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set.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Guido Tack <tack@gecode.org>
5  * Christian Schulte <schulte@gecode.org>
6  * Gabor Szokoli <szokoli@gecode.org>
7  *
8  * Copyright:
9  * Guido Tack, 2004
10  * Christian Schulte, 2004
11  * Gabor Szokoli, 2004
12  *
13  * This file is part of Gecode, the generic constraint
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37 
38 
39 #include <gecode/set.hh>
40 
41 namespace Gecode {
42 
44  : VarImpVar<Set::SetVarImp>(new (home) Set::SetVarImp(home)) {}
45 
46  SetVar::SetVar(Space& home,int lbMin,int lbMax,int ubMin,int ubMax,
47  unsigned int minCard, unsigned int maxCard)
48  : VarImpVar<Set::SetVarImp>(new (home) Set::SetVarImp(home,lbMin,lbMax,
49  ubMin,ubMax,
50  minCard,maxCard)) {
51  Set::Limits::check(lbMin,"SetVar::SetVar");
52  Set::Limits::check(lbMax,"SetVar::SetVar");
53  Set::Limits::check(ubMin,"SetVar::SetVar");
54  Set::Limits::check(ubMax,"SetVar::SetVar");
55  Set::Limits::check(maxCard,"SetVar::SetVar");
56  if (minCard > maxCard || minCard > lubSize() || maxCard < glbSize() ||
57  lbMin < ubMin || lbMax > ubMax)
58  throw Set::VariableEmptyDomain("SetVar::SetVar");
59  }
60 
61  SetVar::SetVar(Space& home, const IntSet& glb,int ubMin,int ubMax,
62  unsigned int minCard, unsigned int maxCard)
63  : VarImpVar<Set::SetVarImp>(new (home) Set::SetVarImp(home,glb,ubMin,ubMax,
64  minCard,maxCard)) {
65  Set::Limits::check(glb,"SetVar::SetVar");
66  Set::Limits::check(ubMin,"SetVar::SetVar");
67  Set::Limits::check(ubMax,"SetVar::SetVar");
68  Set::Limits::check(maxCard,"SetVar::SetVar");
69  if (minCard > maxCard || minCard > lubSize() || maxCard < glbSize() ||
70  glb.min() < ubMin || glb.max() > ubMax)
71  throw Set::VariableEmptyDomain("SetVar::SetVar");
72  }
73 
74  SetVar::SetVar(Space& home,int lbMin,int lbMax,const IntSet& lub,
75  unsigned int minCard, unsigned int maxCard)
76  : VarImpVar<Set::SetVarImp>(new (home) Set::SetVarImp(home,lbMin,lbMax,lub,
77  minCard,maxCard)) {
78  Set::Limits::check(lbMin,"SetVar::SetVar");
79  Set::Limits::check(lbMax,"SetVar::SetVar");
80  Set::Limits::check(lub,"SetVar::SetVar");
81  Set::Limits::check(maxCard,"SetVar::SetVar");
82  Iter::Ranges::Singleton glbr(lbMin,lbMax);
83  IntSetRanges lubr(lub);
84  if (minCard > maxCard || minCard > lubSize() || maxCard < glbSize() ||
85  !Iter::Ranges::subset(glbr,lubr))
86  throw Set::VariableEmptyDomain("SetVar::SetVar");
87  }
88 
90  const IntSet& glb, const IntSet& lub,
91  unsigned int minCard, unsigned int maxCard)
92  : VarImpVar<Set::SetVarImp>(new (home) Set::SetVarImp(home,glb,lub,minCard,
93  maxCard)) {
94  Set::Limits::check(glb,"SetVar::SetVar");
95  Set::Limits::check(lub,"SetVar::SetVar");
96  Set::Limits::check(maxCard,"SetVar::SetVar");
97  IntSetRanges glbr(glb);
98  IntSetRanges lubr(lub);
99  if (minCard > maxCard || minCard > lubSize() || maxCard < glbSize() ||
100  !Iter::Ranges::subset(glbr,lubr))
101  throw Set::VariableEmptyDomain("SetVar::SetVar");
102  }
103 
104 }
105 
106 // STATISTICS: set-var
107 
int min(int i) const
Return minimum of range at position i.
Definition: int-set-1.hpp:152
int max(int i) const
Return maximum of range at position i.
Definition: int-set-1.hpp:158
Computation spaces.
Definition: core.hpp:1742
bool subset(I &i, J &j)
Check whether range iterator i is subset of range iterator j.
Range iterator for integer sets.
Definition: int.hh:292
SetVar(void)
Default constructor.
Definition: set.hpp:46
Gecode toplevel namespace
Integer sets.
Definition: int.hh:174
unsigned int lubSize(void) const
Return number of elements in the least upper bound.
Definition: set.hpp:66
Exception: Variable created with empty domain
Definition: exception.hpp:59
Variables as interfaces to variable implementations.
Definition: var.hpp:47
void check(int n, const char *l)
Check whether integer n is in range, otherwise throw overflow exception with information l.
Definition: limits.hpp:37
unsigned int glbSize(void) const
Return number of elements in the greatest lower bound.
Definition: set.hpp:63
Finite integer set variable implementation.
Definition: var-imp.hpp:430
Range iterator for singleton range.