shared_from_this called from constructor

Question

I have to register an object in a container upon its creation. Without smart pointers I\'d use something like this:

a_class::a_class()
{
    register_somewhere(t         


        

Answer 1

If you absolutely need a shared_ptr during construction, it's best to have an 'init' function. In fact, this is the only decent approach I can think of. You should probably have a special function that creates objects of this type, to ensure init() is called, if you choose this path.

However, depending on what you're registering for, it may be a better idea to give whatever object you're registering with a plain pointer to the object in the constructor, rather than a shared_ptr. Then in the destructor, you can just unregister the object from the manager.