More efficient way of detecting parity

isEven.swift

extension BinaryInteger {
    @inlinable
    var isOdd: Bool {
        return withUnsafePointer(to: self & 1) { pointer in
            return UnsafeRawPointer(pointer)
                .bindMemory(to: Bool.self, capacity: 1)
                .pointee
        }
    }

    @inlinable
    var isEven: Bool {
      return !isOdd
    }
    
}