sequence causing stack overflow on pretty small lists
mail at nh2.me
Mon Aug 26 11:16:41 CEST 2013
As an example that this actually makes problems in production code, I
found this in the wildlife:
-- Do not use a forM here as you use too much stack space
bad <- (\f -> foldM f  (Map.toList status)) $ \seen (i,v) -> ...
I could bet that there is a lot of code around on which we rely, which
has the same problem but does not go that far in customisation.
More information about the Libraries