[Haskell-cafe] Re: Diagnosing stack overflow
bos at serpentine.com
Fri Aug 17 18:42:56 EDT 2007
Joe Buehler wrote:
> What is the point in building this huge thunk if it can't be evaluated
> without a stack overflow?
It's not that there's a point to it, it's just the behaviour of foldl.
Hence you shouldn't be using foldl.
GHC's strictness analyser can sometimes save you from yourself if you're
compiling with -O, but it's better to just avoid foldl and use foldr or
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