I’m trying to write a function in Rust that should accept a generic parameter T, but I want to enforce T to be one of the unsigned integer types (u8, u16, u32, or u64). Additionally, I want to restrict T to support certain bitwise operations such as AND (&) and OR (|), as well as bitwise assignment operators (&= and |=).

Here’s what I’ve tried so far:

fn test<T>(mut x: T)
where
    T: std::fmt::Display
        + BitAnd<u8, Output = T>
        + BitOr<u8, Output = T>
        + BitAndAssign<u8>
        + BitOrAssign<u8>
        + std::cmp::PartialOrd<u8>,
{
    if x >= 2 {
        x &= 4;
    }
    println!("{}", x);
}

However, this implementation only works when T is u8. When I try to include other types like u16, u32, or u64, it fails to compile.

What would be the correct way to enforce T to be one of these specific unsigned integer types and support the required bitwise operations?

Thank you for your help!