libstdc++
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00001 // -*- C++ -*- 00002 00003 // Copyright (C) 2005, 2006, 2009, 2011 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the terms 00007 // of the GNU General Public License as published by the Free Software 00008 // Foundation; either version 3, or (at your option) any later 00009 // version. 00010 00011 // This library is distributed in the hope that it will be useful, but 00012 // WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 // General Public License for more details. 00015 00016 // Under Section 7 of GPL version 3, you are granted additional 00017 // permissions described in the GCC Runtime Library Exception, version 00018 // 3.1, as published by the Free Software Foundation. 00019 00020 // You should have received a copy of the GNU General Public License and 00021 // a copy of the GCC Runtime Library Exception along with this program; 00022 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 00023 // <http://www.gnu.org/licenses/>. 00024 00025 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 00026 00027 // Permission to use, copy, modify, sell, and distribute this software 00028 // is hereby granted without fee, provided that the above copyright 00029 // notice appears in all copies, and that both that copyright notice 00030 // and this permission notice appear in supporting documentation. None 00031 // of the above authors, nor IBM Haifa Research Laboratories, make any 00032 // representation about the suitability of this software for any 00033 // purpose. It is provided "as is" without express or implied 00034 // warranty. 00035 00036 /** 00037 * @file binary_heap_/entry_pred.hpp 00038 * Contains an implementation class for a binary_heap. 00039 */ 00040 00041 #ifndef PB_DS_BINARY_HEAP_ENTRY_PRED_HPP 00042 #define PB_DS_BINARY_HEAP_ENTRY_PRED_HPP 00043 00044 namespace __gnu_pbds 00045 { 00046 namespace detail 00047 { 00048 /// Entry predicate primary class template. 00049 template<typename _VTp, typename Pred, typename _Alloc, bool No_Throw> 00050 struct entry_pred; 00051 00052 /// Specialization, true. 00053 template<typename _VTp, typename Pred, typename _Alloc> 00054 struct entry_pred<_VTp, Pred, _Alloc, true> 00055 { 00056 typedef Pred type; 00057 }; 00058 00059 /// Specialization, false. 00060 template<typename _VTp, typename Pred, typename _Alloc> 00061 struct entry_pred<_VTp, Pred, _Alloc, false> 00062 { 00063 private: 00064 typedef typename _Alloc::template rebind<_VTp> __rebind_v; 00065 00066 public: 00067 typedef typename __rebind_v::other::const_pointer entry; 00068 00069 struct type : public Pred 00070 { 00071 inline 00072 type() { } 00073 00074 inline 00075 type(const Pred& other) : Pred(other) { } 00076 00077 inline bool 00078 operator()(entry p_v) const 00079 { return Pred::operator()(*p_v); } 00080 }; 00081 }; 00082 } // namespace detail 00083 } // namespace __gnu_pbds 00084 00085 #endif // #ifndef PB_DS_BINARY_HEAP_ENTRY_PRED_HPP