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member.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 2011
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9  * Last modified:
10  * $Date: 2011-11-29 17:20:37 +0100 (Tue, 29 Nov 2011) $ by $Author: schulte $
11  * $Revision: 12486 $
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37 
38 #include <gecode/minimodel.hh>
39 #include "test/int.hh"
40 
41 namespace Test { namespace Int {
42 
44  namespace Member {
45 
51  class Int : public Test {
53  public:
55  Int(int n) : Test("Member::Int::"+str(n),n+1,0,n,true) {}
57  virtual bool solution(const Assignment& x) const {
58  int n = x.size() - 1;
59  for (int i=n; i--; )
60  if (x[i] == x[n])
61  return true;
62  return false;
63  }
65  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
66  using namespace Gecode;
67  int n = x.size() - 1;
68  IntVarArgs y(n);
69  for (int i=n; i--; )
70  y[i] = x[i];
71  member(home, y, x[n]);
72  }
74  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x,
75  Gecode::Reify r) {
76  using namespace Gecode;
77  int n = x.size() - 1;
78  IntVarArgs y(n);
79  for (int i=n; i--; )
80  y[i] = x[i];
81  member(home, y, x[n], r);
82  }
83  };
84 
86  class Bool : public Test {
87  public:
89  Bool(int n) : Test("Member::Bool::"+str(n),n+1,0,1,true) {}
91  virtual bool solution(const Assignment& x) const {
92  int n = x.size() - 1;
93  for (int i=n; i--; )
94  if (x[i] == x[n])
95  return true;
96  return false;
97  }
99  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
100  using namespace Gecode;
101  int n = x.size() - 1;
102  BoolVarArgs y(n);
103  for (int i=n; i--; )
104  y[i] = channel(home,x[i]);
105  member(home, y, channel(home,x[n]));
106  }
108  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x,
109  Gecode::Reify r) {
110  using namespace Gecode;
111  int n = x.size() - 1;
112  BoolVarArgs y(n);
113  for (int i=n; i--; )
114  y[i] = channel(home,x[i]);
115  member(home, y, channel(home,x[n]), r);
116  }
117  };
118 
120  class Create {
121  public:
123  Create(void) {
124  for (int i=0; i<=4; i++) {
125  (void) new Int(i);
126  (void) new Bool(i);
127  }
128  }
129  };
130 
133 
134  }
135 }}
136 
137 // STATISTICS: test-int
138 
Test membership for integer variables
Definition: member.cpp:52
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post constraint on x.
Definition: member.cpp:99
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition: arithmetic.cpp:218
Test membership for Boolean variables
Definition: member.cpp:86
void member(Home home, const BoolVarArgs &x, BoolVar y, Reify r, IntConLevel)
Post domain consistent propagator for .
Definition: member.cpp:88
virtual bool solution(const Assignment &x) const
Test whether x is solution
Definition: member.cpp:57
Integer variable array.
Definition: int.hh:741
Computation spaces.
Definition: core.hpp:1362
static std::string str(Gecode::ExtensionalPropKind epk)
Map extensional propagation kind to string.
Definition: int.hpp:212
Int(int n)
Create and register test.
Definition: member.cpp:55
Gecode::IntArgs i(4, 1, 2, 3, 4)
int n
Number of negative literals for node type.
Definition: bool-expr.cpp:238
virtual bool solution(const Assignment &x) const
Test whether x is solution
Definition: member.cpp:91
NNF * r
Right subtree.
Definition: bool-expr.cpp:246
Create(void)
Perform creation and registration.
Definition: member.cpp:123
Reification specification.
Definition: int.hh:854
Passing integer variables.
Definition: int.hh:636
Passing Boolean variables.
Definition: int.hh:690
General test support.
Definition: afc.cpp:43
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x, Gecode::Reify r)
Post reified constraint on x for r.
Definition: member.cpp:108
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x, Gecode::Reify r)
Post reified constraint on x for r.
Definition: member.cpp:74
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:253
Help class to create and register tests.
Definition: member.cpp:120
Base class for assignments
Definition: int.hh:63
Bool(int n)
Create and register test.
Definition: member.cpp:89
Gecode toplevel namespace
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post constraint on x.
Definition: member.cpp:65
int size(void) const
Return size of array (number of elements)
Definition: array.hpp:985
int size(void) const
Return number of variables.
Definition: int.hpp:50