Incomprehensible bad_alloc?

Question

Qt

vector<string> namescol;
    namescol.push_back("id");
    namescol.push_back("task");
    namescol.push_back("parent_task");
 QStringList list;
    QString qstr;
    for (int i = 0; i < namescol.size(); i++)
    {
        qstr = QString::fromStdString(namescol[i]);//тут ошибка std::bad_alloc, i==0
        list.push_back(qstr);
    }

Answer 1

Check which libraries you are using. This usually happens due to the mixing of debug and release
. Googling in the blink of an eye.