This declaration is gated by at least one @_spi attribute.
struct ReferenceID
s17_StringProcessing11ReferenceIDV
4TZ2C
import _StringProcessing
protocol Equatable
A type that can be compared for value equality.
protocol Hashable : Equatable
A type that can be hashed into a Hasher to produce an integer hash value.
Hasher
init()
static func != (lhs: Self, rhs: Self) -> Bool
Returns a Boolean value indicating whether two values are not equal.