bool.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, 2006 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 #include <gecode/int.hh> 00035 00036 namespace Gecode { namespace Int { 00037 00038 BoolVarImp BoolVarImp::s_one(1); 00039 BoolVarImp BoolVarImp::s_zero(0); 00040 00041 ModEvent 00042 BoolVarImp::one_none(Space& home) { 00043 assert(none()); 00044 bits() ^= (NONE ^ ONE); 00045 assert(one()); 00046 IntDelta d(0); 00047 return notify(home,ME_BOOL_VAL,d); 00048 } 00049 00050 ModEvent 00051 BoolVarImp::zero_none(Space& home) { 00052 assert(none()); 00053 bits() ^= (NONE ^ ZERO); 00054 assert(zero()); 00055 IntDelta d(1); 00056 return notify(home,ME_BOOL_VAL,d); 00057 } 00058 00059 void 00060 BoolVarImp::subscribe(Space& home, Propagator& p, PropCond, 00061 bool schedule) { 00062 // Subscription can be used with integer propagation conditions, 00063 // which must be remapped to the single Boolean propagation condition. 00064 BoolVarImpBase::subscribe(home,p,PC_BOOL_VAL,assigned(),schedule); 00065 } 00066 00067 void 00068 BoolVarImp::reschedule(Space& home, Propagator& p, PropCond) { 00069 BoolVarImpBase::reschedule(home,p,PC_BOOL_VAL,assigned()); 00070 } 00071 00072 void 00073 BoolVarImp::subscribe(Space& home, Advisor& a, bool fail) { 00074 BoolVarImpBase::subscribe(home,a,assigned(),fail); 00075 } 00076 00077 }} 00078 00079 // STATISTICS: int-var