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/*
* Copyright (C) 2008-2020 Free Software Foundation, Inc.
* Written by Simon Josefsson and Bruno Haible
*
* 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/>. */
#include <config.h>
#include "memcasecmp.h"
#include <string.h>
#include "zerosize-ptr.h"
#include "macros.h"
int
main (void)
{
/* Test equal / not equal distinction. */
void *page_boundary1 = zerosize_ptr ();
void *page_boundary2 = zerosize_ptr ();
if (page_boundary1 && page_boundary2)
ASSERT (memcasecmp (page_boundary1, page_boundary2, 0) == 0);
ASSERT (memcasecmp ("foo", "foobar", 2) == 0);
ASSERT (memcasecmp ("foo", "foobar", 3) == 0);
ASSERT (memcasecmp ("foo", "foobar", 4) != 0);
ASSERT (memcasecmp ("foo", "bar", 1) != 0);
ASSERT (memcasecmp ("foo", "bar", 3) != 0);
/* Test less / equal / greater distinction. */
ASSERT (memcasecmp ("foo", "moo", 4) < 0);
ASSERT (memcasecmp ("moo", "foo", 4) > 0);
ASSERT (memcasecmp ("oomph", "oops", 3) < 0);
ASSERT (memcasecmp ("oops", "oomph", 3) > 0);
ASSERT (memcasecmp ("foo", "foobar", 4) < 0);
ASSERT (memcasecmp ("foobar", "foo", 4) > 0);
/* Test embedded NULs. */
ASSERT (memcasecmp ("1\0", "2\0", 2) < 0);
ASSERT (memcasecmp ("2\0", "1\0", 2) > 0);
ASSERT (memcasecmp ("x\0""1", "x\0""2", 3) < 0);
ASSERT (memcasecmp ("x\0""2", "x\0""1", 3) > 0);
/* The Next x86 OpenStep bug shows up only when comparing 16 bytes
or more and with at least one buffer not starting on a 4-byte boundary.
William Lewis provided this test program. */
{
char foo[21];
char bar[21];
int i;
for (i = 0; i < 4; i++)
{
char *a = foo + i;
char *b = bar + i;
strcpy (a, "--------01111111");
strcpy (b, "--------10000000");
ASSERT (memcasecmp (a, b, 16) < 0);
}
}
return 0;
}
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