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glibc/string/test-strrchr.c
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/* Test and measure STRCHR functions. | |
Copyright (C) 1999-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Written by Jakub Jelinek <jakub@redhat.com>, 1999. | |
Added wcsrrchr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, | |
2011. | |
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 | |
#ifdef WIDE | |
# define TEST_NAME "wcsrchr" | |
#else | |
# define TEST_NAME "strrchr" | |
#endif | |
#include "test-string.h" | |
#ifdef WIDE | |
# include <wchar.h> | |
# define SIMPLE_STRRCHR simple_wcsrchr | |
# define STRRCHR wcsrchr | |
# define CHAR wchar_t | |
# define UCHAR wchar_t | |
# define BIG_CHAR WCHAR_MAX | |
# define SMALL_CHAR 1273 | |
#else | |
# define SIMPLE_STRRCHR simple_strrchr | |
# define STRRCHR strrchr | |
# define CHAR char | |
# define UCHAR unsigned char | |
# define BIG_CHAR CHAR_MAX | |
# define SMALL_CHAR 127 | |
#endif | |
typedef CHAR *(*proto_t) (const CHAR *, int); | |
CHAR *SIMPLE_STRRCHR (const CHAR *, int); | |
IMPL (SIMPLE_STRRCHR, 0) | |
IMPL (STRRCHR, 1) | |
CHAR * | |
SIMPLE_STRRCHR (const CHAR *s, int c) | |
{ | |
const CHAR *ret = NULL; | |
for (; *s != '\0'; ++s) | |
if (*s == (CHAR) c) | |
ret = s; | |
return (CHAR *) (c == '\0' ? s : ret); | |
} | |
static void | |
do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res) | |
{ | |
CHAR *res = CALL (impl, s, c); | |
if (res != exp_res) | |
{ | |
error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
res, exp_res); | |
ret = 1; | |
return; | |
} | |
} | |
static void | |
do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) | |
/* For wcsrchr: align here means align not in bytes, | |
but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) | |
len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ | |
{ | |
size_t i; | |
CHAR *result; | |
CHAR *buf = (CHAR *) buf1; | |
align &= 7; | |
if ( (align + len) * sizeof(CHAR) >= page_size) | |
return; | |
for (i = 0; i < len; ++i) | |
{ | |
buf[align + i] = (random () * random ()) & max_char; | |
if (!buf[align + i]) | |
buf[align + i] = (random () * random ()) & max_char; | |
if (!buf[align + i]) | |
buf[align + i] = 1; | |
if ((i > pos || pos >= len) && buf[align + i] == seek_char) | |
buf[align + i] = seek_char + 10 + (random () & 15); | |
} | |
buf[align + len] = 0; | |
if (pos < len) | |
{ | |
buf[align + pos] = seek_char; | |
result = (CHAR *) (buf + align + pos); | |
} | |
else if (seek_char == 0) | |
result = (CHAR *) (buf + align + len); | |
else | |
result = NULL; | |
FOR_EACH_IMPL (impl, 0) | |
do_one_test (impl, (CHAR *) (buf + align), seek_char, result); | |
} | |
static void | |
do_random_tests (void) | |
{ | |
size_t i, j, n, align, pos, len; | |
int seek_char; | |
CHAR *result; | |
UCHAR *p = (UCHAR *) (buf1 + page_size) - 512; | |
for (n = 0; n < ITERATIONS; n++) | |
{ | |
align = random () & (63 / sizeof(CHAR)); | |
/* For wcsrchr: align here means align not in bytes, but in wchar_ts, | |
in bytes it will equal to align * (sizeof (wchar_t)). | |
For strrchr we need to check all alignments from 0 to 63 since | |
some assembly implementations have separate prolog for alignments | |
more 48. */ | |
pos = random () & 511; | |
if (pos + align >= 511) | |
pos = 510 - align - (random () & 7); | |
len = random () & 511; | |
/* len for wcschr here isn't in bytes but it's number of wchar_t | |
symbols. */ | |
if (pos >= len) | |
len = pos + (random () & 7); | |
if (len + align >= 512) | |
len = 511 - align - (random () & 7); | |
seek_char = random () & 255; | |
if (seek_char && pos == len) | |
{ | |
if (pos) | |
--pos; | |
else | |
++len; | |
} | |
j = len + align + 64; | |
if (j > 512) | |
j = 512; | |
for (i = 0; i < j; i++) | |
{ | |
if (i == pos + align) | |
p[i] = seek_char; | |
else if (i == len + align) | |
p[i] = 0; | |
else | |
{ | |
p[i] = random () & 255; | |
if (((i > pos + align && i < len + align) || pos > len) | |
&& p[i] == seek_char) | |
p[i] = seek_char + 13; | |
if (i < len + align && !p[i]) | |
{ | |
p[i] = seek_char - 13; | |
if (!p[i]) | |
p[i] = 140; | |
} | |
} | |
} | |
if (pos <= len) | |
result = (CHAR *) (p + pos + align); | |
else if (seek_char == 0) | |
result = (CHAR *) (p + len + align); | |
else | |
result = NULL; | |
FOR_EACH_IMPL (impl, 1) | |
if (CALL (impl, (CHAR *) (p + align), seek_char) != result) | |
{ | |
error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %d, %zd, %zd) %p != %p, p %p", | |
n, impl->name, align, seek_char, len, pos, | |
CALL (impl, (CHAR *) (p + align), seek_char), result, 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, 16 << i, 2048, 23, SMALL_CHAR); | |
do_test (i, 16 << i, 2048, 23, SMALL_CHAR); | |
} | |
for (i = 1; i < 8; ++i) | |
{ | |
do_test (i, 64, 256, 23, SMALL_CHAR); | |
do_test (i, 64, 256, 23, BIG_CHAR); | |
} | |
for (i = 0; i < 32; ++i) | |
{ | |
do_test (0, i, i + 1, 23, SMALL_CHAR); | |
do_test (0, i, i + 1, 23, BIG_CHAR); | |
} | |
for (i = 1; i < 8; ++i) | |
{ | |
do_test (0, 16 << i, 2048, 0, SMALL_CHAR); | |
do_test (i, 16 << i, 2048, 0, SMALL_CHAR); | |
} | |
for (i = 1; i < 8; ++i) | |
{ | |
do_test (i, 64, 256, 0, SMALL_CHAR); | |
do_test (i, 64, 256, 0, BIG_CHAR); | |
} | |
for (i = 0; i < 32; ++i) | |
{ | |
do_test (0, i, i + 1, 0, SMALL_CHAR); | |
do_test (0, i, i + 1, 0, BIG_CHAR); | |
} | |
do_random_tests (); | |
return ret; | |
} | |
#include "../test-skeleton.c" |