On Mon, 26 Jan 2009 22:01:42 -0500, Norman Ramsey wrote:
>> I gather this isn't supposed to happen:
> >
> >
> > qc-- -globals -o ACKERMAN ACKERMAN.c-- This can't happen: Asked for
> > temporary in space `general-purpose temporaries' with unsupported
> > width 64 Fatal error: exception Impossible.Impossible("Asked for
> > temporary in space `general-purpose temporaries' with unsupported
> > width 64") make: *** [ACKERMAN] Error 2
> > hend...@lovesong:~/dv/lang/a68h/workspace$
> >
> > It might be useful if a this-can't-happen were to produce the source
> > line number of the construct occasioning the problem.
>
> this-can't-happen means that the compiler has become so sick that it
> can't continue. source coordinates are but a distant memory. We usually
> get a stack trace, which is useful...
>
> > ACKERMAN.c-- is 483 lines. Do you want a copy?
>
> Yes. Though I can't see doing anything about it until after the ICFP
> deadline (March 2). I can guess where this message is coming from, and
> the code is foul. Very foul.
Well, I have more than enough urgent, important, other things to do to
keep me busy until then; I can wait.
But there's a part of me that's itching to go on. I can't promise to
have the time to go through it, but is there any chance you could direct
me as to where to look in the very foul source code? References to any
available documents explaining how the code is intended to work would be
helpful, too. If nothing else I'll learn something while waiting, even
if only how difficult it still is to read other people's programs.
-- hendrik
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