Re: GNAT Problem with variable length Arrays

[Robert Dewar <robert_dewar@my-deja.com>]

In article <rcln3bmirh.fsf@gull.tact.cfmu.eurocontrol.be>,
  Philippe Waroquiers <philippe@gull.tact.cfmu.eurocontrol.be>
wrote:
>
> I encountered once a similar problem (compilation did not
stop).
>
> After some time, I thought to use the switch -gnate -gnatf
> documented in the user's guide section '20.9 Abnormal
Termination'.
> The errors are then output immediately (even if the
compilation
> still does not stop).
>
> A suggestion was given to ACT to slightly modify this section
and
> section title in order to suggest that these switches are also
useful
> in case gnat does not terminate :).


Note that it is NOT a good idea to routinely use -gnate, and
in fact we may move this to a debugging switch. Why? because
it disconnects a lot of useful error handling circuitry (GNAT
needs all the error messages at hand to massage them before
outputting them, if you force output as you go along, you
remove this possibility), but it is indeed useful in the
occasional cases where the compiler goes into a loop or
gets a system exception (it is not useful in the case where
a GNAT BUG DETECTED box is printed).


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