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



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


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 .



IEEE/The Open Group                  2013                             PUTWC(3)
