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pub fn merge_join_by<I, J, F>(
    left: I,
    right: J,
    cmp_fn: F
) -> MergeJoinBy<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter, F>Notable traits for MergeJoinBy<I, J, F>impl<I, J, F> Iterator for MergeJoinBy<I, J, F> where
    I: Iterator,
    J: Iterator,
    F: for<'_, '_> FnMut(&<I as Iterator>::Item, &<J as Iterator>::Item) -> Ordering
type Item = EitherOrBoth<<I as Iterator>::Item, <J as Iterator>::Item>;
where
    I: IntoIterator,
    J: IntoIterator,
    F: for<'_, '_> FnMut(&<I as IntoIterator>::Item, &<J as IntoIterator>::Item) -> Ordering
Expand description

Return an iterator adaptor that merge-joins items from the two base iterators in ascending order.

See .merge_join_by() for more information.