Re: [boost] [outcome] expected, etc. why are these assignable

Andrzej Krzemienski wrote:

This is a valid point. If you need this tricky fourth state once in 1000 use cases, you can afford to use std::variant instead and leave without the convenience of `outcome`.

Or you could use expected, assuming we decide this is a direction worth pursuing. Proof of concept here: https://github.com/pdimov/variant2/blob/master/include/boost/variant2/expect...