Why starting a thread from QMainWindow causes C++ Runtime to terminate it?

Tapsa

EDIT: I no longer need this solved. QTimer does what I need.

I am trying to use C++11 threads with Qt.
I am using Qt Creator 3.4.1 with MinGW 4.9.
I have "QMAKE_CXXFLAGS += -std=c++11" in my pro file.

In header file I have included the proper header

#include <thread>

and defined a public function to be used as a thread

void searchTimer();

In source file I start the thread with

std::thread delayTimer(&AGEMainWindow::searchTimer, this);

and the thread function looks like this

void AGEMainWindow::searchTimer()
{
    while(delayTime > 0)
    {
        delayTime -= DELAYINTERVAL;
        std::this_thread::sleep_for(std::chrono::milliseconds(DELAYINTERVAL));
    }
    emit timeToSearch();
}

Now that I have solved compiler errors, the program force quits whenever the thread gets launched. C++ Runtime Library closes it.

Is starting threads banned in Qt derived classes?

koahnig

I have added markdown tags for your code sections.

? Offline

Hi,
I dont know if this makes a difference here, but I think the recommended way to activate C++11 support is to use "CONFIG += c++11" instead of "QMAKE_CXXFLAGS += -std=c++11".

Tapsa

Using "CONFIG += c++11" in pro file doesn't change the error messages.