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+'\" t
+.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
+.\"
+.\" SPDX-License-Identifier: GPL-2.0-or-later
+.\"
+.\" 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 2023-07-20 "Linux man-pages 6.05.01"
+.SH NAME
+putwchar \- write a wide character to standard output
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <wchar.h>
+.PP
+.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.
+It writes the wide character
+.I wc
+to
+.IR stdout .
+If
+.I ferror(stdout)
+becomes true, it returns
+.BR WEOF .
+If a wide character
+conversion error occurs, it sets
+.I errno
+to
+.B EILSEQ
+and returns
+.BR WEOF .
+Otherwise, it returns
+.IR wc .
+.PP
+For a nonlocking counterpart, see
+.BR unlocked_stdio (3).
+.SH RETURN VALUE
+The
+.BR putwchar ()
+function returns
+.I wc
+if no error occurred, or
+.B WEOF
+to indicate an error.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.na
+.nh
+.BR putwchar ()
+T}	Thread safety	MT-Safe
+.TE
+.sp 1
+.SH STANDARDS
+C11, POSIX.1-2008.
+.SH HISTORY
+POSIX.1-2001, C99.
+.SH NOTES
+The behavior of
+.BR putwchar ()
+depends on the
+.B LC_CTYPE
+category of the
+current locale.
+.PP
+It is reasonable to expect that
+.BR putwchar ()
+will actually write
+the multibyte sequence corresponding to the wide character
+.IR wc .
+.SH SEE ALSO
+.BR fputwc (3),
+.BR unlocked_stdio (3)