Method get_data

ml/src/svm.cpp:214–247

}

int
Cache::get_data(const int index, Qfloat** data, int len)
{
  head_t* h = &head[index];

  if (h->len)
    lru_delete(h);

  int more = len - h->len;

  if (more > 0) {
    // free old space
    while (size < more) {
      head_t* old = lru_head.next;
      lru_delete(old);
      free(old->data);
      size += old->len;
      old->data = nullptr;
      old->len = 0;
    }

    // allocate new space
    h->data = static_cast<Qfloat*>(realloc(h->data, sizeof(Qfloat) * len));

    size -= more;

    swap(h->len, len);
  }

  lru_insert(h);

  *data = h->data;
  return len;
}

void
Cache::swap_index(int i, int j)