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glibc/string/test-strcat.c
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/* Test and measure strcat functions. | |
Copyright (C) 1999, 2002, 2003, 2005 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Written by Jakub Jelinek <jakub@redhat.com>, 1999. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, write to the Free | |
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
02111-1307 USA. */ | |
#define TEST_MAIN | |
#include "test-string.h" | |
typedef char *(*proto_t) (char *, const char *); | |
char *simple_strcat (char *, const char *); | |
IMPL (simple_strcat, 0) | |
IMPL (strcat, 1) | |
char * | |
simple_strcat (char *dst, const char *src) | |
{ | |
char *ret = dst; | |
while (*dst++ != '\0'); | |
--dst; | |
while ((*dst++ = *src++) != '\0'); | |
return ret; | |
} | |
static void | |
do_one_test (impl_t *impl, char *dst, const char *src) | |
{ | |
size_t k = strlen (dst); | |
if (CALL (impl, dst, src) != dst) | |
{ | |
error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
CALL (impl, dst, src), dst); | |
ret = 1; | |
return; | |
} | |
if (strcmp (dst + k, src) != 0) | |
{ | |
error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"", | |
impl->name, dst, src); | |
ret = 1; | |
return; | |
} | |
if (HP_TIMING_AVAIL) | |
{ | |
hp_timing_t start __attribute ((unused)); | |
hp_timing_t stop __attribute ((unused)); | |
hp_timing_t best_time = ~ (hp_timing_t) 0; | |
size_t i; | |
for (i = 0; i < 32; ++i) | |
{ | |
dst[k] = '\0'; | |
HP_TIMING_NOW (start); | |
CALL (impl, dst, src); | |
HP_TIMING_NOW (stop); | |
HP_TIMING_BEST (best_time, start, stop); | |
} | |
printf ("\t%zd", (size_t) best_time); | |
} | |
} | |
static void | |
do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char) | |
{ | |
size_t i; | |
char *s1, *s2; | |
align1 &= 7; | |
if (align1 + len1 >= page_size) | |
return; | |
align2 &= 7; | |
if (align2 + len1 + len2 >= page_size) | |
return; | |
s1 = (char *) (buf1 + align1); | |
s2 = (char *) (buf2 + align2); | |
for (i = 0; i < len1; ++i) | |
s1[i] = 32 + 23 * i % (max_char - 32); | |
s1[len1] = '\0'; | |
for (i = 0; i < len2; i++) | |
s2[i] = 32 + 23 * i % (max_char - 32); | |
if (HP_TIMING_AVAIL) | |
printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len1, len2, align1, align2); | |
FOR_EACH_IMPL (impl, 0) | |
{ | |
s2[len2] = '\0'; | |
do_one_test (impl, s2, s1); | |
} | |
if (HP_TIMING_AVAIL) | |
putchar ('\n'); | |
} | |
static void | |
do_random_tests (void) | |
{ | |
size_t i, j, n, align1, align2, len1, len2; | |
unsigned char *p1 = buf1 + page_size - 512; | |
unsigned char *p2 = buf2 + page_size - 512; | |
unsigned char *res; | |
for (n = 0; n < ITERATIONS; n++) | |
{ | |
align1 = random () & 31; | |
if (random () & 1) | |
align2 = random () & 31; | |
else | |
align2 = align1 + (random () & 24); | |
len1 = random () & 511; | |
if (len1 + align2 > 512) | |
len2 = random () & 7; | |
else | |
len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1)) | |
/ (1024 * 1024); | |
j = align1; | |
if (align2 + len2 > j) | |
j = align2 + len2; | |
if (len1 + j >= 511) | |
len1 = 510 - j - (random () & 7); | |
if (len1 >= 512) | |
len1 = 0; | |
if (align1 + len1 < 512 - 8) | |
{ | |
j = 510 - align1 - len1 - (random () & 31); | |
if (j > 0 && j < 512) | |
align1 += j; | |
} | |
j = len1 + align1 + 64; | |
if (j > 512) | |
j = 512; | |
for (i = 0; i < j; i++) | |
{ | |
if (i == len1 + align1) | |
p1[i] = 0; | |
else | |
{ | |
p1[i] = random () & 255; | |
if (i >= align1 && i < len1 + align1 && !p1[i]) | |
p1[i] = (random () & 127) + 3; | |
} | |
} | |
for (i = 0; i < len2; i++) | |
{ | |
buf1[i] = random () & 255; | |
if (!buf1[i]) | |
buf1[i] = (random () & 127) + 3; | |
} | |
buf1[len2] = 0; | |
FOR_EACH_IMPL (impl, 1) | |
{ | |
memset (p2 - 64, '\1', align2 + 64); | |
memset (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1); | |
memcpy (p2 + align2, buf1, len2 + 1); | |
res = (unsigned char *) CALL (impl, (char *) (p2 + align2), | |
(char *) (p1 + align1)); | |
if (res != p2 + align2) | |
{ | |
error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p", | |
n, impl->name, align1, align2, len1, len2, res, | |
p2 + align2); | |
ret = 1; | |
} | |
for (j = 0; j < align2 + 64; ++j) | |
{ | |
if (p2[j - 64] != '\1') | |
{ | |
error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd, %zd)", | |
n, impl->name, align1, align2, len1, len2); | |
ret = 1; | |
break; | |
} | |
} | |
if (memcmp (p2 + align2, buf1, len2)) | |
{ | |
error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)", | |
n, impl->name, align1, align2, len1, len2); | |
ret = 1; | |
} | |
for (j = align2 + len1 + len2 + 1; j < 512; ++j) | |
{ | |
if (p2[j] != '\1') | |
{ | |
error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd, %zd)", | |
n, impl->name, align1, align2, len1, len2); | |
ret = 1; | |
break; | |
} | |
} | |
if (memcmp (p1 + align1, p2 + align2 + len2, len1 + 1)) | |
{ | |
error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)", | |
n, impl->name, align1, align2, len1, len2); | |
ret = 1; | |
} | |
} | |
} | |
} | |
int | |
test_main (void) | |
{ | |
size_t i; | |
test_init (); | |
printf ("%28s", ""); | |
FOR_EACH_IMPL (impl, 0) | |
printf ("\t%s", impl->name); | |
putchar ('\n'); | |
for (i = 0; i < 16; ++i) | |
{ | |
do_test (0, 0, i, i, 127); | |
do_test (0, 0, i, i, 255); | |
do_test (0, i, i, i, 127); | |
do_test (i, 0, i, i, 255); | |
} | |
for (i = 1; i < 8; ++i) | |
{ | |
do_test (0, 0, 8 << i, 8 << i, 127); | |
do_test (8 - i, 2 * i, 8 << i, 8 << i, 127); | |
do_test (0, 0, 8 << i, 2 << i, 127); | |
do_test (8 - i, 2 * i, 8 << i, 2 << i, 127); | |
} | |
for (i = 1; i < 8; ++i) | |
{ | |
do_test (i, 2 * i, 8 << i, 1, 127); | |
do_test (2 * i, i, 8 << i, 1, 255); | |
do_test (i, i, 8 << i, 10, 127); | |
do_test (i, i, 8 << i, 10, 255); | |
} | |
do_random_tests (); | |
return ret; | |
} | |
#include "../test-skeleton.c" |