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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2014, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef GEOMETRY_TEST_ITERATORS_TEST_ITERATOR_COMMON_HPP
#define GEOMETRY_TEST_ITERATORS_TEST_ITERATOR_COMMON_HPP
#include <cstddef>
#include <iostream>
#include <iterator>
#include <string>
#include <algorithm>
#include <boost/test/included/unit_test.hpp>
// helper functions for testing the concatenate and flatten iterators
template <typename Iterator>
inline std::ostream& print_container(std::ostream& os,
Iterator begin, Iterator end,
std::string const& header)
{
std::cout << header;
for (Iterator it = begin; it != end; ++it)
{
os << " " << *it;
}
return os;
}
template <typename Iterator>
inline std::ostream& print_nested_container(std::ostream& os,
Iterator begin, Iterator end,
std::string const& header)
{
typedef typename std::iterator_traits<Iterator>::value_type inner_container;
typedef typename inner_container::const_iterator inner_iterator;
std::cout << header;
for (Iterator outer = begin; outer != end; ++outer)
{
os << " (";
for (inner_iterator inner = outer->begin();
inner != outer->end(); ++inner)
{
if ( inner != outer->begin() )
{
os << " ";
}
os << *inner;
}
os << ") ";
}
return os;
}
template <typename T>
struct is_odd
{
inline bool operator()(T const& t) const
{
return t % 2 != 0;
}
};
template <typename T>
struct is_even
{
inline bool operator()(T const& t) const
{
return !is_odd<T>()(t);
}
};
template <typename CombinedIterator, typename CombinedContainer>
inline void test_size(CombinedIterator first, CombinedIterator beyond,
CombinedContainer const& combined)
{
std::size_t size = static_cast<std::size_t>(std::distance(first, beyond));
BOOST_CHECK( combined.size() == size );
size = 0;
for (CombinedIterator it = first; it != beyond; ++it)
{
++size;
}
BOOST_CHECK( combined.size() == size );
size = 0;
for (CombinedIterator it = beyond; it != first; --it)
{
++size;
}
BOOST_CHECK( combined.size() == size );
}
template <typename CombinedIterator, typename CombinedContainer>
inline void test_equality(CombinedIterator first, CombinedIterator beyond,
CombinedContainer const& combined)
{
typedef typename CombinedContainer::const_iterator iterator;
{
iterator it = combined.begin();
for (CombinedIterator cit = first; cit != beyond; ++cit, ++it)
{
BOOST_CHECK( *cit == *it );
}
}
if ( combined.begin() != combined.end() )
{
BOOST_CHECK( first != beyond );
iterator it = combined.end();
CombinedIterator cit = beyond;
for (--cit, --it; cit != first; --cit, --it)
{
BOOST_CHECK( *cit == *it );
}
BOOST_CHECK( cit == first && it == combined.begin() );
BOOST_CHECK( *cit == *it );
}
else
{
BOOST_CHECK( first == beyond );
}
}
template <typename CombinedIterator, typename CombinedContainer>
inline void test_using_remove_if(CombinedIterator first,
CombinedIterator beyond,
CombinedContainer& combined)
{
typedef typename std::iterator_traits
<
CombinedIterator
>::value_type value_type;
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "odd elements removed:" << std::endl;
print_container(std::cout, first, beyond, "before:") << std::endl;
#endif
typename std::iterator_traits<CombinedIterator>::difference_type
num_even = std::count_if(first, beyond, is_even<value_type>());
CombinedIterator new_beyond =
std::remove_if(first, beyond, is_odd<value_type>());
std::size_t new_size = std::distance(first, new_beyond);
for (CombinedIterator it = first; it != new_beyond; ++it)
{
BOOST_CHECK( !is_odd<value_type>()(*it) );
}
BOOST_CHECK( new_size == static_cast<std::size_t>(num_even) );
#ifdef BOOST_GEOMETRY_TEST_DEBUG
print_container(std::cout, first, new_beyond, "after :") << std::endl;
#endif
combined.erase(std::remove_if(combined.begin(), combined.end(),
is_odd<value_type>()),
combined.end());
test_equality(first, new_beyond, combined);
}
template <typename CombinedIterator, typename CombinedContainer>
inline void test_using_reverse(CombinedIterator first,
CombinedIterator beyond,
CombinedContainer& combined)
{
std::reverse(first, beyond);
std::reverse(combined.begin(), combined.end());
test_equality(first, beyond, combined);
#ifdef BOOST_GEOMETRY_TEST_DEBUG
print_container(std::cout, first, beyond, "reversed:") << std::endl;
#endif
std::reverse(first, beyond);
std::reverse(combined.begin(), combined.end());
test_equality(first, beyond, combined);
#ifdef BOOST_GEOMETRY_TEST_DEBUG
print_container(std::cout, first, beyond, "re-reversed:") << std::endl;
#endif
}
#endif // GEOMETRY_TEST_ITERATORS_TEST_ITERATOR_COMMON_HPP
|
