Sorts only the subsection of items between indices a
and b
(excluding b
) This function guarantees a stable sort, i.e the relative order of equal elements is preserved during sorting. Read more about stable sorting here: https://en.wikipedia.org/wiki/Sorting_algorithm#Stability If this guarantee does not matter, sortSpanUnstable
might be a faster alternative. ctx
has the following method: fn lessThan(ctx: @TypeOf(ctx), a_index: usize, b_index: usize) bool