My comments inlined below...
On 9/25/07, Brian Hulley <[EMAIL PROTECTED]> wrote:
> let
> shiftLeftByThree = shiftL' 3
> in
> map shiftLeftByThree [10, 78, 99, 102]
let shiftLeftByThree = (`shiftL` 3) in ...
> Can anyone think of an example where the current desugaring of infix
> arguments gives the correct order when the function is used in a postfix
> application? (apart from commutative functions of course!)
A couple off the top of my head:
(:) :: a -> [a] -> [a]
<|> :: MonadPlus m => m a -> m a -> m a
(how do you define "correct" in this case, anyways?)
Even for "shift" I can think of several reasons to want to use it both
ways; for example, unpacking a bitfield from a Word16:
unpack v = (getM 0 255, getM 8 1, getM 9 31, getM 14 3)
where getM = (.&.) . (shiftR v)
-- ryan
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