Get function pointer from std::function when using std::bind

Question

I\'m trying to use std::function in conjunction with std::bind, but I\'m having some problems.

This works:

#include 

        

Answer 1

This is quite impossible. The whole reason that std::function exists is that function pointers suck horrifically and should never, ever, be used by anyone, ever again, except for the doomed souls bearing the Burning Standards of Hell C interoperation, because they cannot handle functions with state.

A std::function cannot, in the general case, be converted to a void(*)(). The only reason this works in the first example is because it happens to be a void(*)() originally.