gcc/testsuite/gcc.dg/pack-test-5.c

   1 /* PR c/11446: packed on a struct takes precedence over aligned on the type
   2    of a field.  */
   3 /* { dg-do run } */
   4 /* { dg-additional-options "-mno-ms-bitfields" { target *-*-mingw* } } */
   5
   6 extern void abort (void);
   7
   8 struct A {
   9   double d;
  10 } __attribute__ ((aligned));
  11
  12 struct B {
  13   char c;
  14   struct A a;
  15 } __attribute__ ((packed));
  16
  17 int main ()
  18 {
  19   if (sizeof (struct B) != sizeof (char) + sizeof (struct A))
  20     abort ();
  21   return 0;
  22 }