| // -*- C++ -*- |
| |
| // Copyright (C) 2005-2014 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 binary_heap_/entry_pred.hpp |
| * Contains an implementation class for a binary_heap. |
| */ |
| |
| #ifndef PB_DS_BINARY_HEAP_ENTRY_PRED_HPP |
| #define PB_DS_BINARY_HEAP_ENTRY_PRED_HPP |
| |
| namespace __gnu_pbds |
| { |
| namespace detail |
| { |
| /// Entry predicate primary class template. |
| template<typename _VTp, typename Pred, typename _Alloc, bool No_Throw> |
| struct entry_pred; |
| |
| /// Specialization, true. |
| template<typename _VTp, typename Pred, typename _Alloc> |
| struct entry_pred<_VTp, Pred, _Alloc, true> |
| { |
| typedef Pred type; |
| }; |
| |
| /// Specialization, false. |
| template<typename _VTp, typename Pred, typename _Alloc> |
| struct entry_pred<_VTp, Pred, _Alloc, false> |
| { |
| private: |
| typedef typename _Alloc::template rebind<_VTp> __rebind_v; |
| |
| public: |
| typedef typename __rebind_v::other::const_pointer entry; |
| |
| struct type : public Pred |
| { |
| inline |
| type() { } |
| |
| inline |
| type(const Pred& other) : Pred(other) { } |
| |
| inline bool |
| operator()(entry p_v) const |
| { return Pred::operator()(*p_v); } |
| }; |
| }; |
| } // namespace detail |
| } // namespace __gnu_pbds |
| |
| #endif // #ifndef PB_DS_BINARY_HEAP_ENTRY_PRED_HPP |