380 lines
12 KiB
C++
380 lines
12 KiB
C++
// Predefined symbols and macros -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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// 2006, 2007, 2008, 2009 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 c++config.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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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 current version of the C++ library in compressed ISO date format.
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#define __GLIBCXX__
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// Macros for visibility.
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// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
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// _GLIBCXX_VISIBILITY_ATTR
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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_ATTR(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_ATTR(V) _GLIBCXX_PSEUDO_VISIBILITY(V)
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#endif
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// Macros for deprecated.
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// _GLIBCXX_DEPRECATED
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// _GLIBCXX_DEPRECATED_ATTR
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#ifndef _GLIBCXX_DEPRECATED
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# define _GLIBCXX_DEPRECATED 1
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#endif
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#if defined(__DEPRECATED) && defined(__GXX_EXPERIMENTAL_CXX0X__)
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# define _GLIBCXX_DEPRECATED_ATTR __attribute__ ((__deprecated__))
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#else
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# define _GLIBCXX_DEPRECATED_ATTR
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#endif
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// Macros for activating various namespace association modes.
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// _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG
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// _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL
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// _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
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// Guide to libstdc++ namespaces.
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/*
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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 __norm { } // __normative, __shadow, __replaced
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namespace __cxx1998 { }
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namespace tr1 { }
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}
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*/
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#if __cplusplus
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#ifdef _GLIBCXX_DEBUG
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# define _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG 1
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#endif
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#ifdef _GLIBCXX_PARALLEL
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# define _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL 1
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#endif
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// Namespace association for profile
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#ifdef _GLIBCXX_PROFILE
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# define _GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE 1
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#endif
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#define _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
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// Defined if any namespace association modes are active.
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#if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG \
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|| _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL \
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|| _GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE \
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|| _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
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# define _GLIBCXX_USE_NAMESPACE_ASSOCIATION 1
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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.
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// _GLIBCXX_STD
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// _GLIBCXX_STD_D
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// _GLIBCXX_STD_P
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//
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// Macros for enclosing namespaces and possibly nested namespaces.
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// _GLIBCXX_BEGIN_NAMESPACE
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// _GLIBCXX_END_NAMESPACE
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// _GLIBCXX_BEGIN_NESTED_NAMESPACE
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// _GLIBCXX_END_NESTED_NAMESPACE
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#ifndef _GLIBCXX_USE_NAMESPACE_ASSOCIATION
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# define _GLIBCXX_STD_D _GLIBCXX_STD
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# define _GLIBCXX_STD_P _GLIBCXX_STD
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# define _GLIBCXX_STD_PR _GLIBCXX_STD
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# define _GLIBCXX_STD std
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# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) _GLIBCXX_BEGIN_NAMESPACE(X)
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# define _GLIBCXX_END_NESTED_NAMESPACE _GLIBCXX_END_NAMESPACE
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# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
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# define _GLIBCXX_END_NAMESPACE }
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#else
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# if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION // && not anything else
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# define _GLIBCXX_STD_D _GLIBCXX_STD
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# define _GLIBCXX_STD_P _GLIBCXX_STD
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# define _GLIBCXX_STD _6
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# define _GLIBCXX_BEGIN_NAMESPACE(X) _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, _6)
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# define _GLIBCXX_END_NAMESPACE _GLIBCXX_END_NESTED_NAMESPACE
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# endif
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// debug
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# if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG && !_GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && !_GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE
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# define _GLIBCXX_STD_D __norm
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# define _GLIBCXX_STD_P _GLIBCXX_STD
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# define _GLIBCXX_STD __cxx1998
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# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
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# define _GLIBCXX_END_NAMESPACE }
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# define _GLIBCXX_EXTERN_TEMPLATE -1
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# endif
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// parallel
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# if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && !_GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG && !_GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE
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# define _GLIBCXX_STD_D _GLIBCXX_STD
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# define _GLIBCXX_STD_P __norm
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# define _GLIBCXX_STD __cxx1998
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# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
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# define _GLIBCXX_END_NAMESPACE }
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# endif
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// debug + parallel
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# if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG && !_GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE
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# define _GLIBCXX_STD_D __norm
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# define _GLIBCXX_STD_P __norm
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# define _GLIBCXX_STD __cxx1998
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# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
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# define _GLIBCXX_END_NAMESPACE }
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# define _GLIBCXX_EXTERN_TEMPLATE -1
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# endif
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// profile
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# if _GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE
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# if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL || _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG
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# error Cannot use -D_GLIBCXX_PROFILE with -D_GLIBCXX_DEBUG or \
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-D_GLIBCXX_PARALLEL
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# endif
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# define _GLIBCXX_STD_D __norm
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# define _GLIBCXX_STD_P _GLIBCXX_STD
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# define _GLIBCXX_STD_PR __norm
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# define _GLIBCXX_STD __cxx1998
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# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
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# define _GLIBCXX_END_NAMESPACE }
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# endif
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# if __NO_INLINE__ && !__GXX_WEAK__
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# warning currently using namespace associated 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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# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) namespace X { namespace Y _GLIBCXX_VISIBILITY_ATTR(default) {
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# define _GLIBCXX_END_NESTED_NAMESPACE } }
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#endif
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// Namespace associations for debug mode.
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#if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG && !_GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE
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namespace std
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{
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namespace __norm { }
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inline namespace __debug { }
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inline namespace __cxx1998 { }
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}
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#endif
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// Namespace associations for parallel mode.
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#if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL
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namespace std
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{
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namespace __norm { }
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inline namespace __parallel { }
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inline namespace __cxx1998 { }
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}
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#endif
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// Namespace associations for profile mode
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#if _GLIBCXX_NAMESPACE_ASSOCIATION_PROFILE
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namespace std
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{
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namespace __norm { }
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inline namespace __profile { }
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inline namespace __cxx1998 { }
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}
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#endif
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// Namespace associations for versioning mode.
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#if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
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namespace std
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{
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inline namespace _6 { }
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}
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namespace __gnu_cxx
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{
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inline namespace _6 { }
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}
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namespace std
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{
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namespace tr1
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{
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inline namespace _6 { }
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}
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}
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#endif
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// XXX 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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// Namespace associations 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_LDBL_NAMESPACE __gnu_cxx_ldbl128::
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# define _GLIBCXX_BEGIN_LDBL_NAMESPACE namespace __gnu_cxx_ldbl128 {
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# define _GLIBCXX_END_LDBL_NAMESPACE }
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#else
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# define _GLIBCXX_LDBL_NAMESPACE
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# define _GLIBCXX_BEGIN_LDBL_NAMESPACE
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# define _GLIBCXX_END_LDBL_NAMESPACE
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#endif
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// Defines for C compatibility. In particular, define extern "C"
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// linkage only when using C++.
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# define _GLIBCXX_BEGIN_EXTERN_C extern "C" {
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# define _GLIBCXX_END_EXTERN_C }
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#else // !__cplusplus
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# undef _GLIBCXX_BEGIN_NAMESPACE
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# undef _GLIBCXX_END_NAMESPACE
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# define _GLIBCXX_BEGIN_NAMESPACE(X)
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# define _GLIBCXX_END_NAMESPACE
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# define _GLIBCXX_BEGIN_EXTERN_C
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# define _GLIBCXX_END_EXTERN_C
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#endif
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// First includes.
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// Pick up any OS-specific definitions.
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#include <bits/os_defines.h>
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// Pick up any CPU-specific definitions.
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#include <bits/cpu_defines.h>
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// If platform uses neither visibility nor psuedo-visibility,
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// specify empty default for namespace annotation macros.
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#ifndef _GLIBCXX_PSEUDO_VISIBILITY
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#define _GLIBCXX_PSEUDO_VISIBILITY(V)
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#endif
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// Allow use of "export template." This is currently not a feature
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// that g++ supports.
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// #define _GLIBCXX_EXPORT_TEMPLATE 1
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// Allow use of the GNU syntax extension, "extern template." This
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// extension is fully documented in the g++ manual, but in a nutshell,
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// it inhibits all implicit instantiations and is used throughout the
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// library to avoid multiple weak definitions for required types that
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// are already explicitly instantiated in the library binary. This
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// substantially reduces the binary size of 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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#ifndef _GLIBCXX_EXTERN_TEMPLATE
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# define _GLIBCXX_EXTERN_TEMPLATE 1
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#endif
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// Certain function definitions that are meant to be overridable from
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// user code are decorated with this macro. For some targets, this
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// macro causes these definitions to be weak.
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#ifndef _GLIBCXX_WEAK_DEFINITION
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# define _GLIBCXX_WEAK_DEFINITION
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#endif
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// Assert.
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// Avoid the use of assert, because we're trying to keep the <cassert>
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// include out of the mix.
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#if !defined(_GLIBCXX_DEBUG) && !defined(_GLIBCXX_PARALLEL)
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#define __glibcxx_assert(_Condition)
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#else
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_GLIBCXX_BEGIN_NAMESPACE(std)
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// Avoid the use of assert, because we're trying to keep the <cassert>
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// include out of the mix.
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inline void
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__replacement_assert(const char* __file, int __line,
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const char* __function, const char* __condition)
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{
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__builtin_printf("%s:%d: %s: Assertion '%s' failed.\n", __file, __line,
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__function, __condition);
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__builtin_abort();
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}
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_GLIBCXX_END_NAMESPACE
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#define __glibcxx_assert(_Condition) \
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do \
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{ \
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if (! (_Condition)) \
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std::__replacement_assert(__FILE__, __LINE__, \
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__PRETTY_FUNCTION__, #_Condition); \
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} while (false)
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#endif
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// The remainder of the prewritten config is automatic; all the
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// user hooks are listed above.
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// Create a boolean flag to be used to determine if --fast-math is set.
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#ifdef __FAST_MATH__
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# define _GLIBCXX_FAST_MATH 1
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#else
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# define _GLIBCXX_FAST_MATH 0
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#endif
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// This marks string literals in header files to be extracted for eventual
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// translation. It is primarily used for messages in thrown exceptions; see
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// src/functexcept.cc. We use __N because the more traditional _N is used
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// for something else under certain OSes (see BADNAMES).
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#define __N(msgid) (msgid)
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// For example, <windows.h> is known to #define min and max as macros...
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#undef min
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#undef max
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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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#ifndef _GLIBCXX_NOTHROW
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# ifdef __cplusplus
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# define _GLIBCXX_NOTHROW throw()
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# else
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# define _GLIBCXX_NOTHROW __attribute__((__nothrow__))
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# endif
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#endif
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// End of prewritten config; the discovered settings follow.
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