78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2013
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <gecode/set/branch.hh>
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namespace Gecode { namespace Set { namespace Branch {
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NGL*
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IncNGL::copy(Space& home) {
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return new (home) IncNGL(home,*this);
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}
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NGL::Status
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IncNGL::status(const Space&) const {
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// Is n in the glb(x)?
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if (x.contains(n))
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return NGL::SUBSUMED;
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else
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// Is n not in the lub(x)?
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return x.notContains(n) ? NGL::FAILED : NGL::NONE;
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}
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ExecStatus
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IncNGL::prune(Space& home) {
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return me_failed(x.exclude(home,n)) ? ES_FAILED : ES_OK;
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}
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NGL*
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ExcNGL::copy(Space& home) {
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return new (home) ExcNGL(home,*this);
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}
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NGL::Status
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ExcNGL::status(const Space&) const {
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// Is n not in the lub(x)?
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if (x.notContains(n))
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return NGL::SUBSUMED;
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else
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// Is n in the lub(x)?
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return x.contains(n) ? NGL::FAILED : NGL::NONE;
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}
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ExecStatus
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ExcNGL::prune(Space& home) {
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return me_failed(x.include(home,n)) ? ES_FAILED : ES_OK;
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}
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}}}
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// STATISTICS: set-branch
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