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
Data.List.foldl' instead.
<b
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