// -*- C++ -*- // Copyright (C) 2005, 2006, 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. // 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 // <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 basic_types.hpp * Contains basic types used by containers. */ #ifndef PB_DS_BASIC_TYPES_HPP #define PB_DS_BASIC_TYPES_HPP #include <algorithm> #include <utility> #include <ext/pb_ds/tag_and_trait.hpp> #include <ext/pb_ds/detail/type_utils.hpp> namespace __gnu_pbds { namespace detail { template<typename Key, typename Mapped, typename Allocator, bool Store_Hash> struct value_type_base; /** * Specialization of value_type_base for the case where the hash value * is not stored alongside each value. **/ template<typename Key, typename Mapped, typename Allocator> struct value_type_base<Key, Mapped, Allocator, false> { typedef typename Allocator::template rebind<Mapped>::other mapped_type_allocator; typedef typename mapped_type_allocator::value_type mapped_type; typedef typename mapped_type_allocator::pointer mapped_pointer; typedef typename mapped_type_allocator::const_pointer const_mapped_pointer; typedef typename mapped_type_allocator::reference mapped_reference; typedef typename mapped_type_allocator::const_reference const_mapped_reference; typedef typename Allocator::template rebind<std::pair<const Key, Mapped> >::other value_type_allocator; typedef typename value_type_allocator::value_type value_type; typedef typename value_type_allocator::pointer pointer; typedef typename value_type_allocator::const_pointer const_pointer; typedef typename value_type_allocator::reference reference; typedef typename value_type_allocator::const_reference const_reference; struct stored_value_type { value_type m_value; }; }; /** * Specialization of value_type_base for the case where the hash value * is stored alongside each value. **/ template<typename Key, typename Mapped, typename Allocator> struct value_type_base<Key, Mapped, Allocator, true> { typedef typename Allocator::template rebind<Mapped>::other mapped_type_allocator; typedef typename mapped_type_allocator::value_type mapped_type; typedef typename mapped_type_allocator::pointer mapped_pointer; typedef typename mapped_type_allocator::const_pointer const_mapped_pointer; typedef typename mapped_type_allocator::reference mapped_reference; typedef typename mapped_type_allocator::const_reference const_mapped_reference; typedef typename Allocator::template rebind<std::pair<const Key, Mapped> >::other value_type_allocator; typedef typename value_type_allocator::value_type value_type; typedef typename value_type_allocator::pointer pointer; typedef typename value_type_allocator::const_pointer const_pointer; typedef typename value_type_allocator::reference reference; typedef typename value_type_allocator::const_reference const_reference; struct stored_value_type { value_type m_value; typename Allocator::size_type m_hash; }; }; #define PB_DS_CLASS_T_DEC \ template<typename Key, typename Allocator> #define PB_DS_CLASS_C_DEC \ value_type_base<Key, null_mapped_type, Allocator, false> /** * Specialization of value_type_base for the case where the hash value * is not stored alongside each value. **/ template<typename Key, typename Allocator> struct value_type_base<Key, null_mapped_type, Allocator, false> { typedef typename Allocator::template rebind<null_mapped_type>::other mapped_type_allocator; typedef typename mapped_type_allocator::value_type mapped_type; typedef typename mapped_type_allocator::pointer mapped_pointer; typedef typename mapped_type_allocator::const_pointer const_mapped_pointer; typedef typename mapped_type_allocator::reference mapped_reference; typedef typename mapped_type_allocator::const_reference const_mapped_reference; typedef Key value_type; typedef typename Allocator::template rebind<value_type>::other value_type_allocator; typedef typename value_type_allocator::pointer pointer; typedef typename value_type_allocator::const_pointer const_pointer; typedef typename value_type_allocator::reference reference; typedef typename value_type_allocator::const_reference const_reference; struct stored_value_type { value_type m_value; }; static null_mapped_type s_null_mapped; }; PB_DS_CLASS_T_DEC null_mapped_type PB_DS_CLASS_C_DEC::s_null_mapped; #undef PB_DS_CLASS_T_DEC #undef PB_DS_CLASS_C_DEC #define PB_DS_CLASS_T_DEC \ template<typename Key, typename Allocator> #define PB_DS_CLASS_C_DEC \ value_type_base<Key, null_mapped_type, Allocator, true> /** * Specialization of value_type_base for the case where the hash value * is stored alongside each value. **/ template<typename Key, typename Allocator> struct value_type_base<Key, null_mapped_type, Allocator, true> { typedef typename Allocator::template rebind<null_mapped_type>::other mapped_type_allocator; typedef typename mapped_type_allocator::value_type mapped_type; typedef typename mapped_type_allocator::pointer mapped_pointer; typedef typename mapped_type_allocator::const_pointer const_mapped_pointer; typedef typename mapped_type_allocator::reference mapped_reference; typedef typename mapped_type_allocator::const_reference const_mapped_reference; typedef Key value_type; typedef typename Allocator::template rebind<value_type>::other value_type_allocator; typedef typename value_type_allocator::pointer pointer; typedef typename value_type_allocator::const_pointer const_pointer; typedef typename value_type_allocator::reference reference; typedef typename value_type_allocator::const_reference const_reference; struct stored_value_type { value_type m_value; typename Allocator::size_type m_hash; }; static null_mapped_type s_null_mapped; }; PB_DS_CLASS_T_DEC null_mapped_type PB_DS_CLASS_C_DEC::s_null_mapped; #undef PB_DS_CLASS_T_DEC #undef PB_DS_CLASS_C_DEC template<typename Key, typename Mapped> struct no_throw_copies { typedef integral_constant<int, is_simple<Key>::value && is_simple<Mapped>::value> indicator; }; template<typename Key> struct no_throw_copies<Key, null_mapped_type> { typedef integral_constant<int, is_simple<Key>::value> indicator; }; } // namespace detail } // namespace __gnu_pbds #endif