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



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

NAME
       getwc - get a wide character from a stream

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

       wint_t getwc(FILE *stream);


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

RETURN VALUE
       Refer to fgetwc().

ERRORS
       Refer to fgetwc().

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       Since it may be implemented as a macro, getwc() may treat incorrectly a stream argument with side  effects.  In
       particular,  getwc(*f++)  does not necessarily work as expected.  Therefore, use of this function is not recom-
       mended; fgetwc() should be used instead.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       fgetwc(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>, <wchar.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Stan-
       dard  for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifica-
       tions Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,  Inc  and  The
       Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Stan-
       dard, the original IEEE and The Open Group Standard is the referee  document.  The  original  Standard  can  be
       obtained online at http://www.opengroup.org/unix/online.html .



IEEE/The Open Group                  2003                            GETWC(3P)