mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
174 lines
4.0 KiB
C
174 lines
4.0 KiB
C
/* Test and measure strlen functions.
|
|
Copyright (C) 1999-2014 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#define TEST_MAIN
|
|
#define TEST_NAME "strnlen"
|
|
#include "test-string.h"
|
|
|
|
typedef size_t (*proto_t) (const char *, size_t);
|
|
size_t simple_strnlen (const char *, size_t);
|
|
|
|
IMPL (simple_strnlen, 0)
|
|
IMPL (strnlen, 1)
|
|
|
|
size_t
|
|
simple_strnlen (const char *s, size_t maxlen)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < maxlen && s[i]; ++i);
|
|
return i;
|
|
}
|
|
|
|
static void
|
|
do_one_test (impl_t *impl, const char *s, size_t maxlen, size_t exp_len)
|
|
{
|
|
size_t len = CALL (impl, s, maxlen);
|
|
if (len != exp_len)
|
|
{
|
|
error (0, 0, "Wrong result in function %s %zd %zd", impl->name,
|
|
len, exp_len);
|
|
ret = 1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_test (size_t align, size_t len, size_t maxlen, int max_char)
|
|
{
|
|
size_t i;
|
|
|
|
align &= 7;
|
|
if (align + len >= page_size)
|
|
return;
|
|
|
|
for (i = 0; i < len; ++i)
|
|
buf1[align + i] = 1 + 7 * i % max_char;
|
|
buf1[align + len] = 0;
|
|
|
|
FOR_EACH_IMPL (impl, 0)
|
|
do_one_test (impl, (char *) (buf1 + align), maxlen, MIN (len, maxlen));
|
|
}
|
|
|
|
static void
|
|
do_random_tests (void)
|
|
{
|
|
size_t i, j, n, align, len;
|
|
unsigned char *p = buf1 + page_size - 512;
|
|
|
|
for (n = 0; n < ITERATIONS; n++)
|
|
{
|
|
align = random () & 15;
|
|
len = random () & 511;
|
|
if (len + align > 510)
|
|
len = 511 - align - (random () & 7);
|
|
j = len + align + 64;
|
|
if (j > 512)
|
|
j = 512;
|
|
|
|
for (i = 0; i < j; i++)
|
|
{
|
|
if (i == len + align)
|
|
p[i] = 0;
|
|
else
|
|
{
|
|
p[i] = random () & 255;
|
|
if (i >= align && i < len + align && !p[i])
|
|
p[i] = (random () & 127) + 1;
|
|
}
|
|
}
|
|
|
|
FOR_EACH_IMPL (impl, 1)
|
|
{
|
|
if (len > 0
|
|
&& CALL (impl, (char *) (p + align), len - 1) != len - 1)
|
|
{
|
|
error (0, 0, "Iteration %zd (limited) - wrong result in function %s (%zd) %zd != %zd, p %p",
|
|
n, impl->name, align,
|
|
CALL (impl, (char *) (p + align), len - 1), len - 1, p);
|
|
ret = 1;
|
|
}
|
|
if (CALL (impl, (char *) (p + align), len) != len)
|
|
{
|
|
error (0, 0, "Iteration %zd (exact) - wrong result in function %s (%zd) %zd != %zd, p %p",
|
|
n, impl->name, align,
|
|
CALL (impl, (char *) (p + align), len), len, p);
|
|
ret = 1;
|
|
}
|
|
if (CALL (impl, (char *) (p + align), len + 1) != len)
|
|
{
|
|
error (0, 0, "Iteration %zd (long) - wrong result in function %s (%zd) %zd != %zd, p %p",
|
|
n, impl->name, align,
|
|
CALL (impl, (char *) (p + align), len + 1), len, p);
|
|
ret = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
test_main (void)
|
|
{
|
|
size_t i;
|
|
|
|
test_init ();
|
|
|
|
printf ("%20s", "");
|
|
FOR_EACH_IMPL (impl, 0)
|
|
printf ("\t%s", impl->name);
|
|
putchar ('\n');
|
|
|
|
for (i = 1; i < 8; ++i)
|
|
{
|
|
do_test (0, i, i - 1, 127);
|
|
do_test (0, i, i, 127);
|
|
do_test (0, i, i + 1, 127);
|
|
}
|
|
|
|
for (i = 1; i < 8; ++i)
|
|
{
|
|
do_test (i, i, i - 1, 127);
|
|
do_test (i, i, i, 127);
|
|
do_test (i, i, i + 1, 127);
|
|
}
|
|
|
|
for (i = 2; i <= 10; ++i)
|
|
{
|
|
do_test (0, 1 << i, 5000, 127);
|
|
do_test (1, 1 << i, 5000, 127);
|
|
}
|
|
|
|
for (i = 1; i < 8; ++i)
|
|
do_test (0, i, 5000, 255);
|
|
|
|
for (i = 1; i < 8; ++i)
|
|
do_test (i, i, 5000, 255);
|
|
|
|
for (i = 2; i <= 10; ++i)
|
|
{
|
|
do_test (0, 1 << i, 5000, 255);
|
|
do_test (1, 1 << i, 5000, 255);
|
|
}
|
|
|
|
do_random_tests ();
|
|
return ret;
|
|
}
|
|
|
|
#include "../test-skeleton.c"
|