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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<ForwardIterator Iter, EquivalenceRelation<auto, Iter::value_type> Pred>
// requires OutputIterator<Iter, RvalueOf<Iter::reference>::type>
// && CopyConstructible<Pred>
// Iter
// unique(Iter first, Iter last, Pred pred);
#include <algorithm>
#include <cassert>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
#include <memory>
#endif
#include "test_iterators.h"
struct count_equal
{
static unsigned count;
template <class T>
bool operator()(const T& x, const T& y)
{++count; return x == y;}
};
unsigned count_equal::count = 0;
template <class Iter>
void
test()
{
int ia[] = {0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
count_equal::count = 0;
Iter r = std::unique(Iter(ia), Iter(ia+sa), count_equal());
assert(base(r) == ia + sa);
assert(ia[0] == 0);
assert(count_equal::count == sa-1);
int ib[] = {0, 1};
const unsigned sb = sizeof(ib)/sizeof(ib[0]);
count_equal::count = 0;
r = std::unique(Iter(ib), Iter(ib+sb), count_equal());
assert(base(r) == ib + sb);
assert(ib[0] == 0);
assert(ib[1] == 1);
assert(count_equal::count == sb-1);
int ic[] = {0, 0};
const unsigned sc = sizeof(ic)/sizeof(ic[0]);
count_equal::count = 0;
r = std::unique(Iter(ic), Iter(ic+sc), count_equal());
assert(base(r) == ic + 1);
assert(ic[0] == 0);
assert(count_equal::count == sc-1);
int id[] = {0, 0, 1};
const unsigned sd = sizeof(id)/sizeof(id[0]);
count_equal::count = 0;
r = std::unique(Iter(id), Iter(id+sd), count_equal());
assert(base(r) == id + 2);
assert(id[0] == 0);
assert(id[1] == 1);
assert(count_equal::count == sd-1);
int ie[] = {0, 0, 1, 0};
const unsigned se = sizeof(ie)/sizeof(ie[0]);
count_equal::count = 0;
r = std::unique(Iter(ie), Iter(ie+se), count_equal());
assert(base(r) == ie + 3);
assert(ie[0] == 0);
assert(ie[1] == 1);
assert(ie[2] == 0);
assert(count_equal::count == se-1);
int ig[] = {0, 0, 1, 1};
const unsigned sg = sizeof(ig)/sizeof(ig[0]);
count_equal::count = 0;
r = std::unique(Iter(ig), Iter(ig+sg), count_equal());
assert(base(r) == ig + 2);
assert(ig[0] == 0);
assert(ig[1] == 1);
assert(count_equal::count == sg-1);
int ih[] = {0, 1, 1};
const unsigned sh = sizeof(ih)/sizeof(ih[0]);
count_equal::count = 0;
r = std::unique(Iter(ih), Iter(ih+sh), count_equal());
assert(base(r) == ih + 2);
assert(ih[0] == 0);
assert(ih[1] == 1);
assert(count_equal::count == sh-1);
int ii[] = {0, 1, 1, 1, 2, 2, 2};
const unsigned si = sizeof(ii)/sizeof(ii[0]);
count_equal::count = 0;
r = std::unique(Iter(ii), Iter(ii+si), count_equal());
assert(base(r) == ii + 3);
assert(ii[0] == 0);
assert(ii[1] == 1);
assert(ii[2] == 2);
assert(count_equal::count == si-1);
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct do_nothing
{
void operator()(void*) const {}
};
typedef std::unique_ptr<int, do_nothing> Ptr;
template <class Iter>
void
test1()
{
int one = 1;
int two = 2;
Ptr ia[1];
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
count_equal::count = 0;
Iter r = std::unique(Iter(ia), Iter(ia+sa), count_equal());
assert(base(r) == ia + sa);
assert(ia[0] == 0);
assert(count_equal::count == sa-1);
Ptr ib[2];
ib[1].reset(&one);
const unsigned sb = sizeof(ib)/sizeof(ib[0]);
count_equal::count = 0;
r = std::unique(Iter(ib), Iter(ib+sb), count_equal());
assert(base(r) == ib + sb);
assert(ib[0] == 0);
assert(*ib[1] == 1);
assert(count_equal::count == sb-1);
Ptr ic[2];
const unsigned sc = sizeof(ic)/sizeof(ic[0]);
count_equal::count = 0;
r = std::unique(Iter(ic), Iter(ic+sc), count_equal());
assert(base(r) == ic + 1);
assert(ic[0] == 0);
assert(count_equal::count == sc-1);
Ptr id[3];
id[2].reset(&one);
const unsigned sd = sizeof(id)/sizeof(id[0]);
count_equal::count = 0;
r = std::unique(Iter(id), Iter(id+sd), count_equal());
assert(base(r) == id + 2);
assert(id[0] == 0);
assert(*id[1] == 1);
assert(count_equal::count == sd-1);
Ptr ie[4];
ie[2].reset(&one);
const unsigned se = sizeof(ie)/sizeof(ie[0]);
count_equal::count = 0;
r = std::unique(Iter(ie), Iter(ie+se), count_equal());
assert(base(r) == ie + 3);
assert(ie[0] == 0);
assert(*ie[1] == 1);
assert(ie[2] == 0);
assert(count_equal::count == se-1);
Ptr ig[4];
ig[2].reset(&one);
ig[3].reset(&one);
const unsigned sg = sizeof(ig)/sizeof(ig[0]);
count_equal::count = 0;
r = std::unique(Iter(ig), Iter(ig+sg), count_equal());
assert(base(r) == ig + 2);
assert(ig[0] == 0);
assert(*ig[1] == 1);
assert(count_equal::count == sg-1);
Ptr ih[3];
ih[1].reset(&one);
ih[2].reset(&one);
const unsigned sh = sizeof(ih)/sizeof(ih[0]);
count_equal::count = 0;
r = std::unique(Iter(ih), Iter(ih+sh), count_equal());
assert(base(r) == ih + 2);
assert(ih[0] == 0);
assert(*ih[1] == 1);
assert(count_equal::count == sh-1);
Ptr ii[7];
ii[1].reset(&one);
ii[2].reset(&one);
ii[3].reset(&one);
ii[4].reset(&two);
ii[5].reset(&two);
ii[6].reset(&two);
const unsigned si = sizeof(ii)/sizeof(ii[0]);
count_equal::count = 0;
r = std::unique(Iter(ii), Iter(ii+si), count_equal());
assert(base(r) == ii + 3);
assert(ii[0] == 0);
assert(*ii[1] == 1);
assert(*ii[2] == 2);
assert(count_equal::count == si-1);
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
test<forward_iterator<int*> >();
test<bidirectional_iterator<int*> >();
test<random_access_iterator<int*> >();
test<int*>();
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test1<forward_iterator<Ptr*> >();
test1<bidirectional_iterator<Ptr*> >();
test1<random_access_iterator<Ptr*> >();
test1<Ptr*>();
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}
|
