Float as value about left-right HOT 2 CLOSED

That's an interesting observation, thank you! You are right that this is a combination of the requirements for ShallowCopy and Eq. It was an oversight that f32 did not implement that trait (all Copy types trivially implement ShallowCopy), and I've rectified that in 5.0.1. I also added some better docs for how to implement it yourself :)

As for Eq, that's harder to do much about for f32; you'll probably need your own newtype wrapper as you observe. Eq is only required for the value type for the remove operation, but I think it'd probably be a mistake to remove that. Technically you can achieve the same thing with just retain, but it's a bit slower and more tedious to use. I also don't see a good way to provide remove only when the value type is Eq due to the operational log that evmap must maintain. If anyone has a good idea there though, I'm all ears!

from left-right.

Thank you for the fast response.
My best ques is to restrict those operations (mainly remove I guess) for types which do not implement Eq. However, I am far from an expert.
Thank you again.

from left-right.