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.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
.\"
.\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\" %%%LICENSE_END
.\"
.\" References consulted:
.\" GNU glibc-2 source code and manual
.\" Dinkumware C library reference http://www.dinkumware.com/
.\" OpenGroup's Single UNIX specification
.\" http://www.UNIX-systems.org/online.html
.\" ISO/IEC 9899:1999
.\"
.TH GETWCHAR 3 2017-09-15 "GNU" "Linux Programmer's Manual"
.SH NAME
getwchar \- read a wide character from standard input
.SH SYNOPSIS
.nf
.B #include <wchar.h>
.PP
.B "wint_t getwchar(void);"
.fi
.SH DESCRIPTION
The
.BR getwchar ()
function is the wide-character equivalent of the
.BR getchar (3)
function.
It reads a wide character from
.I stdin
and returns
it.
If the end of stream is reached, or if
.I ferror(stdin)
becomes true, it returns
.BR WEOF .
If a wide-character conversion error occurs, it sets
.I errno
to
.B EILSEQ
and returns
.BR WEOF .
.PP
For a nonlocking counterpart, see
.BR unlocked_stdio (3).
.SH RETURN VALUE
The
.BR getwchar ()
function returns the next wide-character from
standard input, or
.BR WEOF .
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface Attribute Value
T{
.BR getwchar ()
T} Thread safety MT-Safe
.TE
.sp 1
.SH CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
.SH NOTES
The behavior of
.BR getwchar ()
depends on the
.B LC_CTYPE
category of the
current locale.
.PP
It is reasonable to expect that
.BR getwchar ()
will actually
read a multibyte sequence from standard input and then
convert it to a wide character.
.SH SEE ALSO
.BR fgetwc (3),
.BR unlocked_stdio (3)
.SH COLOPHON
This page is part of release 5.10 of the Linux
.I man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
\%https://www.kernel.org/doc/man\-pages/.
|
