1  struct C
       2  {
       3    unsigned int c;
       4    struct D
       5    {
       6      unsigned int columns : 4;
       7      unsigned int fore : 12;
       8      unsigned int back : 6;
       9      unsigned int fragment : 1;
      10      unsigned int standout : 1;
      11      unsigned int underline : 1;
      12      unsigned int strikethrough : 1;
      13      unsigned int reverse : 1;
      14      unsigned int blink : 1;
      15      unsigned int half : 1;
      16      unsigned int bold : 1;
      17      unsigned int invisible : 1;
      18      unsigned int pad : 1;
      19    } attr;
      20  };
      21  
      22  struct A
      23  {
      24    struct C *data;
      25    unsigned int len;
      26  };
      27  
      28  struct B
      29  {
      30    struct A *cells;
      31    unsigned char soft_wrapped : 1;
      32  };
      33  
      34  struct E
      35  {
      36    long row, col;
      37    struct C defaults;
      38  };
      39  
      40  __attribute__ ((noinline))
      41  void foo (struct E *screen, unsigned int c, int columns, struct B *row)
      42  {
      43    struct D attr;
      44    long col;
      45    int i;
      46    col = screen->col;
      47    attr = screen->defaults.attr;
      48    attr.columns = columns;
      49    row->cells->data[col].c = c;
      50    row->cells->data[col].attr = attr;
      51    col++;
      52    attr.fragment = 1;
      53    for (i = 1; i < columns; i++)
      54      {
      55        row->cells->data[col].c = c;
      56        row->cells->data[col].attr = attr;
      57        col++;
      58      }
      59  }
      60  
      61  int
      62  main (void)
      63  {
      64    struct E e = {.row = 5,.col = 0,.defaults =
      65        {6, {-1, -1, -1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0}} };
      66    struct C c[4];
      67    struct A a = { c, 4 };
      68    struct B b = { &a, 1 };
      69    struct D d;
      70    __builtin_memset (&c, 0, sizeof c);
      71    foo (&e, 65, 2, &b);
      72    d = e.defaults.attr;
      73    d.columns = 2;
      74    if (__builtin_memcmp (&d, &c[0].attr, sizeof d))
      75      __builtin_abort ();
      76    d.fragment = 1;
      77    if (__builtin_memcmp (&d, &c[1].attr, sizeof d))
      78      __builtin_abort ();
      79    return 0;
      80  }
      81