newlib-cygwin/newlib/libc/string/wcspbrk.c

88 lines
2.6 KiB
C

/*
FUNCTION
<<wcspbrk>>----scan wide-character string for a wide-character code
ANSI_SYNOPSIS
#include <wchar.h>
wchar_t *wcspbrk(const wchar_t *<[s]>, const wchar_t *<[set]>);
TRAD_SYNOPSIS
wchar_t *wcspbrk(<[s]>, <[set]>
const wchar_t *<[s]>;
const wchar_t *<[set]>;
DESCRIPTION
The <<wcspbrk>> function locates the first occurrence in the
wide-character string pointed to by <[s]> of any wide-character code
from the wide-character string pointed to by <[set]>.
RETURNS
Upon successful completion, <<wcspbrk>> returns a pointer to the
wide-character code or a null pointer if no wide-character code from
<[set]> occurs in <[s]>.
PORTABILITY
<<wcspbrk>> is ISO/IEC 9899/AMD1:1995 (ISO C).
No supporting OS subroutines are required.
*/
/* $NetBSD: wcspbrk.c,v 1.1 2000/12/23 23:14:37 itojun Exp $ */
/*-
* 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: wcspbrk.c,v 1.2 2000/12/21 05:07:25 itojun Exp
*/
#include <_ansi.h>
#include <stddef.h>
#include <wchar.h>
wchar_t *
_DEFUN (wcspbrk, (s, set),
_CONST wchar_t * s _AND
_CONST wchar_t * set)
{
_CONST wchar_t *p;
_CONST wchar_t *q;
p = s;
while (*p)
{
q = set;
while (*q)
{
if (*p == *q)
{
/* LINTED interface specification */
return (wchar_t *) p;
}
q++;
}
p++;
}
return NULL;
}