Re: Dispatching in Ada95

["James A. Squire" <m193884@CSEHP3.MDC.COM>]

On Wed, 24 Apr 1996 22:58:40, Robert Dewar <dewar@CS.NYU.EDU> wrote:

> James Squire said
>
> "So, you do compromise and use the use clause, then.  That was my whole
> question.  The use clause *is* essential to dispatching."
>
> This is quite wrong, the use clause has to do with direct visibility and
> whether you need to use dots. It does not have anything to do with
> dispatching.

Asked and answered already.  Apparently you missed the following
exchange on the 23rd:

> On, Tue, 23 Apr 1996 04:00:50 GMT, Tucker Taft
> <stt@HENNING.CAMB.INMET.COM>
>
> > : So, you do compromise and use the use clause, then.  That was my whole
> > : question.  The use clause *is* essential to dispatching.
> >
> > No, the use clause is irrelevant to dispatching.  You can write P.F(X)
> > in a dispatching call.  Furthermore, presuming X is of type T'Class,
> > then only the "F" on "T" needs to be visible.  The "F" on T1, T2, etc.,
> > need not be visible.
>
> A couple of others have informed me of this also.  This is one fact in
> all of this that I literally did not know.  I'm glad to hear that you
> don't have use the use clause at all in order to use dispatching.  Of
> course, I probably should have guessed as much as soon as someone
> informed me that visibility to all dispatchable routines is not needed
> at compile time - the other fact that I literally did not know.
--
James Squire
MDA Avionics Tools & Processes
ja_squire@csehp3.mdc.com
"one of these days I'm going to better myself by going to Knight school"
"You'll be a web knight instead of a web page!"