getwc man page on CentOS

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

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
       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 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
       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 original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			      GETWC(P)
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