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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
8  *
9  * This file is part of Gecode, the generic constraint
10  * development environment:
11  * http://www.gecode.org
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13  * Permission is hereby granted, free of charge, to any person obtaining
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33 
34 #include <gecode/minimodel.hh>
35 #include "test/int.hh"
36 
37 namespace Test { namespace Int {
38 
40  namespace Member {
41 
48  class Int : public Test {
49  public:
51  Int(int n) : Test("Member::Int::"+str(n),n+1,0,n,true) {}
53  virtual bool solution(const Assignment& x) const {
54  int n = x.size() - 1;
55  for (int i=n; i--; )
56  if (x[i] == x[n])
57  return true;
58  return false;
59  }
61  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
62  using namespace Gecode;
63  int n = x.size() - 1;
64  IntVarArgs y(n);
65  for (int i=n; i--; )
66  y[i] = x[i];
67  member(home, y, x[n]);
68  }
70  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x,
71  Gecode::Reify r) {
72  using namespace Gecode;
73  int n = x.size() - 1;
74  IntVarArgs y(n);
75  for (int i=n; i--; )
76  y[i] = x[i];
77  member(home, y, x[n], r);
78  }
79  };
80 
82  class Bool : public Test {
83  public:
85  Bool(int n) : Test("Member::Bool::"+str(n),n+1,0,1,true) {}
87  virtual bool solution(const Assignment& x) const {
88  int n = x.size() - 1;
89  for (int i=n; i--; )
90  if (x[i] == x[n])
91  return true;
92  return false;
93  }
95  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x) {
96  using namespace Gecode;
97  int n = x.size() - 1;
98  BoolVarArgs y(n);
99  for (int i=n; i--; )
100  y[i] = channel(home,x[i]);
101  member(home, y, channel(home,x[n]));
102  }
104  virtual void post(Gecode::Space& home, Gecode::IntVarArray& x,
105  Gecode::Reify r) {
106  using namespace Gecode;
107  int n = x.size() - 1;
108  BoolVarArgs y(n);
109  for (int i=n; i--; )
110  y[i] = channel(home,x[i]);
111  member(home, y, channel(home,x[n]), r);
112  }
113  };
114 
116  class Create {
117  public:
119  Create(void) {
120  for (int i=0; i<=4; i++) {
121  (void) new Int(i);
122  (void) new Bool(i);
123  }
124  }
125  };
126 
129 
130  }
131 }}
132 
133 // STATISTICS: test-int
134 
int n
Number of negative literals for node type.
Definition: bool-expr.cpp:234
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:249
Passing Boolean variables.
Definition: int.hh:712
Passing integer variables.
Definition: int.hh:656
Integer variable array.
Definition: int.hh:763
Reification specification.
Definition: int.hh:876
Computation spaces.
Definition: core.hpp:1742
Base class for assignments
Definition: int.hh:59
Test membership for Boolean variables
Definition: member.cpp:82
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x, Gecode::Reify r)
Post reified constraint on x for r.
Definition: member.cpp:104
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post constraint on x.
Definition: member.cpp:95
Bool(int n)
Create and register test.
Definition: member.cpp:85
virtual bool solution(const Assignment &x) const
Test whether x is solution
Definition: member.cpp:87
Help class to create and register tests.
Definition: member.cpp:116
Create(void)
Perform creation and registration.
Definition: member.cpp:119
Test membership for integer variables
Definition: member.cpp:48
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x)
Post constraint on x.
Definition: member.cpp:61
virtual void post(Gecode::Space &home, Gecode::IntVarArray &x, Gecode::Reify r)
Post reified constraint on x for r.
Definition: member.cpp:70
Int(int n)
Create and register test.
Definition: member.cpp:51
virtual bool solution(const Assignment &x) const
Test whether x is solution
Definition: member.cpp:53
static std::string str(Gecode::IntPropLevel ipl)
Map integer propagation level to string.
Definition: int.hpp:209
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition: channel.cpp:41
void member(Home home, const IntVarArgs &x, IntVar y, IntPropLevel)
Post domain consistent propagator for .
Definition: member.cpp:39
Post propagator for SetVar SetOpType SetVar y
Definition: set.hh:767
Gecode::IntArgs i({1, 2, 3, 4})
General test support.
Definition: afc.cpp:39
Region r
Definition: region.cpp:65