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1.8.1.1
gecode
int
count
view-base.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: 2011-08-29 22:59:24 +1000 (Mon, 29 Aug 2011) $ by $Author: schulte $
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* $Revision: 12359 $
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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
Count {
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template
<
class
VX,
class
VY,
class
VZ>
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forceinline
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ViewBase<VX,VY,VZ>::ViewBase
(
Home
home,
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ViewArray<VX>
& x0, VY y0, VZ z0,
int
c0)
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:
Propagator
(home), x(x0), y(y0), z(z0),
c
(c0) {
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if
(
vtd
(
y
) ==
VTD_INTSET
)
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home.
notice
(*
this
,
AP_DISPOSE
);
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x
.
subscribe
(home,*
this
,
PC_INT_DOM
);
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subscribe
(home,*
this
,
y
);
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z
.subscribe(home,*
this
,
PC_INT_BND
);
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}
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template
<
class
VX,
class
VY,
class
VZ>
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forceinline
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ViewBase<VX,VY,VZ>::ViewBase
(
Space
& home,
bool
share,
ViewBase<VX,VY,VZ>
& p)
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:
Propagator
(home,share,p),
c
(p.
c
) {
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x
.
update
(home,share,p.
x
);
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y
.update(home,share,p.
y
);
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z
.update(home,share,p.
z
);
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}
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template
<
class
VX,
class
VY,
class
VZ>
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PropCost
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ViewBase<VX,VY,VZ>::cost
(
const
Space
&,
const
ModEventDelta
&)
const
{
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return
PropCost::linear
(
PropCost::LO
,x.size()+1);
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}
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template
<
class
VX,
class
VY,
class
VZ>
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forceinline
size_t
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ViewBase<VX,VY,VZ>::dispose
(
Space
& home) {
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if
(
vtd
(y) ==
VTD_INTSET
)
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home.
ignore
(*
this
,
AP_DISPOSE
);
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x.cancel(home,*
this
,
PC_INT_DOM
);
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cancel
(home,*
this
,y);
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z.cancel(home,*
this
,
PC_INT_BND
);
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(void)
Propagator::dispose
(home);
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return
sizeof
(*this);
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}
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template
<
class
VX,
class
VY,
class
VZ>
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forceinline
void
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ViewBase<VX,VY,VZ>::count
(
Space
& home) {
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int
n = x.size();
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for
(
int
i
=n;
i
--; )
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switch
(
holds
(x[
i
],y)) {
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case
RT_FALSE
:
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x[
i
].cancel(home,*
this
,
PC_INT_DOM
); x[
i
]=x[--n];
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break
;
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case
RT_TRUE
:
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x[
i
].cancel(home,*
this
,
PC_INT_DOM
); x[
i
]=x[--n];
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c
--;
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break
;
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case
RT_MAYBE
:
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break
;
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default
:
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GECODE_NEVER
;
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}
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x.size(n);
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}
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template
<
class
VX,
class
VY,
class
VZ>
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forceinline
int
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ViewBase<VX,VY,VZ>::atleast
(
void
)
const
{
103
return
-
c
;
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}
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template
<
class
VX,
class
VY,
class
VZ>
107
forceinline
int
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ViewBase<VX,VY,VZ>::atmost
(
void
)
const
{
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return
x.size()-
c
;
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}
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template
<
class
VX>
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forceinline
bool
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shared
(
const
IntSet
&, VX) {
115
return
false
;
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}
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template
<
class
VX,
class
VY,
class
VZ>
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forceinline
bool
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ViewBase<VX,VY,VZ>::sharing
(
const
ViewArray<VX>
& x,
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const
VY& y,
const
VZ& z) {
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if
(
shared
(y,z))
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return
true
;
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for
(
int
i
= x.
size
();
i
--; )
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if
(
shared
(x[
i
],z))
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return
true
;
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return
false
;
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}
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}}}
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// STATISTICS: int-prop