On 23 Apr 2009, at 23:07, Claus Reinke wrote:
*Main> :t rollDie ~>> (rollDie ~>> rollDie)
rollDie ~>> (rollDie ~>> rollDie) :: Seed -> (Int, Seed)
This is a function. How exactly do you want ghci to show it? When
you figure that out, feel free to make an instance of Show for it.
Just because user programs can't show function internals (they can
show parts of in/out tables, and with sufficient overloading they can
even show approximations of representation) that does not mean
that the language implementation can't show function internals.
Well, than, what would you expect from this:
let {f x = g x;
g 0 = 0;
g n = f (n-1)}
in show f
?
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