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ranges-empty.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 *
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33
34namespace Gecode { namespace Iter { namespace Ranges {
35
41
42 class Empty {
43 public:
45
46
47 Empty(void);
49 void init(void);
51
53
54
55 bool operator ()(void) const;
57 void operator ++(void);
59
61
62
63 int min(void) const;
65 int max(void) const;
67 unsigned int width(void) const;
69 };
70
71
73 Empty::Empty(void) {}
74
75 forceinline void
76 Empty::init(void) {}
77
78 forceinline void
82
83 forceinline bool
84 Empty::operator ()(void) const {
85 return false;
86 }
87
88 forceinline int
89 Empty::min(void) const {
91 return 0;
92 }
93 forceinline int
94 Empty::max(void) const {
96 return 0;
97 }
98 forceinline unsigned int
99 Empty::width(void) const {
101 return 0;
102 }
103
104}}}
105
106// STATISTICS: iter-any
107
Empty(void)
Default constructor.
void init(void)
Initialize.
bool operator()(void) const
Test whether iterator is still at a range or done.
void operator++(void)
Move iterator to next range (if possible)
int max(void) const
Return largest value of range.
int min(void) const
Return smallest value of range.
unsigned int width(void) const
Return width of range (distance between minimum and maximum)
Range iterators.
Definition iter.hh:43
Range and value iterators.
Definition iter.hh:41
Gecode toplevel namespace
#define forceinline
Definition config.hpp:194
#define GECODE_NEVER
Assert that this command is never executed.
Definition macros.hpp:56