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/* Measure strpbrk functions.
Copyright (C) 2013-2017 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/>. */
#ifndef WIDE
# define CHAR char
# define STRLEN strlen
# define STRCHR strchr
# define BIG_CHAR CHAR_MAX
# define SMALL_CHAR 127
#else
# include <wchar.h>
# define CHAR wchar_t
# define STRLEN wcslen
# define STRCHR wcschr
# define BIG_CHAR WCHAR_MAX
# define SMALL_CHAR 1273
#endif /* WIDE */
#ifndef STRPBRK_RESULT
# define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL)
# define RES_TYPE CHAR *
# define TEST_MAIN
# ifndef WIDE
# define TEST_NAME "strpbrk"
# else
# define TEST_NAME "wcspbrk"
# endif /* WIDE */
# include "bench-string.h"
# ifndef WIDE
# define STRPBRK strpbrk
# define SIMPLE_STRPBRK simple_strpbrk
# define STUPID_STRPBRK stupid_strpbrk
# else
# include <wchar.h>
# define STRPBRK wcspbrk
# define SIMPLE_STRPBRK simple_wcspbrk
# define STUPID_STRPBRK stupid_wcspbrk
# endif /* WIDE */
typedef CHAR *(*proto_t) (const CHAR *, const CHAR *);
CHAR *SIMPLE_STRPBRK (const CHAR *, const CHAR *);
CHAR *STUPID_STRPBRK (const CHAR *, const CHAR *);
IMPL (STUPID_STRPBRK, 0)
IMPL (SIMPLE_STRPBRK, 0)
IMPL (STRPBRK, 1)
CHAR *
SIMPLE_STRPBRK (const CHAR *s, const CHAR *rej)
{
const CHAR *r;
CHAR c;
while ((c = *s++) != '\0')
for (r = rej; *r != '\0'; ++r)
if (*r == c)
return (CHAR *) s - 1;
return NULL;
}
CHAR *
STUPID_STRPBRK (const CHAR *s, const CHAR *rej)
{
size_t ns = STRLEN (s), nrej = STRLEN (rej);
size_t i, j;
for (i = 0; i < ns; ++i)
for (j = 0; j < nrej; ++j)
if (s[i] == rej[j])
return (CHAR *) s + i;
return NULL;
}
#endif /* !STRPBRK_RESULT */
static void
do_one_test (impl_t *impl, const CHAR *s, const CHAR *rej, RES_TYPE exp_res)
{
RES_TYPE res = CALL (impl, s, rej);
size_t i, iters = INNER_LOOP_ITERS;
timing_t start, stop, cur;
if (res != exp_res)
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,
(void *) res, (void *) exp_res);
ret = 1;
return;
}
TIMING_NOW (start);
for (i = 0; i < iters; ++i)
{
CALL (impl, s, rej);
}
TIMING_NOW (stop);
TIMING_DIFF (cur, start, stop);
TIMING_PRINT_MEAN ((double) cur, (double) iters);
}
static void
do_test (size_t align, size_t pos, size_t len)
{
size_t i;
int c;
RES_TYPE result;
CHAR *rej, *s;
align &= 7;
if ((align + pos + 10) * sizeof (CHAR) >= page_size || len > 240)
return;
rej = (CHAR *) (buf2) + (random () & 255);
s = (CHAR *) (buf1) + align;
for (i = 0; i < len; ++i)
{
rej[i] = random () & BIG_CHAR;
if (!rej[i])
rej[i] = random () & BIG_CHAR;
if (!rej[i])
rej[i] = 1 + (random () & SMALL_CHAR);
}
rej[len] = '\0';
for (c = 1; c <= BIG_CHAR; ++c)
if (STRCHR (rej, c) == NULL)
break;
for (i = 0; i < pos; ++i)
{
s[i] = random () & BIG_CHAR;
if (STRCHR (rej, s[i]))
{
s[i] = random () & BIG_CHAR;
if (STRCHR (rej, s[i]))
s[i] = c;
}
}
s[pos] = rej[random () % (len + 1)];
if (s[pos])
{
for (i = pos + 1; i < pos + 10; ++i)
s[i] = random () & BIG_CHAR;
s[i] = '\0';
}
result = STRPBRK_RESULT (s, pos);
printf ("Length %4zd, alignment %2zd, rej len %2zd:", pos, align, len);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, s, rej, result);
putchar ('\n');
}
int
test_main (void)
{
size_t i;
test_init ();
printf ("%32s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
for (i = 0; i < 32; ++i)
{
do_test (0, 512, i);
do_test (i, 512, i);
}
for (i = 1; i < 8; ++i)
{
do_test (0, 16 << i, 4);
do_test (i, 16 << i, 4);
}
for (i = 1; i < 8; ++i)
do_test (i, 64, 10);
for (i = 0; i < 64; ++i)
do_test (0, i, 6);
return ret;
}
#include <support/test-driver.c>
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