lldb_and_xcode_2.swift

    @IBAction func selectCipher(_ sender: UISegmentedControl) {
        guard let cipherName = CipherName(rawValue: sender.selectedSegmentIndex) else { return }
        switch cipherName {
        case .atbash:
            encryptButton.isEnabled = true
            decryptButton.isEnabled = true
        default:
            encryptButton.isEnabled = false
            decryptButton.isEnabled = false
        }
    }