1 /* Distilled from optimization/863. */ 2 3 extern void abort (void); 4 extern void exit (int); 5 extern void ok (int); 6 7 typedef struct 8 { 9 int x, y, z; 10 } Data; 11 find(Data * first,Data * last)12void find (Data *first, Data *last) 13 { 14 int i; 15 for (i = (last - first) >> 2; i > 0; --i) 16 ok(i); 17 abort (); 18 } 19 ok(int i)20void ok(int i) 21 { 22 if (i != 1) 23 abort (); 24 exit (0); 25 } 26 27 int main()28main () 29 { 30 Data DataList[4]; 31 find (DataList + 0, DataList + 4); 32 } 33