Re: exception access violation

["Alex R. Mosteo" <devnull@mailinator.com>]

Jade wrote:

> I shuffled around my code and the error is now
> 
> Exception Name        => STORAGE_ERROR
>  Exception Message     => stack overflow (or erroneous memory access)

Stack size is an OS matter, so you must tell gnatlink the parameters that
will go to the system linker. There are a few threads discussing how to do
this with GNAT that you'll easily find in google groups, at least one is
recent.

However, if you're managing large data structures (over 4MB in size), I'd go
for a heap-based solution using controlled types. In my experience, abusing
the stack is a source of headaches sooner or later (specially if you are
doing something portable).

Note that ill-managed recursivity can also be a source of stack overflows,
and you can check this in GNAT with -fstack-check. Without it, stack
overflows are sometimes reported as violations instead.

Regards, Alex.