[uint] conversion between uint types about parity-common

[ggwpez]

U512::try_from(U256::MAX)

In this case the the conversion is always infallible, so why the try?
I am not sure what exactly you need, but if its just conversion methods then sure we can use those 😄

Just FYI we also have fixed point math in Substrate: https://paritytech.github.io/polkadot-sdk/master/sp_arithmetic/index.html

[wojciech-cichocki]

I meant a generic conversion between any types of uints, so try can be useful if the value doesn't fit. What's more, uint dependency is required in my case.