values-unique.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 * 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 00049 template<class I> 00050 class Unique { 00051 private: 00053 IsValueIter<I> _checkI; 00054 protected: 00056 I i; 00057 public: 00059 00060 00061 Unique(void); 00063 Unique(I& i); 00065 void init(I& i); 00067 00069 00070 00071 bool operator ()(void) const; 00073 void operator ++(void); 00075 00077 00078 00079 int val(void) const; 00081 }; 00082 00083 template<class I> 00084 forceinline 00085 Unique<I>::Unique(void) {} 00086 00087 template<class I> 00088 forceinline 00089 Unique<I>::Unique(I& i0) 00090 : i(i0) {} 00091 00092 template<class I> 00093 forceinline void 00094 Unique<I>::init(I& i0) { 00095 i = i0; 00096 } 00097 00098 template<class I> 00099 forceinline void 00100 Unique<I>::operator ++(void) { 00101 int n=i; 00102 do { 00103 ++i; 00104 } while (i() && (i.val() == n)); 00105 } 00106 template<class I> 00107 forceinline bool 00108 Unique<I>::operator ()(void) const { 00109 return i(); 00110 } 00111 00112 template<class I> 00113 forceinline int 00114 Unique<I>::val(void) const { 00115 return i.val(); 00116 } 00117 00118 }}} 00119 00120 // STATISTICS: iter-any 00121