ambiguous call to overloaded function

[:db:sStrong]

hello there,

I am getting a kind of weired compiling error which says:

error C2668: 'testingQtMainWindow::testingQtMainWindow' : ambiguous call to overloaded function
Error executing cl.exe.

error C2668: 'testingQtMainWindow::testingQtMainWindow' : ambiguous call to overloaded function
Error executing cl.exe.

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this is a simple test programme to make a main window with menu's. and the error is occuring in the main.cpp section of the programme. any idea's what i am doing wrong???

[blackliteon]

SOurce please...

[:db:sStrong]

this is the source and the error is occuring on line "5":

int main( int argc, char** argv )
{
	QApplication app( argc, argv );
 
	testWindow *tw = new testWindow();
	tw->setCaption("test");
	app.setMainWidget( tw );
	tw->show();
 
	app.connect(&app, SIGNAL(lastWindowClosed()),&app, SLOT(quit() ));
	return app.exec();
}

int main( int argc, char** argv )
{
	QApplication app( argc, argv );

	testWindow *tw = new testWindow();
	tw->setCaption("test");
	app.setMainWidget( tw );
	tw->show();
	
	app.connect(&app, SIGNAL(lastWindowClosed()),&app, SLOT(quit() ));
	return app.exec();
}

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[zlatko]

There is not enough code! Show header and implementation of your testWindow class.

[:db:sStrong]

this is my header file:

#include <qmainwindow.h>
 
class QWorkspace;
class QTextEdit;
 
class testWindow : public QMainWindow
{
	Q_OBJECT
 
public:
	testWindow( QWidget* parent = 0, const char* name = 0, WFlags f = WType_TopLevel );
	testWindow();
    ~testWindow();
 
protected:
	QWorkspace *mdi;
 
protected slots:
 
	void something();
 
private slots:
 
 
private:
 
};

#include <qmainwindow.h>

class QWorkspace;
class QTextEdit;

class testWindow : public QMainWindow
{
	Q_OBJECT
		
public:
	testWindow( QWidget* parent = 0, const char* name = 0, WFlags f = WType_TopLevel );
	testWindow();
    ~testWindow();

protected:
	QWorkspace *mdi;

protected slots:

	void something();

private slots:


private:

};

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and this is my implementation file:

#include "testwindow.h"
 
// here are othe qt header files.
 
testWindow::testWindow( QWidget* parent, const char* name, WFlags f )
	: QMainWindow( parent, name, f )
{
 
//here comes my code
}

#include "testwindow.h"

// here are othe qt header files.

testWindow::testWindow( QWidget* parent, const char* name, WFlags f )
	: QMainWindow( parent, name, f )
{

//here comes my code
}

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[jacek]

testWindow( QWidget* parent = 0, const char* name = 0, WFlags f = WType_TopLevel );
testWindow();

Both of these constructors can be invoked without parameters and compiler doesn't know which one to choose. Do you need that second constructor?

[Cesar]

this is my header file:

#include <qmainwindow.h>
 
class QWorkspace;
class QTextEdit;
 
class testWindow : public QMainWindow
{
	Q_OBJECT
 
public:
	testWindow( QWidget* parent = 0, const char* name = 0, WFlags f = WType_TopLevel );
	testWindow();
	~testWindow();
    //skip
};

#include <qmainwindow.h>

class QWorkspace;
class QTextEdit;

class testWindow : public QMainWindow
{
	Q_OBJECT
	
public:
	testWindow( QWidget* parent = 0, const char* name = 0, WFlags f = WType_TopLevel );
	testWindow();
	~testWindow();
    //skip
};

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Let's see...

testWindow *tw = new testWindow();

testWindow *tw = new testWindow();

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could be interpreted as both

testWindow *tw = new testWindow::testWindow();

testWindow *tw = new testWindow::testWindow();

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and

testWindow *tw = new testWindow::testWindow(0, 0, WType_TopLevel);

testWindow *tw = new testWindow::testWindow(0, 0, WType_TopLevel);

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That's why you get ambiguous call to overloaded function error.

[blackliteon]

this is the source and the error is occuring on line "5":

int main( int argc, char** argv )
{
	QApplication app( argc, argv );
 
	testWindow *tw = new testWindow();
	tw->setCaption("test");
	app.setMainWidget( tw );
	tw->show();
 
	app.connect(&app, SIGNAL(lastWindowClosed()),&app, SLOT(quit() ));
	return app.exec();
}

int main( int argc, char** argv )
{
	QApplication app( argc, argv );

	testWindow *tw = new testWindow();
	tw->setCaption("test");
	app.setMainWidget( tw );
	tw->show();
	
	app.connect(&app, SIGNAL(lastWindowClosed()),&app, SLOT(quit() ));
	return app.exec();
}

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testWindow - show include header of this class please

[:db:sStrong]

testWindow - show include header of this class please

include header of this class is:

#include <qapplication.h>
#include "testwindow.h"

#include <qapplication.h>
#include "testwindow.h"

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[zlatko]

you have decalre 2 empty constructor!

p.s. too slow
p.p.s. useless thread

[:db:sStrong]

you have decalre 2 empty constructor!

yes i saw it haha

[:db:sStrong]

you have decalre 2 empty constructor!

p.s. too slow
p.p.s. useless thread

a thread can never be useless sometimes u cant see the prob and small probs sometimes take much time

ESPASEBE(thanx in russian)

[wysota]

ESPASEBE(thanx in russian)

Не за что

[:db:sStrong]

Не за что

may i know what does it mean?

i can speak a little rusian but i cant read

[zlatko]

may i know what does it mean?

i can speak a little rusian but i cant read

not at all)

p.s. in ukraine language it sound better

[:db:sStrong]

not at all)

p.s. in ukraine language it sound better

i have been to ukraine, the language is totally different from russian Kiev is the best place to be

[Cesar]

Не за что

means You're welcome!
Guys, I suppose we should avoid using Russian and stop confusing others

[:db:sStrong]

oeps i found it

i got this warning:

multiple default constructors specified

multiple default constructors specified

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and i have removed these lines:

testingWindow();
    ~testingWindow();

testingWindow();
    ~testingWindow();

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it works now fine..

thanx anyways guys

bye

[yop]

...and i have removed these lines:

testingWindow();
    ~testingWindow();

testingWindow();
    ~testingWindow();

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...

Don't remove the destructor, the poor thing never caused you any harm