0ba6a850b5
In a freestanding library we don't install the <pstl/pstl_config.h> header, so don't try to include it unless it exists. Explicitly declare aligned alloc functions for freestanding, because <cstdlib> doesn't declare them. PR libstdc++/92376 * include/bits/c++config: Only do PSTL config when the header is present, to fix freestanding. * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation functions if they were detected by configure.
693 lines
20 KiB
C++
693 lines
20 KiB
C++
// Predefined symbols and macros -*- C++ -*-
|
|
|
|
// Copyright (C) 1997-2020 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 3, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// Under Section 7 of GPL version 3, you are granted additional
|
|
// permissions described in the GCC Runtime Library Exception, version
|
|
// 3.1, as published by the Free Software Foundation.
|
|
|
|
// You should have received a copy of the GNU General Public License and
|
|
// a copy of the GCC Runtime Library Exception along with this program;
|
|
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
/** @file bits/c++config.h
|
|
* This is an internal header file, included by other library headers.
|
|
* Do not attempt to use it directly. @headername{version}
|
|
*/
|
|
|
|
#ifndef _GLIBCXX_CXX_CONFIG_H
|
|
#define _GLIBCXX_CXX_CONFIG_H 1
|
|
|
|
// The major release number for the GCC release the C++ library belongs to.
|
|
#define _GLIBCXX_RELEASE
|
|
|
|
// The datestamp of the C++ library in compressed ISO date format.
|
|
#define __GLIBCXX__
|
|
|
|
// Macros for various attributes.
|
|
// _GLIBCXX_PURE
|
|
// _GLIBCXX_CONST
|
|
// _GLIBCXX_NORETURN
|
|
// _GLIBCXX_NOTHROW
|
|
// _GLIBCXX_VISIBILITY
|
|
#ifndef _GLIBCXX_PURE
|
|
# define _GLIBCXX_PURE __attribute__ ((__pure__))
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX_CONST
|
|
# define _GLIBCXX_CONST __attribute__ ((__const__))
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX_NORETURN
|
|
# define _GLIBCXX_NORETURN __attribute__ ((__noreturn__))
|
|
#endif
|
|
|
|
// See below for C++
|
|
#ifndef _GLIBCXX_NOTHROW
|
|
# ifndef __cplusplus
|
|
# define _GLIBCXX_NOTHROW __attribute__((__nothrow__))
|
|
# endif
|
|
#endif
|
|
|
|
// Macros for visibility attributes.
|
|
// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
|
|
// _GLIBCXX_VISIBILITY
|
|
#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
|
|
|
|
#if _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
|
|
# define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V)))
|
|
#else
|
|
// If this is not supplied by the OS-specific or CPU-specific
|
|
// headers included below, it will be defined to an empty default.
|
|
# define _GLIBCXX_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY(V)
|
|
#endif
|
|
|
|
// Macros for deprecated attributes.
|
|
// _GLIBCXX_USE_DEPRECATED
|
|
// _GLIBCXX_DEPRECATED
|
|
// _GLIBCXX17_DEPRECATED
|
|
// _GLIBCXX20_DEPRECATED( string-literal )
|
|
#ifndef _GLIBCXX_USE_DEPRECATED
|
|
# define _GLIBCXX_USE_DEPRECATED 1
|
|
#endif
|
|
|
|
#if defined(__DEPRECATED) && (__cplusplus >= 201103L)
|
|
# define _GLIBCXX_DEPRECATED __attribute__ ((__deprecated__))
|
|
#else
|
|
# define _GLIBCXX_DEPRECATED
|
|
#endif
|
|
|
|
#if defined(__DEPRECATED) && (__cplusplus >= 201703L)
|
|
# define _GLIBCXX17_DEPRECATED [[__deprecated__]]
|
|
#else
|
|
# define _GLIBCXX17_DEPRECATED
|
|
#endif
|
|
|
|
#if defined(__DEPRECATED) && (__cplusplus > 201703L)
|
|
# define _GLIBCXX20_DEPRECATED(MSG) [[deprecated(MSG)]]
|
|
#else
|
|
# define _GLIBCXX20_DEPRECATED(MSG)
|
|
#endif
|
|
|
|
// Macros for ABI tag attributes.
|
|
#ifndef _GLIBCXX_ABI_TAG_CXX11
|
|
# define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11")))
|
|
#endif
|
|
|
|
// Macro to warn about unused results.
|
|
#if __cplusplus >= 201703L
|
|
# define _GLIBCXX_NODISCARD [[__nodiscard__]]
|
|
#else
|
|
# define _GLIBCXX_NODISCARD
|
|
#endif
|
|
|
|
|
|
|
|
#if __cplusplus
|
|
|
|
// Macro for constexpr, to support in mixed 03/0x mode.
|
|
#ifndef _GLIBCXX_CONSTEXPR
|
|
# if __cplusplus >= 201103L
|
|
# define _GLIBCXX_CONSTEXPR constexpr
|
|
# define _GLIBCXX_USE_CONSTEXPR constexpr
|
|
# else
|
|
# define _GLIBCXX_CONSTEXPR
|
|
# define _GLIBCXX_USE_CONSTEXPR const
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX14_CONSTEXPR
|
|
# if __cplusplus >= 201402L
|
|
# define _GLIBCXX14_CONSTEXPR constexpr
|
|
# else
|
|
# define _GLIBCXX14_CONSTEXPR
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX17_CONSTEXPR
|
|
# if __cplusplus >= 201703L
|
|
# define _GLIBCXX17_CONSTEXPR constexpr
|
|
# else
|
|
# define _GLIBCXX17_CONSTEXPR
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX20_CONSTEXPR
|
|
# if __cplusplus > 201703L
|
|
# define _GLIBCXX20_CONSTEXPR constexpr
|
|
# else
|
|
# define _GLIBCXX20_CONSTEXPR
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX17_INLINE
|
|
# if __cplusplus >= 201703L
|
|
# define _GLIBCXX17_INLINE inline
|
|
# else
|
|
# define _GLIBCXX17_INLINE
|
|
# endif
|
|
#endif
|
|
|
|
// Macro for noexcept, to support in mixed 03/0x mode.
|
|
#ifndef _GLIBCXX_NOEXCEPT
|
|
# if __cplusplus >= 201103L
|
|
# define _GLIBCXX_NOEXCEPT noexcept
|
|
# define _GLIBCXX_NOEXCEPT_IF(...) noexcept(__VA_ARGS__)
|
|
# define _GLIBCXX_USE_NOEXCEPT noexcept
|
|
# define _GLIBCXX_THROW(_EXC)
|
|
# else
|
|
# define _GLIBCXX_NOEXCEPT
|
|
# define _GLIBCXX_NOEXCEPT_IF(...)
|
|
# define _GLIBCXX_USE_NOEXCEPT throw()
|
|
# define _GLIBCXX_THROW(_EXC) throw(_EXC)
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX_NOTHROW
|
|
# define _GLIBCXX_NOTHROW _GLIBCXX_USE_NOEXCEPT
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX_THROW_OR_ABORT
|
|
# if __cpp_exceptions
|
|
# define _GLIBCXX_THROW_OR_ABORT(_EXC) (throw (_EXC))
|
|
# else
|
|
# define _GLIBCXX_THROW_OR_ABORT(_EXC) (__builtin_abort())
|
|
# endif
|
|
#endif
|
|
|
|
#if __cpp_noexcept_function_type
|
|
#define _GLIBCXX_NOEXCEPT_PARM , bool _NE
|
|
#define _GLIBCXX_NOEXCEPT_QUAL noexcept (_NE)
|
|
#else
|
|
#define _GLIBCXX_NOEXCEPT_PARM
|
|
#define _GLIBCXX_NOEXCEPT_QUAL
|
|
#endif
|
|
|
|
// Macro for extern template, ie controlling template linkage via use
|
|
// of extern keyword on template declaration. As documented in the g++
|
|
// manual, it inhibits all implicit instantiations and is used
|
|
// throughout the library to avoid multiple weak definitions for
|
|
// required types that are already explicitly instantiated in the
|
|
// library binary. This substantially reduces the binary size of
|
|
// resulting executables.
|
|
// Special case: _GLIBCXX_EXTERN_TEMPLATE == -1 disallows extern
|
|
// templates only in basic_string, thus activating its debug-mode
|
|
// checks even at -O0.
|
|
#define _GLIBCXX_EXTERN_TEMPLATE
|
|
|
|
/*
|
|
Outline of libstdc++ namespaces.
|
|
|
|
namespace std
|
|
{
|
|
namespace __debug { }
|
|
namespace __parallel { }
|
|
namespace __cxx1998 { }
|
|
|
|
namespace __detail {
|
|
namespace __variant { } // C++17
|
|
}
|
|
|
|
namespace rel_ops { }
|
|
|
|
namespace tr1
|
|
{
|
|
namespace placeholders { }
|
|
namespace regex_constants { }
|
|
namespace __detail { }
|
|
}
|
|
|
|
namespace tr2 { }
|
|
|
|
namespace decimal { }
|
|
|
|
namespace chrono { } // C++11
|
|
namespace placeholders { } // C++11
|
|
namespace regex_constants { } // C++11
|
|
namespace this_thread { } // C++11
|
|
inline namespace literals { // C++14
|
|
inline namespace chrono_literals { } // C++14
|
|
inline namespace complex_literals { } // C++14
|
|
inline namespace string_literals { } // C++14
|
|
inline namespace string_view_literals { } // C++17
|
|
}
|
|
}
|
|
|
|
namespace abi { }
|
|
|
|
namespace __gnu_cxx
|
|
{
|
|
namespace __detail { }
|
|
}
|
|
|
|
For full details see:
|
|
http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html
|
|
*/
|
|
namespace std
|
|
{
|
|
typedef __SIZE_TYPE__ size_t;
|
|
typedef __PTRDIFF_TYPE__ ptrdiff_t;
|
|
|
|
#if __cplusplus >= 201103L
|
|
typedef decltype(nullptr) nullptr_t;
|
|
#endif
|
|
}
|
|
|
|
#define _GLIBCXX_USE_DUAL_ABI
|
|
|
|
#if ! _GLIBCXX_USE_DUAL_ABI
|
|
// Ignore any pre-defined value of _GLIBCXX_USE_CXX11_ABI
|
|
# undef _GLIBCXX_USE_CXX11_ABI
|
|
#endif
|
|
|
|
#ifndef _GLIBCXX_USE_CXX11_ABI
|
|
#define _GLIBCXX_USE_CXX11_ABI
|
|
#endif
|
|
|
|
#if _GLIBCXX_USE_CXX11_ABI
|
|
namespace std
|
|
{
|
|
inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
|
|
}
|
|
namespace __gnu_cxx
|
|
{
|
|
inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
|
|
}
|
|
# define _GLIBCXX_NAMESPACE_CXX11 __cxx11::
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_CXX11 namespace __cxx11 {
|
|
# define _GLIBCXX_END_NAMESPACE_CXX11 }
|
|
# define _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_ABI_TAG_CXX11
|
|
#else
|
|
# define _GLIBCXX_NAMESPACE_CXX11
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_CXX11
|
|
# define _GLIBCXX_END_NAMESPACE_CXX11
|
|
# define _GLIBCXX_DEFAULT_ABI_TAG
|
|
#endif
|
|
|
|
// Defined if inline namespaces are used for versioning.
|
|
#define _GLIBCXX_INLINE_VERSION
|
|
|
|
// Inline namespace for symbol versioning.
|
|
#if _GLIBCXX_INLINE_VERSION
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace __8 {
|
|
# define _GLIBCXX_END_NAMESPACE_VERSION }
|
|
|
|
namespace std
|
|
{
|
|
inline _GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
#if __cplusplus >= 201402L
|
|
inline namespace literals {
|
|
inline namespace chrono_literals { }
|
|
inline namespace complex_literals { }
|
|
inline namespace string_literals { }
|
|
#if __cplusplus > 201402L
|
|
inline namespace string_view_literals { }
|
|
#endif // C++17
|
|
}
|
|
#endif // C++14
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
}
|
|
|
|
namespace __gnu_cxx
|
|
{
|
|
inline _GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
}
|
|
|
|
#else
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
# define _GLIBCXX_END_NAMESPACE_VERSION
|
|
#endif
|
|
|
|
// Inline namespaces for special modes: debug, parallel.
|
|
#if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PARALLEL)
|
|
namespace std
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
// Non-inline namespace for components replaced by alternates in active mode.
|
|
namespace __cxx1998
|
|
{
|
|
# if _GLIBCXX_USE_CXX11_ABI
|
|
inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
|
|
# endif
|
|
}
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
|
|
// Inline namespace for debug mode.
|
|
# ifdef _GLIBCXX_DEBUG
|
|
inline namespace __debug { }
|
|
# endif
|
|
|
|
// Inline namespaces for parallel mode.
|
|
# ifdef _GLIBCXX_PARALLEL
|
|
inline namespace __parallel { }
|
|
# endif
|
|
}
|
|
|
|
// Check for invalid usage and unsupported mixed-mode use.
|
|
# if defined(_GLIBCXX_DEBUG) && defined(_GLIBCXX_PARALLEL)
|
|
# error illegal use of multiple inlined namespaces
|
|
# endif
|
|
|
|
// Check for invalid use due to lack for weak symbols.
|
|
# if __NO_INLINE__ && !__GXX_WEAK__
|
|
# warning currently using inlined namespace mode which may fail \
|
|
without inlining due to lack of weak symbols
|
|
# endif
|
|
#endif
|
|
|
|
// Macros for namespace scope. Either namespace std:: or the name
|
|
// of some nested namespace within it corresponding to the active mode.
|
|
// _GLIBCXX_STD_A
|
|
// _GLIBCXX_STD_C
|
|
//
|
|
// Macros for opening/closing conditional namespaces.
|
|
// _GLIBCXX_BEGIN_NAMESPACE_ALGO
|
|
// _GLIBCXX_END_NAMESPACE_ALGO
|
|
// _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
|
|
// _GLIBCXX_END_NAMESPACE_CONTAINER
|
|
#if defined(_GLIBCXX_DEBUG)
|
|
# define _GLIBCXX_STD_C __cxx1998
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER \
|
|
namespace _GLIBCXX_STD_C {
|
|
# define _GLIBCXX_END_NAMESPACE_CONTAINER }
|
|
#else
|
|
# define _GLIBCXX_STD_C std
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
|
|
# define _GLIBCXX_END_NAMESPACE_CONTAINER
|
|
#endif
|
|
|
|
#ifdef _GLIBCXX_PARALLEL
|
|
# define _GLIBCXX_STD_A __cxx1998
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_ALGO \
|
|
namespace _GLIBCXX_STD_A {
|
|
# define _GLIBCXX_END_NAMESPACE_ALGO }
|
|
#else
|
|
# define _GLIBCXX_STD_A std
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_ALGO
|
|
# define _GLIBCXX_END_NAMESPACE_ALGO
|
|
#endif
|
|
|
|
// GLIBCXX_ABI Deprecated
|
|
// Define if compatibility should be provided for -mlong-double-64.
|
|
#undef _GLIBCXX_LONG_DOUBLE_COMPAT
|
|
|
|
// Inline namespace for long double 128 mode.
|
|
#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
|
|
namespace std
|
|
{
|
|
inline namespace __gnu_cxx_ldbl128 { }
|
|
}
|
|
# define _GLIBCXX_NAMESPACE_LDBL __gnu_cxx_ldbl128::
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_LDBL namespace __gnu_cxx_ldbl128 {
|
|
# define _GLIBCXX_END_NAMESPACE_LDBL }
|
|
#else
|
|
# define _GLIBCXX_NAMESPACE_LDBL
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_LDBL
|
|
# define _GLIBCXX_END_NAMESPACE_LDBL
|
|
#endif
|
|
#if _GLIBCXX_USE_CXX11_ABI
|
|
# define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_CXX11
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_CXX11
|
|
# define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_CXX11
|
|
#else
|
|
# define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_LDBL
|
|
# define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_LDBL
|
|
# define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_LDBL
|
|
#endif
|
|
|
|
// Debug Mode implies checking assertions.
|
|
#if defined(_GLIBCXX_DEBUG) && !defined(_GLIBCXX_ASSERTIONS)
|
|
# define _GLIBCXX_ASSERTIONS 1
|
|
#endif
|
|
|
|
// Disable std::string explicit instantiation declarations in order to assert.
|
|
#ifdef _GLIBCXX_ASSERTIONS
|
|
# undef _GLIBCXX_EXTERN_TEMPLATE
|
|
# define _GLIBCXX_EXTERN_TEMPLATE -1
|
|
#endif
|
|
|
|
// Assert.
|
|
#if defined(_GLIBCXX_ASSERTIONS) \
|
|
|| defined(_GLIBCXX_PARALLEL) || defined(_GLIBCXX_PARALLEL_ASSERTIONS)
|
|
namespace std
|
|
{
|
|
// Avoid the use of assert, because we're trying to keep the <cassert>
|
|
// include out of the mix.
|
|
extern "C++" inline void
|
|
__replacement_assert(const char* __file, int __line,
|
|
const char* __function, const char* __condition)
|
|
{
|
|
__builtin_printf("%s:%d: %s: Assertion '%s' failed.\n", __file, __line,
|
|
__function, __condition);
|
|
__builtin_abort();
|
|
}
|
|
}
|
|
#define __glibcxx_assert_impl(_Condition) \
|
|
do \
|
|
{ \
|
|
if (! (_Condition)) \
|
|
std::__replacement_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \
|
|
#_Condition); \
|
|
} while (false)
|
|
#endif
|
|
|
|
#if defined(_GLIBCXX_ASSERTIONS)
|
|
# define __glibcxx_assert(_Condition) __glibcxx_assert_impl(_Condition)
|
|
#else
|
|
# define __glibcxx_assert(_Condition)
|
|
#endif
|
|
|
|
// Macros for race detectors.
|
|
// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) and
|
|
// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) should be used to explain
|
|
// atomic (lock-free) synchronization to race detectors:
|
|
// the race detector will infer a happens-before arc from the former to the
|
|
// latter when they share the same argument pointer.
|
|
//
|
|
// The most frequent use case for these macros (and the only case in the
|
|
// current implementation of the library) is atomic reference counting:
|
|
// void _M_remove_reference()
|
|
// {
|
|
// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount);
|
|
// if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, -1) <= 0)
|
|
// {
|
|
// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount);
|
|
// _M_destroy(__a);
|
|
// }
|
|
// }
|
|
// The annotations in this example tell the race detector that all memory
|
|
// accesses occurred when the refcount was positive do not race with
|
|
// memory accesses which occurred after the refcount became zero.
|
|
#ifndef _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE
|
|
# define _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A)
|
|
#endif
|
|
#ifndef _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER
|
|
# define _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A)
|
|
#endif
|
|
|
|
// Macros for C linkage: define extern "C" linkage only when using C++.
|
|
# define _GLIBCXX_BEGIN_EXTERN_C extern "C" {
|
|
# define _GLIBCXX_END_EXTERN_C }
|
|
|
|
#define _GLIBCXX_USE_ALLOCATOR_NEW
|
|
|
|
#else // !__cplusplus
|
|
# define _GLIBCXX_BEGIN_EXTERN_C
|
|
# define _GLIBCXX_END_EXTERN_C
|
|
#endif
|
|
|
|
|
|
// First includes.
|
|
|
|
// Pick up any OS-specific definitions.
|
|
#include <bits/os_defines.h>
|
|
|
|
// Pick up any CPU-specific definitions.
|
|
#include <bits/cpu_defines.h>
|
|
|
|
// If platform uses neither visibility nor psuedo-visibility,
|
|
// specify empty default for namespace annotation macros.
|
|
#ifndef _GLIBCXX_PSEUDO_VISIBILITY
|
|
# define _GLIBCXX_PSEUDO_VISIBILITY(V)
|
|
#endif
|
|
|
|
// Certain function definitions that are meant to be overridable from
|
|
// user code are decorated with this macro. For some targets, this
|
|
// macro causes these definitions to be weak.
|
|
#ifndef _GLIBCXX_WEAK_DEFINITION
|
|
# define _GLIBCXX_WEAK_DEFINITION
|
|
#endif
|
|
|
|
// By default, we assume that __GXX_WEAK__ also means that there is support
|
|
// for declaring functions as weak while not defining such functions. This
|
|
// allows for referring to functions provided by other libraries (e.g.,
|
|
// libitm) without depending on them if the respective features are not used.
|
|
#ifndef _GLIBCXX_USE_WEAK_REF
|
|
# define _GLIBCXX_USE_WEAK_REF __GXX_WEAK__
|
|
#endif
|
|
|
|
// Conditionally enable annotations for the Transactional Memory TS on C++11.
|
|
// Most of the following conditions are due to limitations in the current
|
|
// implementation.
|
|
#if __cplusplus >= 201103L && _GLIBCXX_USE_CXX11_ABI \
|
|
&& _GLIBCXX_USE_DUAL_ABI && __cpp_transactional_memory >= 201500L \
|
|
&& !_GLIBCXX_FULLY_DYNAMIC_STRING && _GLIBCXX_USE_WEAK_REF \
|
|
&& _GLIBCXX_USE_ALLOCATOR_NEW
|
|
#define _GLIBCXX_TXN_SAFE transaction_safe
|
|
#define _GLIBCXX_TXN_SAFE_DYN transaction_safe_dynamic
|
|
#else
|
|
#define _GLIBCXX_TXN_SAFE
|
|
#define _GLIBCXX_TXN_SAFE_DYN
|
|
#endif
|
|
|
|
#if __cplusplus > 201402L
|
|
// In C++17 mathematical special functions are in namespace std.
|
|
# define _GLIBCXX_USE_STD_SPEC_FUNCS 1
|
|
#elif __cplusplus >= 201103L && __STDCPP_WANT_MATH_SPEC_FUNCS__ != 0
|
|
// For C++11 and C++14 they are in namespace std when requested.
|
|
# define _GLIBCXX_USE_STD_SPEC_FUNCS 1
|
|
#endif
|
|
|
|
// The remainder of the prewritten config is automatic; all the
|
|
// user hooks are listed above.
|
|
|
|
// Create a boolean flag to be used to determine if --fast-math is set.
|
|
#ifdef __FAST_MATH__
|
|
# define _GLIBCXX_FAST_MATH 1
|
|
#else
|
|
# define _GLIBCXX_FAST_MATH 0
|
|
#endif
|
|
|
|
// This marks string literals in header files to be extracted for eventual
|
|
// translation. It is primarily used for messages in thrown exceptions; see
|
|
// src/functexcept.cc. We use __N because the more traditional _N is used
|
|
// for something else under certain OSes (see BADNAMES).
|
|
#define __N(msgid) (msgid)
|
|
|
|
// For example, <windows.h> is known to #define min and max as macros...
|
|
#undef min
|
|
#undef max
|
|
|
|
// N.B. these _GLIBCXX_USE_C99_XXX macros are defined unconditionally
|
|
// so they should be tested with #if not with #ifdef.
|
|
#if __cplusplus >= 201103L
|
|
# ifndef _GLIBCXX_USE_C99_MATH
|
|
# define _GLIBCXX_USE_C99_MATH _GLIBCXX11_USE_C99_MATH
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_COMPLEX
|
|
# define _GLIBCXX_USE_C99_COMPLEX _GLIBCXX11_USE_C99_COMPLEX
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_STDIO
|
|
# define _GLIBCXX_USE_C99_STDIO _GLIBCXX11_USE_C99_STDIO
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_STDLIB
|
|
# define _GLIBCXX_USE_C99_STDLIB _GLIBCXX11_USE_C99_STDLIB
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_WCHAR
|
|
# define _GLIBCXX_USE_C99_WCHAR _GLIBCXX11_USE_C99_WCHAR
|
|
# endif
|
|
#else
|
|
# ifndef _GLIBCXX_USE_C99_MATH
|
|
# define _GLIBCXX_USE_C99_MATH _GLIBCXX98_USE_C99_MATH
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_COMPLEX
|
|
# define _GLIBCXX_USE_C99_COMPLEX _GLIBCXX98_USE_C99_COMPLEX
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_STDIO
|
|
# define _GLIBCXX_USE_C99_STDIO _GLIBCXX98_USE_C99_STDIO
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_STDLIB
|
|
# define _GLIBCXX_USE_C99_STDLIB _GLIBCXX98_USE_C99_STDLIB
|
|
# endif
|
|
# ifndef _GLIBCXX_USE_C99_WCHAR
|
|
# define _GLIBCXX_USE_C99_WCHAR _GLIBCXX98_USE_C99_WCHAR
|
|
# endif
|
|
#endif
|
|
|
|
// Unless explicitly specified, enable char8_t extensions only if the core
|
|
// language char8_t feature macro is defined.
|
|
#ifndef _GLIBCXX_USE_CHAR8_T
|
|
# ifdef __cpp_char8_t
|
|
# define _GLIBCXX_USE_CHAR8_T 1
|
|
# endif
|
|
#endif
|
|
#ifdef _GLIBCXX_USE_CHAR8_T
|
|
# define __cpp_lib_char8_t 201907L
|
|
#endif
|
|
|
|
/* Define if __float128 is supported on this host. */
|
|
#if defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__)
|
|
#define _GLIBCXX_USE_FLOAT128
|
|
#endif
|
|
|
|
#if __GNUC__ >= 7
|
|
// Assume these are available if the compiler claims to be a recent GCC:
|
|
# define _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP 1
|
|
# define _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE 1
|
|
# define _GLIBCXX_HAVE_BUILTIN_LAUNDER 1
|
|
# define _GLIBCXX_BUILTIN_IS_SAME_AS(T, U) __is_same_as(T, U)
|
|
# if __GNUC__ >= 9
|
|
# define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1
|
|
# endif
|
|
#elif defined(__is_identifier) && defined(__has_builtin)
|
|
// For non-GNU compilers:
|
|
# if ! __is_identifier(__has_unique_object_representations)
|
|
# define _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP 1
|
|
# endif
|
|
# if ! __is_identifier(__is_aggregate)
|
|
# define _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE 1
|
|
# endif
|
|
# if __has_builtin(__builtin_launder)
|
|
# define _GLIBCXX_HAVE_BUILTIN_LAUNDER 1
|
|
# endif
|
|
# if __has_builtin(__builtin_is_constant_evaluated)
|
|
# define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1
|
|
# endif
|
|
# if ! __is_identifier(__is_same)
|
|
# define _GLIBCXX_BUILTIN_IS_SAME_AS(T, U) __is_same(T, U)
|
|
# endif
|
|
#endif // GCC
|
|
|
|
// PSTL configuration
|
|
|
|
#if __cplusplus >= 201703L
|
|
// This header is not installed for freestanding:
|
|
#if __has_include(<pstl/pstl_config.h>)
|
|
// Preserved here so we have some idea which version of upstream we've pulled in
|
|
// #define PSTL_VERSION 9000
|
|
|
|
// For now this defaults to being based on the presence of Thread Building Blocks
|
|
# ifndef _GLIBCXX_USE_TBB_PAR_BACKEND
|
|
# define _GLIBCXX_USE_TBB_PAR_BACKEND __has_include(<tbb/tbb.h>)
|
|
# endif
|
|
// This section will need some rework when a new (default) backend type is added
|
|
# if _GLIBCXX_USE_TBB_PAR_BACKEND
|
|
# define _PSTL_PAR_BACKEND_TBB
|
|
# else
|
|
# define _PSTL_PAR_BACKEND_SERIAL
|
|
# endif
|
|
|
|
# define _PSTL_ASSERT(_Condition) __glibcxx_assert(_Condition)
|
|
# define _PSTL_ASSERT_MSG(_Condition, _Message) __glibcxx_assert(_Condition)
|
|
|
|
#include <pstl/pstl_config.h>
|
|
#endif // __has_include
|
|
#endif // C++17
|
|
|
|
// End of prewritten config; the settings discovered at configure time follow.
|