0,0 → 1,91 |
/* |
FUNCTION |
<<wcsncmp>>---compare part of two wide-character strings |
|
ANSI_SYNOPSIS |
#include <wchar.h> |
int wcsncmp(const wchar_t *<[s1]>, const wchar_t *<[s2]>, size_t <[n]>); |
|
TRAD_SYNOPSIS |
int wcsncmp(<[s1]>, <[s2]>, <[n]> |
const wchar_t *<[s1]>; |
const wchar_t *<[s2]>; |
size_t <[n]>; |
|
DESCRIPTION |
The <<wcsncmp>> function compares not more than <[n]> wide-character |
codes (wide-character codes that follow a null wide-character code are |
not compared) from the array pointed to by <[s1]> to the array 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 successful completion, <<wcsncmp>> returns an integer greater than, |
equal to or less than 0, if the possibly null-terminated array pointed |
to by <[s1]> is greater than, equal to or less than the possibly |
null-terminated array pointed to by <[s2]> respectively. |
|
PORTABILITY |
<<wcsncmp>> is ISO/IEC 9899/AMD1:1995 (ISO C). |
|
No supporting OS subroutines are required. |
*/ |
|
/* $NetBSD$ */ |
|
/* |
* Copyright (c) 1989, 1993 |
* The Regents of the University of California. All rights reserved. |
* |
* 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> |
|
int |
_DEFUN (wcsncmp, (s1, s2, n), |
_CONST wchar_t * s1 _AND |
_CONST wchar_t * s2 _AND |
size_t n) |
{ |
|
if (n == 0) |
return (0); |
do |
{ |
if (*s1 != *s2++) |
{ |
return (*s1 - *--s2); |
} |
if (*s1++ == 0) |
break; |
} |
while (--n != 0); |
return (0); |
} |