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/* Test case for strncmp inside a transactionally executing RTM region.
Copyright (C) 2021-2025 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
<https://www.gnu.org/licenses/>. */
#include <stdint.h>
#include <tst-string-rtm.h>
#ifdef WIDE
# define CHAR wchar_t
# define MEMSET wmemset
# define STRNCMP wcsncmp
# define TEST_NAME "wcsncmp"
#else /* !WIDE */
# define CHAR char
# define MEMSET memset
# ifndef STRNCMP
# define STRNCMP strncmp
# define TEST_NAME "strncmp"
# endif
#endif /* !WIDE */
#define LOOP 3000
#define STRING_SIZE 1024
CHAR string1[STRING_SIZE];
CHAR string2[STRING_SIZE];
__attribute_optimization_barrier__
static int
prepare (void)
{
MEMSET (string1, 'a', STRING_SIZE - 1);
MEMSET (string2, 'a', STRING_SIZE - 1);
if (STRNCMP (string1, string2, STRING_SIZE) == 0)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
__attribute_optimization_barrier__
static int
function (void)
{
if (STRNCMP (string1, string2, STRING_SIZE) == 0)
return 0;
else
return 1;
}
__attribute_optimization_barrier__
static int
function_overflow (void)
{
if (STRNCMP (string1, string2, SIZE_MAX) == 0)
return 0;
else
return 1;
}
__attribute_optimization_barrier__
static int
function_overflow2 (void)
{
if (STRNCMP (string1, string2, SIZE_MAX >> 4) == 0)
return 0;
else
return 1;
}
static int
do_test (void)
{
int status = do_test_1 (TEST_NAME, LOOP, prepare, function);
if (status != EXIT_SUCCESS)
return status;
status = do_test_1 (TEST_NAME, LOOP, prepare, function_overflow);
if (status != EXIT_SUCCESS)
return status;
status = do_test_1 (TEST_NAME, LOOP, prepare, function_overflow2);
if (status != EXIT_SUCCESS)
return status;
return status;
}
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