Should I copy an std::function or can I always take a reference to it?

Question

In my C++ application (using Visual Studio 2010), I need to store an std::function, like this:

class MyClass
   {
   public:
      typedef std::function

        

Answer 1

I would suggest you to make a copy:

MyFunction m_myFunction; //prefferd and safe!

It is safe because if the original object goes out of scope destructing itself, the copy will still exist in the class instance.