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 * 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 00045 template<class I> 00046 class Unique { 00047 protected: 00049 I i; 00050 public: 00052 00053 00054 Unique(void); 00056 Unique(I& i); 00058 void init(I& i); 00060 00062 00063 00064 bool operator ()(void) const; 00066 void operator ++(void); 00068 00070 00071 00072 int val(void) const; 00074 }; 00075 00076 template<class I> 00077 forceinline 00078 Unique<I>::Unique(void) {} 00079 00080 template<class I> 00081 forceinline 00082 Unique<I>::Unique(I& i0) 00083 : i(i0) {} 00084 00085 template<class I> 00086 forceinline void 00087 Unique<I>::init(I& i0) { 00088 i = i0; 00089 } 00090 00091 template<class I> 00092 forceinline void 00093 Unique<I>::operator ++(void) { 00094 int n=i; 00095 do { 00096 ++i; 00097 } while (i() && (i.val() == n)); 00098 } 00099 template<class I> 00100 forceinline bool 00101 Unique<I>::operator ()(void) const { 00102 return i(); 00103 } 00104 00105 template<class I> 00106 forceinline int 00107 Unique<I>::val(void) const { 00108 return i.val(); 00109 } 00110 00111 }}} 00112 00113 // STATISTICS: iter-any 00114