Function Returning Itself

Question

Is it possible to declare some function type func_t which returns that type, func_t?

In other words, is it possible for a function to retur

Answer 1

#include 
#include 
#include 

typedef void *(*fptr)(int *);
void *start (int *);
void *stop (int *);
void *start (int *a) {
         printf("%s\n", __func__);
         return stop(a);
}
void *stop (int *a) {
         printf("%s\n", __func__);
         return start(a);
}
int main (void) {
         int a = 10;
         fptr f = start;
         f(&a);
         return 0;
}