f425a30a1e
2007-07-10 Paolo Carlini <pcarlini@suse.de> * include/std/utility (identity, move, forward): Add. * testsuite/20_util/move/requirements/explicit_instantiation.cc: New. * testsuite/20_util/move/1.cc: New. * testsuite/20_util/identity/value.cc: New. * testsuite/20_util/identity/requirements/typedefs.cc: New. * testsuite/20_util/identity/requirements/explicit_instantiation.cc: New. * testsuite/20_util/forward/requirements/explicit_instantiation.cc: New. * testsuite/20_util/forward/1.cc: New. * testsuite/20_util/forward/1_neg.cc: New. From-SVN: r126524
113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
// <utility> -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
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// 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 2, 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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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING. If not, write to
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// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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// Boston, MA 02110-1301, USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/** @file include/utility
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* This is a Standard C++ Library header.
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*/
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#ifndef _GLIBCXX_UTILITY
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#define _GLIBCXX_UTILITY 1
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#pragma GCC system_header
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#include <bits/c++config.h>
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#include <bits/stl_relops.h>
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#include <bits/stl_pair.h>
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#ifdef __GXX_EXPERIMENTAL_CXX0X__
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# if defined(_GLIBCXX_INCLUDE_AS_TR1)
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# error C++0x header cannot be included from TR1 header
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# endif
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# if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
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# include <tr1_impl/utility>
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# else
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# define _GLIBCXX_INCLUDE_AS_CXX0X
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# define _GLIBCXX_BEGIN_NAMESPACE_TR1
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# define _GLIBCXX_END_NAMESPACE_TR1
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# define _GLIBCXX_TR1
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# include <tr1_impl/utility>
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# undef _GLIBCXX_TR1
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# undef _GLIBCXX_END_NAMESPACE_TR1
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# undef _GLIBCXX_BEGIN_NAMESPACE_TR1
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# undef _GLIBCXX_INCLUDE_AS_CXX0X
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# endif
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#include <type_traits>
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namespace std
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{
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// 20.2.2, forward/move
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template<typename _Tp>
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struct identity
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{
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typedef _Tp type;
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};
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template<typename _Tp>
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inline _Tp&&
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forward(typename std::identity<_Tp>::type&& __t)
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{ return __t; }
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template<typename _Tp>
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inline typename std::remove_reference<_Tp>::type&&
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move(_Tp&& __t)
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{ return __t; }
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}
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#endif
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#endif /* _GLIBCXX_UTILITY */
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