source: trunk/minix/lib/other/itoa.c@ 10

#include <lib.h>
/* Integer to ASCII for signed decimal integers. */

PRIVATE int next;
PRIVATE char qbuf[8];

_PROTOTYPE( char *itoa, (int n));

char *itoa(n)
int n;
{
  register int r, k;
  int flag = 0;

  next = 0;
  if (n < 0) {
        qbuf[next++] = '-';
        n = -n;
  }
  if (n == 0) {
        qbuf[next++] = '0';
  } else {
        k = 10000;
        while (k > 0) {
                r = n / k;
                if (flag || r > 0) {
                        qbuf[next++] = '0' + r;
                        flag = 1;
                }
                n -= r * k;
                k = k / 10;
        }
  }
  qbuf[next] = 0;
  return(qbuf);
}