std::ifstream in(dictpath);        if(!in)    {        std::cout << __DATE__ << " " << __TIME__                  << __FILE__ << " " << __LINE__                  << ": dict read error" << std::endl;        exit(-1);    }        std::string line;    while(getline(in, line))    {        std::stringstream ss(line);        std::string key;        int value;        ss >> key >> value;        dict_.push_back(make_pair(key, value));    }    in.close();