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1 | /* Test and measure strcasestr functions. |
2 | Copyright (C) 2010 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Written by Ulrich Drepper <drepper@redhat.com>, 2010. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
20 | ||
21 | #define TEST_MAIN | |
22 | #include "test-string.h" | |
23 | ||
24 | ||
25 | #define STRCASESTR simple_strcasestr | |
26 | #define NO_ALIAS | |
27 | #define __strncasecmp strncasecmp | |
28 | #include "strcasestr.c" | |
29 | ||
30 | ||
31 | static char * | |
32 | stupid_strcasestr (const char *s1, const char *s2) | |
33 | { | |
34 | ssize_t s1len = strlen (s1); | |
35 | ssize_t s2len = strlen (s2); | |
36 | ||
37 | if (s2len > s1len) | |
38 | return NULL; | |
39 | ||
40 | for (ssize_t i = 0; i <= s1len - s2len; ++i) | |
41 | { | |
42 | size_t j; | |
43 | for (j = 0; j < s2len; ++j) | |
44 | if (tolower (s1[i + j]) != tolower (s2[j])) | |
45 | break; | |
46 | if (j == s2len) | |
47 | return (char *) s1 + i; | |
48 | } | |
49 | ||
50 | return NULL; | |
51 | } | |
52 | ||
53 | ||
54 | typedef char *(*proto_t) (const char *, const char *); | |
55 | ||
56 | IMPL (stupid_strcasestr, 0) | |
57 | IMPL (simple_strcasestr, 0) | |
58 | IMPL (strcasestr, 1) | |
59 | ||
60 | ||
61 | static void | |
62 | do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result) | |
63 | { | |
64 | char *result = CALL (impl, s1, s2); | |
65 | if (result != exp_result) | |
66 | { | |
67 | error (0, 0, "Wrong result in function %s %s %s", impl->name, | |
68 | result, exp_result); | |
69 | ret = 1; | |
70 | return; | |
71 | } | |
72 | ||
73 | if (HP_TIMING_AVAIL) | |
74 | { | |
75 | hp_timing_t start __attribute ((unused)); | |
76 | hp_timing_t stop __attribute ((unused)); | |
77 | hp_timing_t best_time = ~(hp_timing_t) 0; | |
78 | size_t i; | |
79 | ||
80 | for (i = 0; i < 32; ++i) | |
81 | { | |
82 | HP_TIMING_NOW (start); | |
83 | CALL (impl, s1, s2); | |
84 | HP_TIMING_NOW (stop); | |
85 | HP_TIMING_BEST (best_time, start, stop); | |
86 | } | |
87 | ||
88 | printf ("\t%zd", (size_t) best_time); | |
89 | } | |
90 | } | |
91 | ||
92 | ||
93 | static void | |
94 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, | |
95 | int fail) | |
96 | { | |
97 | char *s1 = (char *) (buf1 + align1); | |
98 | char *s2 = (char *) (buf2 + align2); | |
99 | ||
100 | static const char d[] = "1234567890abcdef"; | |
101 | #define dl (sizeof (d) - 1) | |
102 | char *ss2 = s2; | |
103 | for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) | |
104 | { | |
105 | size_t t = l > dl ? dl : l; | |
106 | ss2 = mempcpy (ss2, d, t); | |
107 | } | |
108 | s2[len2] = '\0'; | |
109 | ||
110 | if (fail) | |
111 | { | |
112 | char *ss1 = s1; | |
113 | for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) | |
114 | { | |
115 | size_t t = l > dl ? dl : l; | |
116 | memcpy (ss1, d, t); | |
117 | ++ss1[len2 > 7 ? 7 : len2 - 1]; | |
118 | ss1 += t; | |
119 | } | |
120 | } | |
121 | else | |
122 | { | |
123 | memset (s1, '0', len1); | |
124 | for (size_t i = 0; i < len2; ++i) | |
125 | s1[len1 - len2 + i] = toupper (s2[i]); | |
126 | } | |
127 | s1[len1] = '\0'; | |
128 | ||
129 | if (HP_TIMING_AVAIL) | |
130 | printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:", | |
131 | len1, len2, align1, align2, fail ? "fail" : "found"); | |
132 | ||
133 | FOR_EACH_IMPL (impl, 0) | |
134 | do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2); | |
135 | ||
136 | if (HP_TIMING_AVAIL) | |
137 | putchar ('\n'); | |
138 | } | |
139 | ||
140 | ||
141 | static int | |
142 | test_main (void) | |
143 | { | |
144 | test_init (); | |
145 | ||
146 | printf ("%23s", ""); | |
147 | FOR_EACH_IMPL (impl, 0) | |
148 | printf ("\t%s", impl->name); | |
149 | putchar ('\n'); | |
150 | ||
151 | for (size_t klen = 2; klen < 32; ++klen) | |
152 | for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) | |
153 | { | |
154 | do_test (0, 0, hlen, klen, 0); | |
155 | do_test (0, 0, hlen, klen, 1); | |
156 | do_test (0, 3, hlen, klen, 0); | |
157 | do_test (0, 3, hlen, klen, 1); | |
158 | do_test (0, 9, hlen, klen, 0); | |
159 | do_test (0, 9, hlen, klen, 1); | |
160 | do_test (0, 15, hlen, klen, 0); | |
161 | do_test (0, 15, hlen, klen, 1); | |
162 | ||
163 | do_test (3, 0, hlen, klen, 0); | |
164 | do_test (3, 0, hlen, klen, 1); | |
165 | do_test (3, 3, hlen, klen, 0); | |
166 | do_test (3, 3, hlen, klen, 1); | |
167 | do_test (3, 9, hlen, klen, 0); | |
168 | do_test (3, 9, hlen, klen, 1); | |
169 | do_test (3, 15, hlen, klen, 0); | |
170 | do_test (3, 15, hlen, klen, 1); | |
171 | ||
172 | do_test (9, 0, hlen, klen, 0); | |
173 | do_test (9, 0, hlen, klen, 1); | |
174 | do_test (9, 3, hlen, klen, 0); | |
175 | do_test (9, 3, hlen, klen, 1); | |
176 | do_test (9, 9, hlen, klen, 0); | |
177 | do_test (9, 9, hlen, klen, 1); | |
178 | do_test (9, 15, hlen, klen, 0); | |
179 | do_test (9, 15, hlen, klen, 1); | |
180 | ||
181 | do_test (15, 0, hlen, klen, 0); | |
182 | do_test (15, 0, hlen, klen, 1); | |
183 | do_test (15, 3, hlen, klen, 0); | |
184 | do_test (15, 3, hlen, klen, 1); | |
185 | do_test (15, 9, hlen, klen, 0); | |
186 | do_test (15, 9, hlen, klen, 1); | |
187 | do_test (15, 15, hlen, klen, 0); | |
188 | do_test (15, 15, hlen, klen, 1); | |
189 | } | |
190 | ||
191 | do_test (0, 0, page_size - 1, 16, 0); | |
192 | do_test (0, 0, page_size - 1, 16, 1); | |
193 | ||
194 | return ret; | |
195 | } | |
196 | ||
197 | #include "../test-skeleton.c" |