Request: add an impl for `f32::try_from(i32)`

[Lokathor]

It appears that there's no TryFrom support on the f32 type.

[Lokathor]

Also, u32, i64, u64, etc

And f64 versions.

[ollie27]

See https://internals.rust-lang.org/t/tryfrom-for-f64/9793

How would it be implemented and what would it be used for?

[scottmcm]

There's a bunch of disagreement on what the expected semantics of this implementation would be.
See discussion in rust-lang/rfcs#2484

[Lokathor]

@ollie27 I understand it's non-trivial. However, that issue is closed up and a lot of people don't even read those forums, so I think an issue about the missing impl is appropriate.

@scottmcm I've actually seen that RFC before long enough ago to have totally forgotten about it. Unfortunately it seems to have stalled.

[scottmcm]

I don't think we track requests like this in rust-repo issues, because there's an infinite list of such things.

People wanting to see stuff happen can try to push on the above RFC, make IRLO threads, talk on zulip, or open an ACP.