man-pages/man3/putwchar.3

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.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
.\"
.\" 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.
.\"
.\" 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 PUTWCHAR 3 1999-07-25 "GNU" "Linux Programmer's Manual"
.SH NAME
putwchar \- write a wide character to standard output
.SH SYNOPSIS
.nf
.B #include <wchar.h>
.sp
.BI "wint_t putwchar(wchar_t " wc );
.fi
.SH DESCRIPTION
The
.BR putwchar ()
function is the wide-character equivalent of the
.BR putchar (3)
function.
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It writes the wide character \fIwc\fP to \fIstdout\fP.
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If \fIferror(stdout)\fP becomes true, it returns
.BR WEOF .
If a wide character
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conversion error occurs, it sets \fIerrno\fP to \fBEILSEQ\fP and returns
.BR WEOF .
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Otherwise it returns \fIwc\fP.
.PP
For a non-locking counterpart, see
.BR unlocked_stdio (3).
.SH "RETURN VALUE"
The
.BR putwchar ()
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function returns \fIwc\fP if no error occurred, or
.B WEOF
to indicate an error.
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.SH "CONFORMING TO"
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C99.
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.SH NOTES
The behavior of
.BR putwchar ()
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depends on the
.B LC_CTYPE
category of the
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current locale.
.PP
It is reasonable to expect that
.BR putwchar ()
will actually write
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the multibyte sequence corresponding to the wide character \fIwc\fP.
.SH "SEE ALSO"
.BR fputwc (3),
.BR unlocked_stdio (3)