"Andre W B Furtado" <[EMAIL PROTECTED]> writes:
> Is is possible to declare a generic type without using "data" or "newtype"?
> For example, I woud like that "pair" is a type synonym for "(t,t)" where t
> is a generic type, but just saying:
>
> > type pair = (t,t)
>
> won't work: i get a parse error.
- types in haskell must be capitalized (maybe a better syntax error message
would be nice, i ran into the same pb)
- "t" is a free variable, so you can't write this. Either write:
type Pair t = (t,t)
or
type Pair = (Int,Int)
or even
type Pair t1 t2 = (t1, t2)
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