Re: [boost] Adding polymorphic_value to boost

Subject: Re: [boost] Adding polymorphic_value to boost
From: Jonathan Coe (jonathanbcoe_at_[hidden])
Date: 2017-11-20 15:09:01

> On 20 Nov 2017, at 13:37, Peter Dimov via Boost <boost_at_[hidden]> wrote:
> 
> Jonathan Coe wrote:
>> I'd like to propose adding the class-template `polymorphic_value` to boost.
>> 
>> `polymorphic_value` is designed to allow the compiler to correctly generate special member functions for classes with polymorphic components (It's `any` with an interface).
>> 
>> `polymorphic_value` has been proposed for standardisation in P0201 and has advanced through the Library Evolution group in Albuquerque (Nov 5-10). https://wg21.link/p0201
> 
> Has the name "polymorphic_value" been bike-shedded already?
> 
> It's a good name in principle, but not good from a usability point of view; too long, too hard to type without errors in the absence of autocompletion.
> 
> - poly_value?
> - any_value?
> - basic_any?
> 
> Also,
> 
> - poly
> 
> seems to be popular, but it's probably too short. 
> 

The name has been bike-shedded.
I agree it’s a little long but it conveys meaning pretty clearly to me.

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