A popular path to protected mode.
Another pointless chart.
Equivalents in C# and JavaScript.
Explicit shared state.
Recursion comes back.
Keeping track of what to do next.
Well, some of them, at least.
The phantom controls something yet holds nothing. The indulgent holds something but controls nothing.
shared_ptrs
Changing the pointer while controlling the same object.
shared_ptr constructor and enable_shared_from_this
Working together through a secret signal.