在RenderScript中将静态uint数组重置为零

Question

我有一个数组：

class viewController: UIViewController, UITextFieldDelegate {
    private let textField = UITextField()
    private let errorMessage = UILabel()
    private let submitButton = UIButton()

    override viewDidLoad() {
        super.viewDidLoad()

        /* setup your UI elements here */
        setupTextField()
        setupErrorMessage()
        setupSubmitButton()
    }

    func setupTextField() {
        /* setup your text field here (you did this already) */
    }

    func setupErrorMessage() {

        /* Here, I am using AutoLayout to lay out the errorMessage on the screen. 
           If you used storyboard, delete every line in this function except where 
           we set the message to hidden */

        errorMessage.translatesAutoResizingMaskIntoConstraints = false
        errorMessage.text = "Error Message"
        errorMessage.textColor = .red
        errorMessage.isHidden = true
        self.addSubView(errorMessage)

        NSLayoutConstraints.activate([
                    textField.leadingAnchor.constraint(equalTo: textField.leadingAnchor),
                    textField.topAnchor.constraint(equalTo: textField.bottomAnchor, constant: 10.0)
        ])
    }

    func setupSubmitButton() {
        /* setup your submit button here (you did this already) */
        submitButton.addTarget(self, action: #selector(submitButtonPressed(_ :)), for: .touchUpInside)
    }

    @objc func submitButtonPressed() {
        if textField.text.isEmpty {
            errorMessage.isHidden = false
            textField.layer.borderColor = .red
        }
    }

    /* use a UITextFieldDelegate method to change the textField's border color 
       to blue again after the user has corrected the mistake 
       (for example, after the user starts typing into the textField again) */
    func textFieldDidBeginEditing(_ textField: UITextField) {
        textField.layer.borderColor = .blue
        errorMessage.isHidden = true
    }
}

我需要一种更快的方法将此数组重置为零。可以在渲染脚本中使用uint32_t a[65536]; 吗？还是其他想法？