Function differential_dataflow::consolidation::consolidate_from

pub fn consolidate_from<T: Ord, R: Semigroup>(
    vec: &mut Vec<(T, R)>,
    offset: usize,
)

Sorts and consolidate vec[offset..].

This method will sort vec[offset..] and then consolidate runs of more than one entry with identical first elements by accumulating the second elements of the pairs. Should the final accumulation be zero, the element is discarded.