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24fb0f88 | 1 | /* Test and measure strlen functions. |
d4697bc9 | 2 | Copyright (C) 1999-2014 Free Software Foundation, Inc. |
24fb0f88 UD |
3 | This file is part of the GNU C Library. |
4 | Written by Jakub Jelinek <jakub@redhat.com>, 1999. | |
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/>. */ | |
24fb0f88 UD |
19 | |
20 | #define TEST_MAIN | |
69f07e5f | 21 | #define TEST_NAME "strnlen" |
24fb0f88 UD |
22 | #include "test-string.h" |
23 | ||
24 | typedef size_t (*proto_t) (const char *, size_t); | |
25 | size_t simple_strnlen (const char *, size_t); | |
26 | ||
27 | IMPL (simple_strnlen, 0) | |
28 | IMPL (strnlen, 1) | |
29 | ||
30 | size_t | |
31 | simple_strnlen (const char *s, size_t maxlen) | |
32 | { | |
33 | size_t i; | |
34 | ||
35 | for (i = 0; i < maxlen && s[i]; ++i); | |
36 | return i; | |
37 | } | |
38 | ||
39 | static void | |
40 | do_one_test (impl_t *impl, const char *s, size_t maxlen, size_t exp_len) | |
41 | { | |
42 | size_t len = CALL (impl, s, maxlen); | |
43 | if (len != exp_len) | |
44 | { | |
45 | error (0, 0, "Wrong result in function %s %zd %zd", impl->name, | |
46 | len, exp_len); | |
47 | ret = 1; | |
48 | return; | |
49 | } | |
24fb0f88 UD |
50 | } |
51 | ||
52 | static void | |
53 | do_test (size_t align, size_t len, size_t maxlen, int max_char) | |
54 | { | |
55 | size_t i; | |
56 | ||
57 | align &= 7; | |
58 | if (align + len >= page_size) | |
59 | return; | |
60 | ||
61 | for (i = 0; i < len; ++i) | |
62 | buf1[align + i] = 1 + 7 * i % max_char; | |
63 | buf1[align + len] = 0; | |
64 | ||
24fb0f88 UD |
65 | FOR_EACH_IMPL (impl, 0) |
66 | do_one_test (impl, (char *) (buf1 + align), maxlen, MIN (len, maxlen)); | |
24fb0f88 UD |
67 | } |
68 | ||
69 | static void | |
70 | do_random_tests (void) | |
71 | { | |
72 | size_t i, j, n, align, len; | |
73 | unsigned char *p = buf1 + page_size - 512; | |
74 | ||
75 | for (n = 0; n < ITERATIONS; n++) | |
76 | { | |
77 | align = random () & 15; | |
78 | len = random () & 511; | |
79 | if (len + align > 510) | |
80 | len = 511 - align - (random () & 7); | |
81 | j = len + align + 64; | |
82 | if (j > 512) | |
83 | j = 512; | |
84 | ||
85 | for (i = 0; i < j; i++) | |
86 | { | |
87 | if (i == len + align) | |
88 | p[i] = 0; | |
89 | else | |
90 | { | |
91 | p[i] = random () & 255; | |
92 | if (i >= align && i < len + align && !p[i]) | |
93 | p[i] = (random () & 127) + 1; | |
94 | } | |
95 | } | |
96 | ||
97 | FOR_EACH_IMPL (impl, 1) | |
98 | { | |
99 | if (len > 0 | |
100 | && CALL (impl, (char *) (p + align), len - 1) != len - 1) | |
101 | { | |
102 | error (0, 0, "Iteration %zd (limited) - wrong result in function %s (%zd) %zd != %zd, p %p", | |
103 | n, impl->name, align, | |
104 | CALL (impl, (char *) (p + align), len - 1), len - 1, p); | |
105 | ret = 1; | |
106 | } | |
107 | if (CALL (impl, (char *) (p + align), len) != len) | |
108 | { | |
109 | error (0, 0, "Iteration %zd (exact) - wrong result in function %s (%zd) %zd != %zd, p %p", | |
110 | n, impl->name, align, | |
111 | CALL (impl, (char *) (p + align), len), len, p); | |
112 | ret = 1; | |
113 | } | |
114 | if (CALL (impl, (char *) (p + align), len + 1) != len) | |
115 | { | |
116 | error (0, 0, "Iteration %zd (long) - wrong result in function %s (%zd) %zd != %zd, p %p", | |
117 | n, impl->name, align, | |
118 | CALL (impl, (char *) (p + align), len + 1), len, p); | |
119 | ret = 1; | |
120 | } | |
121 | } | |
122 | } | |
123 | } | |
124 | ||
125 | int | |
126 | test_main (void) | |
127 | { | |
128 | size_t i; | |
129 | ||
130 | test_init (); | |
131 | ||
132 | printf ("%20s", ""); | |
133 | FOR_EACH_IMPL (impl, 0) | |
134 | printf ("\t%s", impl->name); | |
135 | putchar ('\n'); | |
136 | ||
137 | for (i = 1; i < 8; ++i) | |
138 | { | |
139 | do_test (0, i, i - 1, 127); | |
140 | do_test (0, i, i, 127); | |
141 | do_test (0, i, i + 1, 127); | |
142 | } | |
143 | ||
144 | for (i = 1; i < 8; ++i) | |
145 | { | |
146 | do_test (i, i, i - 1, 127); | |
147 | do_test (i, i, i, 127); | |
148 | do_test (i, i, i + 1, 127); | |
149 | } | |
150 | ||
151 | for (i = 2; i <= 10; ++i) | |
152 | { | |
153 | do_test (0, 1 << i, 5000, 127); | |
154 | do_test (1, 1 << i, 5000, 127); | |
155 | } | |
156 | ||
157 | for (i = 1; i < 8; ++i) | |
158 | do_test (0, i, 5000, 255); | |
159 | ||
160 | for (i = 1; i < 8; ++i) | |
161 | do_test (i, i, 5000, 255); | |
162 | ||
163 | for (i = 2; i <= 10; ++i) | |
164 | { | |
165 | do_test (0, 1 << i, 5000, 255); | |
166 | do_test (1, 1 << i, 5000, 255); | |
167 | } | |
168 | ||
169 | do_random_tests (); | |
170 | return ret; | |
171 | } | |
172 | ||
173 | #include "../test-skeleton.c" |