[Haskell-cafe] Re: Difficult memory leak in array processing

[apfelmus at quantentunnel.de]

Udo Stenzel wrote:
> Niko Korhonen wrote:
>> I have the following code whose purpose is to add dither (noise) to a given
>> array. The code looks very straightforward but apparently it has a memory leak
>> somewhere.
> 
> No, it doesn't.  It can't, because it doesn't even compile.  After
> correcting the obvious
> 
>>         (lo, hi) <- getBounds buf
> 
> to
> 
>           let (lo,hi) = bounds buf

The interface changed between GHC 6.4.2 and 6.6.
But no honorable Haskell paladin would ever dare to use UndeadArrays.

> it just works and needs 40MB plus epsilon.  Your problem has to be
> somewhere else.

The strictness analyzer likes Udo more than Niko, does it?

Regards,
apfelmus