types_traits.hpp revision 169691
1// -*- C++ -*- 2 3// Copyright (C) 2005, 2006 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 2, 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// You should have received a copy of the GNU General Public License 17// along with this library; see the file COPYING. If not, write to 18// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19// MA 02111-1307, USA. 20 21// As a special exception, you may use this file as part of a free 22// software library without restriction. Specifically, if other files 23// instantiate templates or use macros or inline functions from this 24// file, or you compile this file and link it with other files to 25// produce an executable, this file does not by itself cause the 26// resulting executable to be covered by the GNU General Public 27// License. This exception does not however invalidate any other 28// reasons why the executable file might be covered by the GNU General 29// Public License. 30 31// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33// Permission to use, copy, modify, sell, and distribute this software 34// is hereby granted without fee, provided that the above copyright 35// notice appears in all copies, and that both that copyright notice 36// and this permission notice appear in supporting documentation. None 37// of the above authors, nor IBM Haifa Research Laboratories, make any 38// representation about the suitability of this software for any 39// purpose. It is provided "as is" without express or implied 40// warranty. 41 42/** 43 * @file types_traits.hpp 44 * Contains a traits class of types used by containers. 45 */ 46 47#ifndef PB_DS_TYPES_TRAITS_HPP 48#define PB_DS_TYPES_TRAITS_HPP 49 50#include <ext/pb_ds/detail/basic_types.hpp> 51#include <ext/pb_ds/detail/type_utils.hpp> 52#include <utility> 53 54namespace pb_ds 55{ 56 namespace detail 57 { 58 template<typename Key, typename Mapped, typename Alloc, bool Store_Extra> 59 struct vt_base_selector 60 { 61 typedef value_type_base<Key, Mapped, Alloc, Store_Extra> type; 62 }; 63 64 template<typename Key, typename Mapped, typename Alloc, bool Store_Extra> 65 struct types_traits 66 : public vt_base_selector<Key, Mapped, Alloc, Store_Extra>::type 67 { 68 typedef typename Alloc::template rebind<Key>::other key_allocator; 69 typedef typename key_allocator::value_type key_type; 70 typedef typename key_allocator::pointer key_pointer; 71 typedef typename key_allocator::const_pointer const_key_pointer; 72 typedef typename key_allocator::reference key_reference; 73 typedef typename key_allocator::const_reference const_key_reference; 74 typedef typename Alloc::size_type size_type; 75 76 // Extra value (used when the extra value is stored with each value). 77 typedef std::pair<size_type, size_type> comp_hash; 78 79 integral_constant<int, Store_Extra> m_store_extra_indicator; 80 typename no_throw_copies<Key, Mapped>::indicator m_no_throw_copies_indicator; 81 }; 82 } // namespace detail 83} // namespace pb_ds 84 85#endif 86