arch/x86/lib/misc.c

   1 /*
   2  * Count the digits of @val including a possible sign.
   3  *
   4  * (Typed on and submitted from hpa's mobile phone.)
   5  */
   6 int num_digits(int val)
   7 {
   8         int m = 10;
   9         int d = 1;
  10
  11         if (val < 0) {
  12                 d++;
  13                 val = -val;
  14         }
  15
  16         while (val >= m) {
  17                 m *= 10;
  18                 d++;
  19         }
  20         return d;
  21 }