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Re: TopWindow when Close override show exception unduly [message #56182 is a reply to message #56181]

Thu, 04 February 2021 16:21

Oblivion
Messages: 1226
Registered: August 2007

Senior Contributor

Hello BetoValle,

    void Close() override {
        delete this; // error show heap is corrupted !!!!
    }

I don't think there is any bug in U++. You are trying to delete an object within the same object. That call to TopWindow::Close() will return to its caller, which is the TopWindow itself, and it will be a freed memory address. So you get heap corruption. Never do that. Smile

Not to mention the SMain instance (se) is allocated on stack. You don't need to delete it anyway.

TopWindow::Close() method is useful for cleaning up your code, if required. It is not where you delete a window. In fact, unless it is absolutely necessary, we avoid using 'delete' in U++.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Thu, 04 February 2021 16:34]

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