Hello all,
Something's always bothered me about map and zipWith for ByteString. Why is it
map :: (Word8 -> Word8) -> ByteString -> ByteString
but
zipWith :: (Word8 -> Word8 -> a) -> ByteString -> ByteString -> [a]
? Obviously they can be transformed into each other with pack/unpack, and as I
understand it, the compiler performs sufficient optimizations so that there's
no performance hit to doing things like (pack $ zipWith xor a b), but it still
seems inconsistent. Is there a deep reason for this?
--
Scott Lawrence
Linux baidar 3.10.9-1-ARCH #1 SMP PREEMPT Wed Aug 21 13:49:35 CEST 2013 x86_64
GNU/Linux
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