#include <stdio.h>

struct pair {
  double x;
  double y;
};

extern void objc_msgSend();

void hey (void *object, void *sel) {
  struct pair (*fun)(void *self, void *sel) = (void*)&objc_msgSend;
  struct pair r;
  r = (*fun)(object, sel);
  printf("bar got { %g, %g }\n", r.x, r.y);
}