1 /* Test and measure strspn functions.
2 Copyright (C) 1999-2021 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 #define TEST_MAIN
20 #ifndef WIDE
21 # define TEST_NAME "strspn"
22 #else
23 # define TEST_NAME "wcsspn"
24 #endif /* WIDE */
25 #include "test-string.h"
26
27 #ifndef WIDE
28 # define STRSPN strspn
29 # define CHAR char
30 # define UCHAR unsigned char
31 # define SIMPLE_STRSPN simple_strspn
32 # define STUPID_STRSPN stupid_strspn
33 # define STRLEN strlen
34 # define STRCHR strchr
35 # define BIG_CHAR CHAR_MAX
36 # define SMALL_CHAR 127
37 #else
38 # include <wchar.h>
39 # define STRSPN wcsspn
40 # define CHAR wchar_t
41 # define UCHAR wchar_t
42 # define SIMPLE_STRSPN simple_wcsspn
43 # define STUPID_STRSPN stupid_wcsspn
44 # define STRLEN wcslen
45 # define STRCHR wcschr
46 # define BIG_CHAR WCHAR_MAX
47 # define SMALL_CHAR 1273
48 #endif /* WIDE */
49
50 typedef size_t (*proto_t) (const CHAR *, const CHAR *);
51 size_t SIMPLE_STRSPN (const CHAR *, const CHAR *);
52 size_t STUPID_STRSPN (const CHAR *, const CHAR *);
53
54 IMPL (STUPID_STRSPN, 0)
55 IMPL (SIMPLE_STRSPN, 0)
56 IMPL (STRSPN, 1)
57
58 size_t
SIMPLE_STRSPN(const CHAR * s,const CHAR * acc)59 SIMPLE_STRSPN (const CHAR *s, const CHAR *acc)
60 {
61 const CHAR *r, *str = s;
62 CHAR c;
63
64 while ((c = *s++) != '\0')
65 {
66 for (r = acc; *r != '\0'; ++r)
67 if (*r == c)
68 break;
69 if (*r == '\0')
70 return s - str - 1;
71 }
72 return s - str - 1;
73 }
74
75 size_t
STUPID_STRSPN(const CHAR * s,const CHAR * acc)76 STUPID_STRSPN (const CHAR *s, const CHAR *acc)
77 {
78 size_t ns = STRLEN (s), nacc = STRLEN (acc);
79 size_t i, j;
80
81 for (i = 0; i < ns; ++i)
82 {
83 for (j = 0; j < nacc; ++j)
84 if (s[i] == acc[j])
85 break;
86 if (j == nacc)
87 return i;
88 }
89 return i;
90 }
91
92 static void
do_one_test(impl_t * impl,const CHAR * s,const CHAR * acc,size_t exp_res)93 do_one_test (impl_t *impl, const CHAR *s, const CHAR *acc, size_t exp_res)
94 {
95 size_t res = CALL (impl, s, acc);
96 if (res != exp_res)
97 {
98 error (0, 0, "Wrong result in function %s %p %p", impl->name,
99 (void *) res, (void *) exp_res);
100 ret = 1;
101 return;
102 }
103 }
104
105 static void
do_test(size_t align,size_t pos,size_t len)106 do_test (size_t align, size_t pos, size_t len)
107 {
108 size_t i;
109 CHAR *acc, *s;
110
111 align &= 7;
112 if ((align + pos + 10) * sizeof (CHAR) >= page_size || len > 240 || ! len)
113 return;
114
115 acc = (CHAR *) (buf2) + (random () & 255);
116 s = (CHAR *) (buf1) + align;
117
118 for (i = 0; i < len; ++i)
119 {
120 acc[i] = random () & BIG_CHAR;
121 if (!acc[i])
122 acc[i] = random () & BIG_CHAR;
123 if (!acc[i])
124 acc[i] = 1 + (random () & SMALL_CHAR);
125 }
126 acc[len] = '\0';
127
128 for (i = 0; i < pos; ++i)
129 s[i] = acc[random () % len];
130 s[pos] = random () & BIG_CHAR;
131 if (STRCHR (acc, s[pos]))
132 s[pos] = '\0';
133 else
134 {
135 for (i = pos + 1; i < pos + 10; ++i)
136 s[i] = random () & BIG_CHAR;
137 s[i] = '\0';
138 }
139
140 FOR_EACH_IMPL (impl, 0)
141 do_one_test (impl, s, acc, pos);
142 }
143
144 static void
do_random_tests(void)145 do_random_tests (void)
146 {
147 size_t i, j, n, align, pos, alen, len;
148 UCHAR *p = (UCHAR *) (buf1 + page_size) - 512;
149 UCHAR *acc;
150
151 for (n = 0; n < ITERATIONS; n++)
152 {
153 align = random () & 15;
154 if (random () & 1)
155 alen = random () & 63;
156 else
157 alen = random () & 15;
158 if (!alen)
159 pos = 0;
160 else
161 pos = random () & 511;
162 if (pos + align >= 511)
163 pos = 510 - align - (random () & 7);
164 len = random () & 511;
165 if (len + align >= 512)
166 len = 511 - align - (random () & 7);
167 acc = (UCHAR *) (buf2 + page_size) - alen - 1 - (random () & 7);
168 for (i = 0; i < alen; ++i)
169 {
170 acc[i] = random () & BIG_CHAR;
171 if (!acc[i])
172 acc[i] = random () & BIG_CHAR;
173 if (!acc[i])
174 acc[i] = 1 + (random () & SMALL_CHAR);
175 }
176 acc[i] = '\0';
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 {
187 p[i] = random () & BIG_CHAR;
188 if (STRCHR ((CHAR *) acc, p[i]))
189 p[i] = '\0';
190 }
191 else if (i < align || i > pos + align)
192 p[i] = random () & BIG_CHAR;
193 else
194 p[i] = acc [random () % alen];
195 }
196
197 FOR_EACH_IMPL (impl, 1)
198 if (CALL (impl, (CHAR *) (p + align),
199 (CHAR *) acc) != (pos < len ? pos : len))
200 {
201 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %zd != %zd",
202 n, impl->name, align, acc, alen, pos, len,
203 CALL (impl, (CHAR *) (p + align), (CHAR *) acc),
204 (pos < len ? pos : len));
205 ret = 1;
206 }
207 }
208 }
209
210 int
test_main(void)211 test_main (void)
212 {
213 size_t i;
214
215 test_init ();
216
217 printf ("%32s", "");
218 FOR_EACH_IMPL (impl, 0)
219 printf ("\t%s", impl->name);
220 putchar ('\n');
221
222 for (i = 0; i < 32; ++i)
223 {
224 do_test (0, 512, i);
225 do_test (i, 512, i);
226 }
227
228 for (i = 1; i < 8; ++i)
229 {
230 do_test (0, 16 << i, 4);
231 do_test (i, 16 << i, 4);
232 }
233
234 for (i = 1; i < 8; ++i)
235 do_test (i, 64, 10);
236
237 for (i = 0; i < 64; ++i)
238 do_test (0, i, 6);
239
240 do_random_tests ();
241 return ret;
242 }
243
244 #include <support/test-driver.c>
245