1 /* Test and measure strcat 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/>. */
21 #define TEST_NAME "strcat"
22 #include "test-string.h"
24 typedef char *(*proto_t) (char *, const char *);
25 char *simple_strcat (char *, const char *);
27 IMPL (simple_strcat, 0)
31 simple_strcat (char *dst, const char *src)
34 while (*dst++ != '\0');
36 while ((*dst++ = *src++) != '\0');
41 do_one_test (impl_t *impl, char *dst, const char *src)
43 size_t k = strlen (dst);
44 if (CALL (impl, dst, src) != dst)
46 error (0, 0, "Wrong result in function %s %p %p", impl->name,
47 CALL (impl, dst, src), dst);
52 if (strcmp (dst + k, src) != 0)
54 error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
55 impl->name, dst, src);
62 do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char)
68 if (align1 + len1 >= page_size)
72 if (align2 + len1 + len2 >= page_size)
75 s1 = (char *) (buf1 + align1);
76 s2 = (char *) (buf2 + align2);
78 for (i = 0; i < len1; ++i)
79 s1[i] = 32 + 23 * i % (max_char - 32);
82 for (i = 0; i < len2; i++)
83 s2[i] = 32 + 23 * i % (max_char - 32);
85 FOR_EACH_IMPL (impl, 0)
88 do_one_test (impl, s2, s1);
93 do_random_tests (void)
95 size_t i, j, n, align1, align2, len1, len2;
96 unsigned char *p1 = buf1 + page_size - 512;
97 unsigned char *p2 = buf2 + page_size - 512;
100 for (n = 0; n < ITERATIONS; n++)
102 align1 = random () & 31;
104 align2 = random () & 31;
106 align2 = align1 + (random () & 24);
107 len1 = random () & 511;
108 if (len1 + align2 > 512)
109 len2 = random () & 7;
111 len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1))
114 if (align2 + len2 > j)
117 len1 = 510 - j - (random () & 7);
120 if (align1 + len1 < 512 - 8)
122 j = 510 - align1 - len1 - (random () & 31);
123 if (j > 0 && j < 512)
126 j = len1 + align1 + 64;
129 for (i = 0; i < j; i++)
131 if (i == len1 + align1)
135 p1[i] = random () & 255;
136 if (i >= align1 && i < len1 + align1 && !p1[i])
137 p1[i] = (random () & 127) + 3;
140 for (i = 0; i < len2; i++)
142 buf1[i] = random () & 255;
144 buf1[i] = (random () & 127) + 3;
148 FOR_EACH_IMPL (impl, 1)
150 memset (p2 - 64, '\1', align2 + 64);
151 memset (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
152 memcpy (p2 + align2, buf1, len2 + 1);
153 res = (unsigned char *) CALL (impl, (char *) (p2 + align2),
154 (char *) (p1 + align1));
155 if (res != p2 + align2)
157 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p",
158 n, impl->name, align1, align2, len1, len2, res,
162 for (j = 0; j < align2 + 64; ++j)
164 if (p2[j - 64] != '\1')
166 error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd, %zd)",
167 n, impl->name, align1, align2, len1, len2);
172 if (memcmp (p2 + align2, buf1, len2))
174 error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)",
175 n, impl->name, align1, align2, len1, len2);
178 for (j = align2 + len1 + len2 + 1; j < 512; ++j)
182 error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd, %zd)",
183 n, impl->name, align1, align2, len1, len2);
188 if (memcmp (p1 + align1, p2 + align2 + len2, len1 + 1))
190 error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)",
191 n, impl->name, align1, align2, len1, len2);
206 FOR_EACH_IMPL (impl, 0)
207 printf ("\t%s", impl->name);
210 for (i = 0; i < 16; ++i)
212 do_test (0, 0, i, i, 127);
213 do_test (0, 0, i, i, 255);
214 do_test (0, i, i, i, 127);
215 do_test (i, 0, i, i, 255);
218 for (i = 1; i < 8; ++i)
220 do_test (0, 0, 8 << i, 8 << i, 127);
221 do_test (8 - i, 2 * i, 8 << i, 8 << i, 127);
222 do_test (0, 0, 8 << i, 2 << i, 127);
223 do_test (8 - i, 2 * i, 8 << i, 2 << i, 127);
226 for (i = 1; i < 8; ++i)
228 do_test (i, 2 * i, 8 << i, 1, 127);
229 do_test (2 * i, i, 8 << i, 1, 255);
230 do_test (i, i, 8 << i, 10, 127);
231 do_test (i, i, 8 << i, 10, 255);
238 #include "../test-skeleton.c"