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Diffstat (limited to 'libstdc++-v3/include/tr1/utility')
-rw-r--r-- | libstdc++-v3/include/tr1/utility | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/libstdc++-v3/include/tr1/utility b/libstdc++-v3/include/tr1/utility new file mode 100644 index 000000000..ef3673a44 --- /dev/null +++ b/libstdc++-v3/include/tr1/utility @@ -0,0 +1,109 @@ +// TR1 utility -*- C++ -*- + +// Copyright (C) 2004, 2005, 2006, 2007, 2008. 2009, 2010, 2011 +// 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 tr1/utility + * This is a TR1 C++ Library header. + */ + +#ifndef _GLIBCXX_TR1_UTILITY +#define _GLIBCXX_TR1_UTILITY 1 + +#pragma GCC system_header + +#include <bits/c++config.h> +#include <bits/stl_relops.h> +#include <bits/stl_pair.h> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +namespace tr1 +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template<class _Tp> + class tuple_size; + + template<int _Int, class _Tp> + class tuple_element; + + // Various functions which give std::pair a tuple-like interface. + template<class _Tp1, class _Tp2> + struct tuple_size<std::pair<_Tp1, _Tp2> > + { static const int value = 2; }; + + template<class _Tp1, class _Tp2> + const int + tuple_size<std::pair<_Tp1, _Tp2> >::value; + + template<class _Tp1, class _Tp2> + struct tuple_element<0, std::pair<_Tp1, _Tp2> > + { typedef _Tp1 type; }; + + template<class _Tp1, class _Tp2> + struct tuple_element<1, std::pair<_Tp1, _Tp2> > + { typedef _Tp2 type; }; + + template<int _Int> + struct __pair_get; + + template<> + struct __pair_get<0> + { + template<typename _Tp1, typename _Tp2> + static _Tp1& __get(std::pair<_Tp1, _Tp2>& __pair) + { return __pair.first; } + + template<typename _Tp1, typename _Tp2> + static const _Tp1& __const_get(const std::pair<_Tp1, _Tp2>& __pair) + { return __pair.first; } + }; + + template<> + struct __pair_get<1> + { + template<typename _Tp1, typename _Tp2> + static _Tp2& __get(std::pair<_Tp1, _Tp2>& __pair) + { return __pair.second; } + + template<typename _Tp1, typename _Tp2> + static const _Tp2& __const_get(const std::pair<_Tp1, _Tp2>& __pair) + { return __pair.second; } + }; + + template<int _Int, class _Tp1, class _Tp2> + inline typename tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type& + get(std::pair<_Tp1, _Tp2>& __in) + { return __pair_get<_Int>::__get(__in); } + + template<int _Int, class _Tp1, class _Tp2> + inline const typename tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type& + get(const std::pair<_Tp1, _Tp2>& __in) + { return __pair_get<_Int>::__const_get(__in); } + +_GLIBCXX_END_NAMESPACE_VERSION +} +} + +#endif // _GLIBCXX_TR1_UTILITY |