78 lines
2.7 KiB
C++
78 lines
2.7 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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* Contributing authors:
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* Vincent Barichard <Vincent.Barichard@univ-angers.fr>
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*
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* Copyright:
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* Christian Schulte, 2012
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* Vincent Barichard, 2012
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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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namespace Gecode { namespace Float { namespace Branch {
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forceinline
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ValCommitLqGq::ValCommitLqGq(Space& home, const ValBranch<Var>& vb)
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: ValCommit<FloatView,FloatVal>(home,vb) {}
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forceinline
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ValCommitLqGq::ValCommitLqGq(Space& home, ValCommitLqGq& vc)
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: ValCommit<FloatView,FloatVal>(home,vc) {}
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forceinline ModEvent
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ValCommitLqGq::commit(Space& home, unsigned int a, FloatView x, int,
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FloatNumBranch nl) {
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// Should we try the smaller half first?
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if ((a == 0) == nl.l) {
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if ((x.min() == nl.n) || (x.max() == nl.n))
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return x.eq(home,x.min());
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else
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return x.lq(home,nl.n);
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} else {
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if ((x.min() == nl.n) || (x.max() == nl.n))
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return x.eq(home,x.max());
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else
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return x.gq(home,nl.n);
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}
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}
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forceinline NGL*
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ValCommitLqGq::ngl(Space&, unsigned int, FloatView, FloatNumBranch) const {
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return nullptr;
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}
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forceinline void
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ValCommitLqGq::print(const Space&, unsigned int a, FloatView, int i,
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FloatNumBranch nl,
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std::ostream& o) const {
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o << "var[" << i << "] "
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<< (((a == 0) == nl.l) ? "<=" : ">=") << "(" << nl.n << ")";
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}
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}}}
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// STATISTICS: float-branch
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