gcc/testsuite/g++.dg/cpp2a/desig8.C

   1 // PR c++/84874
   2 // { dg-do run { target c++17 } }
   3 // { dg-options "" }
   4
   5 struct A { int a; struct { int b; }; };
   6 struct B { A d; };
   7
   8 void
   9 foo (B *x)
  10 {
  11   *x = { .d = { .b = 5 } };
  12 }
  13
  14 void
  15 bar (A *x)
  16 {
  17   *x = { .b = 6 };
  18 }
  19
  20 int
  21 main ()
  22 {
  23   B b = { { 2, 3 } };
  24   foo (&b);
  25   if (b.d.a != 0 || b.d.b != 5)
  26     __builtin_abort ();
  27   b.d.a = 8;
  28   bar (&b.d);
  29   if (b.d.a != 0 || b.d.b != 6)
  30     __builtin_abort ();
  31 }