c++ - Move assingment operator for a QWidget derivate? -

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this question has answer here:

i have qwidget derivate, let assume standard qwidget example

class mainwindow : public qmainwindow { //.. }

does make sense class mainwindow fullfill rule of five, mean move constructor , move assignment ?

(since mainwindow should created once)

nope. qobject derived classes should never copied , using q_disable_copy macro qobject , derived classes explicitly disable/hide copy constructor , assignment operator declaring them private. possibly has changed recent releases , c++ 11 compatible compilers might declared deleted. see here

so rule of 5 out. , looking @ qt source can't find support moving qobject derived classes ...

one final read qt objects: identity vs value


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