Function luaZ_getaddr

third-party/lua-5.5.0/src/lzio.c:79–89

const void *luaZ_getaddr (ZIO* z, size_t n) {
  const void *res;
  if (!checkbuffer(z))
    return NULL;  /* no more input */
  if (z->n < n)  /* not enough bytes? */
    return NULL;  /* block not whole; cannot give an address */
  res = z->p;  /* get block address */
  z->n -= n;  /* consume these bytes */
  z->p += n;
  return res;
}