Re: [boost] Mother of all Variants

On Wed, Apr 17, 2019 at 8:42 AM Andrzej Krzemienski via Boost < boost@lists.boost.org> wrote:

wt., 16 kwi 2019 o 23:57 Richard Hodges via Boost napisał(a):

...

Are there real-world examples of well-designed classes who's move assignment operators throw?

I think if I saw that in a code review I'd be inclined to demand a different design choice.

Is there a good reason that variants should support such classes?

Some implementations of std::list throw from their move constructors and default constructors. I understand that the implementation is easier if even an empty list has a dummy node, which requires allocation.

Also classes that use the PIMPL idiom.