/usr/include/gecode/int/count/view-base.hpp is in libgecode-dev 4.4.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2003
*
* Last modified:
* $Date: 2011-08-29 14:59:24 +0200 (Mon, 29 Aug 2011) $ by $Author: schulte $
* $Revision: 12359 $
*
* 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.
*
*/
namespace Gecode { namespace Int { namespace Count {
template<class VX, class VY, class VZ>
forceinline
ViewBase<VX,VY,VZ>::ViewBase(Home home,
ViewArray<VX>& x0, VY y0, VZ z0, int c0)
: Propagator(home), x(x0), y(y0), z(z0), c(c0) {
if (vtd(y) == VTD_INTSET)
home.notice(*this,AP_DISPOSE);
x.subscribe(home,*this,PC_INT_DOM);
subscribe(home,*this,y);
z.subscribe(home,*this,PC_INT_BND);
}
template<class VX, class VY, class VZ>
forceinline
ViewBase<VX,VY,VZ>::ViewBase(Space& home, bool share, ViewBase<VX,VY,VZ>& p)
: Propagator(home,share,p), c(p.c) {
x.update(home,share,p.x);
y.update(home,share,p.y);
z.update(home,share,p.z);
}
template<class VX, class VY, class VZ>
PropCost
ViewBase<VX,VY,VZ>::cost(const Space&, const ModEventDelta&) const {
return PropCost::linear(PropCost::LO,x.size()+1);
}
template<class VX, class VY, class VZ>
forceinline size_t
ViewBase<VX,VY,VZ>::dispose(Space& home) {
if (vtd(y) == VTD_INTSET)
home.ignore(*this,AP_DISPOSE);
x.cancel(home,*this,PC_INT_DOM);
cancel(home,*this,y);
z.cancel(home,*this,PC_INT_BND);
(void) Propagator::dispose(home);
return sizeof(*this);
}
template<class VX, class VY, class VZ>
forceinline void
ViewBase<VX,VY,VZ>::count(Space& home) {
int n = x.size();
for (int i=n; i--; )
switch (holds(x[i],y)) {
case RT_FALSE:
x[i].cancel(home,*this,PC_INT_DOM); x[i]=x[--n];
break;
case RT_TRUE:
x[i].cancel(home,*this,PC_INT_DOM); x[i]=x[--n];
c--;
break;
case RT_MAYBE:
break;
default:
GECODE_NEVER;
}
x.size(n);
}
template<class VX, class VY, class VZ>
forceinline int
ViewBase<VX,VY,VZ>::atleast(void) const {
return -c;
}
template<class VX, class VY, class VZ>
forceinline int
ViewBase<VX,VY,VZ>::atmost(void) const {
return x.size()-c;
}
template<class VX>
forceinline bool
shared(const IntSet&, VX) {
return false;
}
template<class VX, class VY, class VZ>
forceinline bool
ViewBase<VX,VY,VZ>::sharing(const ViewArray<VX>& x,
const VY& y, const VZ& z) {
if (shared(y,z))
return true;
for (int i = x.size(); i--; )
if (shared(x[i],z))
return true;
return false;
}
}}}
// STATISTICS: int-prop
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