putwc man page on Archlinux

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PUTWC(3P)		   POSIX Programmer's Manual		     PUTWC(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
       putwc — put a wide character on a stream

SYNOPSIS
       #include <stdio.h>
       #include <wchar.h>

       wint_t putwc(wchar_t wc, FILE *stream);

DESCRIPTION
       The functionality described on this reference page is aligned with  the
       ISO C  standard.	 Any  conflict between the requirements described here
       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2008
       defers to the ISO C standard.

       The putwc() function shall be equivalent to fputwc(), except that if it
       is implemented as a macro it may evaluate stream more than once, so the
       argument should never be an expression with side-effects.

RETURN VALUE
       Refer to fputwc().

ERRORS
       Refer to fputwc().

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       Since  it  may  be  implemented	as a macro, putwc() may treat a stream
       argument with side-effects incorrectly. In  particular,	putwc(wc,*f++)
       need  not work correctly. Therefore, use of this function is not recom‐
       mended; fputwc() should be used instead.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       Section 2.5, Standard I/O Streams, fputwc()

       The Base Definitions volume of POSIX.1‐2008, <stdio.h>, <wchar.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal and Electronics Engineers,  Inc  and	 The  Open  Group.   (This  is
       POSIX.1-2008  with  the	2013  Technical Corrigendum 1 applied.) In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained	online
       at http://www.unix.org/online.html .

       Any  typographical  or  formatting  errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files  to  man page format. To report such errors, see https://www.ker‐
       nel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2013			     PUTWC(3P)
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