pub trait PowerOfTwo: Sealed { }Expand description
The marker trait for type-level numbers which are a power of two.
§Examples
Here’s a working example:
use typenum::{PowerOfTwo, P4, P8};
fn only_p2<P: PowerOfTwo>() {}
only_p2::<P4>();
only_p2::<P8>();Numbers which are not a power of two will fail to compile in this example:
ⓘ
use typenum::{P9, P511, P1023, PowerOfTwo};
fn only_p2<P: PowerOfTwo>() { }
only_p2::<P9>();
only_p2::<P511>();
only_p2::<P1023>();