[Haskell-cafe] Some random newbie questions

Ross Paterson ross at soi.city.ac.uk
Fri Jan 7 10:28:43 EST 2005

On Fri, Jan 07, 2005 at 08:49:32AM -0500, Paul Hudak wrote:
> I taught our FP class this fall using Hugs, but in the end wish that I 
> had used GHC.  There are lots of little reasons for this, but a big one 
> was a problem with unpredictable space utilization.  I don't have the 
> examples at my fingertips, but there were simple variations of the same 
> program that, by all common-sense reasoning, should have behaved in the 
> opposite way with respect to space than what they exhibited.

Concrete examples would be interesting, especially if they didn't involve
the graphic library.

> Indeed, 
> the problem that you report in your "Sierpinkski Carpet" may likely be a 
> problem with Hugs, and not the graphics lib, and Jacob Nelson's message 
> seems to bear this out.

No: it runs under GHCi, but it uses 16MB.  Hugs has a 2MB heap by default
(the size is measured in 8-byte cells).

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