seq.cpp
Go to the documentation of this file.00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Guido Tack <tack@gecode.org> 00005 * Christian Schulte <schulte@gecode.org> 00006 * 00007 * Contributing authors: 00008 * Gabor Szokoli <szokoli@gecode.org> 00009 * 00010 * Copyright: 00011 * Guido Tack, 2004 00012 * Christian Schulte, 2004 00013 * Gabor Szokoli, 2004 00014 * 00015 * This file is part of Gecode, the generic constraint 00016 * development environment: 00017 * http://www.gecode.org 00018 * 00019 * Permission is hereby granted, free of charge, to any person obtaining 00020 * a copy of this software and associated documentation files (the 00021 * "Software"), to deal in the Software without restriction, including 00022 * without limitation the rights to use, copy, modify, merge, publish, 00023 * distribute, sublicense, and/or sell copies of the Software, and to 00024 * permit persons to whom the Software is furnished to do so, subject to 00025 * the following conditions: 00026 * 00027 * The above copyright notice and this permission notice shall be 00028 * included in all copies or substantial portions of the Software. 00029 * 00030 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00031 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00032 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00033 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00034 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00035 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00036 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00037 * 00038 */ 00039 00040 #include <gecode/set/sequence.hh> 00041 00042 namespace Gecode { namespace Set { namespace Sequence { 00043 00044 /* 00045 * "Sequence" propagator 00046 * 00047 */ 00048 00049 Actor* 00050 Seq::copy(Space& home) { 00051 return new (home) Seq(home,*this); 00052 } 00053 00054 ExecStatus 00055 Seq::propagate(Space& home, const ModEventDelta&) { 00056 bool modified = false; 00057 bool assigned; 00058 do { 00059 assigned = false; modified = false; 00060 GECODE_ES_CHECK(propagateSeq(home, modified, assigned, x)); 00061 } while (assigned || modified); 00062 00063 for (int i=x.size(); i--;) 00064 if (!x[i].assigned()) 00065 return ES_FIX; 00066 00067 return home.ES_SUBSUMED(*this); 00068 } 00069 00070 }}} 00071 00072 // STATISTICS: set-prop