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: 2008-02-22 07:19:02 +0100 (Fri, 22 Feb 2008) $ by $Author: schulte $ 00011 * $Revision: 6276 $ 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); 00054 VarBase(const Reflection::Var& x); 00055 public: 00057 00058 00059 VarImp* var(void) const; 00061 unsigned int degree(void) const; 00063 }; 00064 00065 00070 00071 template <class VarImp> 00072 bool same(const VarBase<VarImp>& x, const VarBase<VarImp>& y); 00074 template <class VarImp> 00075 bool before(const VarBase<VarImp>& x, const VarBase<VarImp>& y); 00077 00078 00079 00080 /* 00081 * Variable: contains a pointer to a variable implementation 00082 * 00083 */ 00084 template <class VarImp> 00085 forceinline 00086 VarBase<VarImp>::VarBase(void) {} 00087 template <class VarImp> 00088 forceinline 00089 VarBase<VarImp>::VarBase(VarImp* x) 00090 : varimp(x) {} 00091 template <class VarImp> 00092 forceinline 00093 VarBase<VarImp>::VarBase(const Reflection::Var& x) 00094 : varimp(x.var<VarImp>()) {} 00095 template <class VarImp> 00096 forceinline VarImp* 00097 VarBase<VarImp>::var(void) const { 00098 return varimp; 00099 } 00100 template <class VarImp> 00101 forceinline unsigned int 00102 VarBase<VarImp>::degree(void) const { 00103 return varimp->degree(); 00104 } 00105 00106 00107 template <class VarImp> 00108 forceinline bool 00109 same(const VarBase<VarImp>& x, const VarBase<VarImp>& y) { 00110 return x.var() == y.var(); 00111 } 00112 template <class VarImp> 00113 forceinline bool 00114 before(const VarBase<VarImp>& x, const VarBase<VarImp>& y) { 00115 return x.var() < y.var(); 00116 } 00117 00118 } 00119 00120 // STATISTICS: kernel-other