1#include <stdio.h> 2 3extern void __attribute__ ((weak)) foo (void); 4 5char x, y, z; 6 7long 8lowest_align (void *a, void *b, void *c) 9{ 10 unsigned long bits = (long) a | (long) b | (long) c; 11 return bits & -bits; 12} 13 14int 15main (void) 16{ 17 printf ("library %sloaded\n", &foo ? "" : "not "); 18 printf ("alignment %ld\n", lowest_align (&x, &y, &z)); 19 return 0; 20} 21