/usr/include/gecode/int/view/scale.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, 2002
*
* Last modified:
* $Date: 2013-02-14 16:29:11 +0100 (Thu, 14 Feb 2013) $ by $Author: schulte $
* $Revision: 13292 $
*
* 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.
*
*/
#include <gecode/int/div.hh>
namespace Gecode { namespace Int {
/*
* Constructors and initialization
*
*/
template<class Val, class UnsVal>
forceinline
ScaleView<Val,UnsVal>::ScaleView(void) {}
template<class Val, class UnsVal>
forceinline
ScaleView<Val,UnsVal>::ScaleView(int b, const IntView& y)
: DerivedView<IntView>(y), a(b) {}
/*
* Value access
*
*/
template<class Val, class UnsVal>
forceinline int
ScaleView<Val,UnsVal>::scale(void) const {
return a;
}
template<class Val, class UnsVal>
forceinline Val
ScaleView<Val,UnsVal>::min(void) const {
return static_cast<Val>(x.min()) * a;
}
template<class Val, class UnsVal>
forceinline Val
ScaleView<Val,UnsVal>::max(void) const {
return static_cast<Val>(x.max()) * a;
}
template<class Val, class UnsVal>
forceinline Val
ScaleView<Val,UnsVal>::med(void) const {
return static_cast<Val>(x.med()) * a;
}
template<class Val, class UnsVal>
forceinline Val
ScaleView<Val,UnsVal>::val(void) const {
return static_cast<Val>(x.val()) * a;
}
template<class Val, class UnsVal>
forceinline UnsVal
ScaleView<Val,UnsVal>::size(void) const {
return static_cast<UnsVal>(x.size());
}
template<class Val, class UnsVal>
forceinline UnsVal
ScaleView<Val,UnsVal>::width(void) const {
return static_cast<UnsVal>(x.width()) * a;
}
template<class Val, class UnsVal>
forceinline UnsVal
ScaleView<Val,UnsVal>::regret_min(void) const {
return static_cast<UnsVal>(x.regret_min()) * a;
}
template<class Val, class UnsVal>
forceinline UnsVal
ScaleView<Val,UnsVal>::regret_max(void) const {
return static_cast<UnsVal>(x.regret_max()) * a;
}
/*
* Domain tests
*
*/
template<class Val, class UnsVal>
forceinline bool
ScaleView<Val,UnsVal>::range(void) const {
return x.range();
}
template<class Val, class UnsVal>
forceinline bool
ScaleView<Val,UnsVal>::in(Val n) const {
return ((n % a) == 0) && x.in(n / a);
}
/*
* Domain update by value
*
*/
template<class Val, class UnsVal>
forceinline ModEvent
ScaleView<Val,UnsVal>::lq(Space& home, Val n) {
return (n >= max()) ? ME_INT_NONE :
x.lq(home,floor_div_xp(n,static_cast<Val>(a)));
}
template<class Val, class UnsVal>
forceinline ModEvent
ScaleView<Val,UnsVal>::le(Space& home, Val n) {
return (n > max()) ? ME_INT_NONE :
x.le(home,floor_div_xp(n,static_cast<Val>(a)));
}
template<class Val, class UnsVal>
forceinline ModEvent
ScaleView<Val,UnsVal>::gq(Space& home, Val n) {
return (n <= min()) ? ME_INT_NONE :
x.gq(home,ceil_div_xp(n,static_cast<Val>(a)));
}
template<class Val, class UnsVal>
forceinline ModEvent
ScaleView<Val,UnsVal>::gr(Space& home, Val n) {
return (n < min()) ? ME_INT_NONE :
x.gr(home,ceil_div_xp(n,static_cast<Val>(a)));
}
template<class Val, class UnsVal>
forceinline ModEvent
ScaleView<Val,UnsVal>::nq(Space& home, Val n) {
return ((n % a) == 0) ? x.nq(home,n/a) : ME_INT_NONE;
}
template<class Val, class UnsVal>
forceinline ModEvent
ScaleView<Val,UnsVal>::eq(Space& home, Val n) {
return ((n % a) == 0) ? x.eq(home,n/a) : ME_INT_FAILED;
}
/*
* Propagator modification events
*
*/
template<class Val, class UnsVal>
forceinline ModEventDelta
ScaleView<Val,UnsVal>::med(ModEvent me) {
return IntView::med(me);
}
/*
* Delta information for advisors
*
*/
template<class Val, class UnsVal>
forceinline Val
ScaleView<Val,UnsVal>::min(const Delta& d) const {
return static_cast<Val>(x.min(d)) * a;
}
template<class Val, class UnsVal>
forceinline Val
ScaleView<Val,UnsVal>::max(const Delta& d) const {
return static_cast<Val>(x.max(d)) * a;
}
template<class Val, class UnsVal>
forceinline bool
ScaleView<Val,UnsVal>::any(const Delta& d) const {
return x.any(d);
}
/*
* Cloning
*
*/
template<class Val, class UnsVal>
forceinline void
ScaleView<Val,UnsVal>::update(Space& home, bool share,
ScaleView<Val,UnsVal>& y) {
DerivedView<IntView>::update(home,share,y);
a=y.a;
}
/**
* \brief %Range iterator for integer-precision scale integer views
* \ingroup TaskActorIntView
*/
template<>
class ViewRanges<IntScaleView>
: public Iter::Ranges::ScaleUp<int,unsigned int,ViewRanges<IntView> > {
public:
/// \name Constructors and initialization
//@{
/// Default constructor
ViewRanges(void);
/// Initialize with ranges for view \a x
ViewRanges(const IntScaleView& x);
/// Initialize with ranges for view \a x
void init(const IntScaleView& x);
//@}
};
forceinline
ViewRanges<IntScaleView>::ViewRanges(void) {}
forceinline
ViewRanges<IntScaleView>::ViewRanges(const IntScaleView& x) {
ViewRanges<IntView> xi(x.base());
Iter::Ranges::ScaleUp<int,unsigned int,ViewRanges<IntView> >::init
(xi,x.scale());
}
forceinline void
ViewRanges<IntScaleView>::init(const IntScaleView& x) {
ViewRanges<IntView> xi(x.base());
Iter::Ranges::ScaleUp<int,unsigned int,ViewRanges<IntView> >::init
(xi,x.scale());
}
/**
* \brief %Range iterator for long long int-precision scale integer views
* \ingroup TaskActorIntView
*/
template<>
class ViewRanges<LLongScaleView>
: public Iter::Ranges::ScaleUp<long long int,unsigned long long int,
ViewRanges<IntView> > {
public:
/// \name Constructors and initialization
//@{
/// Default constructor
ViewRanges(void);
/// Initialize with ranges for view \a x
ViewRanges(const LLongScaleView& x);
/// Initialize with ranges for view \a x
void init(const LLongScaleView& x);
//@}
};
forceinline
ViewRanges<LLongScaleView>::ViewRanges(void) {}
forceinline
ViewRanges<LLongScaleView>::ViewRanges(const LLongScaleView& x) {
ViewRanges<IntView> xi(x.base());
Iter::Ranges::ScaleUp<long long int,unsigned long long int,
ViewRanges<IntView> >::init(xi,x.scale());
}
forceinline void
ViewRanges<LLongScaleView>::init(const LLongScaleView& x) {
ViewRanges<IntView> xi(x.base());
Iter::Ranges::ScaleUp<long long int,unsigned long long int,
ViewRanges<IntView> >::init(xi,x.scale());
}
/*
* View comparison
*
*/
template<class Val, class UnsVal>
forceinline bool
same(const ScaleView<Val,UnsVal>& x, const ScaleView<Val,UnsVal>& y) {
return same(x.base(),y.base()) && (x.scale() == y.scale());
}
template<class Val, class UnsVal>
forceinline bool
before(const ScaleView<Val,UnsVal>& x, const ScaleView<Val,UnsVal>& y) {
return before(x.base(),y.base())
|| (same(x.base(),y.base()) && (x.scale() < y.scale()));
}
}}
// STATISTICS: int-var
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