1  /* { dg-options "-fno-strict-overflow" } */
       2  typedef unsigned char __uint8_t;
       3  typedef __uint8_t uint8_t;
       4  typedef uint8_t u8_t;
       5  typedef struct ip_addr ip_addr_t;
       6  char *
       7  ipaddr_ntoa_r (const ip_addr_t * addr, char *buf, int buflen)
       8  {
       9    char inv[3];
      10    char *rp;
      11    u8_t *ap;
      12    u8_t n;
      13    u8_t i;
      14    int len = 0;
      15    for (n = 0; n < 4; n++)
      16      {
      17        while (*ap);
      18        while (i--)
      19  	{
      20  	  if (len++ >= buflen)
      21  	    return ((void *) 0);
      22  	  *rp++ = inv[i];
      23  	} ap++;
      24      }
      25  }