dynamic matrix of QStrings

[QiT]

//Q2DVector.h
#include <QVector>
 
template <class type>
class Q2DVector : public QVector< QVector<type> >
{
 
public:
		Q2DVector() : QVector< QVector<type> >(){};
		Q2DVector(int rows, int columns) : QVector< QVector<type> >(rows) {
			for(int r=0; r<rows; r++) {
				this[r].resize(columns);
			}
		};
		virtual ~Q2DVector() {};
};
typedef Q2DVector<QString> Q2DQStringVector; 
typedef Q2DVector<int> Q2DQIntVector;

//Q2DVector.h
#include <QVector>

template <class type>
class Q2DVector : public QVector< QVector<type> >
{

public:
		Q2DVector() : QVector< QVector<type> >(){};
		Q2DVector(int rows, int columns) : QVector< QVector<type> >(rows) {
			for(int r=0; r<rows; r++) {
				this[r].resize(columns);
			}
		};
		virtual ~Q2DVector() {};
};
typedef Q2DVector<QString> Q2DQStringVector; 
typedef Q2DVector<int> Q2DQIntVector;

To copy to clipboard, switch view to plain text mode 

nothing in Q2Dvector.cpp

//main.cpp
 
...
Q2DQStringVector myStringMatrix(P,Q);
...
myStringMatrix[i][j]= someString;
...

//main.cpp

...
Q2DQStringVector myStringMatrix(P,Q);
...
myStringMatrix[i][j]= someString;
...

To copy to clipboard, switch view to plain text mode 

I have got
Unhandled exception at 0x004244e0 in APP.exe: 0x80000001: Not implemented