sunos man page for getwc

getwc(3C)						   Standard C Library Functions 						 getwc(3C)

NAME
       getwc - get wide character from a stream

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

       wint_t getwc(FILE *stream);

DESCRIPTION
       The getwc() function is equivalent to fgetwc(3C), 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 VALUES
       Refer to fgetwc(3C).

ERRORS
       Refer to fgetwc(3C).

USAGE
       This interface is provided to align with some current implementations and with possible future ISO standards.

       Because it may be implemented as a macro, getwc() may treat incorrectly a stream argument with side effects.   In  particular,  getwc(*f++)
       may not work as expected.  Therefore, use of this function is not recommended; fgetwc(3C) should be used instead.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       fgetwc(3C), attributes(5), standards(5)

SunOS 5.10							    24 Jul 2002 							 getwc(3C)