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dbc676d4 UD |
1 | /* Test and measure strstr 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 | |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
dbc676d4 UD |
19 | |
20 | #define TEST_MAIN | |
21 | #include "test-string.h" | |
22 | ||
23 | ||
24 | #define STRSTR simple_strstr | |
25 | #include "strstr.c" | |
26 | ||
27 | ||
28 | static char * | |
29 | stupid_strstr (const char *s1, const char *s2) | |
30 | { | |
31 | ssize_t s1len = strlen (s1); | |
32 | ssize_t s2len = strlen (s2); | |
33 | ||
34 | if (s2len > s1len) | |
35 | return NULL; | |
36 | ||
37 | for (ssize_t i = 0; i <= s1len - s2len; ++i) | |
38 | { | |
39 | size_t j; | |
40 | for (j = 0; j < s2len; ++j) | |
41 | if (s1[i + j] != s2[j]) | |
42 | break; | |
43 | if (j == s2len) | |
44 | return (char *) s1 + i; | |
45 | } | |
46 | ||
47 | return NULL; | |
48 | } | |
49 | ||
50 | ||
51 | typedef char *(*proto_t) (const char *, const char *); | |
52 | ||
53 | IMPL (stupid_strstr, 0) | |
54 | IMPL (simple_strstr, 0) | |
55 | IMPL (strstr, 1) | |
56 | ||
57 | ||
03759f47 L |
58 | static int |
59 | check_result (impl_t *impl, const char *s1, const char *s2, | |
60 | char *exp_result) | |
dbc676d4 UD |
61 | { |
62 | char *result = CALL (impl, s1, s2); | |
63 | if (result != exp_result) | |
64 | { | |
65 | error (0, 0, "Wrong result in function %s %s %s", impl->name, | |
66 | result, exp_result); | |
67 | ret = 1; | |
03759f47 | 68 | return -1; |
dbc676d4 UD |
69 | } |
70 | ||
03759f47 L |
71 | return 0; |
72 | } | |
73 | ||
74 | static void | |
75 | do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result) | |
76 | { | |
77 | if (check_result (impl, s1, s2, exp_result) < 0) | |
78 | return; | |
79 | ||
dbc676d4 UD |
80 | if (HP_TIMING_AVAIL) |
81 | { | |
82 | hp_timing_t start __attribute ((unused)); | |
83 | hp_timing_t stop __attribute ((unused)); | |
84 | hp_timing_t best_time = ~(hp_timing_t) 0; | |
85 | size_t i; | |
86 | ||
87 | for (i = 0; i < 32; ++i) | |
88 | { | |
89 | HP_TIMING_NOW (start); | |
90 | CALL (impl, s1, s2); | |
91 | HP_TIMING_NOW (stop); | |
92 | HP_TIMING_BEST (best_time, start, stop); | |
93 | } | |
94 | ||
95 | printf ("\t%zd", (size_t) best_time); | |
96 | } | |
97 | } | |
98 | ||
99 | ||
100 | static void | |
101 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, | |
102 | int fail) | |
103 | { | |
104 | char *s1 = (char *) (buf1 + align1); | |
105 | char *s2 = (char *) (buf2 + align2); | |
106 | ||
107 | static const char d[] = "1234567890abcdef"; | |
108 | #define dl (sizeof (d) - 1) | |
109 | char *ss2 = s2; | |
110 | for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) | |
111 | { | |
112 | size_t t = l > dl ? dl : l; | |
113 | ss2 = mempcpy (ss2, d, t); | |
114 | } | |
115 | s2[len2] = '\0'; | |
116 | ||
117 | if (fail) | |
118 | { | |
119 | char *ss1 = s1; | |
120 | for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) | |
121 | { | |
122 | size_t t = l > dl ? dl : l; | |
123 | memcpy (ss1, d, t); | |
124 | ++ss1[len2 > 7 ? 7 : len2 - 1]; | |
125 | ss1 += t; | |
126 | } | |
127 | } | |
128 | else | |
129 | { | |
130 | memset (s1, '0', len1); | |
131 | memcpy (s1 + len1 - len2, s2, len2); | |
132 | } | |
133 | s1[len1] = '\0'; | |
134 | ||
135 | if (HP_TIMING_AVAIL) | |
136 | printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:", | |
137 | len1, len2, align1, align2, fail ? "fail" : "found"); | |
138 | ||
139 | FOR_EACH_IMPL (impl, 0) | |
140 | do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2); | |
141 | ||
142 | if (HP_TIMING_AVAIL) | |
143 | putchar ('\n'); | |
144 | } | |
145 | ||
03759f47 L |
146 | static void |
147 | check1 (void) | |
148 | { | |
149 | const char s1[] = | |
150 | "F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD_C3_A7_20_EF_BF_BD"; | |
151 | const char s2[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"; | |
152 | char *exp_result; | |
153 | ||
154 | exp_result = stupid_strstr (s1, s2); | |
155 | FOR_EACH_IMPL (impl, 0) | |
156 | check_result (impl, s1, s2, exp_result); | |
157 | } | |
dbc676d4 UD |
158 | |
159 | static int | |
160 | test_main (void) | |
161 | { | |
162 | test_init (); | |
163 | ||
03759f47 L |
164 | check1 (); |
165 | ||
dbc676d4 UD |
166 | printf ("%23s", ""); |
167 | FOR_EACH_IMPL (impl, 0) | |
168 | printf ("\t%s", impl->name); | |
169 | putchar ('\n'); | |
170 | ||
171 | for (size_t klen = 2; klen < 32; ++klen) | |
172 | for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) | |
173 | { | |
174 | do_test (0, 0, hlen, klen, 0); | |
175 | do_test (0, 0, hlen, klen, 1); | |
176 | do_test (0, 3, hlen, klen, 0); | |
177 | do_test (0, 3, hlen, klen, 1); | |
178 | do_test (0, 9, hlen, klen, 0); | |
179 | do_test (0, 9, hlen, klen, 1); | |
180 | do_test (0, 15, hlen, klen, 0); | |
181 | do_test (0, 15, hlen, klen, 1); | |
182 | ||
183 | do_test (3, 0, hlen, klen, 0); | |
184 | do_test (3, 0, hlen, klen, 1); | |
185 | do_test (3, 3, hlen, klen, 0); | |
186 | do_test (3, 3, hlen, klen, 1); | |
187 | do_test (3, 9, hlen, klen, 0); | |
188 | do_test (3, 9, hlen, klen, 1); | |
189 | do_test (3, 15, hlen, klen, 0); | |
190 | do_test (3, 15, hlen, klen, 1); | |
191 | ||
192 | do_test (9, 0, hlen, klen, 0); | |
193 | do_test (9, 0, hlen, klen, 1); | |
194 | do_test (9, 3, hlen, klen, 0); | |
195 | do_test (9, 3, hlen, klen, 1); | |
196 | do_test (9, 9, hlen, klen, 0); | |
197 | do_test (9, 9, hlen, klen, 1); | |
198 | do_test (9, 15, hlen, klen, 0); | |
199 | do_test (9, 15, hlen, klen, 1); | |
200 | ||
201 | do_test (15, 0, hlen, klen, 0); | |
202 | do_test (15, 0, hlen, klen, 1); | |
203 | do_test (15, 3, hlen, klen, 0); | |
204 | do_test (15, 3, hlen, klen, 1); | |
205 | do_test (15, 9, hlen, klen, 0); | |
206 | do_test (15, 9, hlen, klen, 1); | |
207 | do_test (15, 15, hlen, klen, 0); | |
208 | do_test (15, 15, hlen, klen, 1); | |
209 | } | |
210 | ||
211 | do_test (0, 0, page_size - 1, 16, 0); | |
212 | do_test (0, 0, page_size - 1, 16, 1); | |
213 | ||
214 | return ret; | |
215 | } | |
216 | ||
217 | #include "../test-skeleton.c" |