Re: Dynamic redispatching

[Ted Dennison <dennison@telepath.com>]

In article <38875677.950A6FCA@averstar.com>,
  Tucker Taft <stt@averstar.com> wrote:

> You are trying to make this dispatching-on-result happen in a "return"
> statement, but at that point, there is no context from which to get
> the tag to control the dispatching.

I was figuring it would take the tag of the ultimate object transitively
through return calls. I guess not. :-(

> However, returning composite objects as results is generally less
> efficient than using OUT parameters (because OUT parameters can use
> pass-by-reference). So unless there is some compelling reason for
> these to be functions (such as they have discriminants whose value is
> not known to the caller, or they will often be combined with other
> function calls in the middle of a more complex expression), you might
> want to make them all procedures.

There isn't, so I am doing just that. Thanks.

--
T.E.D.

http://www.telepath.com/~dennison/Ted/TED.html


Sent via Deja.com http://www.deja.com/
Before you buy.