48 namespace Gecode {
namespace Set {
namespace Int {
71 return new (home)
MinElement(home,share,*
this);
94 assert(
x0.cardMin()>=1);
98 unsigned int size = 0;
102 int* ub = r.
alloc<
int>(size*2);
107 ub[2*i+1] = ubr.max();
110 unsigned int x0cm =
x0.cardMin()-1;
111 for (
unsigned int i=size;
i--;) {
112 unsigned int width =
static_cast<unsigned int>(ub[2*
i+1]-ub[2*
i]+1);
114 maxN =
static_cast<int>(ub[2*
i+1]-x0cm);
170 if ((
x0.cardMax() == 0) ||
172 ((
x0.glbSize() > 0) && (
x0.glbMin() <
x1.
min())))
182 if (
x0.glbMin() ==
x0.lubMin()) {
190 unsigned int oldGlbSize =
x0.glbSize();
231 int* _ur = r.
alloc<
int>(num_ranges*2);
235 _ur[2*
i ] = ur.min();
236 _ur[2*i+1] = ur.max();
240 unsigned int n =
x0.cardMin();
242 for (
int i=num_ranges; i--; ) {
244 unsigned int num_values =
static_cast<unsigned int>(_ur[2*i+1]-_ur[2*
i]+1);
246 if (num_values >= n) {
248 nth_largest =
static_cast<int>(_ur[2*i+1]-n+1);
255 if (
x1.
min() > nth_largest)
261 template<
class View, ReifyMode rm>
270 template<
class View, ReifyMode rm>
278 template<
class View, ReifyMode rm>
286 template<
class View, ReifyMode rm>
292 template<
class View, ReifyMode rm>
310 if ((
x0.cardMax() == 0) ||
312 ((
x0.glbSize() > 0) && (
x0.glbMin() <
x1.
min())))
319 if (
x0.glbMin() ==
x0.lubMin()) {
332 else if ((
x0.glbMin() <
x1.
min()) ||
422 return new (home)
MaxElement(home,share,*
this);
431 assert(
x0.cardMin()>=1);
480 if ((
x0.cardMax() == 0) ||
482 ((
x0.glbSize() > 0) && (
x0.glbMax() >
x1.
max())))
492 if (
x0.glbMax() ==
x0.lubMax()) {
500 unsigned int oldGlbSize =
x0.glbSize();
511 if (ur.
width() == 1) {
534 unsigned int n =
x0.cardMin();
537 if (ur.width() >=
n) {
539 nth_smallest =
static_cast<int>(ur.min() + n - 1);
546 if (
x1.
max() < nth_smallest)
552 template<
class View, ReifyMode rm>
561 template<
class View, ReifyMode rm>
569 template<
class View, ReifyMode rm>
578 template<
class View, ReifyMode rm>
584 template<
class View, ReifyMode rm>
602 if ((
x0.cardMax() == 0) ||
604 ((
x0.glbSize() > 0) && (
x0.glbMax() >
x1.
max())))
611 if (
x0.glbMax() ==
x0.lubMax()) {
624 else if ((
x0.glbMax() <
x1.
min()) ||
649 unsigned int n =
x0.cardMin();
655 nth_smallest =
static_cast<int>(ur.min() + n - 1);
662 if (
x1.
max() < nth_smallest) {
ModEvent inter_r(Space &home, I &i, bool depends=true)
Intersect domain with ranges described by i.
ModEvent nq(Space &home, int n)
Restrict domain values to be different from n.
int val(void) const
Return assigned value (only if assigned)
#define GECODE_REWRITE(prop, post)
Rewrite propagator by executing post function.
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for x is the minimal element of s.
bool zero(void) const
Test whether view is assigned to be zero.
Inverse implication for reification.
Range iterator for the unknown set.
const int min
Smallest allowed integer in integer set.
ExecStatus ES_SUBSUMED(Propagator &p)
View x0
View of type View0.
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
Propagator for not maximum element
T * alloc(long unsigned int n)
Allocate block of n objects of type T from region.
bool one(void) const
Test whether view is assigned to be one.
ReMinElement(Space &home, bool share, ReMinElement &p)
Constructor for cloning p.
Reified mixed binary propagator.
int max(void) const
Return largest value of range.
static const int MIN_OF_EMPTY
Returned by empty sets when asked for their minimum element.
Propagation has computed fixpoint.
const int max
Largest allowed integer in integer set.
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for x is not the minimal element of s.
Gecode::Int::IntView x1
View of type View1.
Base-class for both propagators and branchers.
Propagator for reified minimum element
static const int MAX_OF_EMPTY
Returned by empty sets when asked for their maximum element.
bool in(int n) const
Test whether n is contained in domain.
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
int p
Number of positive literals for node type.
Gecode::IntArgs i(4, 1, 2, 3, 4)
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
int n
Number of negative literals for node type.
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Propagator for not minimum element
static ExecStatus post(Home home, View s, Gecode::Int::IntView x, Gecode::Int::BoolView b)
Post reified propagator for b iff x is the minimal element of s.
ModEvent lq(Space &home, int n)
Restrict domain values to be less or equal than n.
Range iterator for computing intersection (binary)
const Gecode::PropCond PC_INT_BND
Propagate when minimum or maximum of a view changes.
View x0
View of type View0.
const Gecode::PropCond PC_INT_DOM
Propagate when domain changes.
int min(void) const
Return minimum of domain.
MaxElement(Space &home, bool share, MaxElement &p)
Constructor for cloning p.
size_t size
The size of the propagator (used during subsumption)
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for x is the largest element of s.
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
ReMaxElement(Space &home, bool share, ReMaxElement &p)
Constructor for cloning p.
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
const Gecode::PropCond PC_SET_ANY
Propagate when any bound or the cardinality of a view changes.
NotMaxElement(Space &home, bool share, NotMaxElement &p)
Constructor for cloning p.
Post propagator for SetVar SetOpType SetVar SetRelType r
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Propagator for maximum element
Integer view for integer variables.
bool assigned(void) const
Test whether view is assigned.
Reified propagator for maximum element
Gecode::Int::BoolView b
Boolean control view.
ModEvent gq(Space &home, int n)
Restrict domain values to be greater or equal than n.
MinElement(Space &home, bool share, MinElement &p)
Constructor for cloning p.
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
NotMinElement(Space &home, bool share, NotMinElement &p)
Constructor for cloning p.
Gecode toplevel namespace
int max(void) const
Return maximum of domain.
Implication for reification.
int min(void) const
Return smallest value of range.
static ExecStatus post(Home home, View s, Gecode::Int::IntView x, Gecode::Int::BoolView b)
Post reified propagator for b iff x is the largest element of s.
unsigned int width(void) const
Return width of range (distance between minimum and maximum)
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Gecode::Int::IntView x1
View of type View1.
int ModEventDelta
Modification event deltas.
Home class for posting propagators
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for x is not the largest element of s.
Propagator for minimum element
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
Boolean view for Boolean variables.