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// C++0x typeindex -*- C++ -*-

// Copyright (C) 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

// .

/** @file include/typeindex

 *  This is a Standard C++ Library header.

 */

#ifndef _GLIBCXX_TYPEINDEX

#define _GLIBCXX_TYPEINDEX 1

#pragma GCC system_header

#if __cplusplus < 201103L

# include 

#else

#include 

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) noexcept

    : _M_target(&__rhs) { }

    bool

    operator==(const type_index& __rhs) const noexcept

    { return *_M_target == *__rhs._M_target; }

    bool

    operator!=(const type_index& __rhs) const noexcept

    { return *_M_target != *__rhs._M_target; }

    bool

    operator<(const type_index& __rhs) const noexcept

    { return _M_target->before(*__rhs._M_target); }

    bool

    operator<=(const type_index& __rhs) const noexcept

    { return !__rhs._M_target->before(*_M_target); }

    bool

    operator>(const type_index& __rhs) const noexcept

    { return __rhs._M_target->before(*_M_target); }

    bool

    operator>=(const type_index& __rhs) const noexcept

    { return !_M_target->before(*__rhs._M_target); }

    size_t

    hash_code() const noexcept

    { return _M_target->hash_code(); }

    const char*

    name() const

    { return _M_target->name(); }

  private:

    const type_info* _M_target;

  };

  template struct hash;

  /// std::hash specialization for type_index.

  template<>

    struct hash

    {

      typedef size_t        result_type;

      typedef type_index  argument_type;

      size_t

      operator()(const type_index& __ti) const noexcept

      { return __ti.hash_code(); }

    };

_GLIBCXX_END_NAMESPACE_VERSION

} // namespace

#endif  // C++11

#endif  // _GLIBCXX_TYPEINDEX