1 typedef struct x { int a; int b; } __attribute__((aligned(32))) X; 2 typedef struct y { X x[32]; int c; } Y; 3 4 Y y[2]; 5 6 int main(void) 7 { 8 if (((char *)&y[1] - (char *)&y[0]) & 31) 9 abort (); 10 exit (0); 11 } 12