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values-positive.hpp
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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, 2008
8 *
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10 * development environment:
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33
34namespace Gecode { namespace Iter { namespace Values {
35
42 template<class I, bool strict=false>
43 class Positive {
44 protected:
46 I i;
47 public:
49
50
51 Positive(void);
53 Positive(I& i);
55 void init(I& i);
57
59
60
61 bool operator ()(void) const;
63 void operator ++(void);
65
67
68
69 int val(void) const;
71 };
72
73
74 template<class I, bool strict>
77
78 template<class I, bool strict>
79 forceinline void
81 i=i0;
82 if (strict) {
83 while (i() && (i.val() <= 0)) ++i;
84 } else {
85 while (i() && (i.val() < 0)) ++i;
86 }
87 }
88
89 template<class I, bool strict>
92 if (strict) {
93 while (i() && (i.val() <= 0)) ++i;
94 } else {
95 while (i() && (i.val() < 0)) ++i;
96 }
97 }
98
99 template<class I, bool strict>
100 forceinline void
102 ++i;
103 }
104 template<class I, bool strict>
105 forceinline bool
107 return i();
108 }
109
110 template<class I, bool strict>
111 forceinline int
113 return i.val();
114 }
115
116}}}
117
118// STATISTICS: iter-any
119
bool operator()(void) const
Test whether iterator is still at a value or done.
void operator++(void)
Move iterator to next value (if possible)
void init(I &i)
Initialize with values from i.
Positive(void)
Default constructor.
int val(void) const
Return current value.
Value iterators.
Definition iter.hh:45
Range and value iterators.
Definition iter.hh:41
Gecode toplevel namespace
#define forceinline
Definition config.hpp:194