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channel.hpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main author:
4  * Christian Schulte <schulte@gecode.org>
5  * Guido Tack <tack@gecode.org>
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7  * Copyright:
8  * Christian Schulte, 2018
9  * Guido Tack, 2018
10  *
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35 
36 namespace Gecode {
37 
38  inline BoolVar
40  (void) ipl;
41  BoolVar b(home,0,1); channel(home,b,x);
42  return b;
43  }
44 
45  inline IntVar
47  (void) ipl;
48  IntVar x(home,0,1); channel(home,b,x);
49  return x;
50  }
51 
52 #ifdef GECODE_HAS_FLOAT_VARS
53  inline IntVar
55  int min = static_cast<int>(std::max(static_cast<double>(Int::Limits::min),
56  std::ceil(f.min())));
57  int max = static_cast<int>(std::min(static_cast<double>(Int::Limits::max),
58  std::floor(f.max())));
59  IntVar x(home,min,max);
60  channel(home,f,x);
61  return x;
62  }
63 #endif
64 
65 #ifdef GECODE_HAS_SET_VARS
66  inline SetVar
67  channel(Home home, const IntVarArgs& x, IntPropLevel ipl) {
68  (void) ipl;
70  rel(home,SOT_UNION,x,s);
71  nvalues(home,x,IRT_EQ,expr(home,cardinality(s)));
72  return s;
73  }
74 #endif
75 
76 }
77 
78 // STATISTICS: minimodel-any
79 
Post propagator for SetVar x
Definition: set.hh:767
void max(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition: arithmetic.cpp:49
Passing integer variables.
Definition: int.hh:656
static const IntSet empty
Empty set.
Definition: int.hh:283
const int min
Smallest allowed integer in integer set.
Definition: set.hh:99
const FloatNum min
Smallest allowed float value.
Definition: float.hh:846
IntPropLevel
Propagation levels for integer propagators.
Definition: int.hh:974
void nvalues(Home home, const IntVarArgs &x, IntRelType irt, int y, IntPropLevel)
Post propagator for .
Definition: nvalues.cpp:40
Gecode toplevel namespace
const int max
Largest allowed integer in integer set.
Definition: set.hh:97
BoolVar expr(Home home, const BoolExpr &e, const IntPropLevels &ipls)
Post Boolean expression and return its value.
Definition: bool-expr.cpp:629
Home class for posting propagators
Definition: core.hpp:856
@ SOT_UNION
Union.
Definition: set.hh:661
Boolean integer variables.
Definition: int.hh:512
Set variables
Definition: set.hh:127
LinIntExpr cardinality(const SetExpr &e)
Cardinality of set expression.
Definition: set-expr.cpp:817
struct Gecode::@602::NNF::@65::@66 b
For binary nodes (and, or, eqv)
const int max
Largest allowed integer value.
Definition: int.hh:116
Integer variables.
Definition: int.hh:371
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVal n)
Propagates .
Definition: rel.cpp:43
Float variables.
Definition: float.hh:870
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition: channel.cpp:41
const int min
Smallest allowed integer value.
Definition: int.hh:118
@ IRT_EQ
Equality ( )
Definition: int.hh:926
void min(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition: arithmetic.cpp:67
Post propagator for f(x \diamond_{\mathit{op}} y) \sim_r z \f$ void rel(Home home
const FloatNum max
Largest allowed float value.
Definition: float.hh:844