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Linux 2.6 - man page for getwc (linux section 3posix)

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

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 evaluate stream more than once, so the argument should never be an  expres-
       sion 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 recommended; 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, Standard for Information Technology  --  Portable	Operating  System
       Interface  (POSIX), The Open Group Base Specifications 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
       Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					 GETWC(P)


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