[boost] Re: Making 'any' visitable

From: Andrei Alexandrescu (andrewalex_at_[hidden])
Date: 2002-04-10 11:23:51

"Alexander Nasonov" <alnsn_at_[hidden]> wrote in message
news:a91ifj$ocd$1_at_main.gmane.org...
> I already posted something sililar to boost:
> http://lists.boost.org/MailArchives/boost/msg27859.php

Cool. Ideas: Visitor could be Loki's own - if Loki's visitor is ever
added to boost, it would be a nice example of internal reuse. Then, as
a complement to 'any' or, dare I say, maybe even a replacement, maybe
later we'd add Variant (search "Discriminated Unions" with google) to
boost.

If anyone's interested, I have a series on discriminated unions going
right now on cuj.com. I will soon discuss unbounded discriminated
unions, which are a particular case, and which do what 'any' does (and
more), within a larger framework.

Andrei