mirror of https://github.com/mkerrisk/man-pages
90 lines
1.9 KiB
Groff
90 lines
1.9 KiB
Groff
.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\" %%%LICENSE_END
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.\"
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.\" References consulted:
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.\" GNU glibc-2 source code and manual
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.\" Dinkumware C library reference http://www.dinkumware.com/
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.\" OpenGroup's Single UNIX specification
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.\" http://www.UNIX-systems.org/online.html
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.\" ISO/IEC 9899:1999
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.\"
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.TH PUTWCHAR 3 2015-03-02 "GNU" "Linux Programmer's Manual"
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.SH NAME
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putwchar \- write a wide character to standard output
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.SH SYNOPSIS
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.nf
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.B #include <wchar.h>
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.sp
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.BI "wint_t putwchar(wchar_t " wc );
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.fi
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.SH DESCRIPTION
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The
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.BR putwchar ()
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function is the wide-character equivalent of the
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.BR putchar (3)
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function.
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It writes the wide character
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.I wc
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to
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.IR stdout .
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If
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.I ferror(stdout)
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becomes true, it returns
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.BR WEOF .
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If a wide character
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conversion error occurs, it sets
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.IR errno
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to
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.B EILSEQ
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and returns
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.BR WEOF .
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Otherwise, it returns
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.IR wc .
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.PP
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For a nonlocking counterpart, see
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.BR unlocked_stdio (3).
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.SH RETURN VALUE
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The
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.BR putwchar ()
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function returns
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.I wc
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if no error occurred, or
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.B WEOF
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to indicate an error.
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.SH ATTRIBUTES
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For an explanation of the terms used in this section, see
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.BR attributes (7).
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.TS
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allbox;
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lb lb lb
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l l l.
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Interface Attribute Value
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T{
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.BR putwchar ()
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T} Thread safety MT-Safe
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.TE
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.SH CONFORMING TO
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POSIX.1-2001, POSIX.1-2008, C99.
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.SH NOTES
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The behavior of
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.BR putwchar ()
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depends on the
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.B LC_CTYPE
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category of the
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current locale.
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.PP
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It is reasonable to expect that
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.BR putwchar ()
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will actually write
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the multibyte sequence corresponding to the wide character
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.IR wc .
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.SH SEE ALSO
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.BR fputwc (3),
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.BR unlocked_stdio (3)
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