Ok, so it might just be a bug? I thought this is just not possible.
I use 32-bit Windows 7, and for MinGW I just used the one from QtSDK, that I downloaded with QtCreator.
I installed the newest version of MinGW and changed the System path to the new folder. Is that everything that I have to do, to use the newer MinGW. In Qt it still says MinGW4.4 ...
Anyways, it still crashes, at the line with the first #pragma omp.
I created a testcase, that is close to my program:
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
MainWindow w;
w.show();
return a.exec();
}
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
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#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
{
Q_OBJECT
public:
explicit MainWindow
(QWidget *parent
= 0);
~MainWindow();
private slots:
void on_pushButton_clicked();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
void on_pushButton_clicked();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "worker.h"
#include <QThread>
MainWindow
::MainWindow(QWidget *parent
) : ui(new Ui::MainWindow)
{
ui->setupUi(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
worker* wThread = new worker(this);
wThread->start();
}
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "worker.h"
#include <QThread>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
worker* wThread = new worker(this);
wThread->start();
}
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#ifndef WORKER_H
#define WORKER_H
#include <QtCore>
#include <QThread>
{
Q_OBJECT
public:
explicit worker
(QObject *parent
= 0);
protected:
void run();
};
#endif // WORKER_H
#ifndef WORKER_H
#define WORKER_H
#include <QtCore>
#include <QThread>
class worker : public QThread
{
Q_OBJECT
public:
explicit worker(QObject *parent = 0);
protected:
void run();
};
#endif // WORKER_H
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#include "worker.h"
#include "threads.h"
#include <QtCore>
#include <QThread>
{
}
void worker::run()
{
threads thr;
thr.startThreads();
}
#include "worker.h"
#include "threads.h"
#include <QtCore>
#include <QThread>
worker::worker(QObject *parent) :
QThread(parent)
{
}
void worker::run()
{
threads thr;
thr.startThreads();
}
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#ifndef THREADS_H
#define THREADS_H
class threads
{
public:
void startThreads();
};
#endif // THREADS_H
#ifndef THREADS_H
#define THREADS_H
class threads
{
public:
void startThreads();
};
#endif // THREADS_H
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#include "threads.h"
#include <QDebug>
#include <omp.h>
#include <iostream>
using namespace std;
void threads::startThreads()
{
bool finished = false;
#pragma omp parallel sections
{
#pragma omp section
{
int a=0;
char outBuffer[500];
while(a<1000){
sprintf(outBuffer,"a: %d \n", a);
qDebug( outBuffer);
a++;
}
finished = true;
}
#pragma omp section
{
int b=0;
char outBuffer[500];
while( !finished ){
sprintf(outBuffer,"b: %d \n", b);
qDebug( outBuffer);
b++;
}
}
}
}
#include "threads.h"
#include <QDebug>
#include <omp.h>
#include <iostream>
using namespace std;
void threads::startThreads()
{
bool finished = false;
#pragma omp parallel sections
{
#pragma omp section
{
int a=0;
char outBuffer[500];
while(a<1000){
sprintf(outBuffer,"a: %d \n", a);
qDebug( outBuffer);
a++;
}
finished = true;
}
#pragma omp section
{
int b=0;
char outBuffer[500];
while( !finished ){
sprintf(outBuffer,"b: %d \n", b);
qDebug( outBuffer);
b++;
}
}
}
}
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