kolibrios/programs/develop/open watcom/trunk/clib/memory/fmemchr.c
Sergey Semyonov (Serge) 836c97f0ac Clib string & memory functions
git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-06-26 00:54:22 +00:00

57 lines
2.0 KiB
C

/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Implementation of fmemchr().
*
****************************************************************************/
#include "variety.h"
#include <stddef.h>
#include "xstring.h"
/* locate the first occurrence of c in the initial n characters of the
object pointed to by s.
If the character c is not found, NULL is returned.
*/
#undef _fmemchr
_WCRTLINK void _WCFAR *_fmemchr( const void _WCFAR *vs, int c, size_t n )
{
#if defined(__INLINE_FUNCTIONS__)
return( _inline__fmemchr( vs, c, n ) );
#else
const char _WCFAR *s = vs;
while( n ) {
if( *s == c ) return( (void _WCFAR *)s );
++s;
--n;
}
return( NULL );
#endif
}