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: 2010-07-28 17:35:33 +0200 (Wed, 28 Jul 2010) $ by $Author: schulte $ 00011 * $Revision: 11294 $ 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 protected: 00053 I i; 00054 public: 00056 00057 00058 Unique(void); 00060 Unique(I& i); 00062 void init(I& i); 00064 00066 00067 00068 bool operator ()(void) const; 00070 void operator ++(void); 00072 00074 00075 00076 int val(void) const; 00078 }; 00079 00080 template<class I> 00081 forceinline 00082 Unique<I>::Unique(void) {} 00083 00084 template<class I> 00085 forceinline 00086 Unique<I>::Unique(I& i0) 00087 : i(i0) {} 00088 00089 template<class I> 00090 forceinline void 00091 Unique<I>::init(I& i0) { 00092 i = i0; 00093 } 00094 00095 template<class I> 00096 forceinline void 00097 Unique<I>::operator ++(void) { 00098 int n=i; 00099 do { 00100 ++i; 00101 } while (i() && (i.val() == n)); 00102 } 00103 template<class I> 00104 forceinline bool 00105 Unique<I>::operator ()(void) const { 00106 return i(); 00107 } 00108 00109 template<class I> 00110 forceinline int 00111 Unique<I>::val(void) const { 00112 return i.val(); 00113 } 00114 00115 }}} 00116 00117 // STATISTICS: iter-any 00118