literal default value for an unknown type

[Dylan Thurston]

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On Tue, Jul 08, 2003 at 10:19:49PM -0400, Derek Elkins wrote:
> On Tue, 8 Jul 2003 23:16:33 -0300
> "Andre W B Furtado" <andrefurtado@ieg.com.br> wrote:
>=20
> > Is it possible replace the question mark in the following code in
> > order to make defaultMyType return a "don't care" value for b?
> >=20
> > data MyType t =3D MyType { a :: Int, b :: t}
> >=20
> > defaultMyType :: MyType
> > defaultMyType =3D MyType {a =3D 0, b =3D ?}
> >=20
>=20
> First you do need the type parameter (:: MyType t).

Maybe what's wanted is this?

defaultMyType :: MyType a
defaultMyTpe =3D MyType {a =3D 0, b =3D undefined}

Peace,
	Dylan

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