typedef struct { short s __attribute__ ((aligned(2), packed)); double d __attribute__ ((aligned(2), packed)); } TRIAL; int check (TRIAL *t) { if (t->s != 1 || t->d != 16.0) return 1; return 0; } main () { TRIAL trial; trial.s = 1; trial.d = 16.0; if (check (&trial) != 0) abort (); exit (0); }