/* test a theory */

#include <stdio.h>

typedef void voidFunc(void);
typedef voidFunc *rVoidFunc(void);
typedef rVoidFunc *rrVoidFunc(void);


void hello(void) {
  printf("hello world\n");
}

voidFunc *returnHello(void) {
  return hello;
}

rVoidFunc *returnRH(void) {
  return returnHello;
}

int main(int argc, char **argv) {
  voidFunc *helloFunc;
  rVoidFunc *rhFunc;

  rhFunc = returnRH();
  helloFunc = rhFunc();
  helloFunc();

  return 0;
}