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 recommended; 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 Electrical 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.kernel.org/doc/man-pages/reporting_bugs.html .