# types_traits.hpp

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    00001 // -*- C++ -*-
    00002
    00003 // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
    00004 //
    00005 // This file is part of the GNU ISO C++ Library.  This library is free
    00006 // software; you can redistribute it and/or modify it under the terms
    00007 // of the GNU General Public License as published by the Free Software
    00008 // Foundation; either version 3, or (at your option) any later
    00009 // version.
    00010
    00011 // This library is distributed in the hope that it will be useful, but
    00012 // WITHOUT ANY WARRANTY; without even the implied warranty of
    00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00014 // General Public License for more details.
    00015
    00016 // Under Section 7 of GPL version 3, you are granted additional
    00017 // permissions described in the GCC Runtime Library Exception, version
    00018 // 3.1, as published by the Free Software Foundation.
    00019
    00020 // You should have received a copy of the GNU General Public License and
    00021 // a copy of the GCC Runtime Library Exception along with this program;
    00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
    00023 // <http://www.gnu.org/licenses/>.
    00024
    00025 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
    00026
    00027 // Permission to use, copy, modify, sell, and distribute this software
    00028 // is hereby granted without fee, provided that the above copyright
    00029 // notice appears in all copies, and that both that copyright notice
    00030 // and this permission notice appear in supporting documentation. None
    00031 // of the above authors, nor IBM Haifa Research Laboratories, make any
    00032 // representation about the suitability of this software for any
    00033 // purpose. It is provided "as is" without express or implied
    00034 // warranty.
    00035
    00036 /**
    00037  * @file types_traits.hpp
    00038  * Contains a traits class of types used by containers.
    00039  */
    00040
    00041 #ifndef PB_DS_TYPES_TRAITS_HPP
    00042 #define PB_DS_TYPES_TRAITS_HPP
    00043
    00044 #include <ext/pb_ds/detail/basic_types.hpp>
    00045 #include <ext/pb_ds/detail/type_utils.hpp>
    00046 #include <utility>
    00047
    00048 namespace __gnu_pbds
    00049 {
    00050   namespace detail
    00051   {
    00052     template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
    00053     struct vt_base_selector
    00054     {
    00055       typedef value_type_base<Key, Mapped, Alloc, Store_Extra> type;
    00056     };
    00057
    00058     template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
    00059     struct types_traits
    00060     : public vt_base_selector<Key, Mapped, Alloc, Store_Extra>::type
    00061     {
    00062       typedef typename Alloc::template rebind<Key>::other key_allocator;
    00063       typedef typename key_allocator::value_type key_type;
    00064       typedef typename key_allocator::pointer key_pointer;
    00065       typedef typename key_allocator::const_pointer const_key_pointer;
    00066       typedef typename key_allocator::reference key_reference;
    00067       typedef typename key_allocator::const_reference const_key_reference;
    00068       typedef typename Alloc::size_type size_type;
    00069
    00070       // Extra value (used when the extra value is stored with each value).
    00071       typedef std::pair<size_type, size_type>   comp_hash;
    00072
    00073       typedef integral_constant<int, Store_Extra> store_extra;
    00074       store_extra   m_store_extra_indicator;
    00075
    00076       typedef typename no_throw_copies<Key, Mapped>::indicator no_throw_copies;
    00077       no_throw_copies   m_no_throw_copies_indicator;
    00078     };
    00079   } // namespace detail
    00080 } // namespace __gnu_pbds
    00081
    00082 #endif