Question

I’m writing simple pomodoro application, which is basically countdown timer. Right now, I’ve got countdown working, but the weird thing is that when I add another attribute to my class (arbitrary), I get Sedmentation fault error.

Using gdb, the problem should be here:

void Status::showPomodoroTime() {
    QTime time = pomodoroTime->addSecs(elapsed);
    activeTime->display(time.toString("mm:ss"));
}

where activeTime is QLCDNumber widget and elapsed is int.

More context:

void Status::createDefaultIntervals()
{
    pomodoroInterval = new QTime(0, 25);
    pomodoroBreak = new QTime(0, 5);
    pomodoroLongBreak = new QTime(0, 15);
}

void Status::run()
{
    if (pomodoroActive == STOP) {
        pomodoroTime = pomodoroInterval;
        showPomodoroTime();
    }
    pomodoroActive = RUN;
    updateStatusArea();
    timerTick();
}

CreateDefaultInterval definitely runs before showPomodoroTime.

What bugs me, that whole application works fine. Just when I add another attribute, it starts to throw sedfault.

How can variable declaration in *.h file cause segfault in *.cpp?

If you want more code, I can put it anywhere. I just don’t know, what place is persistent enough. Don’t want to post it here (about 300 lines of code).

Answer 1

check if(pomodoro!= NULL) and then do addSecs().