// -*- C++ -*- // Copyright (C) 2005-2013 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 // . // 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 detail/types_traits.hpp * Contains a traits class of types used by containers. */ #ifndef PB_DS_TYPES_TRAITS_HPP #define PB_DS_TYPES_TRAITS_HPP #include #include #include #include #include namespace __gnu_pbds { namespace detail { /** * @addtogroup traits Traits * @{ */ /// Primary template. template struct no_throw_copies { static const bool __simple = is_simple::value && is_simple::value; typedef integral_constant indicator; }; /// Specialization. template struct no_throw_copies { typedef integral_constant::value> indicator; }; /// Stored value. template struct stored_value { typedef _Tv value_type; value_type m_value; }; /// Stored hash. template struct stored_hash { typedef _Th hash_type; hash_type m_hash; }; /// Primary template for representation of stored data. /// Two types of data can be stored: value and hash. template struct stored_data : public stored_value<_Tv>, public stored_hash<_Th> { }; /// Specialization for representation of stored data of just value type. template struct stored_data<_Tv, null_type> : public stored_value<_Tv> { }; /// Primary template. template struct type_base; /** * Specialization of type_base for the case where the hash value * is not stored alongside each value. */ template struct type_base { public: typedef typename _Alloc::size_type size_type; private: typedef typename _Alloc::template rebind __rebind_m; typedef typename __rebind_m::other __rebind_ma; typedef std::pair __value_type; typedef typename _Alloc::template rebind<__value_type> __rebind_v; typedef typename __rebind_v::other __rebind_va; public: typedef typename __rebind_ma::value_type mapped_type; typedef typename __rebind_ma::pointer mapped_pointer; typedef typename __rebind_ma::const_pointer mapped_const_pointer; typedef typename __rebind_ma::reference mapped_reference; typedef typename __rebind_ma::const_reference mapped_const_reference; typedef typename __rebind_va::value_type value_type; typedef typename __rebind_va::pointer pointer; typedef typename __rebind_va::const_pointer const_pointer; typedef typename __rebind_va::reference reference; typedef typename __rebind_va::const_reference const_reference; typedef stored_data stored_data_type; }; /** * Specialization of type_base for the case where the hash value * is stored alongside each value. */ template struct type_base { public: typedef typename _Alloc::size_type size_type; private: typedef typename _Alloc::template rebind __rebind_m; typedef typename __rebind_m::other __rebind_ma; typedef std::pair __value_type; typedef typename _Alloc::template rebind<__value_type> __rebind_v; typedef typename __rebind_v::other __rebind_va; public: typedef typename __rebind_ma::value_type mapped_type; typedef typename __rebind_ma::pointer mapped_pointer; typedef typename __rebind_ma::const_pointer mapped_const_pointer; typedef typename __rebind_ma::reference mapped_reference; typedef typename __rebind_ma::const_reference mapped_const_reference; typedef typename __rebind_va::value_type value_type; typedef typename __rebind_va::pointer pointer; typedef typename __rebind_va::const_pointer const_pointer; typedef typename __rebind_va::reference reference; typedef typename __rebind_va::const_reference const_reference; typedef stored_data stored_data_type; }; /** * Specialization of type_base for the case where the hash value * is not stored alongside each value. */ template struct type_base { public: typedef typename _Alloc::size_type size_type; typedef Key value_type; private: typedef typename _Alloc::template rebind __rebind_m; typedef typename __rebind_m::other __rebind_ma; typedef typename _Alloc::template rebind __rebind_v; typedef typename __rebind_v::other __rebind_va; public: typedef typename __rebind_ma::value_type mapped_type; typedef typename __rebind_ma::pointer mapped_pointer; typedef typename __rebind_ma::const_pointer mapped_const_pointer; typedef typename __rebind_ma::reference mapped_reference; typedef typename __rebind_ma::const_reference mapped_const_reference; typedef typename __rebind_va::pointer pointer; typedef typename __rebind_va::const_pointer const_pointer; typedef typename __rebind_va::reference reference; typedef typename __rebind_va::const_reference const_reference; typedef stored_data stored_data_type; static null_type s_null_type; }; template null_type type_base::s_null_type; /** * Specialization of type_base for the case where the hash value * is stored alongside each value. */ template struct type_base { public: typedef typename _Alloc::size_type size_type; typedef Key value_type; private: typedef typename _Alloc::template rebind __rebind_m; typedef typename __rebind_m::other __rebind_ma; typedef typename _Alloc::template rebind __rebind_v; typedef typename __rebind_v::other __rebind_va; public: typedef typename __rebind_ma::value_type mapped_type; typedef typename __rebind_ma::pointer mapped_pointer; typedef typename __rebind_ma::const_pointer mapped_const_pointer; typedef typename __rebind_ma::reference mapped_reference; typedef typename __rebind_ma::const_reference mapped_const_reference; typedef typename __rebind_va::pointer pointer; typedef typename __rebind_va::const_pointer const_pointer; typedef typename __rebind_va::reference reference; typedef typename __rebind_va::const_reference const_reference; typedef stored_data stored_data_type; static null_type s_null_type; }; template null_type type_base::s_null_type; /// Type base dispatch. template struct type_dispatch { typedef type_base type; }; /// Traits for abstract types. template struct types_traits : public type_dispatch::type { private: typedef no_throw_copies __nothrowcopy; typedef typename _Alloc::template rebind::other __rebind_a; public: typedef typename _Alloc::size_type size_type; typedef typename __rebind_a::value_type key_type; typedef typename __rebind_a::pointer key_pointer; typedef typename __rebind_a::const_pointer key_const_pointer; typedef typename __rebind_a::reference key_reference; typedef typename __rebind_a::const_reference key_const_reference; typedef std::pair comp_hash; typedef integral_constant store_extra; typedef typename __nothrowcopy::indicator no_throw_indicator; store_extra m_store_extra_indicator; no_throw_indicator m_no_throw_copies_indicator; }; //@} } // namespace detail } // namespace __gnu_pbds #endif