ranges-values.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, 2004 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 Ranges { 00039 00045 template<class I> 00046 class ToValues { 00047 private: 00049 IsRangeIter<I> _checkI; 00050 protected: 00052 I i; 00054 int cur; 00056 int max; 00058 void start(void); 00059 public: 00061 00062 00063 ToValues(void); 00065 ToValues(I& i); 00067 void init(I& i); 00069 00071 00072 00073 bool operator ()(void) const; 00075 void operator ++(void); 00077 00079 00080 00081 int val(void) const; 00083 }; 00084 00085 00086 00087 template<class I> 00088 forceinline 00089 ToValues<I>::ToValues(void) {} 00090 00091 template<class I> 00092 forceinline void 00093 ToValues<I>::start(void) { 00094 if (i()) { 00095 cur = i.min(); max = i.max(); 00096 } else { 00097 cur = 1; max = 0; 00098 } 00099 } 00100 00101 template<class I> 00102 forceinline 00103 ToValues<I>::ToValues(I& i0) 00104 : i(i0) { 00105 start(); 00106 } 00107 00108 template<class I> 00109 forceinline void 00110 ToValues<I>::init(I& i0) { 00111 i = i0; 00112 start(); 00113 } 00114 00115 00116 template<class I> 00117 forceinline bool 00118 ToValues<I>::operator ()(void) const { 00119 return (cur <= max); 00120 } 00121 00122 template<class I> 00123 forceinline void 00124 ToValues<I>::operator ++(void) { 00125 ++cur; 00126 if (cur > max) { 00127 ++i; 00128 if (i()) { 00129 cur = i.min(); max = i.max(); 00130 } 00131 } 00132 } 00133 00134 template<class I> 00135 forceinline int 00136 ToValues<I>::val(void) const { 00137 return cur; 00138 } 00139 00140 }}} 00141 00142 // STATISTICS: iter-any 00143