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gecode
int
distinct
ter-dom.hpp
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/* -*- 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, 2003
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*
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* Last modified:
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* $Date: 2010-03-03 17:32:21 +0100 (Wed, 03 Mar 2010) $ by $Author: schulte $
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* $Revision: 10364 $
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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
Int {
namespace
Distinct {
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/*
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* Ternary domain consistent distinct
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*
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*/
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template
<
class
View>
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forceinline
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TerDom<View>::TerDom
(
Home
home, View x0, View x1, View x2)
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:
TernaryPropagator
<View,
PC_INT_DOM
>(home,x0,x1,x2) {}
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template
<
class
View>
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ExecStatus
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TerDom<View>::post
(
Home
home, View x0, View x1, View x2) {
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(void)
new
(home)
TerDom<View>
(home,x0,x1,x2);
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return
ES_OK
;
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}
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template
<
class
View>
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forceinline
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TerDom<View>::TerDom
(
Space
& home,
bool
share,
TerDom<View>
&
p
)
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:
TernaryPropagator
<View,
PC_INT_DOM
>(home,share,
p
) {}
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template
<
class
View>
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Actor
*
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TerDom<View>::copy
(
Space
& home,
bool
share) {
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return
new
(home)
TerDom<View>
(home,share,*
this
);
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}
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#define GECODE_INT_HALL_ONE(x0,x1,x2) \
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if (x0.assigned()) { \
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GECODE_ME_CHECK(x1.nq(home,x0.val())); \
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GECODE_ME_CHECK(x2.nq(home,x0.val())); \
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if (x1.assigned()) { \
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GECODE_ME_CHECK(x2.nq(home,x1.val())); \
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return home.ES_SUBSUMED(*this); \
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} \
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if (x2.assigned()) { \
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GECODE_ME_CHECK(x1.nq(home,x2.val())); \
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return home.ES_SUBSUMED(*this); \
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} \
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return ES_FIX; \
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}
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#define GECODE_INT_HALL_TWO(x0,x1,x2) \
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if ((x0.size() == 2) && (x1.size() == 2) && \
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(x0.min() == x1.min()) && (x0.max() == x1.max())) { \
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GECODE_ME_CHECK(x2.nq(home,x0.min())); \
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GECODE_ME_CHECK(x2.nq(home,x0.max())); \
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return ES_FIX; \
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}
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template
<
class
View>
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ExecStatus
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TerDom<View>::propagate
(
Space
& home,
const
ModEventDelta
&) {
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GECODE_INT_HALL_ONE
(x0,x1,x2);
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GECODE_INT_HALL_ONE
(x1,x0,x2);
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GECODE_INT_HALL_ONE
(x2,x0,x1);
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GECODE_INT_HALL_TWO
(x0,x1,x2);
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GECODE_INT_HALL_TWO
(x0,x2,x1);
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GECODE_INT_HALL_TWO
(x1,x2,x0);
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return
ES_FIX
;
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}
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#undef GECODE_INT_HALL_ONE
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#undef GECODE_INT_HALL_TWO
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}}}
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// STATISTICS: int-prop
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forceinline
#define forceinline
Definition:
config.hpp:173
Gecode::Int::Distinct::TerDom::post
static ExecStatus post(Home home, View x0, View x1, View x2)
Post propagator for views x.
Definition:
ter-dom.hpp:53
Gecode::Int::Distinct::TerDom::TerDom
TerDom(Space &home, bool share, TerDom< View > &p)
Constructor for cloning p.
Definition:
ter-dom.hpp:60
Gecode::Space
Computation spaces.
Definition:
core.hpp:1748
Gecode::Actor
Base-class for both propagators and branchers.
Definition:
core.hpp:696
Gecode
Gecode toplevel namespace
Gecode::Int::Distinct::TerDom::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition:
ter-dom.hpp:97
Gecode::Int::Distinct::TerDom
Ternary domain consistent distinct propagator.
Definition:
distinct.hh:285
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:922
Gecode::TernaryPropagator
Ternary propagator.
Definition:
propagator.hpp:119
Gecode::Int::Distinct::TerDom::copy
virtual Actor * copy(Space &home, bool share)
Copy propagator during cloning.
Definition:
ter-dom.hpp:65
GECODE_INT_HALL_TWO
#define GECODE_INT_HALL_TWO(x0, x1, x2)
Check whether x0 and x1 form a Hall set of cardinality two.
Definition:
ter-dom.hpp:87
GECODE_INT_HALL_ONE
#define GECODE_INT_HALL_ONE(x0, x1, x2)
Check whether x0 forms a Hall set of cardinality one.
Definition:
ter-dom.hpp:70
Gecode::ES_FIX
@ ES_FIX
Propagation has computed fixpoint.
Definition:
core.hpp:545
Gecode::Int::PC_INT_DOM
const Gecode::PropCond PC_INT_DOM
Propagate when domain changes.
Definition:
var-type.hpp:100
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition:
core.hpp:169
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition:
core.hpp:544
p
int p
Number of positive literals for node type.
Definition:
bool-expr.cpp:236
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:540