Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!uxc!uxc.cso.uiuc.edu!uxg.cso.uiuc.edu!uxa.cso.uiuc.edu!emb90619
From: emb90619@uxa.cso.uiuc.edu
Newsgroups: comp.sys.mac.programmer
Subject: Re: MPW 3.0: Booleans and var #of args.
Message-ID: <227700004@uxa.cso.uiuc.edu>
Date: 1 Feb 89 05:40:00 GMT
References: <3532@mit-amt>
Lines: 16
Nf-ID: #R:mit-amt:3532:uxa.cso.uiuc.edu:227700004:000:793
Nf-From: uxa.cso.uiuc.edu!emb90619    Jan 31 23:40:00 1989


The problem with your Boolean assignment is the -w2 flag.  This flag creates a
condition where the compiler warns you of additional constructs which may be
ok, but look fishy.  enum types are ints (longs) in 3.0 ALWAYS.  They are
converted to short when sent to toolbox routines requiring shorts.

To define a variable length argument, you use the elipsis (...) in the argument
list.  This must be three periods, you CANNOT use the mac option-; keystroke.
So,
	void foo(...);
is a prototype for a function foo, returning no value and having a variable
length of arguments.  Of course, no type checking will occur within the
variable list, then.  If you have some variables you want checked, you can put
the elipsis later.  For example,
	void foo(short a, long *b, ...);
is a proper prototype.