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      1 // -*- C++ -*-
      2 
      3 // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
      4 //
      5 // This file is part of the GNU ISO C++ Library.  This library is free
      6 // software; you can redistribute it and/or modify it under the terms
      7 // of the GNU General Public License as published by the Free Software
      8 // Foundation; either version 3, or (at your option) any later
      9 // version.
     10 
     11 // This library is distributed in the hope that it will be useful, but
     12 // WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14 // General Public License for more details.
     15 
     16 // Under Section 7 of GPL version 3, you are granted additional
     17 // permissions described in the GCC Runtime Library Exception, version
     18 // 3.1, as published by the Free Software Foundation.
     19 
     20 // You should have received a copy of the GNU General Public License and
     21 // a copy of the GCC Runtime Library Exception along with this program;
     22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     23 // <http://www.gnu.org/licenses/>.
     24 
     25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
     26 
     27 // Permission to use, copy, modify, sell, and distribute this software
     28 // is hereby granted without fee, provided that the above copyright
     29 // notice appears in all copies, and that both that copyright notice
     30 // and this permission notice appear in supporting documentation. None
     31 // of the above authors, nor IBM Haifa Research Laboratories, make any
     32 // representation about the suitability of this software for any
     33 // purpose. It is provided "as is" without express or implied
     34 // warranty.
     35 
     36 /**
     37  * @file types_traits.hpp
     38  * Contains a traits class of types used by containers.
     39  */
     40 
     41 #ifndef PB_DS_TYPES_TRAITS_HPP
     42 #define PB_DS_TYPES_TRAITS_HPP
     43 
     44 #include <ext/pb_ds/detail/basic_types.hpp>
     45 #include <ext/pb_ds/detail/type_utils.hpp>
     46 #include <utility>
     47 
     48 namespace __gnu_pbds
     49 {
     50   namespace detail
     51   {
     52     template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
     53     struct vt_base_selector
     54     {
     55       typedef value_type_base<Key, Mapped, Alloc, Store_Extra> type;
     56     };
     57 
     58     template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
     59     struct types_traits
     60     : public vt_base_selector<Key, Mapped, Alloc, Store_Extra>::type
     61     {
     62       typedef typename Alloc::template rebind<Key>::other key_allocator;
     63       typedef typename key_allocator::value_type key_type;
     64       typedef typename key_allocator::pointer key_pointer;
     65       typedef typename key_allocator::const_pointer const_key_pointer;
     66       typedef typename key_allocator::reference key_reference;
     67       typedef typename key_allocator::const_reference const_key_reference;
     68       typedef typename Alloc::size_type size_type;
     69 
     70       // Extra value (used when the extra value is stored with each value).
     71       typedef std::pair<size_type, size_type> 	comp_hash;
     72 
     73       typedef integral_constant<int, Store_Extra> store_extra;
     74       store_extra	m_store_extra_indicator;
     75 
     76       typedef typename no_throw_copies<Key, Mapped>::indicator no_throw_copies;
     77       no_throw_copies 	m_no_throw_copies_indicator;
     78     };
     79   } // namespace detail
     80 } // namespace __gnu_pbds
     81 
     82 #endif
     83