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Comment by heinrich5991 | Hacker News Reader

In Rust, you can make your intent explicit by calling `wrapping_add` instead of using `+`.

Or if this type is used a lot, you can wrap the 16-bit integer inside its own type and overload addition and/or other operators.

    struct Angle(i16);
    impl Add for Angle {
        type Output = Angle;
        fn add(self, rhs: Angle) -> Angle {
            Angle(self.0.wrapping_add(rhs.0))
        }
    }

There’s already a `Wrapping<T>` struct in std for you. I don’t think you need to roll your own.

Of course, it might make sense in the embedded space to do so.

Wrapping<T> actually comes from core and is just re-exported by std, so embedded targets that lack std support can still use it by importing directly from core.

https://doc.rust-lang.org/core/num/struct.Wrapping.html

Fantastic!

`Wrapping<T>` is a great solution. When in doubt, encode the behavior in the type system.

And here’s some documentation: https://doc.rust-lang.org/std/num/struct.Wrapping.html https://doc.rust-lang.org/std/primitive.u32.html#method.wrap...

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