C function pointers

#include <stdlib.h>
#include <stdio.h>

char *funkce() {
  return "Pavlik je Pavlik";
}

char *dalsi_funkce() {
  return "Jirka je Jirka";
}

typedef char*(*fun_ptr)();

typedef struct picovina {
  char*(*pointer_a)();
  fun_ptr pointer_b;
} picovina_t;

int main() {
  char *asd = funkce();
  printf("%s\n", asd);

  picovina_t pica;
  pica.pointer_b = &funkce;
  pica.pointer_a = &dalsi_funkce;

  printf("%s\n", pica.pointer_b());
  printf("%s\n", pica.pointer_a());

  return 0;
}