[variadic templates]feature request: n-th element of expansion

[Jason Merrill]

On 11/17/2009 09:36 AM, Larry Evans wrote:
> Could g++ provide this feature? How hard would it be to implement.

It probably wouldn't be difficult to implement, but I'd want someone to 
champion the extension with the C++ committee as well.  Have you asked 
Doug Gregor what he thinks?  I assume that omitting this functionality 
was deliberate.

Jason