Creates a set containing the elements of a cursor.
init(_ cursor: some Cursor<Element>) throws where Element:HashableA cursor of values to gather into a set.
// Set<String>
let cursor = try String.fetchCursor(db, ...)
let strings = try Set(cursor)import Swiftimport GRDBA toolkit for SQLite databases, with a focus on application development
@frozen struct Set<Element> where Element : HashableAn unordered collection of unique elements.
protocol Cursor<Element> : AnyObjectA type that supplies the values of some external resource, one at a time.
protocol Hashable : EquatableA type that can be hashed into a Hasher to produce an integer hash value.
init(_ cursor: some Cursor<Element>, minimumCapacity: Int) throws Creates a set containing the elements of a cursor.
mutating func formIntersection(_ cursor: some Cursor<Element>) throws Removes the elements of the set that aren’t also in the given cursor.
mutating func formUnion(_ cursor: some Cursor<Element>) throws Inserts the elements of the given cursor into the set.
func intersection(_ cursor: some Cursor<Element>) throws -> Set<Element> Returns a new set with the elements that are common to both this set and the given cursor.
func union(_ cursor: some Cursor<Element>) throws -> Set<Element> Returns a new set with the elements of both this set and the given cursor.