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eqite.hpp
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33 
34 #include <algorithm>
35 
36 namespace Gecode { namespace Int { namespace Distinct {
37 
39  EqIte::EqIte(Home home, IntView x0, IntView x1, int d0, int d1)
40  : BinaryPropagator<IntView,PC_INT_DOM>(home,x0,x1), c0(d0), c1(d1) {}
41 
45  c0(p.c0), c1(p.c1) {}
46 
47 
48  inline ExecStatus
49  EqIte::post(Home home, IntView x0, IntView x1, int c0, int c1) {
50  assert(!(x0.assigned() && (x0.val() == c0)) && x0.in(c0));
51  GECODE_ME_CHECK(x1.lq(home,std::max(x0.max(),c1)));
52  GECODE_ME_CHECK(x1.gq(home,std::min(x0.min(),c1)));
53  (void) new (home) EqIte(home,x0,x1,c0,c1);
54  return ES_OK;
55  }
56 
57 }}}
58 
59 // STATISTICS: int-prop
bool assigned(void) const
Test whether view is assigned.
Definition: view.hpp:516
int c1
Definition: distinct.hh:354
int min(void) const
Return minimum of domain.
Definition: int.hpp:58
EqIte(Space &home, EqIte &p)
Constructor for cloning p.
Definition: eqite.hpp:43
const FloatNum min
Smallest allowed float value.
Definition: float.hh:846
Computation spaces.
Definition: core.hpp:1742
static ExecStatus post(Home home, IntView x0, IntView x1, int c0, int c1)
Post if-then-else propagator.
Definition: eqite.hpp:49
Gecode toplevel namespace
int max(void) const
Return maximum of domain.
Definition: int.hpp:62
int val(void) const
Return assigned value (only if assigned)
Definition: int.hpp:70
Equal-if-then-else domain-consistent propagator.
Definition: distinct.hh:349
Home class for posting propagators
Definition: core.hpp:856
IntView x1
Definition: pattern.hpp:87
int c0
The integer constant.
Definition: distinct.hh:354
Gecode::IntSet d1(v1, 7)
bool in(int n) const
Test whether n is contained in domain.
Definition: int.hpp:107
Integer view for integer variables.
Definition: view.hpp:129
#define forceinline
Definition: config.hpp:185
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition: macros.hpp:52
ModEvent lq(Space &home, int n)
Restrict domain values to be less or equal than n.
Definition: int.hpp:121
ModEvent gq(Space &home, int n)
Restrict domain values to be greater or equal than n.
Definition: int.hpp:139
Binary propagator.
Definition: pattern.hpp:84
const Gecode::PropCond PC_INT_DOM
Propagate when domain changes.
Definition: var-type.hpp:100
Execution is okay.
Definition: core.hpp:476
IntView x0
Two views.
Definition: pattern.hpp:87
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:232
const FloatNum max
Largest allowed float value.
Definition: float.hh:844
ExecStatus
Definition: core.hpp:472