gcc/testsuite/gcc.dg/Woverride-init-side-effects-1.c

   1 /* PR c/64918 */
   2 /* { dg-do compile } */
   3 /* { dg-options "" } */
   4
   5 struct S { int m, n; };
   6 union U { short s; long int l; };
   7
   8 void
   9 foo (int i)
  10 {
  11   int a[] = {
  12     [0] = ++i,
  13     [1] = i,
  14     [0] = 42    /* { dg-warning "initialized field with side-effects overwritten" } */
  15   };
  16   struct S s = {
  17     .n = ++i,
  18     .m = i,
  19     .n = i      /* { dg-warning "initialized field with side-effects overwritten" } */
  20   };
  21   union U u = {
  22     .s = i--,
  23     .l = 42     /* { dg-warning "initialized field with side-effects overwritten" } */
  24   };
  25 }