ret = 0;
for(unsigned i = this->idBegin(); i < this->idEnd(); i++)
{
auto ret_found = std::find(id_list.begin(), id_list.end(), i);
if(ret_found == id_list.cend())
{
ret = 0;
for(unsigned i = this->idBegin(); i < this->idEnd(); i++)
{
auto ret_found = std::find(id_list.begin(), id_list.end(), i);
if(ret_found == id_list.cend())
{