Determining to which function a pointer is pointing in C?

Question

I have a pointer to function, assume any signature. And I have 5 different functions with same signature.

At run time one of them gets assigned to the pointer, and that

Answer 1

The function names will not be available at runtime.

C is not a reflective language.

Either maintain a table of function pointers keyed by their name, or supply a mode of calling each function that returns the name.