#include <stdio.h>

#ifdef BAD
/* Some gcc versions generate a call to this function
   in trampolines for nested functions.  */
void __enable_execute_stack (void *addr __attribute__ ((unused)))
{
}
#endif

int apply(void (*hook) (int *))
{
   int a = 0;
   hook(&a);
   hook(&a);
   return a;
}

int main (int argc, char *argv[])
{
   /* static */ int j = 5;
   int res;

   void hook(int *n)
   {
      *n = *n + j;
      j--;
   }

   res = apply(hook);
   printf("result: %d, j=%d\n", res, j);
   return 0;
}