Re: [boost] [CallableTraits] The formal review begins today

Subject: Re: [boost] [CallableTraits] The formal review begins today
From: Peter Dimov (lists_at_[hidden])
Date: 2017-04-03 18:34:38

Tim Song wrote:

> The issue was, I believe, whether the const implied by the constexpr gave 
> the variable template internal linkage; even though they are templates, 
> that doesn't help with the ODR problem if they are actually different 
> templates.

Yes, it would be similar to the (mostly theoretical) problem created by _1, 
if passed by reference to a template. I doubt that any implementation gives 
variable template instantiations internal linkage though. It just makes no 
sense. I don't know why issue 1713 hasn't been resolved yet.