values-offset.hpp
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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 * Last modified: 00010 * $Date: 2009-09-08 21:10:29 +0200 (Tue, 08 Sep 2009) $ by $Author: schulte $ 00011 * $Revision: 9692 $ 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 { namespace Iter { namespace Values { 00039 00045 template<class I> 00046 class Offset { 00047 private: 00049 IsValueIter<I> _checkI; 00050 protected: 00052 I i; 00054 int c; 00055 public: 00057 00058 00059 Offset(void); 00061 Offset(I& i, int c); 00063 void init(I& i, int c); 00065 00067 00068 00069 bool operator ()(void) const; 00071 void operator ++(void); 00073 00075 00076 00077 int val(void) const; 00079 }; 00080 00081 00082 template<class I> 00083 forceinline 00084 Offset<I>::Offset(void) {} 00085 00086 template<class I> 00087 forceinline void 00088 Offset<I>::init(I& i0, int c0) { 00089 i = i0; c = c0; 00090 } 00091 00092 template<class I> 00093 forceinline 00094 Offset<I>::Offset(I& i0, int c0) : i(i0), c(c0) {} 00095 00096 template<class I> 00097 forceinline void 00098 Offset<I>::operator ++(void) { 00099 ++i; 00100 } 00101 template<class I> 00102 forceinline bool 00103 Offset<I>::operator ()(void) const { 00104 return i(); 00105 } 00106 00107 template<class I> 00108 forceinline int 00109 Offset<I>::val(void) const { 00110 return i.val()+c; 00111 } 00112 00113 }}} 00114 00115 // STATISTICS: iter-any 00116