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/* Test of u8_strchr() function.
Copyright (C) 2010-2024 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini <bonzini@gnu.org>, 2010. */
#include <config.h>
#include "unistr.h"
#include <stdlib.h>
#include <string.h>
#include "zerosize-ptr.h"
#include "macros.h"
#define UNIT uint8_t
#define U_UCTOMB u8_uctomb
#define U32_TO_U u32_to_u8
#define U_STRCHR u8_strchr
#define U_SET u8_set
#include "test-strchr.h"
int
main (void)
{
test_strchr ();
/* Check that u8_strchr() does not read past the end of the string. */
{
char *page_boundary = (char *) zerosize_ptr ();
if (page_boundary != NULL)
{
UNIT *mem;
mem = (UNIT *) (page_boundary - 1 * sizeof (UNIT));
mem[0] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 2 * sizeof (UNIT));
mem[0] = 0x50;
mem[1] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 3 * sizeof (UNIT));
mem[0] = 0x50;
mem[1] = 0x50;
mem[2] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 3 * sizeof (UNIT));
mem[0] = 0xC4; mem[1] = 0xA0; /* U+0120 */
mem[2] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 3 * sizeof (UNIT));
mem[0] = 0xC5; mem[1] = 0xA3; /* U+0163 */
mem[2] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
mem[0] = 0x50;
mem[1] = 0x50;
mem[2] = 0x50;
mem[3] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
mem[0] = 0x50;
mem[1] = 0xC5; mem[2] = 0xA3; /* U+0163 */
mem[3] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
ASSERT (u8_strchr (mem, 0x163) == mem + 1);
mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
mem[0] = 0xE3; mem[1] = 0x91; mem[2] = 0x00; /* U+3450 */
mem[3] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
mem[0] = 0xE3; mem[1] = 0x92; mem[2] = 0x96; /* U+3496 */
mem[3] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 5 * sizeof (UNIT));
mem[0] = 0x50;
mem[1] = 0x50;
mem[2] = 0x50;
mem[3] = 0x50;
mem[4] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
mem = (UNIT *) (page_boundary - 5 * sizeof (UNIT));
mem[0] = 0x50;
mem[1] = 0xE3; mem[2] = 0x92; mem[3] = 0x96; /* U+3496 */
mem[4] = 0;
ASSERT (u8_strchr (mem, 0x55) == NULL);
ASSERT (u8_strchr (mem, 0x123) == NULL);
ASSERT (u8_strchr (mem, 0x3456) == NULL);
ASSERT (u8_strchr (mem, 0x23456) == NULL);
ASSERT (u8_strchr (mem, 0x3496) == mem + 1);
}
}
return test_exit_status;
}
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