Subversion Repositories openrisc

// -*- C++ -*-

// Copyright (C) 2005, 2006, 2007, 2009 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.

// You should have received a copy of the GNU General Public License

// along with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software

// is hereby granted without fee, provided that the above copyright

// notice appears in all copies, and that both that copyright notice

// and this permission notice appear in supporting documentation. None

// of the above authors, nor IBM Haifa Research Laboratories, make any

// representation about the suitability of this software for any

// purpose. It is provided "as is" without express or implied

// warranty.

/**

 * @file native_hash_multimap.hpp

 * Contains an adapter to TR1 unordered containers.

 */

#ifndef PB_DS_NATIVE_HASH_MULTIMAP_HPP

#define PB_DS_NATIVE_HASH_MULTIMAP_HPP

#include <string>

#include <tr1/unordered_map>

#include <ext/pb_ds/detail/type_utils.hpp>

#include <ext/pb_ds/detail/standard_policies.hpp>

#include <native_type/native_hash_tag.hpp>

#include <io/xml.hpp>

namespace __gnu_pbds

{

  namespace test

  {

#define PB_DS_BASE_C_DEC \

    std::tr1::unordered_multimap<Key, Data, Hash_Fn, Eq_Fn, Allocator>

    template<typename Key,

             typename Data,

             size_t Init_Size = 8,

       class Hash_Fn = typename __gnu_pbds::detail::default_hash_fn<Key>::type,

             class Eq_Fn = std::equal_to<Key>,

             class Less_Fn = std::less<Key>,

             class Allocator = std::allocator<char> >

    class native_hash_multimap : public PB_DS_BASE_C_DEC

    {

    private:

      typedef PB_DS_BASE_C_DEC                  base_type;

      typedef std::pair<Key, Data>              pair_type;

    public:

      typedef native_hash_tag                   container_category;

      typedef Allocator                         allocator;

      typedef typename base_type::iterator      iterator;

      typedef typename base_type::const_iterator const_iterator;

      typedef

      typename allocator::template rebind<pair_type>::other::const_reference

      const_reference;

      native_hash_multimap() : base_type(Init_Size)

      { }

      template<typename It>

      native_hash_multimap(It f, It l) : base_type(f, l)

      { }

      inline void

      insert(const_reference r_val)

      {

        typedef std::pair<iterator, iterator> eq_range_t;

        eq_range_t f = base_type::equal_range(r_val.first);

        iterator it = f.first;

        while (it != f.second)

          {

            if (it->second == r_val.second)

              return;

            ++it;

          }

        base_type::insert(r_val);

      }

      inline iterator

      find(const_reference r_val)

      {

        typedef std::pair<iterator, iterator> eq_range_t;

        eq_range_t f = base_type::equal_range(r_val.first);

        iterator it = f.first;

        while (it != f.second)

          {

            if (it->second == r_val.second)

              return it;

            ++it;

          }

        return base_type::end();

      }

      inline const_iterator

      find(const_reference r_val) const

      {

        typedef std::pair<const_iterator, const_iterator> eq_range_t;

        eq_range_t f = base_type::equal_range(r_val.first);

        const_iterator it = f.first;

        while (it != f.second)

          {

            if (it->second == r_val.second)

              return it;

            ++it;

          }

        return base_type::end();

      }

      static std::string

      name()

      { return std::string("n_hash_mmap"); }

      static std::string

      desc()

      { return make_xml_tag("type", "value", "__gnucxx_hash_multimap"); }

    };

#undef PB_DS_BASE_C_DEC

  } // namespace test

} // namespace __gnu_pbds

#endif