There is a segmentation fault in this function

[knox41234]

I need help finding the cause of segmentation fault.

void MainWindow::tagfound(QNearFieldTarget *target)
{

    QByteArray id;
    id=target->uid();
    qDebug()<<id<<list.size();
    box->close();

    if(caseflag==1)
    {
    for(unsigned int i =0;i<=list.size();i++)
    {
        if(list[i].uniqueid==id)
        {
            handlefoundtag(i);
            qDebug()<< list[i].seatletter<<list[i].seatnumber<<list[i].uniqueid;

            return;
        }

    }

    box->setText("Ticket not listed");
    box->exec();
    return;
    }

    if(caseflag==2)
    {

    seasonticket temp;
    temp.seatletter = letter[0].toLatin1();
    temp.seatnumber = ui->spinBox->value();
    temp.uniqueid   = target->uid();

    list.push_back(temp);

    qDebug()<<temp.seatletter<<temp.seatnumber<<temp.uniqueid;
    box->close();
    box->setText("Success!");
    box->exec();

    caseflag=1;


    }


}

it happens after it finishes the for loop in caseflag 1.

debug mode is not helping either it faults the moment it enters the loop.

it works just fine though if it manages to go inside the if statement in caseflag1

thanks!

[wildblue]

line 12 for(unsigned int i =0;i<=list.size();i++)

The middle condition might be causing a memory error. If the numbering starts at 0 and size is n, I'd expect the last element number would be n-1, not n.

i<list.size()