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values-offset.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, 2007
8 *
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10 * development environment:
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33
34namespace Gecode { namespace Iter { namespace Values {
35
41 template<class I>
42 class Offset {
43 protected:
45 I i;
47 int c;
48 public:
50
51
52 Offset(void);
54 Offset(I& i, int c);
56 void init(I& i, int c);
58
60
61
62 bool operator ()(void) const;
64 void operator ++(void);
66
68
69
70 int val(void) const;
72 };
73
74
75 template<class I>
78
79 template<class I>
80 forceinline void
81 Offset<I>::init(I& i0, int c0) {
82 i = i0; c = c0;
83 }
84
85 template<class I>
87 Offset<I>::Offset(I& i0, int c0) : i(i0), c(c0) {}
88
89 template<class I>
90 forceinline void
92 ++i;
93 }
94 template<class I>
95 forceinline bool
97 return i();
98 }
99
100 template<class I>
101 forceinline int
102 Offset<I>::val(void) const {
103 return i.val()+c;
104 }
105
106}}}
107
108// STATISTICS: iter-any
109
void operator++(void)
Move iterator to next value (if possible)
int c
Offset for ranges.
bool operator()(void) const
Test whether iterator is still at a value or done.
Offset(void)
Default constructor.
void init(I &i, int c)
Initialize with values from i and offset c.
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