values-offset.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, 2007 00008 * 00009 * This file is part of Gecode, the generic constraint 00010 * development environment: 00011 * http://www.gecode.org 00012 * 00013 * Permission is hereby granted, free of charge, to any person obtaining 00014 * a copy of this software and associated documentation files (the 00015 * "Software"), to deal in the Software without restriction, including 00016 * without limitation the rights to use, copy, modify, merge, publish, 00017 * distribute, sublicense, and/or sell copies of the Software, and to 00018 * permit persons to whom the Software is furnished to do so, subject to 00019 * the following conditions: 00020 * 00021 * The above copyright notice and this permission notice shall be 00022 * included in all copies or substantial portions of the Software. 00023 * 00024 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00025 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00026 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00027 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00028 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00029 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00030 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00031 * 00032 */ 00033 00034 namespace Gecode { namespace Iter { namespace Values { 00035 00041 template<class I> 00042 class Offset { 00043 protected: 00045 I i; 00047 int c; 00048 public: 00050 00051 00052 Offset(void); 00054 Offset(I& i, int c); 00056 void init(I& i, int c); 00058 00060 00061 00062 bool operator ()(void) const; 00064 void operator ++(void); 00066 00068 00069 00070 int val(void) const; 00072 }; 00073 00074 00075 template<class I> 00076 forceinline 00077 Offset<I>::Offset(void) {} 00078 00079 template<class I> 00080 forceinline void 00081 Offset<I>::init(I& i0, int c0) { 00082 i = i0; c = c0; 00083 } 00084 00085 template<class I> 00086 forceinline 00087 Offset<I>::Offset(I& i0, int c0) : i(i0), c(c0) {} 00088 00089 template<class I> 00090 forceinline void 00091 Offset<I>::operator ++(void) { 00092 ++i; 00093 } 00094 template<class I> 00095 forceinline bool 00096 Offset<I>::operator ()(void) const { 00097 return i(); 00098 } 00099 00100 template<class I> 00101 forceinline int 00102 Offset<I>::val(void) const { 00103 return i.val()+c; 00104 } 00105 00106 }}} 00107 00108 // STATISTICS: iter-any 00109