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
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/* Test and measure STRCHR functions.
Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Jakub Jelinek <jakub@redhat.com>, 1999.
Added wcsrrchr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>,
2011.
The GNU C Library is free software; 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; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#define TEST_MAIN
#ifdef WIDE
# define TEST_NAME "wcsrchr"
#else
# define TEST_NAME "strrchr"
#endif
#include "test-string.h"
#ifdef WIDE
# include <wchar.h>
# define SIMPLE_STRRCHR simple_wcsrchr
# define STRRCHR wcsrchr
# define CHAR wchar_t
# define UCHAR wchar_t
# define BIG_CHAR WCHAR_MAX
# define SMALL_CHAR 1273
#else
# define SIMPLE_STRRCHR simple_strrchr
# define STRRCHR strrchr
# define CHAR char
# define UCHAR unsigned char
# define BIG_CHAR CHAR_MAX
# define SMALL_CHAR 127
#endif
typedef CHAR *(*proto_t) (const CHAR *, int);
CHAR *SIMPLE_STRRCHR (const CHAR *, int);
IMPL (SIMPLE_STRRCHR, 0)
IMPL (STRRCHR, 1)
CHAR *
SIMPLE_STRRCHR (const CHAR *s, int c)
{
const CHAR *ret = NULL;
for (; *s != '\0'; ++s)
if (*s == (CHAR) c)
ret = s;
return (CHAR *) (c == '\0' ? s : ret);
}
static void
do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res)
{
CHAR *res = CALL (impl, s, c);
if (res != exp_res)
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,
res, exp_res);
ret = 1;
return;
}
}
static void
do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char)
/* For wcsrchr: align here means align not in bytes,
but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
len for wcschr here isn't in bytes but it's number of wchar_t symbols. */
{
size_t i;
CHAR *result;
CHAR *buf = (CHAR *) buf1;
align &= 7;
if ( (align + len) * sizeof (CHAR) >= page_size)
return;
for (i = 0; i < len; ++i)
{
buf[align + i] = (random () * random ()) & max_char;
if (!buf[align + i])
buf[align + i] = (random () * random ()) & max_char;
if (!buf[align + i])
buf[align + i] = 1;
if ((i > pos || pos >= len) && buf[align + i] == seek_char)
buf[align + i] = seek_char + 10 + (random () & 15);
}
buf[align + len] = 0;
if (pos < len)
{
buf[align + pos] = seek_char;
result = (CHAR *) (buf + align + pos);
}
else if (seek_char == 0)
result = (CHAR *) (buf + align + len);
else
result = NULL;
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, (CHAR *) (buf + align), seek_char, result);
}
static void
do_random_tests (void)
{
size_t i, j, n, align, pos, len;
int seek_char;
CHAR *result;
UCHAR *p = (UCHAR *) (buf1 + page_size) - 512;
for (n = 0; n < ITERATIONS; n++)
{
align = random () & (63 / sizeof (CHAR));
/* For wcsrchr: align here means align not in bytes, but in wchar_ts,
in bytes it will equal to align * (sizeof (wchar_t)).
For strrchr we need to check all alignments from 0 to 63 since
some assembly implementations have separate prolog for alignments
more 48. */
pos = random () & 511;
if (pos + align >= 511)
pos = 510 - align - (random () & 7);
len = random () & 511;
/* len for wcschr here isn't in bytes but it's number of wchar_t
symbols. */
if (pos >= len)
len = pos + (random () & 7);
if (len + align >= 512)
len = 511 - align - (random () & 7);
seek_char = random () & 255;
if (seek_char && pos == len)
{
if (pos)
--pos;
else
++len;
}
j = len + align + 64;
if (j > 512)
j = 512;
for (i = 0; i < j; i++)
{
if (i == pos + align)
p[i] = seek_char;
else if (i == len + align)
p[i] = 0;
else
{
p[i] = random () & 255;
if (((i > pos + align && i < len + align) || pos > len)
&& p[i] == seek_char)
p[i] = seek_char + 13;
if (i < len + align && !p[i])
{
p[i] = seek_char - 13;
if (!p[i])
p[i] = 140;
}
}
}
if (pos <= len)
result = (CHAR *) (p + pos + align);
else if (seek_char == 0)
result = (CHAR *) (p + len + align);
else
result = NULL;
FOR_EACH_IMPL (impl, 1)
if (CALL (impl, (CHAR *) (p + align), seek_char) != result)
{
error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %d, %zd, %zd) %p != %p, p %p",
n, impl->name, align, seek_char, len, pos,
CALL (impl, (CHAR *) (p + align), seek_char), result, p);
ret = 1;
}
}
}
int
test_main (void)
{
size_t i;
test_init ();
printf ("%20s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
for (i = 1; i < 8; ++i)
{
do_test (0, 16 << i, 2048, 23, SMALL_CHAR);
do_test (i, 16 << i, 2048, 23, SMALL_CHAR);
}
for (i = 1; i < 8; ++i)
{
do_test (i, 64, 256, 23, SMALL_CHAR);
do_test (i, 64, 256, 23, BIG_CHAR);
}
for (i = 0; i < 32; ++i)
{
do_test (0, i, i + 1, 23, SMALL_CHAR);
do_test (0, i, i + 1, 23, BIG_CHAR);
}
for (i = 1; i < 8; ++i)
{
do_test (0, 16 << i, 2048, 0, SMALL_CHAR);
do_test (i, 16 << i, 2048, 0, SMALL_CHAR);
}
for (i = 1; i < 8; ++i)
{
do_test (i, 64, 256, 0, SMALL_CHAR);
do_test (i, 64, 256, 0, BIG_CHAR);
}
for (i = 0; i < 32; ++i)
{
do_test (0, i, i + 1, 0, SMALL_CHAR);
do_test (0, i, i + 1, 0, BIG_CHAR);
}
do_random_tests ();
return ret;
}
#include <support/test-driver.c>
|
