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
|
/* Measure strspn functions.
Copyright (C) 2013-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<http://www.gnu.org/licenses/>. */
#define TEST_MAIN
#ifndef WIDE
# define TEST_NAME "strspn"
#else
# define TEST_NAME "wcsspn"
#endif /* WIDE */
#include "bench-string.h"
#define BIG_CHAR MAX_CHAR
#ifndef WIDE
# define SIMPLE_STRSPN simple_strspn
# define SMALL_CHAR 127
#else
# define SIMPLE_STRSPN simple_wcsspn
# define SMALL_CHAR 1273
#endif /* WIDE */
typedef size_t (*proto_t) (const CHAR *, const CHAR *);
size_t SIMPLE_STRSPN (const CHAR *, const CHAR *);
IMPL (SIMPLE_STRSPN, 0)
IMPL (STRSPN, 1)
size_t
SIMPLE_STRSPN (const CHAR *s, const CHAR *acc)
{
const CHAR *r, *str = s;
CHAR c;
while ((c = *s++) != '\0')
{
for (r = acc; *r != '\0'; ++r)
if (*r == c)
break;
if (*r == '\0')
return s - str - 1;
}
return s - str - 1;
}
static void
do_one_test (impl_t *impl, const CHAR *s, const CHAR *acc, size_t exp_res)
{
size_t res = CALL (impl, s, acc), i, iters = INNER_LOOP_ITERS_MEDIUM;
timing_t start, stop, cur;
if (res != exp_res)
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,
(void *) res, (void *) exp_res);
ret = 1;
return;
}
TIMING_NOW (start);
for (i = 0; i < iters; ++i)
{
CALL (impl, s, acc);
}
TIMING_NOW (stop);
TIMING_DIFF (cur, start, stop);
TIMING_PRINT_MEAN ((double) cur, (double) iters);
}
static void
do_test (size_t align, size_t pos, size_t len)
{
size_t i;
CHAR *acc, *s;
align &= 7;
if ((align + pos + 10) * sizeof (CHAR) >= page_size || len > 240 || ! len)
return;
acc = (CHAR *) (buf2) + (random () & 255);
s = (CHAR *) (buf1) + align;
for (i = 0; i < len; ++i)
{
acc[i] = random () & BIG_CHAR;
if (!acc[i])
acc[i] = random () & BIG_CHAR;
if (!acc[i])
acc[i] = 1 + (random () & SMALL_CHAR);
}
acc[len] = '\0';
for (i = 0; i < pos; ++i)
s[i] = acc[random () % len];
s[pos] = random () & BIG_CHAR;
if (STRCHR (acc, s[pos]))
s[pos] = '\0';
else
{
for (i = pos + 1; i < pos + 10; ++i)
s[i] = random () & BIG_CHAR;
s[i] = '\0';
}
printf ("Length %4zd, alignment %2zd, acc len %2zd:", pos, align, len);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, s, acc, pos);
putchar ('\n');
}
int
test_main (void)
{
size_t i;
test_init ();
printf ("%32s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
for (i = 0; i < 32; ++i)
{
do_test (0, 512, i);
do_test (i, 512, i);
}
for (i = 1; i < 8; ++i)
{
do_test (0, 16 << i, 4);
do_test (i, 16 << i, 4);
}
for (i = 1; i < 8; ++i)
do_test (i, 64, 10);
for (i = 0; i < 64; ++i)
do_test (0, i, 6);
return ret;
}
#include <support/test-driver.c>
|
