gcc/testsuite/gcc.dg/Warray-bounds-18.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -Warray-bounds -Wno-stringop-overflow" } */
   3
   4 typedef struct
   5 {
   6   int len;
   7   char data[1];
   8 } rec;
   9
  10 int
  11 p(rec *r, int len);
  12
  13 int
  14 f (char prm1, char prm2)
  15 {
  16   char buf[10];
  17
  18   rec *r1 = (rec *)&buf;
  19
  20   r1->len = 10;
  21   r1->data[0] = prm1;
  22   r1->data[1] = prm2; /* { dg-bogus "above array bounds" } */
  23
  24   return p(r1, r1->len);
  25 }