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Propagator for counting views (less or equal to number of equal views) More...

#include <count.hh>

Public Member Functions

 LqView (Home home, ViewArray< VX > &x, VY y, VZ z, int c)
 Constructor for creation.
virtual Actorcopy (Space &home)
 Create copy during cloning.
virtual ExecStatus propagate (Space &home, const ModEventDelta &med)
 Perform propagation.
Public Member Functions inherited from Gecode::Int::Count::ViewBase< VX, VY, VZ >
virtual size_t dispose (Space &home)
 Delete propagator and return its size.
virtual PropCost cost (const Space &home, const ModEventDelta &med) const
 Cost function (defined as low linear)
virtual void reschedule (Space &home)
 Schedule function.
ModEventDelta modeventdelta (void) const
 Return the modification event delta.
virtual ExecStatus advise (Space &home, Advisor &a, const Delta &d)
 Advise function.
virtual void advise (Space &home, Advisor &a)
 Run advisor a to be run on failure in failed space.
double afc (void) const
 Return the accumlated failure count.
unsigned int id (void) const
 Return propagator id.
PropagatorGroup group (void) const
 Return group propagator belongs to.
void group (PropagatorGroup g)
 Add propagator to group g.
bool disabled (void) const
 Whether propagator is currently disabled.
virtual ~Actor (void)
 To avoid warnings.

Static Public Member Functions

static ExecStatus post (Home home, ViewArray< VX > &x, VY y, VZ z, int c)
 Post propagator for $\#\{i\in\{0,\ldots,|x|-1\}\;|\;x_i=y\}\leq z+c$.
static void * operator new (size_t s, Space &home)
 Allocate memory from space.
static void operator delete (void *p, Space &home)
 No-op for exceptions.
static void * operator new (size_t s)
 Not used.
static void operator delete (void *p)
 Not used.

Protected Member Functions

 LqView (Space &home, LqView &p)
 Constructor for cloning p.
Protected Member Functions inherited from Gecode::Int::Count::ViewBase< VX, VY, VZ >
 ViewBase (Space &home, ViewBase &p)
 Constructor for cloning p.
 ViewBase (Home home, ViewArray< VX > &x, VY y, VZ z, int c)
 Constructor for creation.
void count (Space &home)
 Count how many views are equal now.
int atleast (void) const
 How many views are at least equal.
int atmost (void) const
 How many views are at most equal.
Protected Member Functions inherited from Gecode::Propagator
 Propagator (Home home)
 Constructor for posting.
 Propagator (Space &home, Propagator &p)
 Constructor for cloning p.
Propagatorfwd (void) const
 Return forwarding pointer during copying.
Kernel::GPI::Infogpi (void)
 Provide access to global propagator information.

Additional Inherited Members

Static Protected Member Functions inherited from Gecode::Int::Count::ViewBase< VX, VY, VZ >
static bool sharing (const ViewArray< VX > &x, const VY &y, const VZ &z)
 Test whether there is sharing of z with x or y.
Protected Attributes inherited from Gecode::Int::Count::ViewBase< VX, VY, VZ >
ViewArray< VX > x
 Views still to count.
VY y
 View to compare to.
VZ z
 View which yields result of counting.
int c
 Number of views which are equal and have been eliminated.

Detailed Description

template<class VX, class VY, class VZ, bool shr>
class Gecode::Int::Count::LqView< VX, VY, VZ, shr >

Propagator for counting views (less or equal to number of equal views)

Not all combinations of views are possible. The types VX and VY must be either equal, or VY must be ConstIntView, ZeroIntView, or IntSet.

Requires

Definition at line 344 of file count.hh.

Constructor & Destructor Documentation

◆ LqView() [1/2]

template<class VX, class VY, class VZ, bool shr>
Gecode::Int::Count::LqView< VX, VY, VZ, shr >::LqView ( Space & home,
LqView< VX, VY, VZ, shr > & p )
inlineprotected

Constructor for cloning p.

Definition at line 58 of file view-lq.hpp.

◆ LqView() [2/2]

template<class VX, class VY, class VZ, bool shr>
Gecode::Int::Count::LqView< VX, VY, VZ, shr >::LqView ( Home home,
ViewArray< VX > & x,
VY y,
VZ z,
int c )
inline

Constructor for creation.

Definition at line 38 of file view-lq.hpp.

Member Function Documentation

◆ copy()

template<class VX, class VY, class VZ, bool shr>
Actor * Gecode::Int::Count::LqView< VX, VY, VZ, shr >::copy ( Space & home)
virtual

Create copy during cloning.

Implements Gecode::Actor.

Definition at line 63 of file view-lq.hpp.

◆ propagate()

template<class VX, class VY, class VZ, bool shr>
ExecStatus Gecode::Int::Count::LqView< VX, VY, VZ, shr >::propagate ( Space & home,
const ModEventDelta & med )
virtual

Perform propagation.

Implements Gecode::Propagator.

Definition at line 69 of file view-lq.hpp.

◆ post()

template<class VX, class VY, class VZ, bool shr>
ExecStatus Gecode::Int::Count::LqView< VX, VY, VZ, shr >::post ( Home home,
ViewArray< VX > & x,
VY y,
VZ z,
int c )
static

Post propagator for $\#\{i\in\{0,\ldots,|x|-1\}\;|\;x_i=y\}\leq z+c$.

Definition at line 44 of file view-lq.hpp.


The documentation for this class was generated from the following files: