Fix atanhl missing underflows (bug 16352).
[glibc.git] / string / test-strpbrk.c
blobb4ac389a710ef4321c327785534e1fa48395d1de
1 /* Test and measure strpbrk functions.
2 Copyright (C) 1999-2015 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, see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef STRPBRK_RESULT
21 # define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL)
22 # define RES_TYPE char *
23 # define TEST_MAIN
24 # define TEST_NAME "strpbrk"
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;
75 static void
76 do_test (size_t align, size_t pos, size_t len)
78 size_t i;
79 int c;
80 RES_TYPE result;
81 char *rej, *s;
83 align &= 7;
84 if (align + pos + 10 >= page_size || len > 240)
85 return;
87 rej = (char *) (buf2 + (random () & 255));
88 s = (char *) (buf1 + align);
90 for (i = 0; i < len; ++i)
92 rej[i] = random () & 255;
93 if (!rej[i])
94 rej[i] = random () & 255;
95 if (!rej[i])
96 rej[i] = 1 + (random () & 127);
98 rej[len] = '\0';
99 for (c = 1; c <= 255; ++c)
100 if (strchr (rej, c) == NULL)
101 break;
103 for (i = 0; i < pos; ++i)
105 s[i] = random () & 255;
106 if (strchr (rej, s[i]))
108 s[i] = random () & 255;
109 if (strchr (rej, s[i]))
110 s[i] = c;
113 s[pos] = rej[random () % (len + 1)];
114 if (s[pos])
116 for (i = pos + 1; i < pos + 10; ++i)
117 s[i] = random () & 255;
118 s[i] = '\0';
120 result = STRPBRK_RESULT (s, pos);
122 FOR_EACH_IMPL (impl, 0)
123 do_one_test (impl, s, rej, result);
126 static void
127 do_random_tests (void)
129 size_t i, j, n, align, pos, len, rlen;
130 RES_TYPE result;
131 int c;
132 unsigned char *p = buf1 + page_size - 512;
133 unsigned char *rej;
135 for (n = 0; n < ITERATIONS; n++)
137 align = random () & 15;
138 pos = random () & 511;
139 if (pos + align >= 511)
140 pos = 510 - align - (random () & 7);
141 len = random () & 511;
142 if (pos >= len && (random () & 1))
143 len = pos + 1 + (random () & 7);
144 if (len + align >= 512)
145 len = 511 - align - (random () & 7);
146 if (random () & 1)
147 rlen = random () & 63;
148 else
149 rlen = random () & 15;
150 rej = buf2 + page_size - rlen - 1 - (random () & 7);
151 for (i = 0; i < rlen; ++i)
153 rej[i] = random () & 255;
154 if (!rej[i])
155 rej[i] = random () & 255;
156 if (!rej[i])
157 rej[i] = 1 + (random () & 127);
159 rej[i] = '\0';
160 for (c = 1; c <= 255; ++c)
161 if (strchr ((char *) rej, c) == NULL)
162 break;
163 j = (pos > len ? pos : len) + align + 64;
164 if (j > 512)
165 j = 512;
167 for (i = 0; i < j; i++)
169 if (i == len + align)
170 p[i] = '\0';
171 else if (i == pos + align)
172 p[i] = rej[random () % (rlen + 1)];
173 else if (i < align || i > pos + align)
174 p[i] = random () & 255;
175 else
177 p[i] = random () & 255;
178 if (strchr ((char *) rej, p[i]))
180 p[i] = random () & 255;
181 if (strchr ((char *) rej, p[i]))
182 p[i] = c;
187 result = STRPBRK_RESULT ((char *) (p + align), pos < len ? pos : len);
189 FOR_EACH_IMPL (impl, 1)
190 if (CALL (impl, (char *) (p + align), (char *) rej) != result)
192 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %p != %p",
193 n, impl->name, align, rej, rlen, pos, len,
194 (void *) CALL (impl, (char *) (p + align), (char *) rej),
195 (void *) result);
196 ret = 1;
202 test_main (void)
204 size_t i;
206 test_init ();
208 printf ("%32s", "");
209 FOR_EACH_IMPL (impl, 0)
210 printf ("\t%s", impl->name);
211 putchar ('\n');
213 for (i = 0; i < 32; ++i)
215 do_test (0, 512, i);
216 do_test (i, 512, i);
219 for (i = 1; i < 8; ++i)
221 do_test (0, 16 << i, 4);
222 do_test (i, 16 << i, 4);
225 for (i = 1; i < 8; ++i)
226 do_test (i, 64, 10);
228 for (i = 0; i < 64; ++i)
229 do_test (0, i, 6);
231 do_random_tests ();
232 return ret;
235 #include "../test-skeleton.c"