gcc/testsuite/gcc.dg/array-13.c

   1 /* { dg-do run } */
   2 /* { dg-options "" } */
   3
   4 /* Verify that GCC's initialized flexible array member extension
   5    works properly.  */
   6
   7 extern void abort(void);
   8 extern void exit(int);
   9
  10 typedef int T[];
  11 typedef int T0[0];
  12
  13 struct f { int w; T x; };
  14 struct g { int w; T0 x; };
  15
  16 static struct f f = { 4, { 0, 1, 2, 3 } };
  17 static int junk1[] = { -1, -1, -1, -1 };
  18 static struct g g = { 4, { 0, 1, 2, 3 } }; /* { dg-warning "(excess elements)|(near initialization)" } */
  19 static int junk2[] = { -1, -1, -1, -1 };
  20
  21 int main()
  22 {
  23   int i;
  24   for (i = 0; i < f.w; ++i)
  25     if (f.x[i] != i)
  26       abort ();
  27   exit(0);
  28 }