divconst-3.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

long long
f (long long x)
{
  return x / 10000000000LL;
}

main ()
{
  if (f (10000000000LL) != 1 || f (100000000000LL) != 10)
    abort ();
  exit (0);
}