1 | /* Test and measure strpbrk functions. |
2 | Copyright (C) 1999-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
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. |
9 | |
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. |
14 | |
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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef WIDE |
20 | # define CHAR char |
21 | # define UCHAR unsigned char |
22 | # define STRLEN strlen |
23 | # define STRCHR strchr |
24 | # define BIG_CHAR CHAR_MAX |
25 | # define SMALL_CHAR 127 |
26 | #else |
27 | # include <wchar.h> |
28 | # define CHAR wchar_t |
29 | # define UCHAR wchar_t |
30 | # define STRLEN wcslen |
31 | # define STRCHR wcschr |
32 | # define BIG_CHAR WCHAR_MAX |
33 | # define SMALL_CHAR 1273 |
34 | #endif /* WIDE */ |
35 | |
36 | #ifndef STRPBRK_RESULT |
37 | # define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL) |
38 | # define RES_TYPE CHAR * |
39 | # define TEST_MAIN |
40 | # ifndef WIDE |
41 | # define TEST_NAME "strpbrk" |
42 | # else |
43 | # define TEST_NAME "wcspbrk" |
44 | # endif /* WIDE */ |
45 | # include "test-string.h" |
46 | |
47 | # ifndef WIDE |
48 | # define STRPBRK strpbrk |
49 | # define SIMPLE_STRPBRK simple_strpbrk |
50 | # else |
51 | # include <wchar.h> |
52 | # define STRPBRK wcspbrk |
53 | # define SIMPLE_STRPBRK simple_wcspbrk |
54 | # endif /* WIDE */ |
55 | |
56 | typedef CHAR *(*proto_t) (const CHAR *, const CHAR *); |
57 | |
58 | IMPL (STRPBRK, 1) |
59 | |
60 | /* Naive implementation to verify results. */ |
61 | CHAR * |
62 | SIMPLE_STRPBRK (const CHAR *s, const CHAR *rej) |
63 | { |
64 | const CHAR *r; |
65 | CHAR c; |
66 | |
67 | while ((c = *s++) != '\0') |
68 | for (r = rej; *r != '\0'; ++r) |
69 | if (*r == c) |
70 | return (CHAR *) s - 1; |
71 | return NULL; |
72 | } |
73 | |
74 | #endif /* !STRPBRK_RESULT */ |
75 | |
76 | static void |
77 | do_one_test (impl_t *impl, const CHAR *s, const CHAR *rej, RES_TYPE exp_res) |
78 | { |
79 | RES_TYPE res = CALL (impl, s, rej); |
80 | if (res != exp_res) |
81 | { |
82 | error (status: 0, errnum: 0, format: "Wrong result in function %s %p %p" , impl->name, |
83 | (void *) res, (void *) exp_res); |
84 | ret = 1; |
85 | return; |
86 | } |
87 | } |
88 | |
89 | static void |
90 | do_test (size_t align, size_t pos, size_t len) |
91 | { |
92 | size_t i; |
93 | int c; |
94 | RES_TYPE result; |
95 | CHAR *rej, *s; |
96 | |
97 | align &= 7; |
98 | if ((align + pos + 10) * sizeof (CHAR) >= page_size || len > 240) |
99 | return; |
100 | |
101 | rej = (CHAR *) (buf2) + (random () & 255); |
102 | s = (CHAR *) (buf1) + align; |
103 | |
104 | for (i = 0; i < len; ++i) |
105 | { |
106 | rej[i] = random () & BIG_CHAR; |
107 | if (!rej[i]) |
108 | rej[i] = random () & BIG_CHAR; |
109 | if (!rej[i]) |
110 | rej[i] = 1 + (random () & SMALL_CHAR); |
111 | } |
112 | rej[len] = '\0'; |
113 | for (c = 1; c <= BIG_CHAR; ++c) |
114 | if (STRCHR (rej, c) == NULL) |
115 | break; |
116 | |
117 | for (i = 0; i < pos; ++i) |
118 | { |
119 | s[i] = random () & BIG_CHAR; |
120 | if (STRCHR (rej, s[i])) |
121 | { |
122 | s[i] = random () & BIG_CHAR; |
123 | if (STRCHR (rej, s[i])) |
124 | s[i] = c; |
125 | } |
126 | } |
127 | s[pos] = rej[random () % (len + 1)]; |
128 | if (s[pos]) |
129 | { |
130 | for (i = pos + 1; i < pos + 10; ++i) |
131 | s[i] = random () & BIG_CHAR; |
132 | s[i] = '\0'; |
133 | } |
134 | result = STRPBRK_RESULT (s, pos); |
135 | |
136 | FOR_EACH_IMPL (impl, 0) |
137 | do_one_test (impl, s, rej, exp_res: result); |
138 | } |
139 | |
140 | static void |
141 | do_random_tests (void) |
142 | { |
143 | size_t i, j, n, align, pos, len, rlen; |
144 | RES_TYPE result; |
145 | int c; |
146 | UCHAR *p = (UCHAR *) (buf1 + page_size) - 512; |
147 | UCHAR *rej; |
148 | |
149 | for (n = 0; n < ITERATIONS; n++) |
150 | { |
151 | align = random () & 15; |
152 | pos = random () & 511; |
153 | if (pos + align >= 511) |
154 | pos = 510 - align - (random () & 7); |
155 | len = random () & 511; |
156 | if (pos >= len && (random () & 1)) |
157 | len = pos + 1 + (random () & 7); |
158 | if (len + align >= 512) |
159 | len = 511 - align - (random () & 7); |
160 | if (random () & 1) |
161 | rlen = random () & 63; |
162 | else |
163 | rlen = random () & 15; |
164 | rej = (UCHAR *) (buf2 + page_size) - rlen - 1 - (random () & 7); |
165 | for (i = 0; i < rlen; ++i) |
166 | { |
167 | rej[i] = random () & BIG_CHAR; |
168 | if (!rej[i]) |
169 | rej[i] = random () & BIG_CHAR; |
170 | if (!rej[i]) |
171 | rej[i] = 1 + (random () & SMALL_CHAR); |
172 | } |
173 | rej[i] = '\0'; |
174 | for (c = 1; c <= BIG_CHAR; ++c) |
175 | if (STRCHR ((CHAR *) rej, c) == NULL) |
176 | break; |
177 | j = (pos > len ? pos : len) + align + 64; |
178 | if (j > 512) |
179 | j = 512; |
180 | |
181 | for (i = 0; i < j; i++) |
182 | { |
183 | if (i == len + align) |
184 | p[i] = '\0'; |
185 | else if (i == pos + align) |
186 | p[i] = rej[random () % (rlen + 1)]; |
187 | else if (i < align || i > pos + align) |
188 | p[i] = random () & BIG_CHAR; |
189 | else |
190 | { |
191 | p[i] = random () & BIG_CHAR; |
192 | if (STRCHR ((CHAR *) rej, p[i])) |
193 | { |
194 | p[i] = random () & BIG_CHAR; |
195 | if (STRCHR ((CHAR *) rej, p[i])) |
196 | p[i] = c; |
197 | } |
198 | } |
199 | } |
200 | |
201 | result = STRPBRK_RESULT ((CHAR *) (p + align), pos < len ? pos : len); |
202 | |
203 | FOR_EACH_IMPL (impl, 1) |
204 | if (CALL (impl, (CHAR *) (p + align), (CHAR *) rej) != result) |
205 | { |
206 | error (status: 0, errnum: 0, format: "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %p != %p" , |
207 | n, impl->name, align, rej, rlen, pos, len, |
208 | (void *) CALL (impl, (CHAR *) (p + align), (CHAR *) rej), |
209 | (void *) result); |
210 | ret = 1; |
211 | } |
212 | } |
213 | } |
214 | |
215 | int |
216 | test_main (void) |
217 | { |
218 | size_t i; |
219 | |
220 | test_init (); |
221 | |
222 | printf (format: "%32s" , "" ); |
223 | FOR_EACH_IMPL (impl, 0) |
224 | printf (format: "\t%s" , impl->name); |
225 | putchar (c: '\n'); |
226 | |
227 | for (i = 0; i < 32; ++i) |
228 | { |
229 | do_test (align: 0, pos: 512, len: i); |
230 | do_test (align: i, pos: 512, len: i); |
231 | } |
232 | |
233 | for (i = 1; i < 8; ++i) |
234 | { |
235 | do_test (align: 0, pos: 16 << i, len: 4); |
236 | do_test (align: i, pos: 16 << i, len: 4); |
237 | } |
238 | |
239 | for (i = 1; i < 8; ++i) |
240 | do_test (align: i, pos: 64, len: 10); |
241 | |
242 | for (i = 0; i < 64; ++i) |
243 | do_test (align: 0, pos: i, len: 6); |
244 | |
245 | do_random_tests (); |
246 | return ret; |
247 | } |
248 | |
249 | #include <support/test-driver.c> |
250 | |