Re: [boost] Is there BOOST_ENABLE_IF macro now?

Subject: Re: [boost] Is there BOOST_ENABLE_IF macro now?
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2013-08-20 06:11:39

On 20/08/13 05:29, Nathan Ridge wrote:
>> The big problem is that a proper concepts language
>> feature would require fundamental changes to what ConceptsLite proposes, so
>> it's not simply a matter of getting ConceptsLite in and then improving it
>> in the future. If ConceptsLite gets in, I find it hard to believe that C++
>> will ever get proper concept support.
>
> I would strongly suggest that you bring this up on std-proposals.
> As it stands, ConceptsLite appears to have fairly broad support
> within the Committee, and if issues like this are not brought up,
> it might be passed without such issues being considered carefully
> enough.

His argument is that the definition of concepts and their association 
with types is not rigid and formal anymore. It's just any constant 
boolean expression.
It's not a bug, it's a feature.