0,0 → 1,89 |
/* |
FUNCTION |
<<wmemchr>>---find a wide character in memory |
|
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ANSI_SYNOPSIS |
#include <wchar.h> |
wchar_t *wmemchr(const wchar_t *<[s]>, wchar_t <[c]>, size_t <[n]>); |
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TRAD_SYNOPSIS |
wchar_t *wmemchr(<[s]>, <[c]>, <[n]> |
const wchar_t *<[s]>; |
wchar_t <[c]>; |
size_t <[n]>; |
|
DESCRIPTION |
The <<wmemchr>> function locates the first occurrence of <[c]> in the |
initial <[n]> wide characters of the object pointed to be <[s]>. This |
function is not affected by locale and all wchar_t values are treated |
identically. The null wide character and wchar_t values not |
corresponding to valid characters are not treated specially. |
|
If <[n]> is zero, <[s]> must be a valid pointer and the function |
behaves as if no valid occurrence of <[c]> is found. |
|
RETURNS |
The <<wmemchr>> function returns a pointer to the located |
wide character, or a null pointer if the wide character does not occur |
in the object. |
|
PORTABILITY |
<<wmemchr>> is ISO/IEC 9899/AMD1:1995 (ISO C). |
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No supporting OS subroutines are required. |
*/ |
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/* $NetBSD: wmemchr.c,v 1.1 2000/12/23 23:14:37 itojun Exp $ */ |
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/*- |
* Copyright (c)1999 Citrus Project, |
* 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. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. |
* |
* citrus Id: wmemchr.c,v 1.2 2000/12/20 14:08:31 itojun Exp |
*/ |
|
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#include <_ansi.h> |
#include <wchar.h> |
|
wchar_t * |
_DEFUN (wmemchr, (s, c, n), |
_CONST wchar_t * s _AND |
wchar_t c _AND |
size_t n) |
{ |
size_t i; |
|
for (i = 0; i < n; i++) |
{ |
if (*s == c) |
{ |
/* LINTED const castaway */ |
return (wchar_t *) s; |
} |
s++; |
} |
return NULL; |
} |