int-rel.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2005
*
* 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
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* 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
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*/
namespace Gecode {
/*
* Operations for linear expressions
*
*/
forceinline
LinIntRel::LinIntRel(void) {}
forceinline
LinIntRel::LinIntRel(const LinIntExpr& l, IntRelType irt0, const LinIntExpr& r)
: e(l-r), irt(irt0) {}
forceinline
LinIntRel::LinIntRel(const LinIntExpr& l, IntRelType irt0, int r)
: e(l-r), irt(irt0) {}
forceinline
LinIntRel::LinIntRel(int l, IntRelType irt0, const LinIntExpr& r)
: e(l-r), irt(irt0) {}
forceinline IntRelType
LinIntRel::neg(IntRelType irt) {
switch (irt) {
case IRT_EQ: return IRT_NQ;
case IRT_NQ: return IRT_EQ;
case IRT_LQ: return IRT_GR;
case IRT_LE: return IRT_GQ;
case IRT_GQ: return IRT_LE;
case IRT_GR: return IRT_LQ;
default: GECODE_NEVER;
}
return IRT_LQ;
}
forceinline void
LinIntRel::post(Home home, bool t,
const IntPropLevels& ipls) const {
e.post(home,t ? irt : neg(irt),ipls);
}
forceinline void
LinIntRel::post(Home home, const BoolVar& b, bool t,
const IntPropLevels& ipls) const {
e.post(home,t ? irt : neg(irt),b,ipls);
}
}
// STATISTICS: minimodel-any
Gecode::BoolVar
Boolean integer variables.
Definition int.hh:512
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::IntPropLevels
Class for specifying integer propagation levels used by minimodel.
Definition minimodel.hh:101
Gecode::LinIntExpr
Linear expressions over integer variables.
Definition minimodel.hh:245
Gecode::LinIntRel::post
void post(Home home, bool t, const IntPropLevels &ipls) const
Post propagator for relation (if t is false for negated relation).
Definition int-rel.hpp:70
Gecode::IntRelType
IntRelType
Relation types for integers.
Definition int.hh:925
Gecode::IRT_EQ
@ IRT_EQ
Equality ( ).
Definition int.hh:926
Gecode::IRT_NQ
@ IRT_NQ
Disequality ( ).
Definition int.hh:927
Gecode::IRT_GQ
@ IRT_GQ
Greater or equal ( ).
Definition int.hh:930
Gecode::IRT_LE
@ IRT_LE
Less ( ).
Definition int.hh:929
Gecode::IRT_GR
@ IRT_GR
Greater ( ).
Definition int.hh:931
Gecode::IRT_LQ
@ IRT_LQ
Less or equal ( ).
Definition int.hh:928
Gecode
Gecode toplevel namespace
forceinline
#define forceinline
Definition config.hpp:187
GECODE_NEVER
#define GECODE_NEVER
Assert that this command is never executed.
Definition macros.hpp:56