combptr.icc
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, 2003 00008 * 00009 * Last modified: 00010 * $Date: 2007-08-09 15:30:21 +0200 (Thu, 09 Aug 2007) $ by $Author: tack $ 00011 * $Revision: 4790 $ 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 Int { namespace Distinct { 00039 00040 template <class T> 00041 forceinline 00042 CombPtrFlag<T>::CombPtrFlag(T* p1, T* p2) 00043 : cpf(reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2)) {} 00044 00045 template <class T> 00046 forceinline T* 00047 CombPtrFlag<T>::ptr(T* p) const { 00048 return reinterpret_cast<T*>((cpf&~1) ^ reinterpret_cast<ptrdiff_t>(p)); 00049 } 00050 00051 template <class T> 00052 forceinline int 00053 CombPtrFlag<T>::is_set(void) const { 00054 return static_cast<int>(cpf&1); 00055 } 00056 00057 template <class T> 00058 forceinline void 00059 CombPtrFlag<T>::set(void) { 00060 cpf |= 1; 00061 } 00062 00063 template <class T> 00064 forceinline void 00065 CombPtrFlag<T>::unset(void) { 00066 cpf &= ~1; 00067 } 00068 00069 template <class T> 00070 forceinline void 00071 CombPtrFlag<T>::init(T* p1, T* p2) { 00072 cpf = reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2); 00073 } 00074 00075 }}} 00076 00077 // STATISTICS: int-prop 00078