[boost] [variant] Heads-up!

Subject: [boost] [variant] Heads-up!
From: Antony Polukhin (antoshkka_at_[hidden])
Date: 2019-04-29 17:30:29

Hi,

I've merged a very cool optimization by Nikita Kniazev into the master
branch. From now on boost::variant does pointer stealing for recursive
variants.

This significantly improves the performance of the variants move constructors.

However if you use a variant variable after the std::move for anything
except destruction and assignment then you're getting an UB. Beware!

-- 
Best regards,
Antony Polukhin