1 /* Measure strpbrk functions.
2 Copyright (C) 2013-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #ifndef STRPBRK_RESULT
20 # define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL)
21 # define RES_TYPE char *
23 # define TEST_NAME "strpbrk"
24 # include "bench-string.h"
26 typedef char *(*proto_t) (const char *, const char *);
27 char *simple_strpbrk (const char *, const char *);
28 char *stupid_strpbrk (const char *, const char *);
30 IMPL (stupid_strpbrk, 0)
31 IMPL (simple_strpbrk, 0)
35 simple_strpbrk (const char *s, const char *rej)
40 while ((c = *s++) != '\0')
41 for (r = rej; *r != '\0'; ++r)
43 return (char *) s - 1;
48 stupid_strpbrk (const char *s, const char *rej)
50 size_t ns = strlen (s), nrej = strlen (rej);
53 for (i = 0; i < ns; ++i)
54 for (j = 0; j < nrej; ++j)
56 return (char *) s + i;
62 do_one_test (impl_t *impl, const char *s, const char *rej, RES_TYPE exp_res)
64 RES_TYPE res = CALL (impl, s, rej);
65 size_t i, iters = INNER_LOOP_ITERS;
66 timing_t start, stop, cur;
70 error (0, 0, "Wrong result in function %s %p %p", impl->name,
71 (void *) res, (void *) exp_res);
77 for (i = 0; i < iters; ++i)
83 TIMING_DIFF (cur, start, stop);
85 TIMING_PRINT_MEAN ((double) cur, (double) iters);
89 do_test (size_t align, size_t pos, size_t len)
97 if (align + pos + 10 >= page_size || len > 240)
100 rej = (char *) (buf2 + (random () & 255));
101 s = (char *) (buf1 + align);
103 for (i = 0; i < len; ++i)
105 rej[i] = random () & 255;
107 rej[i] = random () & 255;
109 rej[i] = 1 + (random () & 127);
112 for (c = 1; c <= 255; ++c)
113 if (strchr (rej, c) == NULL)
116 for (i = 0; i < pos; ++i)
118 s[i] = random () & 255;
119 if (strchr (rej, s[i]))
121 s[i] = random () & 255;
122 if (strchr (rej, s[i]))
126 s[pos] = rej[random () % (len + 1)];
129 for (i = pos + 1; i < pos + 10; ++i)
130 s[i] = random () & 255;
133 result = STRPBRK_RESULT (s, pos);
135 printf ("Length %4zd, alignment %2zd, rej len %2zd:", pos, align, len);
137 FOR_EACH_IMPL (impl, 0)
138 do_one_test (impl, s, rej, result);
151 FOR_EACH_IMPL (impl, 0)
152 printf ("\t%s", impl->name);
155 for (i = 0; i < 32; ++i)
161 for (i = 1; i < 8; ++i)
163 do_test (0, 16 << i, 4);
164 do_test (i, 16 << i, 4);
167 for (i = 1; i < 8; ++i)
170 for (i = 0; i < 64; ++i)
176 #include "../test-skeleton.c"