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atmostOne.hpp
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Guido Tack <tack@gecode.org>
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7 * Guido Tack, 2004
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33
34namespace Gecode { namespace Set { namespace Distinct {
35
36 /*
37 * "AtMostOneIntersection" propagator
38 *
39 */
40
43 : NaryPropagator<SetView, PC_SET_ANY>(home,x), c(_c) {}
44
48
50 AtmostOne::post(Home home, ViewArray<SetView> x, unsigned int c) {
51 for (int i=x.size(); i--;) {
52 GECODE_ME_CHECK(x[i].cardMin(home, c));
53 GECODE_ME_CHECK(x[i].cardMax(home, c));
54 }
55
56 (void) new (home) AtmostOne(home,x,c);
57 return ES_OK;
58 }
59
60}}}
61
62// STATISTICS: set-prop
Home class for posting propagators
Definition core.hpp:856
NaryPropagator(Space &home, NaryPropagator &p)
friend class Space
Definition core.hpp:1068
AtmostOne(Space &home, AtmostOne &p)
Constructor for cloning p.
Definition atmostOne.hpp:46
unsigned int c
Cardinality of the sets.
Definition distinct.hh:55
static ExecStatus post(Home home, ViewArray< SetView > x, unsigned int c)
Post propagator for and .
Definition atmostOne.hpp:50
Set view for set variables
Definition view.hpp:56
View arrays.
Definition array.hpp:253
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition macros.hpp:52
Propagators for global distinctness constraints.
Definition distinct.hh:39
Finite integer sets.
Definition var-imp.hpp:137
const Gecode::PropCond PC_SET_ANY
Propagate when any bound or the cardinality of a view changes.
Definition var-type.hpp:248
Gecode toplevel namespace
ExecStatus
Definition core.hpp:472
@ ES_OK
Execution is okay.
Definition core.hpp:476
#define forceinline
Definition config.hpp:194