Re: GNAT Opinions

[Steven Hovater <nh-ho@mediaone.net>]

One thing to think about - if the application has been written to take advantage
of such things
such as the VADSexec packages - with it's support for the tailorable runtime,
semaphores, mailboxes,
etc. etc. you may find it easier to continue to use the code you have (in it's
present state) and stick
with the Rational compiler (e.g. VADS, or Apex). Depends on what you're trying to
accomplish -
do you have funding from your customer to rehost? (for example). Do you have to
retrain your developers
to use GNAT?

BTW, I do happen to work for Rational, and spend all of my time with the Ada
products in a direct
hands-on onsite support role for my customers.

Cheers,
Steve

choboy@calspan.com wrote:

> My company is currently considering converting a multi-program, multi-
> processor, Solaris-based application (~800K lines of code) written in Verdix
> Ada (SunAda3.0) to a "to be determined" Ada vendor.  GNAT Ada95 is one of
> these compilers under consideration.  I'm looking for opinions from people
> who may have used GNAT in a large-scale development effort such as ours or
> perhaps did some trade studies that resulted in a GNAT go/no-go decision.
> What were your experiences, good or bad?  Why did you choose/not choose GNAT?
>  Would you choose GNAT if you had to do it all over again?  If you paid for
> and used the support from Ada Core Technologies, how was it?  What kind of
> development tools did you use, for example full-screen debuggers?  The
> answers to these and any other opinions you might have would be greatly
> appreciated.
>
> Bob Choboy
>
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--
Steven
Hovater
svh@rational.com
Software Engineering Consultant
Phone/fax:781-676-2565/2500
Rational
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