Unsolved QtConcurrent::map Сan't use QVector from class
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Hi.
In the file main.cpp I need start void StrategyCod1(double) in 4 thread:void StrategyCod1(double Parametr) { QMutex Mutex; Mutex.lock(); MainWindow w; QVector<double> Open=w.Open; Mutex.unlock(); int NMA=Parametr; qDebug()<<NMA; } int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; QVector<double> Perebor; //перебор первого значения стратегии for (double i=5;i<1000;i=i+3) { Perebor.append(i); } QFuture<void> Perebor2 = QtConcurrent::map(Perebor, StrategyCod1); return a.exec(); }
But when I run the program stops. Error in call MainWindow w.
How do I use QVector from class MainWindow? -
Hi and welcome to devnet,
What exactly do you want to achieve ?
In any case, your MainWindow variable in
StrategyCod1
is local and will be destroyed at the end of the function.