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bool.cpp
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4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2006
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33 
34 #include <gecode/int.hh>
35 
36 namespace Gecode { namespace Int {
37 
38  BoolVarImp BoolVarImp::s_one(1);
39  BoolVarImp BoolVarImp::s_zero(0);
40 
41  ModEvent
43  assert(none());
44  bits() ^= (NONE ^ ONE);
45  assert(one());
46  IntDelta d(0);
47  return notify(home,ME_BOOL_VAL,d);
48  }
49 
50  ModEvent
52  assert(none());
53  bits() ^= (NONE ^ ZERO);
54  assert(zero());
55  IntDelta d(1);
56  return notify(home,ME_BOOL_VAL,d);
57  }
58 
59  void
61  bool schedule) {
62  // Subscription can be used with integer propagation conditions,
63  // which must be remapped to the single Boolean propagation condition.
65  }
66 
67  void
70  }
71 
72  void
73  BoolVarImp::subscribe(Space& home, Advisor& a, bool fail) {
75  }
76 
77 }}
78 
79 // STATISTICS: int-var
static const BoolStatus NONE
Status of domain not yet assigned.
Definition: var-imp.hpp:525
const Gecode::PropCond PC_BOOL_VAL
Propagate when a view becomes assigned (single value)
Definition: var-type.hpp:126
void subscribe(Gecode::Space &home, Gecode::Propagator &p, Gecode::PropCond pc, bool assigned, bool schedule)
Subscribe propagator p with propagation condition pc.
Definition: var-imp.hpp:304
bool one(void) const
Test whether variable is assigned to one.
Definition: bool.hpp:135
ModEvent fail(Space &home)
Run advisors to be run on failure and returns ME_GEN_FAILED.
Definition: core.hpp:4570
Gecode::ModEvent notify(Gecode::Space &home, Gecode::ModEvent me, Gecode::Delta &d)
Notify that variable implementation has been modified with modification event me and delta informatio...
Definition: var-imp.hpp:322
bool zero(void) const
Test whether variable is assigned to zero.
Definition: bool.hpp:131
void reschedule(Gecode::Space &home, Gecode::Propagator &p, Gecode::PropCond pc, bool assigned)
Re-schedule propagator p.
Definition: var-imp.hpp:317
Computation spaces.
Definition: core.hpp:1742
void subscribe(Space &home, Propagator &p, PropCond pc, bool schedule=true)
Subscribe propagator p to variable with propagation condition pc.
Definition: bool.cpp:60
unsigned int bits(void) const
Provide access to free bits.
Definition: core.hpp:4196
static const BoolStatus ONE
Status of domain assigned to one.
Definition: var-imp.hpp:523
bool assigned(void) const
Test whether variable is assigned.
Definition: bool.hpp:85
const Gecode::ModEvent ME_BOOL_VAL
Domain operation has resulted in a value (assigned variable)
Definition: var-type.hpp:116
ModEvent zero_none(Space &home)
Assign unassigned variable to zero.
Definition: bool.cpp:51
Gecode toplevel namespace
Base-class for propagators.
Definition: core.hpp:1064
static void schedule(Space &home, Propagator &p, ModEvent me)
Schedule propagator p with modification event me.
Definition: bool.hpp:405
struct Gecode::@602::NNF::@65::@67 a
For atomic nodes.
int ModEvent
Type for modification events.
Definition: core.hpp:62
int PropCond
Type for propagation conditions.
Definition: core.hpp:72
Gecode::IntSet d(v, 7)
Base-class for advisors.
Definition: core.hpp:1292
Integer delta information for advisors.
Definition: var-imp.hpp:51
static const BoolStatus ZERO
Status of domain assigned to zero.
Definition: var-imp.hpp:521
void reschedule(Space &home, Propagator &p, PropCond pc)
Re-schedule propagator p.
Definition: bool.cpp:68
bool none(void) const
Test whether variable is not yet assigned.
Definition: bool.hpp:139
ModEvent one_none(Space &home)
Assign unassigned variable to one.
Definition: bool.cpp:42
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:232