8 Jul
2009
8 Jul
'09
2:10 p.m.
On Wed, Jul 8, 2009 at 6:42 AM, vicente.botet<vicente.botet@wanadoo.fr> wrote:
Yes, this is what I wanted to say. On the case of the direction class, you are forced to give an *initial value* because direction is not default constructible, but with your interface we can't have an exception in this case. Is for this reason I say you are mixin both.
Do we need to give an initial value just for conversion to work at all, or is it only needed as a return in the error case? Tony