Subject: Re: [boost] [optional] Suggestion for adding an optional_number class
From: Hans Dembinski (hans.dembinski_at_[hidden])
Date: 2017-07-26 11:41:20
> On 25. Jul 2017, at 15:46, Sergey Mitsyn via Boost <boost_at_[hidden]> wrote:
>
> FYI there was a proposal recently for optional with the same purpose; unfortunately, it went nowhere:
>
> https://listarchives.boost.org/Archives/boost/2015/09/225692.php
There was also boost::markable with a similar intend:
https://listarchives.boost.org/Archives/boost/2016/09/230811.php