Jip J. Dekker
981be2067e
git-subtree-dir: software/gecode_on_replay git-subtree-split: 8051d92b9c89e49cccfbd1c201371580d7703ab4
86 lines
2.5 KiB
C++
86 lines
2.5 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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* Vincent Barichard <Vincent.Barichard@univ-angers.fr>
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*
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* Copyright:
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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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#ifdef GECODE_HAS_FLOAT_VARS
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namespace Gecode {
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/*
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* Operations for linear float relations
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*
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*/
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forceinline
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LinFloatRel::LinFloatRel(void) {}
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forceinline
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LinFloatRel::LinFloatRel(const LinFloatExpr& l, FloatRelType frt0, const LinFloatExpr& r)
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: e(l-r), frt(frt0) {}
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forceinline
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LinFloatRel::LinFloatRel(const LinFloatExpr& l, FloatRelType frt0, FloatVal r)
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: e(l-r), frt(frt0) {}
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forceinline
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LinFloatRel::LinFloatRel(FloatVal l, FloatRelType frt0, const LinFloatExpr& r)
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: e(l-r), frt(frt0) {}
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forceinline FloatRelType
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LinFloatRel::neg(FloatRelType frt) {
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switch (frt) {
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case FRT_EQ: return FRT_NQ;
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case FRT_NQ: return FRT_EQ;
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case FRT_LQ: return FRT_GR;
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case FRT_LE: return FRT_GQ;
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case FRT_GQ: return FRT_LE;
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case FRT_GR: return FRT_LQ;
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default: GECODE_NEVER;
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}
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return FRT_LQ;
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}
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forceinline void
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LinFloatRel::post(Home home, bool t) const {
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e.post(home,t ? frt : neg(frt));
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}
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forceinline void
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LinFloatRel::post(Home home, const BoolVar& b, bool t) const {
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e.post(home,t ? frt : neg(frt),b);
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}
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}
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#endif
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// STATISTICS: minimodel-any
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