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
|
/*
Copyright (c) Marshall Clow 2013.
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
For more information, see http://www.boost.org
*/
#include <boost/config.hpp>
#include <boost/algorithm/cxx17/transform_reduce.hpp>
#include "iterator_test.hpp"
#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>
namespace ba = boost::algorithm;
template <class _Tp>
struct identity
{
const _Tp& operator()(const _Tp& __x) const { return __x;}
};
template <class _Tp>
struct twice
{
const _Tp operator()(const _Tp& __x) const { return 2 * __x; }
};
template <class Iter1, class T, class BOp, class UOp>
void
test_init_bop_uop(Iter1 first1, Iter1 last1, T init, BOp bOp, UOp uOp, T x)
{
BOOST_CHECK(ba::transform_reduce(first1, last1, init, bOp, uOp) == x);
}
template <class Iter>
void
test_init_bop_uop()
{
int ia[] = {1, 2, 3, 4, 5, 6};
unsigned sa = sizeof(ia) / sizeof(ia[0]);
test_init_bop_uop(Iter(ia), Iter(ia), 0, std::plus<int>(), identity<int>(), 0);
test_init_bop_uop(Iter(ia), Iter(ia), 1, std::multiplies<int>(), identity<int>(), 1);
test_init_bop_uop(Iter(ia), Iter(ia+1), 0, std::multiplies<int>(), identity<int>(), 0);
test_init_bop_uop(Iter(ia), Iter(ia+1), 2, std::plus<int>(), identity<int>(), 3);
test_init_bop_uop(Iter(ia), Iter(ia+2), 0, std::plus<int>(), identity<int>(), 3);
test_init_bop_uop(Iter(ia), Iter(ia+2), 3, std::multiplies<int>(), identity<int>(), 6);
test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::multiplies<int>(), identity<int>(), 2880);
test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::plus<int>(), identity<int>(), 25);
test_init_bop_uop(Iter(ia), Iter(ia), 0, std::plus<int>(), twice<int>(), 0);
test_init_bop_uop(Iter(ia), Iter(ia), 1, std::multiplies<int>(), twice<int>(), 1);
test_init_bop_uop(Iter(ia), Iter(ia+1), 0, std::multiplies<int>(), twice<int>(), 0);
test_init_bop_uop(Iter(ia), Iter(ia+1), 2, std::plus<int>(), twice<int>(), 4);
test_init_bop_uop(Iter(ia), Iter(ia+2), 0, std::plus<int>(), twice<int>(), 6);
test_init_bop_uop(Iter(ia), Iter(ia+2), 3, std::multiplies<int>(), twice<int>(), 24);
test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::multiplies<int>(), twice<int>(), 184320); // 64 * 2880
test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::plus<int>(), twice<int>(), 46);
}
void test_transform_reduce_init_bop_uop()
{
BOOST_CHECK ( true );
}
template <class Iter1, class Iter2, class T, class Op1, class Op2>
void
test_init_bop_bop(Iter1 first1, Iter1 last1, Iter2 first2, T init, Op1 op1, Op2 op2, T x)
{
BOOST_CHECK(ba::transform_reduce(first1, last1, first2, init, op1, op2) == x);
}
template <class SIter, class UIter>
void
test_init_bop_bop()
{
int ia[] = {1, 2, 3, 4, 5, 6};
unsigned int ua[] = {2, 4, 6, 8, 10,12};
unsigned sa = sizeof(ia) / sizeof(ia[0]);
BOOST_CHECK(sa == sizeof(ua) / sizeof(ua[0])); // just to be sure
test_init_bop_bop(SIter(ia), SIter(ia), UIter(ua), 0, std::plus<int>(), std::multiplies<int>(), 0);
test_init_bop_bop(UIter(ua), UIter(ua), SIter(ia), 1, std::multiplies<int>(), std::plus<int>(), 1);
test_init_bop_bop(SIter(ia), SIter(ia+1), UIter(ua), 0, std::multiplies<int>(), std::plus<int>(), 0);
test_init_bop_bop(UIter(ua), UIter(ua+1), SIter(ia), 2, std::plus<int>(), std::multiplies<int>(), 4);
test_init_bop_bop(SIter(ia), SIter(ia+2), UIter(ua), 0, std::plus<int>(), std::multiplies<int>(), 10);
test_init_bop_bop(UIter(ua), UIter(ua+2), SIter(ia), 3, std::multiplies<int>(), std::plus<int>(), 54);
test_init_bop_bop(SIter(ia), SIter(ia+sa), UIter(ua), 4, std::multiplies<int>(), std::plus<int>(), 2099520);
test_init_bop_bop(UIter(ua), UIter(ua+sa), SIter(ia), 4, std::plus<int>(), std::multiplies<int>(), 186);
}
void test_transform_reduce_init_bop_bop()
{
// All the iterator categories
test_init_bop_bop<input_iterator <const int*>, input_iterator <const unsigned int*> >();
test_init_bop_bop<input_iterator <const int*>, forward_iterator <const unsigned int*> >();
test_init_bop_bop<input_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
test_init_bop_bop<input_iterator <const int*>, random_access_iterator<const unsigned int*> >();
test_init_bop_bop<forward_iterator <const int*>, input_iterator <const unsigned int*> >();
test_init_bop_bop<forward_iterator <const int*>, forward_iterator <const unsigned int*> >();
test_init_bop_bop<forward_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
test_init_bop_bop<forward_iterator <const int*>, random_access_iterator<const unsigned int*> >();
test_init_bop_bop<bidirectional_iterator<const int*>, input_iterator <const unsigned int*> >();
test_init_bop_bop<bidirectional_iterator<const int*>, forward_iterator <const unsigned int*> >();
test_init_bop_bop<bidirectional_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
test_init_bop_bop<bidirectional_iterator<const int*>, random_access_iterator<const unsigned int*> >();
test_init_bop_bop<random_access_iterator<const int*>, input_iterator <const unsigned int*> >();
test_init_bop_bop<random_access_iterator<const int*>, forward_iterator <const unsigned int*> >();
test_init_bop_bop<random_access_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
test_init_bop_bop<random_access_iterator<const int*>, random_access_iterator<const unsigned int*> >();
// just plain pointers (const vs. non-const, too)
test_init_bop_bop<const int*, const unsigned int *>();
test_init_bop_bop<const int*, unsigned int *>();
test_init_bop_bop< int*, const unsigned int *>();
test_init_bop_bop< int*, unsigned int *>();
}
template <class Iter1, class Iter2, class T>
void
test_init(Iter1 first1, Iter1 last1, Iter2 first2, T init, T x)
{
BOOST_CHECK(ba::transform_reduce(first1, last1, first2, init) == x);
}
template <class SIter, class UIter>
void
test_init()
{
int ia[] = {1, 2, 3, 4, 5, 6};
unsigned int ua[] = {2, 4, 6, 8, 10,12};
unsigned sa = sizeof(ia) / sizeof(ia[0]);
BOOST_CHECK(sa == sizeof(ua) / sizeof(ua[0])); // just to be sure
test_init(SIter(ia), SIter(ia), UIter(ua), 0, 0);
test_init(UIter(ua), UIter(ua), SIter(ia), 1, 1);
test_init(SIter(ia), SIter(ia+1), UIter(ua), 0, 2);
test_init(UIter(ua), UIter(ua+1), SIter(ia), 2, 4);
test_init(SIter(ia), SIter(ia+2), UIter(ua), 0, 10);
test_init(UIter(ua), UIter(ua+2), SIter(ia), 3, 13);
test_init(SIter(ia), SIter(ia+sa), UIter(ua), 0, 182);
test_init(UIter(ua), UIter(ua+sa), SIter(ia), 4, 186);
}
void test_transform_reduce_init()
{
// All the iterator categories
test_init<input_iterator <const int*>, input_iterator <const unsigned int*> >();
test_init<input_iterator <const int*>, forward_iterator <const unsigned int*> >();
test_init<input_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
test_init<input_iterator <const int*>, random_access_iterator<const unsigned int*> >();
test_init<forward_iterator <const int*>, input_iterator <const unsigned int*> >();
test_init<forward_iterator <const int*>, forward_iterator <const unsigned int*> >();
test_init<forward_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
test_init<forward_iterator <const int*>, random_access_iterator<const unsigned int*> >();
test_init<bidirectional_iterator<const int*>, input_iterator <const unsigned int*> >();
test_init<bidirectional_iterator<const int*>, forward_iterator <const unsigned int*> >();
test_init<bidirectional_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
test_init<bidirectional_iterator<const int*>, random_access_iterator<const unsigned int*> >();
test_init<random_access_iterator<const int*>, input_iterator <const unsigned int*> >();
test_init<random_access_iterator<const int*>, forward_iterator <const unsigned int*> >();
test_init<random_access_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
test_init<random_access_iterator<const int*>, random_access_iterator<const unsigned int*> >();
// just plain pointers (const vs. non-const, too)
test_init<const int*, const unsigned int *>();
test_init<const int*, unsigned int *>();
test_init< int*, const unsigned int *>();
test_init< int*, unsigned int *>();
}
BOOST_AUTO_TEST_CASE( test_main )
{
test_transform_reduce_init();
test_transform_reduce_init_bop_uop();
test_transform_reduce_init_bop_bop();
}
|
