Re: [boost] [OT] [metaprogramming] Importance of order of delarations/definitions.

From: Seweryn Habdank-Wojewódzki (shw_at_[hidden])
Date: 2007-06-23 09:43:32

Hi Peter

Peter Bindels wrote:

> On 22/06/07, Seweryn Habdank-Wojewódzki <shw_at_[hidden]> wrote:
> What about using a template class with a partial specialization that
> is defined afterwards?

Seems to be good idea.
 
> template <class A>
> class T {
>  A a;
> };
> 
> int func() {
>     return sizeof(T<void *>);
> }
> 
> template <class A>
> class T<A *> {
>   A *a[10];
> };
> 
> I think that all uses that change the meaning of any symbol after it's
> defined is bad design or bad implementation. If you were to change the
> ordering inherently, you'd have to give very explicit warnings or
> errors on these kinds of situations (in particular, typedefs and
> partial specializations).

Yes, this example is really good. Thanks a lot for it.

Best regards.

-- 
|\/\/|   Seweryn Habdank-Wojewódzki
 \/\/