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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [string/] [wmemchr.c] - Rev 307
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/* FUNCTION <<wmemchr>>---find a wide character in memory ANSI_SYNOPSIS #include <wchar.h> wchar_t *wmemchr(const wchar_t *<[s]>, wchar_t <[c]>, size_t <[n]>); 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). No supporting OS subroutines are required. */ /* $NetBSD: wmemchr.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: wmemchr.c,v 1.2 2000/12/20 14:08:31 itojun Exp */ #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; }
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