Function get_next_out

src/tee.c:195–203

   or -1 if all are null.  */

ATTRIBUTE_PURE
static int
get_next_out (int *descriptors, int nfiles, int idx)
{
  for (idx++; idx <= nfiles; idx++)
    if (0 <= descriptors[idx])
      return idx;
  return -1;  /* no outputs remaining */
}

/* Remove descriptors[i] due to write failure or broken pipe.
   Return true if this indicates a reportable error.  */