var.hpp
Go to the documentation of this file.00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Christian Schulte <schulte@gecode.org> 00005 * 00006 * Copyright: 00007 * Christian Schulte, 2008 00008 * 00009 * Last modified: 00010 * $Date: 2009-10-13 16:57:59 +0200 (Tue, 13 Oct 2009) $ by $Author: schulte $ 00011 * $Revision: 9894 $ 00012 * 00013 * This file is part of Gecode, the generic constraint 00014 * development environment: 00015 * http://www.gecode.org 00016 * 00017 * Permission is hereby granted, free of charge, to any person obtaining 00018 * a copy of this software and associated documentation files (the 00019 * "Software"), to deal in the Software without restriction, including 00020 * without limitation the rights to use, copy, modify, merge, publish, 00021 * distribute, sublicense, and/or sell copies of the Software, and to 00022 * permit persons to whom the Software is furnished to do so, subject to 00023 * the following conditions: 00024 * 00025 * The above copyright notice and this permission notice shall be 00026 * included in all copies or substantial portions of the Software. 00027 * 00028 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00029 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00030 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00031 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00032 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00033 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00034 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00035 * 00036 */ 00037 00038 namespace Gecode { 00039 00044 template<class VarImp> 00045 class VarBase { 00046 protected: 00048 VarImp* varimp; 00050 VarBase(void); 00052 VarBase(VarImp* x); 00053 public: 00055 00056 00057 VarImp* var(void) const; 00059 unsigned int degree(void) const; 00061 double afc(void) const; 00063 00064 00065 00066 bool same(const VarBase<VarImp>& y) const; 00068 bool before(const VarBase<VarImp>& y) const; 00070 }; 00071 00072 00073 /* 00074 * Variable: contains a pointer to a variable implementation 00075 * 00076 */ 00077 template<class VarImp> 00078 forceinline 00079 VarBase<VarImp>::VarBase(void) 00080 : varimp(NULL) {} 00081 template<class VarImp> 00082 forceinline 00083 VarBase<VarImp>::VarBase(VarImp* x) 00084 : varimp(x) {} 00085 template<class VarImp> 00086 forceinline VarImp* 00087 VarBase<VarImp>::var(void) const { 00088 return varimp; 00089 } 00090 template<class VarImp> 00091 forceinline unsigned int 00092 VarBase<VarImp>::degree(void) const { 00093 return varimp->degree(); 00094 } 00095 template<class VarImp> 00096 forceinline double 00097 VarBase<VarImp>::afc(void) const { 00098 return varimp->afc(); 00099 } 00100 template<class VarImp> 00101 forceinline bool 00102 VarBase<VarImp>::same(const VarBase<VarImp>& y) const { 00103 return var() == y.var(); 00104 } 00105 template<class VarImp> 00106 forceinline bool 00107 VarBase<VarImp>::before(const VarBase<VarImp>& y) const { 00108 return var() < y.var(); 00109 } 00110 00111 } 00112 00113 // STATISTICS: kernel-var