[boost] Indirect PTS (was Re: typeof integrated

From: Larry Evans (cppljevans_at_[hidden])
Date: 2004-12-10 06:27:59

On 12/10/2004 03:00 AM, Peder Holt wrote:
[snip]
>>
>>would mean B is nested in the "immediate" A<T> class and
>>not in any superclass of A<T>.  This would avoid the
>>problem cited in:
>>
>>http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&selm=uvflpetzg.fsf%40boost-consulting.com
>>
>>Does this seem like it would work?
>>
> Probably, but it still won't work with existing compilers. 
> The typeof library was created in order to support typeof until the
> time that this is included in the standard. Compiler support for
> typeof will probably be available before the definition of
> non-deduced-context is changed.
Makes sense.
> 
> Apart from that, I support your proposal.
Except that the further reading convinces me that :0: is better
because it wouldn't break existing code and it would have to
mean the right operand could'nt refer to a typedef either,
in order to avoid the problem illustrated by Sharoni's post.