C++ basic constructors/vectors problem (1 constructor, 2 destructors)

Question

Question is probably pretty basic, but can\'t find out what\'s wrong (and it leads to huge of memleaks in my app):

class MyClass {
public:
    MyClass() { co         


        

Answer 1

When the b object gets pushed onto the vector a copy is made, but not by the operator=() you have - the compiler generated copy constructor is used.

When the main() goes out of scope, the b object is destroyed and the copy in the vector is destroyed.

Add an explicit copy constructor to see this:

MyClass( MyClass const& other) {
    cout << "copy ctor\n";
};