On Friday, September 16th, 2022 at 5:47 AM, Bengt Gustafsson via Std-Proposals <std-proposals_at_[hidden]> wrote:


> I feel that it is a kludge to use variant for this purpose, where the
> aim is to store an instance of a subclass in a potentially open set of
> subclasses.
>

> This is better served by something like polymorphic_value [...]
>


polymorphic_value is for an open set
of subtypes, and the std::variant
solution here is for a closed set of
subtypes. They are of different purposes.
The latter is a kludge, but the codes
in transition are physically divergent,
while a design is meant to work well in
a complex environment.

--
Zhihao Yuan, ID lichray
The best way to predict the future is to invent it.
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