example_nonreentrant_function.c

scan_string (char *s)
{
     int length = strlen (s);
     /* Initialize shift state. */
     mblen (NULL, 0);

     while (1)
     {
         int thischar = mblen (s, length);
         /* Deal with end of string and invalid characters.  */
         if (thischar == 0)
             break;
         if (thischar == -1)
         {
             error ("invalid multibyte characters.");
             break;
         }
         /* Advance past this character.  */
         a += thischar;
         length -= thischar;
     }
 }