gcc/testsuite/gdc.test/fail_compilation/fail156.d

   1 // REQUIRED_ARGS: -d
   2 /*
   3 TEST_OUTPUT:
   4 ---
   5 fail_compilation/fail156.d(35): Error: overlapping initialization for field `x` and `y`
   6 fail_compilation/fail156.d(35):        `struct` initializers that contain anonymous unions must initialize only the first member of a `union`. All subsequent non-overlapping fields are default initialized
   7 fail_compilation/fail156.d(42): Error: overlapping initialization for field `x` and `y`
   8 fail_compilation/fail156.d(42):        `struct` initializers that contain anonymous unions must initialize only the first member of a `union`. All subsequent non-overlapping fields are default initialized
   9 ---
  10 */
  11
  12 alias int myint;
  13
  14 struct S
  15 {
  16     int i;
  17     union
  18     {
  19         int x = 2;
  20         int y;
  21     }
  22     int j = 3;
  23     myint k = 4;
  24 }
  25
  26 void main()
  27 {
  28     S s = S( 1, 5 );
  29     assert(s.i == 1);
  30     assert(s.x == 5);
  31     assert(s.y == 5);
  32     assert(s.j == 3);
  33     assert(s.k == 4);
  34
  35     static S t = S( 1, 6, 6 );
  36     assert(t.i == 1);
  37     assert(t.x == 6);
  38     assert(t.y == 6);
  39     assert(t.j == 3);
  40     assert(t.k == 4);
  41
  42     S u = S( 1, 5, 6 );
  43     assert(u.i == 1);
  44     assert(u.x == 5);
  45     assert(u.y == 5);
  46     assert(u.j == 3);
  47     assert(u.k == 4);
  48 }