Called when elements a(ai) and b(bi) are equal according to compare
Compare element ai of the first sequence with element bi of the second sequence
Compare element ai of the first sequence with element bi of the second sequence
an index into the first sequence
an index into the second sequence
-1 if a(ai) < b(bi), 0 if a(ai) == b(bi), 1 if a(ai) > b(bi)
Called for a subsequence of elements of a that are not overlapping any element of b
Called for a subsequence of elements of b that are not overlapping any element of a
Abstract class that can be used to implement custom binary merges with e.g. special collision behavior or an ordering that is not defined via an Order[T] typeclass