87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/* Copyright (C) 1996, 1997, 2011 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
|
|
|
|
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/>. */
|
|
|
|
#include <wchar.h>
|
|
|
|
#ifndef WMEMCMP
|
|
# define WMEMCMP wmemcmp
|
|
#endif
|
|
|
|
int
|
|
WMEMCMP (s1, s2, n)
|
|
const wchar_t *s1;
|
|
const wchar_t *s2;
|
|
size_t n;
|
|
{
|
|
register wchar_t c1;
|
|
register wchar_t c2;
|
|
|
|
while (n >= 4)
|
|
{
|
|
c1 = s1[0];
|
|
c2 = s2[0];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
c1 = s1[1];
|
|
c2 = s2[1];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
c1 = s1[2];
|
|
c2 = s2[2];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
c1 = s1[3];
|
|
c2 = s2[3];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
s1 += 4;
|
|
s2 += 4;
|
|
n -= 4;
|
|
}
|
|
|
|
if (n > 0)
|
|
{
|
|
c1 = s1[0];
|
|
c2 = s2[0];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
++s1;
|
|
++s2;
|
|
--n;
|
|
}
|
|
if (n > 0)
|
|
{
|
|
c1 = s1[0];
|
|
c2 = s2[0];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
++s1;
|
|
++s2;
|
|
--n;
|
|
}
|
|
if (n > 0)
|
|
{
|
|
c1 = s1[0];
|
|
c2 = s2[0];
|
|
if (c1 - c2 != 0)
|
|
return c1 > c2 ? 1 : -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|