OpenEuphoria

Re: Bug ?

• Posted by Robert Craig <rds at EMAIL.MSN.COM> Dec 18, 1997
• 541 views

Graeme writes:
> When writing the recursive fill routine (see
> previous post) I tested it before adding the
> "on-screen" check. Actually I was using a
> virtual screen located in a sequence so it was
> an "in-sequence" check. I was greeted by the
>   "called from ..."  message
> endlessly scrolling up the screen. The program
> did not terminate in any length of time I was
> willing to wait. (it was only a 64x64 sequence)

Sounds like you had a case of "infinite recursion".

Eventually you'll run out of memory, but before
that happens, you might have hundreds of thousands
or even a million levels of subroutine calls stacked up.

It takes a while for Euphoria to unwind the entire stack, even
though it will stop displaying messages after a
hundred levels and eventually say "skipping 1000000 levels"
or something.

On my Pentium-150 it took an extra 20 seconds after
the messages first appeared before it finally gave me
the DOS prompt.

Regards,
     Rob Craig
     Rapid Deployment Software