Type Alias GroupingVec 

pub type GroupingVec<V> = GroupingContainer<usize, V, Vec<Option<V>>>;

A grouping container based on the Vec type.

The vector is given map semantics with keys of type usize, which are used as indices for the vector. When inserting an element at a key, the vector is extended if needed so that it can hold an element with that index.

Aliased Type

pub struct GroupingVec<V> { /* private fields */ }