Subject: Re: [boost] [CallableTraits] The formal review begins today
From: Paul Fultz II (pfultz2_at_[hidden])
Date: 2017-04-03 19:52:52
> On Apr 3, 2017, at 1:34 PM, Peter Dimov via Boost <boost_at_[hidden]> wrote:
>
> 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.
Its more than theoretical, with internal linkage it will bloat the binary with duplicate symbols. Most linkers can remove these duplicates, but do not always and are not required to.