forked from KolibriOS/kolibrios
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
|
/*
|
||
|
|
FUNCTION
|
||
|
|
<<wcscmp>>---compare two wide-character strings
|
||
|
|
|
||
|
|
ANSI_SYNOPSIS
|
||
|
|
#include <wchar.h>
|
||
|
|
int wcscmp(const wchar_t *<[s1]>, *<[s2]>);
|
||
|
|
|
||
|
|
TRAD_SYNOPSIS
|
||
|
|
int wcscmp(<[s1]>, <[s2]>
|
||
|
|
const wchar_t *<[s1]>, <[s2]>;
|
||
|
|
|
||
|
|
DESCRIPTION
|
||
|
|
The <<wcscmp>> function compares the wide-character string pointed to
|
||
|
|
by <[s1]> to the wide-character string pointed to by <[s2]>.
|
||
|
|
|
||
|
|
The sign of a non-zero return value is determined by the sign of the
|
||
|
|
difference between the values of the first pair of wide-character codes
|
||
|
|
that differ in the objects being compared.
|
||
|
|
|
||
|
|
RETURNS
|
||
|
|
Upon completion, <<wcscmp>> returns an integer greater than, equal to
|
||
|
|
or less than 0, if the wide-character string pointed to by <[s1]> is
|
||
|
|
greater than, equal to or less than the wide-character string pointed
|
||
|
|
to by <[s2]> respectively.
|
||
|
|
|
||
|
|
PORTABILITY
|
||
|
|
<<wcscmp>> is ISO/IEC 9899/AMD1:1995 (ISO C).
|
||
|
|
|
||
|
|
No supporting OS subroutines are required.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* $NetBSD$ */
|
||
|
|
|
||
|
|
/*-
|
||
|
|
* Copyright (c) 1990, 1993
|
||
|
|
* The Regents of the University of California. All rights reserved.
|
||
|
|
*
|
||
|
|
* This code is derived from software contributed to Berkeley by
|
||
|
|
* Chris Torek.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. Neither the name of the University nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <_ansi.h>
|
||
|
|
#include <wchar.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Compare strings.
|
||
|
|
*/
|
||
|
|
int
|
||
|
|
_DEFUN (wcscmp, (s1, s2),
|
||
|
|
_CONST wchar_t * s1 _AND
|
||
|
|
_CONST wchar_t * s2)
|
||
|
|
{
|
||
|
|
|
||
|
|
while (*s1 == *s2++)
|
||
|
|
if (*s1++ == 0)
|
||
|
|
return (0);
|
||
|
|
return (*s1 - *--s2);
|
||
|
|
}
|