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ranges-values.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, 2004
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
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33
34namespace Gecode { namespace Iter { namespace Ranges {
35
41 template<class I>
42 class ToValues {
43 protected:
45 I i;
47 int cur;
49 int max;
51 void start(void);
52 public:
54
55
56 ToValues(void);
60 void init(I& i);
62
64
65
66 bool operator ()(void) const;
68 void operator ++(void);
70
72
73
74 int val(void) const;
76 };
77
78
79
80 template<class I>
83
84 template<class I>
85 forceinline void
87 if (i()) {
88 cur = i.min(); max = i.max();
89 } else {
90 cur = 1; max = 0;
91 }
92 }
93
94 template<class I>
97 : i(i0) {
98 start();
99 }
100
101 template<class I>
102 forceinline void
104 i = i0;
105 start();
106 }
107
108
109 template<class I>
110 forceinline bool
112 return (cur <= max);
113 }
114
115 template<class I>
116 forceinline void
118 ++cur;
119 if (cur > max) {
120 ++i;
121 if (i()) {
122 cur = i.min(); max = i.max();
123 }
124 }
125 }
126
127 template<class I>
128 forceinline int
129 ToValues<I>::val(void) const {
130 return cur;
131 }
132
133}}}
134
135// STATISTICS: iter-any
136
Value iterator from range iterator.
int val(void) const
Return current value.
void start(void)
Initialize iterator.
ToValues(I &i)
Initialize with values from range iterator i.
void operator++(void)
Move iterator to next value (if possible)
bool operator()(void) const
Test whether iterator is still at a value or done.
void init(I &i)
Initialize with values from range iterator i.
ToValues(void)
Default constructor.
int max
End of current range.
Gecode toplevel namespace
void max(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
#define forceinline
Definition config.hpp:187