Why would one use function pointers to member method in C++?

Question

A lot of C++ books and tutorials explain how to do this, but I haven\'t seen one that gives a convincing reason to choose to do this.

I understand very well why functio

Answer 1

I have some code I'm working on right now where I used them to implement a state machine. The dereferenced member functions implement the states, but since they are all in the class they get to share a certian amount of data that is global to the entire state machine. That would have been tough to accomplish with normal (non-member) function pointers.

I'm still undecided on if this is a good way to implement a state machine though.