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GroupingMapBy

itertools::grouping_map

Type Alias GroupingMapBy 

Source 
pub type GroupingMapBy<I, F, S = RandomState> = GroupingMap<MapSpecialCase<I, GroupingMapFn<F>>, S>;
Expand description

GroupingMapBy is an intermediate struct for efficient group-and-fold operations.

See GroupingMap for more information.

Aliased Type§

pub struct GroupingMapBy<I, F, S = RandomState> {
    iter: MapSpecialCase<I, GroupingMapFn<F>>,
    hash_builder: S,
}

Fields§

§iter: MapSpecialCase<I, GroupingMapFn<F>>§hash_builder: S