gcc/testsuite/gcc.c-torture/compile/20110401-1.c

   1 void asn1_length_der (unsigned long int len, unsigned char *ans, int *ans_len)
   2 {
   3     int k;
   4     unsigned char temp[4];
   5     if (len < 128) {
   6         if (ans != ((void *) 0))
   7             ans[0] = (unsigned char) len;
   8         *ans_len = 1;
   9     } else {
  10         k = 0;
  11         while (len) {
  12             temp[k++] = len & 0xFF;
  13             len = len >> 8;
  14         }
  15         *ans_len = k + 1;
  16         if (ans != ((void *) 0)) {
  17             ans[0] = ((unsigned char) k & 0x7F) + 128;
  18             while (k--)
  19                 ans[*ans_len - 1 - k] = temp[k];
  20         }
  21     }
  22 }