73ae6eb572
PR 92271 added __is_same as another spelling of __is_same_as. Since Clang also spells it __is_same, let's just use that consistently. It appears that Intel icc sets __GNUC__ to 10, but only supports __is_same_as. If we only use __is_same for __GNUC__ >= 11 then we won't break icc again (it looks like we broke previous versions of icc when we started using __is_same_as). libstdc++-v3/ChangeLog: * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_SAME): Define for GCC 11 or when !__is_identifier(__is_same). (_GLIBCXX_BUILTIN_IS_SAME_AS): Remove. * include/std/type_traits (is_same, is_same_v): Replace uses of _GLIBCXX_BUILTIN_IS_SAME_AS.
733 lines
22 KiB
C++
733 lines
22 KiB
C++
// Predefined symbols and macros -*- C++ -*-
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// Copyright (C) 1997-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file bits/c++config.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{version}
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*/
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#ifndef _GLIBCXX_CXX_CONFIG_H
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#define _GLIBCXX_CXX_CONFIG_H 1
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// The major release number for the GCC release the C++ library belongs to.
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#define _GLIBCXX_RELEASE
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// The datestamp of the C++ library in compressed ISO date format.
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#define __GLIBCXX__
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// Macros for various attributes.
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// _GLIBCXX_PURE
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// _GLIBCXX_CONST
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// _GLIBCXX_NORETURN
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// _GLIBCXX_NOTHROW
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// _GLIBCXX_VISIBILITY
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#ifndef _GLIBCXX_PURE
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# define _GLIBCXX_PURE __attribute__ ((__pure__))
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#endif
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#ifndef _GLIBCXX_CONST
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# define _GLIBCXX_CONST __attribute__ ((__const__))
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#endif
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#ifndef _GLIBCXX_NORETURN
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# define _GLIBCXX_NORETURN __attribute__ ((__noreturn__))
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#endif
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// See below for C++
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#ifndef _GLIBCXX_NOTHROW
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# ifndef __cplusplus
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# define _GLIBCXX_NOTHROW __attribute__((__nothrow__))
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# endif
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#endif
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// Macros for visibility attributes.
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// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
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// _GLIBCXX_VISIBILITY
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#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
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#if _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
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# define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V)))
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#else
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// If this is not supplied by the OS-specific or CPU-specific
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// headers included below, it will be defined to an empty default.
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# define _GLIBCXX_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY(V)
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#endif
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// Macros for deprecated attributes.
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// _GLIBCXX_USE_DEPRECATED
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// _GLIBCXX_DEPRECATED
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// _GLIBCXX_DEPRECATED_SUGGEST( string-literal )
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// _GLIBCXX11_DEPRECATED
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// _GLIBCXX11_DEPRECATED_SUGGEST( string-literal )
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// _GLIBCXX17_DEPRECATED
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// _GLIBCXX17_DEPRECATED_SUGGEST( string-literal )
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// _GLIBCXX20_DEPRECATED( string-literal )
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// _GLIBCXX20_DEPRECATED_SUGGEST( string-literal )
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#ifndef _GLIBCXX_USE_DEPRECATED
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# define _GLIBCXX_USE_DEPRECATED 1
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#endif
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#if defined(__DEPRECATED)
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# define _GLIBCXX_DEPRECATED __attribute__ ((__deprecated__))
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# define _GLIBCXX_DEPRECATED_SUGGEST(ALT) \
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__attribute__ ((__deprecated__ ("use '" ALT "' instead")))
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#else
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# define _GLIBCXX_DEPRECATED
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# define _GLIBCXX_DEPRECATED_SUGGEST(ALT)
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#endif
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#if defined(__DEPRECATED) && (__cplusplus >= 201103L)
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# define _GLIBCXX11_DEPRECATED _GLIBCXX_DEPRECATED
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# define _GLIBCXX11_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
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#else
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# define _GLIBCXX11_DEPRECATED
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# define _GLIBCXX11_DEPRECATED_SUGGEST(ALT)
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#endif
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#if defined(__DEPRECATED) && (__cplusplus >= 201703L)
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# define _GLIBCXX17_DEPRECATED [[__deprecated__]]
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# define _GLIBCXX17_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
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#else
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# define _GLIBCXX17_DEPRECATED
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# define _GLIBCXX17_DEPRECATED_SUGGEST(ALT)
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#endif
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#if defined(__DEPRECATED) && (__cplusplus > 201703L)
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# define _GLIBCXX20_DEPRECATED(MSG) [[deprecated(MSG)]]
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# define _GLIBCXX20_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
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#else
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# define _GLIBCXX20_DEPRECATED(MSG)
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# define _GLIBCXX20_DEPRECATED_SUGGEST(ALT)
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#endif
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// Macros for ABI tag attributes.
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#ifndef _GLIBCXX_ABI_TAG_CXX11
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# define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11")))
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#endif
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// Macro to warn about unused results.
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#if __cplusplus >= 201703L
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# define _GLIBCXX_NODISCARD [[__nodiscard__]]
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#else
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# define _GLIBCXX_NODISCARD
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#endif
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#if __cplusplus
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// Macro for constexpr, to support in mixed 03/0x mode.
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#ifndef _GLIBCXX_CONSTEXPR
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# if __cplusplus >= 201103L
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# define _GLIBCXX_CONSTEXPR constexpr
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# define _GLIBCXX_USE_CONSTEXPR constexpr
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# else
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# define _GLIBCXX_CONSTEXPR
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# define _GLIBCXX_USE_CONSTEXPR const
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# endif
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#endif
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#ifndef _GLIBCXX14_CONSTEXPR
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# if __cplusplus >= 201402L
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# define _GLIBCXX14_CONSTEXPR constexpr
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# else
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# define _GLIBCXX14_CONSTEXPR
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# endif
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#endif
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#ifndef _GLIBCXX17_CONSTEXPR
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# if __cplusplus >= 201703L
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# define _GLIBCXX17_CONSTEXPR constexpr
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# else
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# define _GLIBCXX17_CONSTEXPR
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# endif
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#endif
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#ifndef _GLIBCXX20_CONSTEXPR
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# if __cplusplus > 201703L
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# define _GLIBCXX20_CONSTEXPR constexpr
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# else
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# define _GLIBCXX20_CONSTEXPR
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# endif
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#endif
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#ifndef _GLIBCXX17_INLINE
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# if __cplusplus >= 201703L
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# define _GLIBCXX17_INLINE inline
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# else
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# define _GLIBCXX17_INLINE
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# endif
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#endif
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// Macro for noexcept, to support in mixed 03/0x mode.
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#ifndef _GLIBCXX_NOEXCEPT
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# if __cplusplus >= 201103L
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# define _GLIBCXX_NOEXCEPT noexcept
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# define _GLIBCXX_NOEXCEPT_IF(...) noexcept(__VA_ARGS__)
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# define _GLIBCXX_USE_NOEXCEPT noexcept
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# define _GLIBCXX_THROW(_EXC)
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# else
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# define _GLIBCXX_NOEXCEPT
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# define _GLIBCXX_NOEXCEPT_IF(...)
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# define _GLIBCXX_USE_NOEXCEPT throw()
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# define _GLIBCXX_THROW(_EXC) throw(_EXC)
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# endif
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#endif
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#ifndef _GLIBCXX_NOTHROW
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# define _GLIBCXX_NOTHROW _GLIBCXX_USE_NOEXCEPT
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#endif
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#ifndef _GLIBCXX_THROW_OR_ABORT
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# if __cpp_exceptions
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# define _GLIBCXX_THROW_OR_ABORT(_EXC) (throw (_EXC))
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# else
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# define _GLIBCXX_THROW_OR_ABORT(_EXC) (__builtin_abort())
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# endif
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#endif
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#if __cpp_noexcept_function_type
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#define _GLIBCXX_NOEXCEPT_PARM , bool _NE
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#define _GLIBCXX_NOEXCEPT_QUAL noexcept (_NE)
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#else
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#define _GLIBCXX_NOEXCEPT_PARM
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#define _GLIBCXX_NOEXCEPT_QUAL
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#endif
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// Macro for extern template, ie controlling template linkage via use
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// of extern keyword on template declaration. As documented in the g++
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// manual, it inhibits all implicit instantiations and is used
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// throughout the library to avoid multiple weak definitions for
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// required types that are already explicitly instantiated in the
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// library binary. This substantially reduces the binary size of
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// resulting executables.
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// Special case: _GLIBCXX_EXTERN_TEMPLATE == -1 disallows extern
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// templates only in basic_string, thus activating its debug-mode
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// checks even at -O0.
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#define _GLIBCXX_EXTERN_TEMPLATE
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/*
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Outline of libstdc++ namespaces.
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namespace std
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{
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namespace __debug { }
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namespace __parallel { }
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namespace __cxx1998 { }
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namespace __detail {
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namespace __variant { } // C++17
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}
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namespace rel_ops { }
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namespace tr1
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{
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namespace placeholders { }
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namespace regex_constants { }
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namespace __detail { }
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}
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namespace tr2 { }
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namespace decimal { }
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namespace chrono { } // C++11
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namespace placeholders { } // C++11
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namespace regex_constants { } // C++11
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namespace this_thread { } // C++11
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inline namespace literals { // C++14
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inline namespace chrono_literals { } // C++14
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inline namespace complex_literals { } // C++14
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inline namespace string_literals { } // C++14
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inline namespace string_view_literals { } // C++17
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}
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}
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namespace abi { }
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namespace __gnu_cxx
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{
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namespace __detail { }
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}
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For full details see:
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http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html
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*/
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namespace std
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{
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typedef __SIZE_TYPE__ size_t;
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typedef __PTRDIFF_TYPE__ ptrdiff_t;
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#if __cplusplus >= 201103L
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typedef decltype(nullptr) nullptr_t;
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#endif
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}
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#define _GLIBCXX_USE_DUAL_ABI
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#if ! _GLIBCXX_USE_DUAL_ABI
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// Ignore any pre-defined value of _GLIBCXX_USE_CXX11_ABI
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# undef _GLIBCXX_USE_CXX11_ABI
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#endif
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#ifndef _GLIBCXX_USE_CXX11_ABI
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#define _GLIBCXX_USE_CXX11_ABI
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#endif
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#if _GLIBCXX_USE_CXX11_ABI
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namespace std
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{
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inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
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}
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namespace __gnu_cxx
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{
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inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
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}
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# define _GLIBCXX_NAMESPACE_CXX11 __cxx11::
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# define _GLIBCXX_BEGIN_NAMESPACE_CXX11 namespace __cxx11 {
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# define _GLIBCXX_END_NAMESPACE_CXX11 }
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# define _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_ABI_TAG_CXX11
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#else
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# define _GLIBCXX_NAMESPACE_CXX11
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# define _GLIBCXX_BEGIN_NAMESPACE_CXX11
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# define _GLIBCXX_END_NAMESPACE_CXX11
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# define _GLIBCXX_DEFAULT_ABI_TAG
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#endif
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// Defined if inline namespaces are used for versioning.
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#define _GLIBCXX_INLINE_VERSION
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// Inline namespace for symbol versioning.
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#if _GLIBCXX_INLINE_VERSION
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# define _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace __8 {
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# define _GLIBCXX_END_NAMESPACE_VERSION }
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namespace std
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{
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inline _GLIBCXX_BEGIN_NAMESPACE_VERSION
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#if __cplusplus >= 201402L
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inline namespace literals {
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inline namespace chrono_literals { }
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inline namespace complex_literals { }
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inline namespace string_literals { }
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#if __cplusplus > 201402L
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inline namespace string_view_literals { }
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#endif // C++17
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}
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#endif // C++14
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_GLIBCXX_END_NAMESPACE_VERSION
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}
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namespace __gnu_cxx
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{
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inline _GLIBCXX_BEGIN_NAMESPACE_VERSION
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_GLIBCXX_END_NAMESPACE_VERSION
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}
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#else
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# define _GLIBCXX_BEGIN_NAMESPACE_VERSION
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# define _GLIBCXX_END_NAMESPACE_VERSION
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#endif
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// Inline namespaces for special modes: debug, parallel.
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#if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PARALLEL)
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namespace std
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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// Non-inline namespace for components replaced by alternates in active mode.
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namespace __cxx1998
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{
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# if _GLIBCXX_USE_CXX11_ABI
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inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
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# endif
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}
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_GLIBCXX_END_NAMESPACE_VERSION
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// Inline namespace for debug mode.
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# ifdef _GLIBCXX_DEBUG
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inline namespace __debug { }
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# endif
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// Inline namespaces for parallel mode.
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# ifdef _GLIBCXX_PARALLEL
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inline namespace __parallel { }
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# endif
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}
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// Check for invalid usage and unsupported mixed-mode use.
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# if defined(_GLIBCXX_DEBUG) && defined(_GLIBCXX_PARALLEL)
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# error illegal use of multiple inlined namespaces
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# endif
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// Check for invalid use due to lack for weak symbols.
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# if __NO_INLINE__ && !__GXX_WEAK__
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# warning currently using inlined namespace mode which may fail \
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without inlining due to lack of weak symbols
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# endif
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#endif
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// Macros for namespace scope. Either namespace std:: or the name
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// of some nested namespace within it corresponding to the active mode.
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// _GLIBCXX_STD_A
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// _GLIBCXX_STD_C
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//
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// Macros for opening/closing conditional namespaces.
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// _GLIBCXX_BEGIN_NAMESPACE_ALGO
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// _GLIBCXX_END_NAMESPACE_ALGO
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// _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
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// _GLIBCXX_END_NAMESPACE_CONTAINER
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#if defined(_GLIBCXX_DEBUG)
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# define _GLIBCXX_STD_C __cxx1998
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# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER \
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namespace _GLIBCXX_STD_C {
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# define _GLIBCXX_END_NAMESPACE_CONTAINER }
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#else
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# define _GLIBCXX_STD_C std
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# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
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# define _GLIBCXX_END_NAMESPACE_CONTAINER
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#endif
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#ifdef _GLIBCXX_PARALLEL
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# define _GLIBCXX_STD_A __cxx1998
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# define _GLIBCXX_BEGIN_NAMESPACE_ALGO \
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namespace _GLIBCXX_STD_A {
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# define _GLIBCXX_END_NAMESPACE_ALGO }
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#else
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# define _GLIBCXX_STD_A std
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# define _GLIBCXX_BEGIN_NAMESPACE_ALGO
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# define _GLIBCXX_END_NAMESPACE_ALGO
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#endif
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// GLIBCXX_ABI Deprecated
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// Define if compatibility should be provided for -mlong-double-64.
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#undef _GLIBCXX_LONG_DOUBLE_COMPAT
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// Inline namespace for long double 128 mode.
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#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
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namespace std
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{
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inline namespace __gnu_cxx_ldbl128 { }
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}
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# define _GLIBCXX_NAMESPACE_LDBL __gnu_cxx_ldbl128::
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# define _GLIBCXX_BEGIN_NAMESPACE_LDBL namespace __gnu_cxx_ldbl128 {
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# define _GLIBCXX_END_NAMESPACE_LDBL }
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#else
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# define _GLIBCXX_NAMESPACE_LDBL
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# define _GLIBCXX_BEGIN_NAMESPACE_LDBL
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# define _GLIBCXX_END_NAMESPACE_LDBL
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#endif
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#if _GLIBCXX_USE_CXX11_ABI
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# define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_CXX11
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# define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_CXX11
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# define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_CXX11
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#else
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# define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_LDBL
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# define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_LDBL
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# define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_LDBL
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#endif
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// Debug Mode implies checking assertions.
|
|
#if defined(_GLIBCXX_DEBUG) && !defined(_GLIBCXX_ASSERTIONS)
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# define _GLIBCXX_ASSERTIONS 1
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#endif
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|
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// Disable std::string explicit instantiation declarations in order to assert.
|
|
#ifdef _GLIBCXX_ASSERTIONS
|
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# undef _GLIBCXX_EXTERN_TEMPLATE
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# define _GLIBCXX_EXTERN_TEMPLATE -1
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#endif
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|
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// Assert.
|
|
#if defined(_GLIBCXX_ASSERTIONS) \
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|| defined(_GLIBCXX_PARALLEL) || defined(_GLIBCXX_PARALLEL_ASSERTIONS)
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namespace std
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{
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|
// Avoid the use of assert, because we're trying to keep the <cassert>
|
|
// include out of the mix.
|
|
extern "C++" _GLIBCXX_NORETURN
|
|
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) \
|
|
if (__builtin_expect(!bool(_Condition), false)) \
|
|
std::__replacement_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \
|
|
#_Condition)
|
|
#endif
|
|
|
|
#if defined(_GLIBCXX_ASSERTIONS)
|
|
# define __glibcxx_assert_2(_Condition) __glibcxx_assert_impl(_Condition)
|
|
#else
|
|
# define __glibcxx_assert_2(_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
|
|
# if __GNUC__ >= 9
|
|
# define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1
|
|
# endif
|
|
# if __GNUC__ >= 11
|
|
# define _GLIBCXX_HAVE_BUILTIN_IS_SAME 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_HAVE_BUILTIN_IS_SAME 1
|
|
# endif
|
|
#endif // GCC
|
|
|
|
#if _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
# define __glibcxx_assert_1(_Condition) \
|
|
if (__builtin_is_constant_evaluated()) \
|
|
{ \
|
|
void __failed_assertion(); \
|
|
if (!bool(_Condition)) \
|
|
__failed_assertion(); \
|
|
} \
|
|
else
|
|
#else
|
|
# define __glibcxx_assert_1(_Condition)
|
|
#endif
|
|
|
|
# define __glibcxx_assert(_Condition) \
|
|
do { \
|
|
__glibcxx_assert_1(_Condition) \
|
|
{ __glibcxx_assert_2(_Condition); } \
|
|
} while (false)
|
|
|
|
|
|
// 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.
|