C++ vector push_back

Question

What is the proper way of pushing a new object element onto a std::vector? I want the data to be allocated in the vector. Will this copy the object newrad

Answer 1

Yup, radioNum will be copied into m_radios. As long as you're not deallocating pointers when newradio.~Radio(); occurs (out of scope), it's OK. If m_radios, or a subclass uses pointers, you'll need to make the switch to smart pointers (shared_ptr).

When m_radios goes out of scope, the destructor is automatically called, and all the stuff std::vector holds is freed.