validation/flex-array-nested.c

   1 struct f {
   2         int i;
   3         long f[];
   4 };
   5
   6 struct s {
   7         struct f f;
   8 };
   9
  10 union u {
  11         struct f f;
  12 };
  13
  14 // trigger the examination of the offending types
  15 static int foo(struct s *s, union u *u)
  16 {
  17         return    __builtin_offsetof(typeof(*s), f)
  18                 + __builtin_offsetof(typeof(*u), f);
  19 }
  20
  21 /*
  22  * check-name: flex-array-nested
  23  * check-command: sparse -Wflexible-array-nested $file
  24  *
  25  * check-error-start
  26 flex-array-nested.c:7:18: warning: nested flexible array
  27 flex-array-nested.c:11:18: warning: nested flexible array
  28  * check-error-end
  29  */