Filename: //usr/include/c++/10////ext//pb_ds/detail/////types_traits.hpp

// -*- C++ -*- // Copyright (C) 2005-2020 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 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 <algorithm> #include <utility> #include <ext/pb_ds/tag_and_trait.hpp> #include <ext/pb_ds/detail/type_utils.hpp> #include <memory> namespace __gnu_pbds { namespace detail { /** * @addtogroup traits Traits * @{ */ /// Primary template. template<typename Key, typename Mapped> struct no_throw_copies { static const bool __simple = is_simple<Key>::value && is_simple<Mapped>::value; typedef integral_constant<int, __simple> indicator; }; /// Specialization. template<typename Key> struct no_throw_copies<Key, null_type> { typedef integral_constant<int, is_simple<Key>::value> indicator; }; /// Stored value. template<typename _Tv> struct stored_value { typedef _Tv value_type; value_type m_value; }; /// Stored hash. template<typename _Th> 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<typename _Tv, typename _Th, bool Store_Hash> struct stored_data : public stored_value<_Tv>, public stored_hash<_Th> { }; /// Specialization for representation of stored data of just value type. template<typename _Tv, typename _Th> struct stored_data<_Tv, _Th, false> : public stored_value<_Tv> { }; /// Choose value_type to be a key/value pair or just a key. template<typename Key, typename Mapped> struct select_value_type { typedef std::pair<const Key, Mapped> type; }; /// Specialization for sets where the key is the value_type. template<typename Key> struct select_value_type<Key, null_type> { typedef Key type; }; /// Base class for conditionally defining a static data member. template<typename Key, typename Mapped, typename _Alloc, bool Store_Hash> struct maybe_null_type { }; /// Specialization that defines a static data member of type null_type. template<typename Key,typename _Alloc, bool Store_Hash> struct maybe_null_type<Key, null_type, _Alloc, Store_Hash> { static null_type s_null_type; }; template<typename Key,typename _Alloc, bool Store_Hash> null_type maybe_null_type<Key, null_type, _Alloc, Store_Hash>::s_null_type; /// Consistent API for accessing allocator-related types. template<typename _Alloc, typename T> struct rebind_traits #if __cplusplus >= 201103L : std::allocator_traits<_Alloc>::template rebind_traits<T> { using reference = T&; using const_reference = const T&; }; #else : _Alloc::template rebind<T>::other { typedef typename _Alloc::template rebind<T>::other allocator_type; }; #endif /// Traits for abstract types. template<typename Key, typename Mapped, typename _Alloc, bool Store_Hash> struct types_traits : public maybe_null_type<Key, Mapped, _Alloc, Store_Hash> { public: typedef typename _Alloc::size_type size_type; typedef typename select_value_type<Key, Mapped>::type value_type; typedef Key key_type; typedef Mapped mapped_type; private: typedef rebind_traits<_Alloc, value_type> __rebind_va; typedef rebind_traits<_Alloc, key_type> __rebind_ka; typedef rebind_traits<_Alloc, mapped_type> __rebind_ma; typedef no_throw_copies<Key, Mapped> __nothrowcopy; public: 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<value_type, size_type, Store_Hash> stored_data_type; typedef typename __rebind_ka::pointer key_pointer; typedef typename __rebind_ka::const_pointer key_const_pointer; typedef typename __rebind_ka::reference key_reference; typedef typename __rebind_ka::const_reference key_const_reference; typedef std::pair<size_type, size_type> comp_hash; typedef integral_constant<int, Store_Hash> 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

./Ninja\.