[Haskell-beginners] Space leak debugging

Philip Scott haskell-beginners at foo.me.uk
Fri Jun 4 04:12:56 EDT 2010

Hi Daniel,

>> It runs forever, which is fine, but it doesn't run in constant space. In
>> fact, it gobbles up all the memory until it can't get any more and dies.
>> I can't for the life of me work out what is going on, surely there is
>> some enormous thunk being built up somewhere,
> Yep.
> chunkFiller 0 bs
> ~>  chunkFiller (0+1) bs
> ~>  chunkFiller ((0+1)+1) bs
> ~>  chunkFiller (((0+1)+1)+1) bs
> ~>  ...
You are entirely right, thank you! I was totally fixated on the 
bytestring, I never even considered it might be something to do with my 
inncoent looking accumulator :)

You guys are awesome.

- Phil

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