C++ dynamic allocation in cocos2d-x -


i made pointer variable, ptr_view, in main cpp dynamic allocation create views & buttons in screen.

and sch, common pointer in class_a, class_b ... indicating main class access pointer ptr_view. when button class_a made pressed, function below running.

void class_a::changeview_b() { cc_safe_delete(sch->ptr_view); sch->ptr_view = new  class_b; sch->ptr_view->rcreation(main_view); }

but creates error, got know why, since memory of class_a terminated when cc_safe_delete running 'sch' no more exist when trying access sch->ptr_view. still don't know how fix problem. can give me little clue through situation?

your logic easier reason if used smart pointer type managing memory. cocos2d-x provides own smart pointer type, cocos2d::refptr<t>, reference-counted pointer (think std::shared_ptr<t> or objective-c arc).

that said, given information in question, there no reason code posted shouldn't work. cc_safe_delete(sch->ptr_view) (which delete ptr; ptr = nullptr;) shouldn't delete sch. there may other memory bugs in program. again: smart pointers friend.


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