rel-op-const-vcv.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Guido Tack <tack@gecode.org>
*
* Contributing authors:
* Gabor Szokoli <szokoli@gecode.org>
*
* Copyright:
* Guido Tack, 2004, 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
* 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/set.hh>
#include <gecode/set/rel.hh>
#include <gecode/set/rel-op.hh>
namespace Gecode {
using namespace Gecode::Set;
using namespace Gecode::Set::Rel;
using namespace Gecode::Set::RelOp;
void
rel(Home home, SetVar x, SetOpType op, const IntSet& y, SetRelType r,
SetVar z) {
Set::Limits::check(y, "Set::rel");
ConstSetView yv(home, y);
if (op==SOT_MINUS) {
switch (r) {
case SRT_EQ:
{
GlbRanges<ConstSetView> yr(yv);
RangesCompl<GlbRanges<ConstSetView> > yrc(yr);
IntSet yc(yrc);
ConstSetView cy(home, yc);
GECODE_ES_FAIL(
(Intersection<ConstSetView,
SetView,SetView>
::post(home,cy,x,z)));
}
break;
case SRT_LQ: case SRT_LE: case SRT_GQ: case SRT_GR:
{
GlbRanges<ConstSetView> yr(yv);
RangesCompl<GlbRanges<ConstSetView> > yrc(yr);
IntSet yc(yrc);
ConstSetView cy(home, yc);
SetVar tmp(home,IntSet::empty,Set::Limits::min,Set::Limits::max);
GECODE_ES_FAIL(
(Intersection<ConstSetView,
SetView,SetView>
::post(home,cy,x,tmp)));
rel(home,tmp,r,z);
}
break;
case SRT_NQ:
{
SetVar tmp(home);
GECODE_ES_FAIL(
(Distinct<SetView,SetView>
::post(home,z,tmp)));
GlbRanges<ConstSetView> yr(yv);
RangesCompl<GlbRanges<ConstSetView> > yrc(yr);
IntSet yc(yrc);
ConstSetView cy(home, yc);
GECODE_ES_FAIL(
(Intersection<ConstSetView,
SetView,SetView>
::post(home,cy,x,tmp)));
}
break;
case SRT_SUB:
{
GlbRanges<ConstSetView> yr(yv);
RangesCompl<GlbRanges<ConstSetView> > yrc(yr);
IntSet yc(yrc);
ConstSetView cy(home, yc);
GECODE_ES_FAIL(
(SuperOfInter<ConstSetView,SetView,SetView>
::post(home,cy,x,z)));
}
break;
case SRT_SUP:
{
SetVar tmp(home);
GECODE_ES_FAIL(
(Subset<SetView,SetView>::post(home,z,tmp)));
GlbRanges<ConstSetView> yr(yv);
RangesCompl<GlbRanges<ConstSetView> > yrc(yr);
IntSet yc(yrc);
ConstSetView cy(home, yc);
SetView xv(x);
GECODE_ES_FAIL(
(Intersection<ConstSetView,
SetView,SetView>
::post(home,cy,xv,tmp)));
}
break;
case SRT_DISJ:
{
SetVar tmp(home);
EmptyView emptyset;
GECODE_ES_FAIL((SuperOfInter<SetView,SetView,EmptyView>
::post(home, z, tmp, emptyset)));
GlbRanges<ConstSetView> yr(yv);
RangesCompl<GlbRanges<ConstSetView> > yrc(yr);
IntSet yc(yrc);
ConstSetView cy(home, yc);
GECODE_ES_FAIL(
(Intersection<ConstSetView,
SetView,SetView>
::post(home,cy,x,tmp)));
}
break;
case SRT_CMPL:
{
SetView xv(x);
ComplementView<SetView> cx(xv);
GECODE_ES_FAIL(
(Union<ConstSetView,
ComplementView<SetView>,
SetView>::post(home, yv, cx, z)));
}
break;
default:
throw UnknownRelation("Set::rel");
}
} else {
rel(home, y, op, x, r, z);
}
}
}
// STATISTICS: set-post
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::IntSet
Integer sets.
Definition int.hh:174
Gecode::IntSet::empty
static const IntSet empty
Empty set.
Definition int.hh:283
Gecode::Int::UnknownRelation
Exception: Unknown relation passed as argument
Definition exception.hpp:87
Gecode::SetVar
Set variables
Definition set.hh:127
Gecode::Set::ComplementView
Complement set view.
Definition view.hpp:769
Gecode::Set::ConstSetView
Constant view.
Definition view.hpp:186
Gecode::Set::EmptyView
Constant view for the empty set.
Definition view.hpp:336
Gecode::Set::GlbRanges
Range iterator for the greatest lower bound.
Definition var-imp.hpp:359
Gecode::Set::RangesCompl
A complement iterator spezialized for the BndSet limits.
Definition var-imp.hpp:293
Gecode::Set::RelOp::Intersection
Propagator for ternary intersection
Definition rel-op.hh:124
Gecode::Set::RelOp::SuperOfInter
Propagator for the superset of intersection
Definition rel-op.hh:63
Gecode::Set::RelOp::Union
Propagator for ternary union
Definition rel-op.hh:154
Gecode::Set::Rel::Subset::post
static ExecStatus post(Home home, View0 x, View1 y)
Post propagator .
Definition subset.hpp:55
Gecode::Set::SetView
Set view for set variables
Definition view.hpp:56
set.hh
GECODE_ES_FAIL
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition macros.hpp:103
Gecode::rel
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVar x1)
Post propagator for .
Definition rel.cpp:68
Gecode::SetOpType
SetOpType
Common operations for sets.
Definition set.hh:660
Gecode::SetRelType
SetRelType
Common relation types for sets.
Definition set.hh:643
Gecode::SOT_MINUS
@ SOT_MINUS
Difference.
Definition set.hh:664
Gecode::SRT_GQ
@ SRT_GQ
Greater or equal ( ).
Definition set.hh:652
Gecode::SRT_CMPL
@ SRT_CMPL
Complement.
Definition set.hh:649
Gecode::SRT_GR
@ SRT_GR
Greater ( ).
Definition set.hh:653
Gecode::SRT_LQ
@ SRT_LQ
Less or equal ( ).
Definition set.hh:650
Gecode::SRT_NQ
@ SRT_NQ
Disequality ( ).
Definition set.hh:645
Gecode::SRT_LE
@ SRT_LE
Less ( ).
Definition set.hh:651
Gecode::SRT_EQ
@ SRT_EQ
Equality ( ).
Definition set.hh:644
Gecode::SRT_SUP
@ SRT_SUP
Superset ( ).
Definition set.hh:647
Gecode::SRT_DISJ
@ SRT_DISJ
Disjoint ( ).
Definition set.hh:648
Gecode::SRT_SUB
@ SRT_SUB
Subset ( ).
Definition set.hh:646
Gecode::Int::Distinct
Distinct propagators
Gecode::Set::Limits::check
void check(int n, const char *l)
Check whether integer n is in range, otherwise throw overflow exception with information l.
Definition limits.hpp:37
Gecode::Set::Limits::min
const int min
Smallest allowed integer in integer set.
Definition set.hh:99
Gecode::Set::Limits::max
const int max
Largest allowed integer in integer set.
Definition set.hh:97
Gecode
Gecode toplevel namespace
Gecode::post
TFE post(PropagatorGroup g)
Only post functions (but not propagators) from g are considered.
Definition filter.cpp:138
rel-op.hh
rel.hh