gcc/testsuite/gcc.dg/20010202-1.c

   1 /* { dg-do compile { target i?86-*-* sparc*-*-* x86_64-*-* } } */
   2 /* { dg-options "-O2" } */
   3
   4 extern void abort (void);
   5 extern void exit (int);
   6
   7 typedef enum { false, true } __attribute__ ((packed)) boolean;
   8 typedef struct {
   9   enum {
  10     A0 = 0, A1 = 1, A2 = 2
  11   } __attribute__((packed)) A:3;
  12   enum {
  13     B0 = 0, B1 = 1, B2 = 2
  14   } __attribute__((packed)) B:3;
  15   boolean C:1;
  16   boolean D:1;
  17   unsigned char :8;
  18 } foo;
  19 foo x = { A2, B1, false, true };
  20
  21 int main(void)
  22 {
  23   if (sizeof (foo) != 2 || __alignof__ (foo) != 1)
  24     abort ();
  25
  26   exit (0);
  27 }