gcc/testsuite/gcc.dg/pr15749-1.h

   1 /* Similar to c99-flex-array-3.c, but a system header so should not
   2    have diagnostics even with -pedantic-errors.  */
   3
   4 #pragma GCC system_header
   5
   6 struct flex { int a; int b[]; };
   7 union rf1 { struct flex a; int b; };
   8 union rf2 { int a; struct flex b; };
   9 union rf3 { int a; union rf1 b; };
  10 union rf4 { union rf2 a; int b; };
  11
  12 struct t0 { struct flex a; };
  13 struct t1 { union rf1 a; };
  14 struct t2 { union rf2 a; };
  15 struct t3 { union rf3 a; };
  16 struct t4 { union rf4 a; };
  17
  18 void f0 (struct flex[]);
  19 void f1 (union rf1[]);
  20 void f2 (union rf2[]);
  21 void f3 (union rf3[]);
  22 void f4 (union rf4[]);
  23
  24 struct flex a0[1];
  25 union rf1 a1[1];
  26 union rf2 a2[1];
  27 union rf3 a3[1];
  28 union rf4 a4[1];