cardinality.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Gabor Szokoli <szokoli@gecode.org>
* Guido Tack <tack@gecode.org>
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Gabor Szokoli, 2004
* Guido Tack, 2004
* Christian Schulte, 2004
*
* 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
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#include <gecode/set.hh>
#include <gecode/set/int.hh>
namespace Gecode {
void
cardinality(Home home, SetVar x, unsigned int i, unsigned int j) {
Set::Limits::check(i, "Set::cardinality");
Set::Limits::check(j, "Set::cardinality");
GECODE_POST;
Set::SetView _x(x);
GECODE_ME_FAIL(_x.cardMin(home, i));
GECODE_ME_FAIL(_x.cardMax(home, j));
}
void
cardinality(Home home, const SetVarArgs& x, unsigned int i, unsigned int j) {
Set::Limits::check(i, "Set::cardinality");
Set::Limits::check(j, "Set::cardinality");
GECODE_POST;
for (int k=x.size(); k--; ) {
Set::SetView _x(x[k]);
GECODE_ME_FAIL(_x.cardMin(home, i));
GECODE_ME_FAIL(_x.cardMax(home, j));
}
}
void
cardinality(Home home, SetVar s, IntVar x) {
GECODE_POST;
GECODE_ES_FAIL(Set::Int::Card<Set::SetView>::post(home,s, x));
}
void
cardinality(Home home, SetVar s, IntVar x, Reify r) {
IntVar y(home, 0, static_cast<int>(Set::Limits::card));
rel(home, x, IRT_EQ, y, r);
cardinality(home, s, y);
}
}
// STATISTICS: set-post
Gecode::ArgArrayBase::size
int size(void) const
Return size of array (number of elements).
Definition array.hpp:1607
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::IntVar
Integer variables.
Definition int.hh:371
Gecode::Reify
Reification specification.
Definition int.hh:876
Gecode::SetVarArgs
Passing set variables.
Definition set.hh:488
Gecode::SetVar
Set variables
Definition set.hh:127
Gecode::Set::Int::Card::post
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for .
Definition card.hpp:51
Gecode::Set::SetView
Set view for set variables
Definition view.hpp:56
Gecode::Set::SetView::cardMin
unsigned int cardMin(void) const
Return minimum cardinality.
Definition set.hpp:82
Gecode::Set::SetView::cardMax
unsigned int cardMax(void) const
Return maximum cardinality.
Definition set.hpp:86
int.hh
set.hh
GECODE_POST
#define GECODE_POST
Check for failure in a constraint post function.
Definition macros.hpp:40
GECODE_ES_FAIL
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition macros.hpp:103
GECODE_ME_FAIL
#define GECODE_ME_FAIL(me)
Check whether modification event me is failed, and fail space home.
Definition macros.hpp:77
Gecode::rel
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVar x1)
Post propagator for .
Definition rel.cpp:68
Gecode::IRT_EQ
@ IRT_EQ
Equality ( ).
Definition int.hh:926
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::card
const unsigned int card
Maximum cardinality of an integer set.
Definition set.hh:101
Gecode
Gecode toplevel namespace
Gecode::cardinality
LinIntExpr cardinality(const SetExpr &)
Cardinality of set expression.
Definition set-expr.cpp:817