1 /* Measure strspn 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/>. */
20 #define TEST_NAME "strspn"
21 #include "bench-string.h"
23 typedef size_t (*proto_t) (const char *, const char *);
24 size_t simple_strspn (const char *, const char *);
25 size_t stupid_strspn (const char *, const char *);
27 IMPL (stupid_strspn, 0)
28 IMPL (simple_strspn, 0)
32 simple_strspn (const char *s, const char *acc)
34 const char *r, *str = s;
37 while ((c = *s++) != '\0')
39 for (r = acc; *r != '\0'; ++r)
49 stupid_strspn (const char *s, const char *acc)
51 size_t ns = strlen (s), nacc = strlen (acc);
54 for (i = 0; i < ns; ++i)
56 for (j = 0; j < nacc; ++j)
66 do_one_test (impl_t *impl, const char *s, const char *acc, size_t exp_res)
68 size_t res = CALL (impl, s, acc), i, iters = INNER_LOOP_ITERS;
69 timing_t start, stop, cur;
73 error (0, 0, "Wrong result in function %s %p %p", impl->name,
74 (void *) res, (void *) exp_res);
80 for (i = 0; i < iters; ++i)
86 TIMING_DIFF (cur, start, stop);
88 TIMING_PRINT_MEAN ((double) cur, (double) iters);
92 do_test (size_t align, size_t pos, size_t len)
98 if (align + pos + 10 >= page_size || len > 240 || ! len)
101 acc = (char *) (buf2 + (random () & 255));
102 s = (char *) (buf1 + align);
104 for (i = 0; i < len; ++i)
106 acc[i] = random () & 255;
108 acc[i] = random () & 255;
110 acc[i] = 1 + (random () & 127);
114 for (i = 0; i < pos; ++i)
115 s[i] = acc[random () % len];
116 s[pos] = random () & 255;
117 if (strchr (acc, s[pos]))
121 for (i = pos + 1; i < pos + 10; ++i)
122 s[i] = random () & 255;
126 printf ("Length %4zd, alignment %2zd, acc len %2zd:", pos, align, len);
128 FOR_EACH_IMPL (impl, 0)
129 do_one_test (impl, s, acc, pos);
142 FOR_EACH_IMPL (impl, 0)
143 printf ("\t%s", impl->name);
146 for (i = 0; i < 32; ++i)
152 for (i = 1; i < 8; ++i)
154 do_test (0, 16 << i, 4);
155 do_test (i, 16 << i, 4);
158 for (i = 1; i < 8; ++i)
161 for (i = 0; i < 64; ++i)
167 #include "../test-skeleton.c"