ngl.cpp
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, 2013 00008 * 00009 * Last modified: 00010 * $Date: 2013-07-04 17:03:13 +0200 (Thu, 04 Jul 2013) $ by $Author: schulte $ 00011 * $Revision: 13801 $ 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 #include <gecode/set/branch.hh> 00039 00040 namespace Gecode { namespace Set { namespace Branch { 00041 00042 NGL* 00043 IncNGL::copy(Space& home, bool share) { 00044 return new (home) IncNGL(home,share,*this); 00045 } 00046 NGL::Status 00047 IncNGL::status(const Space&) const { 00048 // Is n in the glb(x)? 00049 if (x.contains(n)) 00050 return NGL::SUBSUMED; 00051 else 00052 // Is n not in the lub(x)? 00053 return x.notContains(n) ? NGL::FAILED : NGL::NONE; 00054 } 00055 ExecStatus 00056 IncNGL::prune(Space& home) { 00057 return me_failed(x.exclude(home,n)) ? ES_FAILED : ES_OK; 00058 } 00059 00060 00061 NGL* 00062 ExcNGL::copy(Space& home, bool share) { 00063 return new (home) ExcNGL(home,share,*this); 00064 } 00065 NGL::Status 00066 ExcNGL::status(const Space&) const { 00067 // Is n not in the lub(x)? 00068 if (x.notContains(n)) 00069 return NGL::SUBSUMED; 00070 else 00071 // Is n in the lub(x)? 00072 return x.contains(n) ? NGL::FAILED : NGL::NONE; 00073 } 00074 ExecStatus 00075 ExcNGL::prune(Space& home) { 00076 return me_failed(x.include(home,n)) ? ES_FAILED : ES_OK; 00077 } 00078 00079 }}} 00080 00081 // STATISTICS: set-branch