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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [getwchar.c] - Rev 232
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/*- * Copyright (c) 2002 Tim J. Robbins. * 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. */ /* FUNCTION <<getwchar>>---read a wide character from standard input INDEX getwchar INDEX _getwchar_r ANSI_SYNOPSIS #include <wchar.h> wint_t getwchar(void); wint_t _getwchar_r(struct _reent *<[reent]>); TRAD_SYNOPSIS #include <wchar.h> wint_t getwchar(); wint_t _getwchar_r(<[reent]>) char * <[reent]>; DESCRIPTION <<getwchar>> function or macro is the wide character equivalent of the <<getchar>> function. You can use <<getwchar>> to get the next wide character from the standard input stream. As a side effect, <<getwchar>> advances the standard input's current position indicator. The alternate function <<_getwchar_r>> is a reentrant version. The extra argument <[reent]> is a pointer to a reentrancy structure. RETURNS The next wide character cast to <<wint_t>>, unless there is no more data, or the host system reports a read error; in either of these situations, <<getwchar>> returns <<WEOF>>. You can distinguish the two situations that cause an <<WEOF>> result by using `<<ferror(stdin)>>' and `<<feof(stdin)>>'. PORTABILITY C99 */ #include <_ansi.h> #include <reent.h> #include <stdio.h> #include <wchar.h> #include "local.h" #undef getwchar wint_t _DEFUN (_getwchar_r, (ptr), struct _reent *ptr) { return _fgetwc_r (ptr, stdin); } /* * Synonym for fgetwc(stdin). */ wint_t _DEFUN_VOID (getwchar) { _REENT_SMALL_CHECK_INIT (_REENT); return fgetwc (stdin); }
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