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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * * Copyright: * Christian Schulte, 2009 * * This file is part of Gecode, the generic constraint * development environment: * http://www.gecode.org * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */
#include <gecode/int/rel.hh>
namespace Gecode { namespace Int { namespace Element {
forceinline Pair::Pair(Home home, IntView x0, IntView x1, IntView x2, int w0) : TernaryPropagator<IntView,PC_INT_DOM>(home,x0,x1,x2), w(w0) {}
inline ExecStatus Pair::post(Home home, IntView x0, IntView x1, IntView x2, int w, int h) { GECODE_ME_CHECK(x0.gq(home,0)); GECODE_ME_CHECK(x0.le(home,w)); GECODE_ME_CHECK(x1.gq(home,0)); GECODE_ME_CHECK(x1.le(home,h)); GECODE_ME_CHECK(x2.gq(home,0)); GECODE_ME_CHECK(x2.le(home,w*h)); if (x0.assigned() && x1.assigned()) { GECODE_ME_CHECK(x2.eq(home,x0.val()+w*x1.val())); } else if (x1.assigned()) { OffsetView x0x1w(x0,x1.val()*w); return Rel::EqDom<OffsetView,IntView>::post(home,x0x1w,x2); } else if (x2.assigned()) { GECODE_ME_CHECK(x0.eq(home,x2.val() % w)); GECODE_ME_CHECK(x1.eq(home,static_cast<int>(x2.val() / w))); } else { assert(!shared(x0,x2) && !shared(x1,x2)); (void) new (home) Pair(home,x0,x1,x2,w); } return ES_OK; }
forceinline Pair::Pair(Space& home, Pair& p) : TernaryPropagator<IntView,PC_INT_DOM>(home,p), w(p.w) {}
forceinline PairWithOffsets::PairWithOffsets(Home home, OffsetView x0, OffsetView x1, IntView x2, int w0) : TernaryPropagator<OffsetView,PC_INT_DOM>(home,x0,x1,OffsetView(x2,0)), w(w0) {}
inline ExecStatus PairWithOffsets::post(Home home, OffsetView x0, OffsetView x1, IntView x2, int w, int h) { GECODE_ME_CHECK(x0.gq(home,0)); GECODE_ME_CHECK(x0.le(home,w)); GECODE_ME_CHECK(x1.gq(home,0)); GECODE_ME_CHECK(x1.le(home,h)); GECODE_ME_CHECK(x2.gq(home,0)); GECODE_ME_CHECK(x2.le(home,w*h)); if (x0.assigned() && x1.assigned()) { GECODE_ME_CHECK(x2.eq(home,x0.val()+w*x1.val())); } else if (x1.assigned()) { OffsetView x0x1w(x0.base(),x0.offset()+x1.val()*w); return Rel::EqDom<OffsetView,IntView>::post(home,x0x1w,x2); } else if (x2.assigned()) { GECODE_ME_CHECK(x0.eq(home,x2.val() % w)); GECODE_ME_CHECK(x1.eq(home,static_cast<int>(x2.val() / w))); } else { assert(!shared(x0,x2) && !shared(x1,x2)); (void) new (home) PairWithOffsets(home,x0,x1,x2,w); } return ES_OK; }
forceinline PairWithOffsets::PairWithOffsets(Space& home, PairWithOffsets& p) : TernaryPropagator<OffsetView,PC_INT_DOM>(home,p), w(p.w) {}
}}}
// STATISTICS: int-prop