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[glibc/history.git] / string / test-strpbrk.c
blobf3ed2080bc9e5f70b3bcd2508c8e30b1728ab6bd
1 /* Test and measure strpbrk functions.
2 Copyright (C) 1999, 2002, 2003, 2005 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Jakub Jelinek <jakub@redhat.com>, 1999.
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.
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.
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. */
21 #ifndef STRPBRK_RESULT
22 # define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL)
23 # define RES_TYPE char *
24 # define TEST_MAIN
25 # include "test-string.h"
27 typedef char *(*proto_t) (const char *, const char *);
28 char *simple_strpbrk (const char *, const char *);
29 char *stupid_strpbrk (const char *, const char *);
31 IMPL (stupid_strpbrk, 0)
32 IMPL (simple_strpbrk, 0)
33 IMPL (strpbrk, 1)
35 char *
36 simple_strpbrk (const char *s, const char *rej)
38 const char *r;
39 char c;
41 while ((c = *s++) != '\0')
42 for (r = rej; *r != '\0'; ++r)
43 if (*r == c)
44 return (char *) s - 1;
45 return NULL;
48 char *
49 stupid_strpbrk (const char *s, const char *rej)
51 size_t ns = strlen (s), nrej = strlen (rej);
52 size_t i, j;
54 for (i = 0; i < ns; ++i)
55 for (j = 0; j < nrej; ++j)
56 if (s[i] == rej[j])
57 return (char *) s + i;
58 return NULL;
60 #endif
62 static void
63 do_one_test (impl_t *impl, const char *s, const char *rej, RES_TYPE exp_res)
65 RES_TYPE res = CALL (impl, s, rej);
66 if (res != exp_res)
68 error (0, 0, "Wrong result in function %s %p %p", impl->name,
69 (void *) res, (void *) exp_res);
70 ret = 1;
71 return;
74 if (HP_TIMING_AVAIL)
76 hp_timing_t start __attribute ((unused));
77 hp_timing_t stop __attribute ((unused));
78 hp_timing_t best_time = ~ (hp_timing_t) 0;
79 size_t i;
81 for (i = 0; i < 32; ++i)
83 HP_TIMING_NOW (start);
84 CALL (impl, s, rej);
85 HP_TIMING_NOW (stop);
86 HP_TIMING_BEST (best_time, start, stop);
89 printf ("\t%zd", (size_t) best_time);
93 static void
94 do_test (size_t align, size_t pos, size_t len)
96 size_t i;
97 int c;
98 RES_TYPE result;
99 char *rej, *s;
101 align &= 7;
102 if (align + pos + 10 >= page_size || len > 240)
103 return;
105 rej = (char *) (buf2 + (random () & 255));
106 s = (char *) (buf1 + align);
108 for (i = 0; i < len; ++i)
110 rej[i] = random () & 255;
111 if (!rej[i])
112 rej[i] = random () & 255;
113 if (!rej[i])
114 rej[i] = 1 + (random () & 127);
116 rej[len] = '\0';
117 for (c = 1; c <= 255; ++c)
118 if (strchr (rej, c) == NULL)
119 break;
121 for (i = 0; i < pos; ++i)
123 s[i] = random () & 255;
124 if (strchr (rej, s[i]))
126 s[i] = random () & 255;
127 if (strchr (rej, s[i]))
128 s[i] = c;
131 s[pos] = rej[random () % (len + 1)];
132 if (s[pos])
134 for (i = pos + 1; i < pos + 10; ++i)
135 s[i] = random () & 255;
136 s[i] = '\0';
138 result = STRPBRK_RESULT (s, pos);
140 if (HP_TIMING_AVAIL)
141 printf ("Length %4zd, alignment %2zd, rej len %2zd:", pos, align, len);
143 FOR_EACH_IMPL (impl, 0)
144 do_one_test (impl, s, rej, result);
146 if (HP_TIMING_AVAIL)
147 putchar ('\n');
150 static void
151 do_random_tests (void)
153 size_t i, j, n, align, pos, len, rlen;
154 RES_TYPE result;
155 int c;
156 unsigned char *p = buf1 + page_size - 512;
157 unsigned char *rej;
159 for (n = 0; n < ITERATIONS; n++)
161 align = random () & 15;
162 pos = random () & 511;
163 if (pos + align >= 511)
164 pos = 510 - align - (random () & 7);
165 len = random () & 511;
166 if (pos >= len && (random () & 1))
167 len = pos + 1 + (random () & 7);
168 if (len + align >= 512)
169 len = 511 - align - (random () & 7);
170 if (random () & 1)
171 rlen = random () & 63;
172 else
173 rlen = random () & 15;
174 rej = buf2 + page_size - rlen - 1 - (random () & 7);
175 for (i = 0; i < rlen; ++i)
177 rej[i] = random () & 255;
178 if (!rej[i])
179 rej[i] = random () & 255;
180 if (!rej[i])
181 rej[i] = 1 + (random () & 127);
183 rej[i] = '\0';
184 for (c = 1; c <= 255; ++c)
185 if (strchr ((char *) rej, c) == NULL)
186 break;
187 j = (pos > len ? pos : len) + align + 64;
188 if (j > 512)
189 j = 512;
191 for (i = 0; i < j; i++)
193 if (i == len + align)
194 p[i] = '\0';
195 else if (i == pos + align)
196 p[i] = rej[random () % (rlen + 1)];
197 else if (i < align || i > pos + align)
198 p[i] = random () & 255;
199 else
201 p[i] = random () & 255;
202 if (strchr ((char *) rej, p[i]))
204 p[i] = random () & 255;
205 if (strchr ((char *) rej, p[i]))
206 p[i] = c;
211 result = STRPBRK_RESULT ((char *) (p + align), pos < len ? pos : len);
213 FOR_EACH_IMPL (impl, 1)
214 if (CALL (impl, (char *) (p + align), (char *) rej) != result)
216 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %p != %p",
217 n, impl->name, align, rej, rlen, pos, len,
218 (void *) CALL (impl, (char *) (p + align), (char *) rej),
219 (void *) result);
220 ret = 1;
226 test_main (void)
228 size_t i;
230 test_init ();
232 printf ("%32s", "");
233 FOR_EACH_IMPL (impl, 0)
234 printf ("\t%s", impl->name);
235 putchar ('\n');
237 for (i = 0; i < 32; ++i)
239 do_test (0, 512, i);
240 do_test (i, 512, i);
243 for (i = 1; i < 8; ++i)
245 do_test (0, 16 << i, 4);
246 do_test (i, 16 << i, 4);
249 for (i = 1; i < 8; ++i)
250 do_test (i, 64, 10);
252 for (i = 0; i < 64; ++i)
253 do_test (0, i, 6);
255 do_random_tests ();
256 return ret;
259 #include "../test-skeleton.c"