On Tue, 25 Dec 2007, Felipe Lessa wrote:
On Dec 25, 2007 4:27 PM, Henning Thielemann
[EMAIL PROTECTED] wrote:
test :: (Integral a, RealFrac a) = a
test =
let c = undefined
in asTypeOf (round c) c
When compiling I get:
Compiling StorableInstance (
I thought I understand monomorphism restriction. But it seems, I don't. I
have boilt down my problem to the following test. Don't try to make any
sense of it, it is just the smallest code I could come up with.
test :: (Integral a, RealFrac a) = a
test =
let c = undefined
in asTypeOf
As i understand it, the monomorphism restriction applies to constrained
type variables, but c :: forall a. a, so it remains polymorphic and each of
its uses can be instantiated to a different type.
2007/12/25, Henning Thielemann [EMAIL PROTECTED]:
I thought I understand monomorphism
On Dec 25, 2007 4:27 PM, Henning Thielemann
[EMAIL PROTECTED] wrote:
test :: (Integral a, RealFrac a) = a
test =
let c = undefined
in asTypeOf (round c) c
When compiling I get:
Compiling StorableInstance ( src/StorableInstance.hs, interpreted )
src/StorableInstance.hs:38:17:
