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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [string/] [wcsrchr.c] - Rev 273
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/* FUNCTION <<wcsrchr>>---wide-character string scanning operation ANSI_SYNOPSIS #include <wchar.h> wchar_t *wcsrchr(const wchar_t *<[s]>, wchar_t <[c]>); TRAD_SYNOPSIS #include <wchar.h> wchar_t *wcsrchr(<[s]>, <[c]> const wchar_t *<[s]>; wchar_t <[c]>; DESCRIPTION The <<wcsrchr>> function locates the last occurrence of <[c]> in the wide-character string pointed to by <[s]>. The value of <[c]> must be a character representable as a type wchar_t and must be a wide-character code corresponding to a valid character in the current locale. The terminating null wide-character code is considered to be part of the wide-character string. RETURNS Upon successful completion, <<wcsrchr>> returns a pointer to the wide-character code or a null pointer if <[c]> does not occur in the wide-character string. PORTABILITY <<wcsrchr>> is ISO/IEC 9899/AMD1:1995 (ISO C). No supporting OS subroutines are required. */ /* $NetBSD: wcsrchr.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: wcsrchr.c,v 1.2 2000/12/21 05:07:25 itojun Exp */ #include <_ansi.h> #include <stddef.h> #include <wchar.h> wchar_t * _DEFUN (wcsrchr, (s, c), _CONST wchar_t * s _AND wchar_t c) { _CONST wchar_t *p; p = s; while (*p) p++; while (s <= p) { if (*p == c) { /* LINTED interface specification */ return (wchar_t *) p; } p--; } return NULL; }
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