00001 // This file is a part of Aurelia. 00002 // Copyright (C) 2010 Valentin David 00003 // Copyright (C) 2010 University of Bergen 00004 // 00005 // This program is free software: you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation, either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program. If not, see <http://www.gnu.org/licenses/>. 00017 #ifndef __MHASH_HH 00018 # define __MHASH_HH 00019 00020 # include <functional> 00021 # include <concept/concept_tools.hh> 00022 # include <type_traits/is_callable.hh> 00023 # include <wrappers/members.hh> 00024 # include <memory> 00025 00026 namespace aurelia { 00027 00028 DEF_MEMBER_WRAPPER(hash); 00029 00032 template <typename T, bool> 00033 struct try_member_hash; 00034 00035 template <typename T> 00036 struct try_member_hash<T, false>: public std::hash<T> { 00037 }; 00038 00039 template <typename T> 00040 struct try_member_hash<T, true>: public member_hash { 00041 }; 00042 00046 template <typename T> 00047 struct mhash: 00048 public try_member_hash 00049 <T, IF(catsfoot::is_callable<member_hash(const T)>)> { 00050 }; 00051 00052 } 00053 00054 #endif