Re: [Haskell-cafe] Re: Write Haskell as fast as C.

Ketil Malde writes:

...

data EvidenceCode = IAC | IUG | IFR | NAC | NR | ... deriving Show

Could it be that this derived read instance is somehow very inefficient?

To answer my own question: this is exactly it, ghc derives less than optimal code in this case. Rather than reiterate the case here, I did a quick writeup at http://blog.malde.org/, and would be quite happy about any feedback or suggestions. -k -- If I haven't seen further, it is by standing in the footprints of giants