如何解决此错误？ 抛出'std :: bad_alloc'what（）实例之后调用终止终止：std :: bad_alloc

Question

This is the code: Function :

QString printDir2(QString path, int level)
{
int check =1;
QDir folder(path);

QString space;
QString buffer;
qDebug() <<"nivelul 1 \n";
for(int i=0; 1<level; i++)
    space +="    ";
qDebug() <<"nivelul 2 \n";
foreach(QFileInfo temp , folder.entryInfoList())
{
    if(check > 2)
    {
        qDebug() <<"nivelul 4 \n";
        buffer += space + temp.absoluteFilePath() + "\n";
        if(temp.isDir())
            buffer += printDir2(temp.absoluteFilePath(), ++level);
    }
    check++;
    qDebug() <<"nivelul 3 \n";
}
return buffer;

}

and here i call the function:

QString drum="/home/sunny/Desktop/QT/descarca";
        str=printDir2(drum,0);
        qDebug()<<str<<"acesta este drumul";

How to fix this erorr from terminal:
terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc this is the terminal when i run ths code: http://s013.radikal.ru/i325/1501/e5/aade9346f0aa.png

Answer 1

You may have run into infinite recursion.

Run your program in the debugger. If you use gdb, you can issue the command catch throw before run . Then the debugger will stop when the exception is thrown. You may have to move up a few times to see which line in your code threw the exception.