Subject: Re: strict typechecking on kernel compiles...
To: None <current-users@NetBSD.ORG>
From: Danny Thomas <>
List: current-users
Date: 07/24/1995 07:53:50
Jonathan Stone <> writes:
>It's also the case that using the ellipsis in a prototype can result
>in a less-efficient argument-passing sequence at run-time, on some
it's also the case that *not* using prototypes for function definitions
with a fixed-length/type parameter list can make a compiler uses
inefficient but general stack-based calling sequences. Yes it is known that
variable arguments may exact a time/space penalty compared to the
optimizations otherwise possible, but I'd bet there are considerably fewer
uses of functions with variable arguments...

Danny Thomas

PS ANSI C requires the use of ellipsis prototype *definitions* for all
functions with variable arguments. I suspect gcc is tolerant of this for
pragmatic reasons.