mirror of
https://sourceware.org/git/glibc.git
synced 2024-09-20 00:19:57 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <wchar.h>
|
|
|
|
|
|
/* Compare no more than N characters of S1 and S2,
|
|
returning less than, equal to or greater than zero
|
|
if S1 is lexicographically less than, equal to or
|
|
greater than S2. */
|
|
int
|
|
wcsncmp (s1, s2, n)
|
|
const wchar_t *s1;
|
|
const wchar_t *s2;
|
|
size_t n;
|
|
{
|
|
wint_t c1 = L'\0';
|
|
wint_t c2 = L'\0';
|
|
|
|
if (n >= 4)
|
|
{
|
|
size_t n4 = n >> 2;
|
|
do
|
|
{
|
|
c1 = (wint_t) *s1++;
|
|
c2 = (wint_t) *s2++;
|
|
if (c1 == L'\0' || c1 != c2)
|
|
return c1 - c2;
|
|
c1 = (wint_t) *s1++;
|
|
c2 = (wint_t) *s2++;
|
|
if (c1 == L'\0' || c1 != c2)
|
|
return c1 - c2;
|
|
c1 = (wint_t) *s1++;
|
|
c2 = (wint_t) *s2++;
|
|
if (c1 == L'\0' || c1 != c2)
|
|
return c1 - c2;
|
|
c1 = (wint_t) *s1++;
|
|
c2 = (wint_t) *s2++;
|
|
if (c1 == L'\0' || c1 != c2)
|
|
return c1 - c2;
|
|
} while (--n4 > 0);
|
|
n &= 3;
|
|
}
|
|
|
|
while (n > 0)
|
|
{
|
|
c1 = (wint_t) *s1++;
|
|
c2 = (wint_t) *s2++;
|
|
if (c1 == L'\0' || c1 != c2)
|
|
return c1 - c2;
|
|
n--;
|
|
}
|
|
|
|
return c1 - c2;
|
|
}
|