precede.cpp
Go to the documentation of this file.00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Christopher Mears <Chris.Mears@monash.edu> 00005 * 00006 * Contributing authors: 00007 * Christian Schulte <schulte@gecode.org> 00008 * Guido Tack <tack@gecode.org> 00009 * 00010 * Copyright: 00011 * Christopher Mears, 2011 00012 * Christian Schulte, 2011 00013 * Guido Tack, 2011 00014 * 00015 * Last modified: 00016 * $Date: 2016-05-23 22:18:23 +0200 (Mon, 23 May 2016) $ by $Author: schulte $ 00017 * $Revision: 15073 $ 00018 * 00019 * This file is part of Gecode, the generic constraint 00020 * development environment: 00021 * http://www.gecode.org 00022 * 00023 * Permission is hereby granted, free of charge, to any person obtaining 00024 * a copy of this software and associated documentation files (the 00025 * "Software"), to deal in the Software without restriction, including 00026 * without limitation the rights to use, copy, modify, merge, publish, 00027 * distribute, sublicense, and/or sell copies of the Software, and to 00028 * permit persons to whom the Software is furnished to do so, subject to 00029 * the following conditions: 00030 * 00031 * The above copyright notice and this permission notice shall be 00032 * included in all copies or substantial portions of the Software. 00033 * 00034 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00035 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00036 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00037 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00038 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00039 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00040 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00041 * 00042 */ 00043 00044 #include <gecode/set/precede.hh> 00045 00046 namespace Gecode { 00047 00048 void 00049 precede(Home home, const SetVarArgs& x, int s, int t) { 00050 using namespace Set; 00051 Limits::check(s,"Set::precede"); 00052 Limits::check(t,"Set::precede"); 00053 GECODE_POST; 00054 00055 ViewArray<SetView> y(home, x); 00056 GECODE_ES_FAIL(Precede::Single<SetView>::post(home, y, s, t)); 00057 } 00058 00059 void 00060 precede(Home home, const SetVarArgs& x, const IntArgs& c) { 00061 using namespace Set; 00062 if (c.size() < 2) 00063 return; 00064 for (int i=c.size(); i--; ) 00065 Limits::check(c[i],"Set::precede"); 00066 GECODE_POST; 00067 00068 for (int i=c.size()-1; i--; ) { 00069 ViewArray<SetView> y(home, x); 00070 GECODE_ES_FAIL(Precede::Single<SetView>::post(home, y, c[i], c[i+1])); 00071 } 00072 } 00073 00074 } 00075 00076 // STATISTICS: set-post