rosapps/applications/sysutils/regexpl/CrtSupplement.c

   1 /* $Id$
   2  *
   3  * Written by EA because ReactOS hasn't yet _ui64toa()
   4  * (it's in msvcrt.dll, and not in crtdll.dll).
   5  */
   6
   7 #include <stdlib.h>
   8
   9 static
  10 char DigitMap [] = "0123456789abcdefghijklmnopqrstuvwxyz";
  11
  12 char *
  13 _ui64toa (
  14         unsigned __int64        value,
  15         char                    * string,
  16         int                     radix
  17         )
  18 {
  19         int     reminder = 0;
  20         char    buffer [17];
  21         char    * w = buffer;
  22         int     len = 0;
  23         int     i = 0;
  24
  25         /* Check the radix is valid */
  26         if ((2 > radix) || (36 < radix))
  27         {
  28                 return string;
  29         }
  30         /* Convert the int64 to a string */
  31         do {
  32                 reminder = (int) (value % (__int64) radix);
  33                 *(w ++) = DigitMap [reminder];
  34                 value /= (__int64) radix;
  35                 ++ len;
  36
  37         } while ((__int64) value > 0);
  38         /* Reverse the string */
  39         while (i < len)
  40         {
  41                 string [i ++] = *(-- w);
  42         }
  43         string [len] = '\0';
  44
  45         return string;
  46 }
  47
  48
  49
  50 /* EOF */