| 1 |
148 |
jeremybenn |
/*-
|
| 2 |
|
|
* Copyright (c) 2002 Tim J. Robbins.
|
| 3 |
|
|
* All rights reserved.
|
| 4 |
|
|
*
|
| 5 |
|
|
* Redistribution and use in source and binary forms, with or without
|
| 6 |
|
|
* modification, are permitted provided that the following conditions
|
| 7 |
|
|
* are met:
|
| 8 |
|
|
* 1. Redistributions of source code must retain the above copyright
|
| 9 |
|
|
* notice, this list of conditions and the following disclaimer.
|
| 10 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
| 11 |
|
|
* notice, this list of conditions and the following disclaimer in the
|
| 12 |
|
|
* documentation and/or other materials provided with the distribution.
|
| 13 |
|
|
*
|
| 14 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
| 15 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 16 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 17 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
| 18 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 19 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
| 20 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| 21 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
| 22 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
| 23 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 24 |
|
|
* SUCH DAMAGE.
|
| 25 |
|
|
*/
|
| 26 |
|
|
|
| 27 |
|
|
/*
|
| 28 |
|
|
FUNCTION
|
| 29 |
|
|
<<getwchar>>---read a wide character from standard input
|
| 30 |
|
|
|
| 31 |
|
|
INDEX
|
| 32 |
|
|
getwchar
|
| 33 |
|
|
INDEX
|
| 34 |
|
|
_getwchar_r
|
| 35 |
|
|
|
| 36 |
|
|
ANSI_SYNOPSIS
|
| 37 |
|
|
#include <wchar.h>
|
| 38 |
|
|
wint_t getwchar(void);
|
| 39 |
|
|
|
| 40 |
|
|
wint_t _getwchar_r(struct _reent *<[reent]>);
|
| 41 |
|
|
|
| 42 |
|
|
TRAD_SYNOPSIS
|
| 43 |
|
|
#include <wchar.h>
|
| 44 |
|
|
wint_t getwchar();
|
| 45 |
|
|
|
| 46 |
|
|
wint_t _getwchar_r(<[reent]>)
|
| 47 |
|
|
char * <[reent]>;
|
| 48 |
|
|
|
| 49 |
|
|
DESCRIPTION
|
| 50 |
|
|
<<getwchar>> function or macro is the wide character equivalent of
|
| 51 |
|
|
the <<getchar>> function. You can use <<getwchar>> to get the next
|
| 52 |
|
|
wide character from the standard input stream. As a side effect,
|
| 53 |
|
|
<<getwchar>> advances the standard input's current position indicator.
|
| 54 |
|
|
|
| 55 |
|
|
The alternate function <<_getwchar_r>> is a reentrant version. The
|
| 56 |
|
|
extra argument <[reent]> is a pointer to a reentrancy structure.
|
| 57 |
|
|
|
| 58 |
|
|
RETURNS
|
| 59 |
|
|
The next wide character cast to <<wint_t>>, unless there is no more
|
| 60 |
|
|
data, or the host system reports a read error; in either of these
|
| 61 |
|
|
situations, <<getwchar>> returns <<WEOF>>.
|
| 62 |
|
|
|
| 63 |
|
|
You can distinguish the two situations that cause an <<WEOF>> result by
|
| 64 |
|
|
using `<<ferror(stdin)>>' and `<<feof(stdin)>>'.
|
| 65 |
|
|
|
| 66 |
|
|
PORTABILITY
|
| 67 |
|
|
C99
|
| 68 |
|
|
*/
|
| 69 |
|
|
|
| 70 |
|
|
#include <_ansi.h>
|
| 71 |
|
|
#include <reent.h>
|
| 72 |
|
|
#include <stdio.h>
|
| 73 |
|
|
#include <wchar.h>
|
| 74 |
|
|
#include "local.h"
|
| 75 |
|
|
|
| 76 |
|
|
#undef getwchar
|
| 77 |
|
|
|
| 78 |
|
|
wint_t
|
| 79 |
|
|
_DEFUN (_getwchar_r, (ptr),
|
| 80 |
|
|
struct _reent *ptr)
|
| 81 |
|
|
{
|
| 82 |
|
|
return _fgetwc_r (ptr, stdin);
|
| 83 |
|
|
}
|
| 84 |
|
|
|
| 85 |
|
|
/*
|
| 86 |
|
|
* Synonym for fgetwc(stdin).
|
| 87 |
|
|
*/
|
| 88 |
|
|
wint_t
|
| 89 |
|
|
_DEFUN_VOID (getwchar)
|
| 90 |
|
|
{
|
| 91 |
|
|
_REENT_SMALL_CHECK_INIT (_REENT);
|
| 92 |
|
|
return fgetwc (stdin);
|
| 93 |
|
|
}
|
