mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
149 lines
3.3 KiB
C
149 lines
3.3 KiB
C
/* Measure strcat functions.
|
|
Copyright (C) 2013-2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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 "strcat"
|
|
#include "bench-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), i, iters = INNER_LOOP_ITERS;
|
|
timing_t start, stop, cur;
|
|
|
|
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;
|
|
}
|
|
|
|
TIMING_NOW (start);
|
|
for (i = 0; i < iters; ++i)
|
|
{
|
|
dst[k] = '\0';
|
|
CALL (impl, dst, src);
|
|
}
|
|
TIMING_NOW (stop);
|
|
|
|
TIMING_DIFF (cur, start, stop);
|
|
|
|
TIMING_PRINT_MEAN ((double) cur, (double) iters);
|
|
}
|
|
|
|
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);
|
|
|
|
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);
|
|
}
|
|
|
|
putchar ('\n');
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#include "../test-skeleton.c"
|