-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="printf.3S.html">printf(3S)</A></STRONG>, <STRONG>vprintf(3S)</STRONG>
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ The XSI Curses standard, Issue 4 describes these functions. The func-
+ tion <STRONG>vwprintw</STRONG> is marked TO BE WITHDRAWN, and is to be replaced by a
+ function <STRONG>vw_printw</STRONG> using the <STRONG><stdarg.h></STRONG> interface. The Single Unix
+ Specification, Version 2 states that <STRONG>vw_printw</STRONG> is preferred to <STRONG>vw-</STRONG>
+ <STRONG>printw</STRONG> since the latter requires including <STRONG><varargs.h></STRONG>, which cannot be
+ used in the same file as <STRONG><stdarg.h></STRONG>. This implementation uses
+ <STRONG><stdarg.h></STRONG> for both, because that header is included in <STRONG><curses.h</STRONG>>.
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG>printf(3)</STRONG>, <STRONG>vprintf(3)</STRONG>.