1 /* Test and measure STRCHR 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.
5 Added wcschr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
23 # ifdef USE_FOR_STRCHRNUL
24 # define TEST_NAME "strchrnul"
26 # define TEST_NAME "strchr"
29 # define TEST_NAME "wcschr"
31 #include "test-string.h"
34 # ifdef USE_FOR_STRCHRNUL
35 # define STRCHR strchrnul
36 # define stupid_STRCHR stupid_STRCHRNUL
37 # define simple_STRCHR simple_STRCHRNUL
39 # define STRCHR strchr
41 # define STRLEN strlen
43 # define BIG_CHAR CHAR_MAX
44 # define MIDDLE_CHAR 127
45 # define SMALL_CHAR 23
46 # define UCHAR unsigned char
50 # define STRCHR wcschr
51 # define STRLEN wcslen
53 # define BIG_CHAR WCHAR_MAX
54 # define MIDDLE_CHAR 1121
55 # define SMALL_CHAR 851
56 # define UCHAR wchar_t
60 #ifdef USE_FOR_STRCHRNUL
61 # define NULLRET(endptr) endptr
63 # define NULLRET(endptr) NULL
67 typedef CHAR *(*proto_t) (const CHAR *, int);
70 simple_STRCHR (const CHAR *s, int c)
72 for (; *s != (CHAR) c; ++s)
74 return NULLRET ((CHAR *) s);
79 stupid_STRCHR (const CHAR *s, int c)
81 size_t n = STRLEN (s) + 1;
85 return (CHAR *) s - 1;
86 return NULLRET ((CHAR *) s - 1);
89 IMPL (stupid_STRCHR, 0)
90 IMPL (simple_STRCHR, 0)
94 check_result (impl_t *impl, const CHAR *s, int c, const CHAR *exp_res)
96 CHAR *res = CALL (impl, s, c);
99 error (0, 0, "Wrong result in function %s %#x %p %p", impl->name,
108 do_one_test (impl_t *impl, const CHAR *s, int c, const CHAR *exp_res)
110 if (check_result (impl, s, c, exp_res) < 0)
115 do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char)
116 /* For wcschr: align here means align not in bytes,
117 but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
118 len for wcschr here isn't in bytes but it's number of wchar_t symbols. */
122 CHAR *buf = (CHAR *) buf1;
124 if ((align + len) * sizeof (CHAR) >= page_size)
127 for (i = 0; i < len; ++i)
129 buf[align + i] = 32 + 23 * i % max_char;
130 if (buf[align + i] == seek_char)
131 buf[align + i] = seek_char + 1;
132 else if (buf[align + i] == 0)
135 buf[align + len] = 0;
139 buf[align + pos] = seek_char;
140 result = buf + align + pos;
142 else if (seek_char == 0)
143 result = buf + align + len;
145 result = NULLRET (buf + align + len);
147 FOR_EACH_IMPL (impl, 0)
148 do_one_test (impl, buf + align, seek_char, result);
152 do_random_tests (void)
154 size_t i, j, n, align, pos, len;
157 UCHAR *p = (UCHAR *) (buf1 + page_size - 512 * sizeof (CHAR));
159 for (n = 0; n < ITERATIONS; n++)
161 /* For wcschr: align here means align not in bytes, but in wchar_ts,
162 in bytes it will equal to align * (sizeof (wchar_t)). */
163 align = random () & 15;
164 pos = random () & 511;
165 seek_char = random () & 255;
166 if (pos + align >= 511)
167 pos = 510 - align - (random () & 7);
168 /* len for wcschr here isn't in bytes but it's number of wchar_t
170 len = random () & 511;
171 if ((pos == len && seek_char)
172 || (pos > len && (random () & 1)))
173 len = pos + 1 + (random () & 7);
174 if (len + align >= 512)
175 len = 511 - align - (random () & 7);
176 if (pos == len && seek_char)
178 j = (pos > len ? pos : len) + align + 64;
182 for (i = 0; i < j; i++)
184 if (i == pos + align)
186 else if (i == len + align)
190 p[i] = random () & 255;
191 if (i < pos + align && p[i] == seek_char)
192 p[i] = seek_char + 13;
193 if (i < len + align && !p[i])
195 p[i] = seek_char - 13;
203 result = (CHAR *) (p + pos + align);
204 else if (seek_char == 0)
205 result = (CHAR *) (p + len + align);
207 result = NULLRET ((CHAR *) (p + len + align));
209 FOR_EACH_IMPL (impl, 1)
210 if (CALL (impl, (CHAR *) (p + align), seek_char) != result)
212 error (0, 0, "Iteration %zd - wrong result in function \
213 %s (align in bytes: %zd, seek_char: %d, len: %zd, pos: %zd) %p != %p, p %p",
214 n, impl->name, align * sizeof (CHAR), seek_char, len, pos,
215 CALL (impl, (CHAR *) (p + align), seek_char), result, p);
224 CHAR s[] __attribute__((aligned(16))) = L ("\xff");
226 CHAR *exp_result = stupid_STRCHR (s, c);
228 FOR_EACH_IMPL (impl, 0)
229 check_result (impl, s, c, exp_result);
242 FOR_EACH_IMPL (impl, 0)
243 printf ("\t%s", impl->name);
246 for (i = 1; i < 8; ++i)
248 do_test (0, 16 << i, 2048, SMALL_CHAR, MIDDLE_CHAR);
249 do_test (i, 16 << i, 2048, SMALL_CHAR, MIDDLE_CHAR);
252 for (i = 1; i < 8; ++i)
254 do_test (i, 64, 256, SMALL_CHAR, MIDDLE_CHAR);
255 do_test (i, 64, 256, SMALL_CHAR, BIG_CHAR);
258 for (i = 0; i < 32; ++i)
260 do_test (0, i, i + 1, SMALL_CHAR, MIDDLE_CHAR);
261 do_test (0, i, i + 1, SMALL_CHAR, BIG_CHAR);
264 for (i = 1; i < 8; ++i)
266 do_test (0, 16 << i, 2048, 0, MIDDLE_CHAR);
267 do_test (i, 16 << i, 2048, 0, MIDDLE_CHAR);
270 for (i = 1; i < 8; ++i)
272 do_test (i, 64, 256, 0, MIDDLE_CHAR);
273 do_test (i, 64, 256, 0, BIG_CHAR);
276 for (i = 0; i < 32; ++i)
278 do_test (0, i, i + 1, 0, MIDDLE_CHAR);
279 do_test (0, i, i + 1, 0, BIG_CHAR);
286 #include "../test-skeleton.c"