[Qt-interest] Problems with template and function pointer

[mario]

Hi all,

I have some problem whit a QMap filled of funcion pointers:

My template should have a map of function pointers. Then I should be
able to call a particular function, having a particular string...
But I'm not able to do the "call".
Any help?

This is a simple QT program:

template <typename T> class Module
{
public:
	typedef void (T::*memberPtr)(  );
	typedef QMap<QString, memberPtr> ModuleFunctMap;

	Module(){}

	void caller( const QString& functName) 	{
		if ( m_mFunctionMap.contains(functName)  ) {

			memberPtr p = this->m_mFunctionMap[functName];

			//now I have the pointer...
			//I should call it
			
			//but this is wrong
			(this->*p)();

			//and this is wrong too
			Module<T>* inst = this;
			(inst->*p)();
		}
	}


protected:
	ModuleFunctMap	m_mFunctionMap;
};


class ModuleTest :	public Module<ModuleTest>
{
public:
    ModuleTest(  ) {
        m_mFunctionMap["randomFunctioName"] = &ModuleTest::functionToCall;
    }

    void functionToCall() {
        qDebug() << "YEAH!";
    }
};


int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    ModuleTest test;
    test.caller("randomFunctioName");
    return a.exec();
}




-- 
Mario Signorino | www.sgrunt.net