Re: F9X twister & ADA (was: n-dim'l vectors)

[kilgallen@eisner.decus.org (Larry Kilgallen)]

In article <cEKI4.1694$fV.133027@bgtnsc05-news.ops.worldnet.att.net>, "James Giles" <jamesgiles@worldnet.att.net> writes:

> In any case, I don't intend to get into a long drawn out argument with
> Ada supporters about their favorite language.  My interest is in what
> exception handling might eventually be added to Fortran.  It is often
> recommended to model the feature on Ada.  I think the committee
> should consider addressing the shortcomings of Ada as well as its
> advantages before just blanket adoption of the feature.

Actually, I prefer the VMS exception model, which is a superset of
the Ada model.  Look at the VMS model if you are considering the
breadth of possibilities.  Interesting little nuances include the
question of what happens when you get an exception while handling
an exception (which of the stack-based handlers are eligible to
take charge) along with the whole issue of whether you can "continue"
right where you encountered the exception (after fixing up the source
of the problem).

Steve Lionel of Compaq can probably speak to how well this fits
into Fortran.