The connection in your example doesn't use 'obj' at all (there are no non-static overloads of connect() that allow binding to lambda functions), so the crash can't be caused by deletion of that object.
On 09/03/2013 11:58 AM, Philipp Kursawe wrote:
> Using this code:
>
> @
> obj->connect(sender, &Sender::signal, [] {
> });
>
> // later
> obj->deleteLater();
> @
>
> The object will be deleted, but the connection will not be broken, and
> the sender can still signal, the lambda will be called, but of course
> it will crash. Is this a known limitation of using lambdas?
>
> I know I could remember the connection and call
> disconnect(connectionId) in my Objects dtor, but this manual work can
> be easily overlooked
>
> Any ideas?
>
> Phil
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