1 /* Measure strcasestr functions.
2 Copyright (C) 2013-2014 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 "strcasestr"
21 #include "bench-string.h"
24 #define STRCASESTR simple_strcasestr
26 #define __strncasecmp strncasecmp
27 #include "../string/strcasestr.c"
31 stupid_strcasestr (const char *s1, const char *s2)
33 ssize_t s1len = strlen (s1);
34 ssize_t s2len = strlen (s2);
39 for (ssize_t i = 0; i <= s1len - s2len; ++i)
42 for (j = 0; j < s2len; ++j)
43 if (tolower (s1[i + j]) != tolower (s2[j]))
46 return (char *) s1 + i;
53 typedef char *(*proto_t) (const char *, const char *);
55 IMPL (stupid_strcasestr, 0)
56 IMPL (simple_strcasestr, 0)
61 do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result)
63 size_t i, iters = INNER_LOOP_ITERS;
64 timing_t start, stop, cur;
67 for (i = 0; i < iters; ++i)
73 TIMING_DIFF (cur, start, stop);
75 TIMING_PRINT_MEAN ((double) cur, (double) iters);
80 do_test (size_t align1, size_t align2, size_t len1, size_t len2,
83 char *s1 = (char *) (buf1 + align1);
84 char *s2 = (char *) (buf2 + align2);
86 static const char d[] = "1234567890abcxyz";
87 #define dl (sizeof (d) - 1)
89 for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0)
91 size_t t = l > dl ? dl : l;
92 ss2 = mempcpy (ss2, d, t);
99 for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0)
101 size_t t = l > dl ? dl : l;
103 ++ss1[len2 > 7 ? 7 : len2 - 1];
109 memset (s1, '0', len1);
110 for (size_t i = 0; i < len2; ++i)
111 s1[len1 - len2 + i] = toupper (s2[i]);
115 printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:",
116 len1, len2, align1, align2, fail ? "fail" : "found");
118 FOR_EACH_IMPL (impl, 0)
119 do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2);
130 FOR_EACH_IMPL (impl, 0)
131 printf ("\t%s", impl->name);
134 for (size_t klen = 2; klen < 32; ++klen)
135 for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen)
137 do_test (0, 0, hlen, klen, 0);
138 do_test (0, 0, hlen, klen, 1);
139 do_test (0, 3, hlen, klen, 0);
140 do_test (0, 3, hlen, klen, 1);
141 do_test (0, 9, hlen, klen, 0);
142 do_test (0, 9, hlen, klen, 1);
143 do_test (0, 15, hlen, klen, 0);
144 do_test (0, 15, hlen, klen, 1);
146 do_test (3, 0, hlen, klen, 0);
147 do_test (3, 0, hlen, klen, 1);
148 do_test (3, 3, hlen, klen, 0);
149 do_test (3, 3, hlen, klen, 1);
150 do_test (3, 9, hlen, klen, 0);
151 do_test (3, 9, hlen, klen, 1);
152 do_test (3, 15, hlen, klen, 0);
153 do_test (3, 15, hlen, klen, 1);
155 do_test (9, 0, hlen, klen, 0);
156 do_test (9, 0, hlen, klen, 1);
157 do_test (9, 3, hlen, klen, 0);
158 do_test (9, 3, hlen, klen, 1);
159 do_test (9, 9, hlen, klen, 0);
160 do_test (9, 9, hlen, klen, 1);
161 do_test (9, 15, hlen, klen, 0);
162 do_test (9, 15, hlen, klen, 1);
164 do_test (15, 0, hlen, klen, 0);
165 do_test (15, 0, hlen, klen, 1);
166 do_test (15, 3, hlen, klen, 0);
167 do_test (15, 3, hlen, klen, 1);
168 do_test (15, 9, hlen, klen, 0);
169 do_test (15, 9, hlen, klen, 1);
170 do_test (15, 15, hlen, klen, 0);
171 do_test (15, 15, hlen, klen, 1);
174 do_test (0, 0, page_size - 1, 16, 0);
175 do_test (0, 0, page_size - 1, 16, 1);
180 #include "../test-skeleton.c"