stablePartition(subrange:by:)
Moves all elements satisfying the given predicate into a suffix of the given range, preserving the relative order of the elements in both partitions, and returns the start of the resulting suffix.
mutating func stablePartition(subrange: Range<Index>, by belongsInSecondPartition: (Element) throws -> Bool) rethrows -> Index
Parameters
- subrange
The range of elements within this collection to partition.
- belongsInSecondPartition
A predicate used to partition the collection. All elements satisfying this predicate are ordered after all elements not satisfying it.