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glibc/benchtests/bench-strpbrk.c
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/* Measure strpbrk functions. | |
Copyright (C) 2013-2016 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 "../test-skeleton.c" |