vector::push_back not work for non default constructor

Question

i have a Controls class that have default constructor and copy constructor and other constructor ,and an assignment operator , and i want to create array of my cla

Answer 1

When using auto_ptr you should use release not get to pass the pointer to new owner:

Not this in Controls::Controls(QLayout &Parent , string name , const int &Default_value):

Layout.addWidget(Label.get() , 0 , 0);

But that:

Layout.addWidget(Label.release() , 0 , 0);

Otherwise - your auto_ptr are deleting the pointers at the end of scope of this constructor.