1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
// Copyright (c) 2003 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.2-branch/Kernel_23/include/CGAL/Kernel/Cartesian_coordinate_iterator_3.h $
// $Id: Cartesian_coordinate_iterator_3.h 28567 2006-02-16 14:30:13Z lsaboret $
//
//
// Author(s) : Andreas Fabri
#ifndef CGAL_CARTESIAN_COORDINATE_ITERATOR_3_H
#define CGAL_CARTESIAN_COORDINATE_ITERATOR_3_H
#include <cstddef>
#include <iterator>
CGAL_BEGIN_NAMESPACE
template <class K>
class Cartesian_coordinate_iterator_3
{
typedef typename K::Point_3 P;
const P* point;
int index;
typedef Cartesian_coordinate_iterator_3<K> Self;
public:
typedef typename K::FT FT;
typedef P Point;
typedef std::random_access_iterator_tag iterator_category;
typedef FT value_type;
typedef std::ptrdiff_t difference_type;
typedef const value_type& reference;
typedef const value_type* pointer;
Cartesian_coordinate_iterator_3(const Point *const p = NULL,
int _index = 0)
: point(p), index(_index)
{}
const FT
operator*() const {
return point->cartesian(index);
}
Self& operator++() {
index++;
return *this;
}
Self&
operator--() {
index--;
return *this;
}
Self
operator++(int) {
Self tmp(*this);
++(*this);
return tmp;
}
Self
operator--(int) {
Self tmp(*this);
--(*this);
return tmp;
}
Self&
operator+=(difference_type i) {
index+=i;
return *this;
}
Self&
operator-=(difference_type i) {
index -= i;
return *this;
}
Self
operator+(difference_type i) const {
Self tmp=*this;
return tmp += i;
}
Self operator-(difference_type i) const {
Self tmp=*this;
return tmp -= i;
}
difference_type
operator-(const Self& x) const {
CGAL_kernel_assertion(point == x.point);
return index - x.index;
}
reference operator[](difference_type i) const {
return *(*this + i);
}
bool operator==(const Self& x) const {
return (point == x.point)&& (index == x.index) ;
}
bool operator!=(const Self& x) const {
return ! (*this==x);
}
bool operator<(const Self& x) const
{
return (x - *this) > 0; }
};
CGAL_END_NAMESPACE
#endif // CGAL_CARTESIAN_COORDINATE_ITERATOR_3_H
|
