS \
|
|
_Pragma("push_macro(\"min\")") \
|
|
_Pragma("push_macro(\"max\")")
|
|
# define _LIBCPP_POP_MACROS \
|
|
_Pragma("pop_macro(\"min\")") \
|
|
_Pragma("pop_macro(\"max\")")
|
|
# endif
|
|
#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
|
|
|
|
#ifndef _LIBCPP_NO_AUTO_LINK
|
|
# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY)
|
|
# if defined(_DLL)
|
|
# pragma comment(lib, "c++.lib")
|
|
# else
|
|
# pragma comment(lib, "libc++.lib")
|
|
# endif
|
|
# endif // defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY)
|
|
#endif // _LIBCPP_NO_AUTO_LINK
|
|
|
|
#define _LIBCPP_UNUSED_VAR(x) ((void)(x))
|
|
|
|
// Configures the fopen close-on-exec mode character, if any. This string will
|
|
// be appended to any mode string used by fstream for fopen/fdopen.
|
|
//
|
|
// Not all platforms support this, but it helps avoid fd-leaks on platforms that
|
|
// do.
|
|
#if defined(__BIONIC__)
|
|
# define _LIBCPP_FOPEN_CLOEXEC_MODE "e"
|
|
#else
|
|
# define _LIBCPP_FOPEN_CLOEXEC_MODE
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_COMPILER_HAS_BUILTIN_CONSTANT_P
|
|
#define _LIBCPP_BUILTIN_CONSTANT_P(x) __builtin_constant_p(x)
|
|
#else
|
|
#define _LIBCPP_BUILTIN_CONSTANT_P(x) false
|
|
#endif
|
|
|
|
// Support for _FILE_OFFSET_BITS=64 landed gradually in Android, so the full set
|
|
// of functions used in cstdio may not be available for low API levels when
|
|
// using 64-bit file offsets on LP32.
|
|
#if defined(__BIONIC__) && defined(__USE_FILE_OFFSET64) && __ANDROID_API__ < 24
|
|
#define _LIBCPP_HAS_NO_FGETPOS_FSETPOS
|
|
#endif
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif // _LIBCPP_CONFIG
|