Re: [boost] result_of<F()>::type is void ... why?

From: Eric Niebler (eric_at_[hidden])
Date: 2007-05-21 16:19:17

Daniel Walker wrote:
> Incidentally, we do know how to test for member templates now. Here's
> a thread archive discussing my patch to MPL that does this:
> http://tinyurl.com/2os8fl.
> 
> So, it would be possible to implement a result_of that deduces the
> correct return type in corner cases like your example without
> decltype. But decltype is a much better all around solution.

Can you comment on why some of your tests fail with Comeau? I haven't 
looked into your patch, but if it doesn't work with Comeau, there's a 
good chance it's non-standard, which would be a deal-breaker for 
tr1::result_of.

-- 
Eric Niebler
Boost Consulting
www.boost-consulting.com