pub trait PredecessorExceptForLeast: TryPredecessor + LeastElement { }Expand description
A partial order where every element but the least element has a unique predecessor.
Implementations of the try_predecessor function must return None if and only if self is the least element of the order.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.