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Diffstat (limited to 'libstdc++-v3/include/std/typeindex')
-rw-r--r-- | libstdc++-v3/include/std/typeindex | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/typeindex b/libstdc++-v3/include/std/typeindex new file mode 100644 index 000000000..79b3eadf7 --- /dev/null +++ b/libstdc++-v3/include/std/typeindex @@ -0,0 +1,109 @@ +// C++0x typeindex -*- C++ -*- + +// Copyright (C) 2010 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 include/typeindex + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_TYPEINDEX +#define _GLIBCXX_TYPEINDEX 1 + +#pragma GCC system_header + +#ifndef __GXX_EXPERIMENTAL_CXX0X__ +# include <bits/c++0x_warning.h> +#else + +#include <typeinfo> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + @brief The class type_index provides a simple wrapper for type_info + which can be used as an index type in associative containers (23.6) + and in unordered associative containers (23.7). + */ + struct type_index + { + type_index(const type_info& __rhs) + : _M_target(&__rhs) { } + + bool + operator==(const type_index& __rhs) const + { return *_M_target == *__rhs._M_target; } + + bool + operator!=(const type_index& __rhs) const + { return *_M_target != *__rhs._M_target; } + + bool + operator<(const type_index& __rhs) const + { return _M_target->before(*__rhs._M_target); } + + bool + operator<=(const type_index& __rhs) const + { return !__rhs._M_target->before(*_M_target); } + + bool + operator>(const type_index& __rhs) const + { return __rhs._M_target->before(*_M_target); } + + bool + operator>=(const type_index& __rhs) const + { return !_M_target->before(*__rhs._M_target); } + + size_t + hash_code() const + { return _M_target->hash_code(); } + + const char* + name() const + { return _M_target->name(); } + + private: + const type_info* _M_target; + }; + + template<typename _Tp> struct hash; + + /// std::hash specialization for type_index. + template<> + struct hash<type_index> + { + typedef size_t result_type; + typedef type_index argument_type; + + size_t + operator()(const type_index& __ti) const + { return __ti.hash_code(); } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // __GXX_EXPERIMENTAL_CXX0X__ + +#endif // _GLIBCXX_TYPEINDEX |