[boost] Re: enable_if formal review ?

From: David Abrahams (dave_at_[hidden])
Date: 2003-08-20 21:37:06

Jaakko Jarvi <jajarvi_at_[hidden]> writes:

> 4. Non-SFINAE compilers
>
> Dave has an implementation of enable_if which defaults to being always
> enabled for compilers that do not support SFINAE. We do not think this
> is the right approach, and believe that attemts to use enable_if on a 
> compiler that does not support SFINAE, should cause an immediate
> error.

Can you justify that choice a bit?  In the applications where I've
used it, no-op behavior provides good gradual degradation in
functionality (I don't have a strong opinion though).

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com