gcc/testsuite/c-c++-common/attr-aligned-1.c

   1 /* PR c++/65690 */
   2 /* { dg-do run } */
   3
   4 typedef double T[4][4] __attribute__((aligned (2 * __alignof__ (double))));
   5 void foo (const T);
   6 struct S { T s; };
   7
   8 int
   9 main ()
  10 {
  11   if (__alignof__ (struct S) != 2 * __alignof__ (double)
  12       || __alignof__ (T) != 2 * __alignof__ (double)
  13       || __alignof__ (const struct S) != 2 * __alignof__ (double)
  14       || __alignof__ (const T) != 2 * __alignof__ (double))
  15     __builtin_abort ();
  16   return 0;
  17 }
  18
  19 #if defined(__cplusplus) && __cplusplus >= 201103L
  20 static_assert (alignof (S) == 2 * __alignof__ (double), "alignment of S");
  21 static_assert (alignof (T) == 2 * __alignof__ (double), "alignment of T");
  22 static_assert (alignof (const S) == 2 * __alignof__ (double), "alignment of const S");
  23 static_assert (alignof (const T) == 2 * __alignof__ (double), "alignment of const T");
  24 #endif