Template matrix with char* consol stop responding when using operator= - c++

Question

i need some help. This is my first that hugh program in c++ (pointers are nightmare). I tried everything and i can't find what i did wrong.
class aghMatrix {
private:
T ** matrix;
int n;
int m;
public:
aghMatrix() : n(0), m(0) {};
aghMatrix(int _n, int _m);
aghMatrix(const aghMatrix& other);
~aghMatrix();
void setItem(int n, int m, T item);
void setItems (T * wsk);
void setItems(int r, int c ...);
void setAll();
void getALL();
bool couldbeadded(char * word, char sign);
bool equals (T first, T second);
T operator()(int a, int b);
aghMatrix<T> & operator+(const aghMatrix<T> & other);
aghMatrix<T> & operator*(const aghMatrix<T> & other);
aghMatrix<T> & operator= ( const aghMatrix<T> & other);
bool operator== (const aghMatrix<T> & other);
bool operator!= (const aghMatrix<T> & other);
};
Test :
char* cpt[] = {"to", "jest", "tablica", "wyrazow", "o", "rozmiarze", "jedenascie", "ktore", "beda", "elementami", "macierzy"};
aghMatrix<char*> cpm3(3, 1);
aghMatrix<char*> cpm4;
cpm3.setItems(cpt+3);
cpm4 = cpm3; // here my consol stop responding.
Constructors :
//default
aghMatrix() : n(0), m(0) {};
//with param
template <class T>
aghMatrix<T>::aghMatrix(int _n, int _m)
{
n = _n;
m = _m;
matrix = new T * [n];
for (int i = 0; i < n; i ++)
{
matrix[i] = new T[m];
}
}
setitems:
template <class T>
void aghMatrix<T>::setItems (T * wsk)
{
int licznik = 0;
for(int i = 0; i < n; i ++)
{
for (int j = 0; j < m; j ++)
{
matrix[i][j] = wsk[licznik];
licznik ++;
}
}
}
Operator= for char*
template <>
aghMatrix<char*> & aghMatrix<char*>::operator= ( const aghMatrix<char*> & other)
{
if ( & other != this)
{
if ( (other.n == n) && (other.m == m) && (this->matrix != 0))
{
for (int i = 0; i < n; i ++)
{
for (int j = 0; j < m; j ++)
{
for(int ii = 0; ii < strlen(other.matrix[i][j]); ii++)
{
matrix[i][j][ii] = other.matrix[i][j][ii];
}
}
}
}
else
{
if(this->matrix)
{
for (int i = 0; i < n; i ++)
{
for (int j = 0; j < m; j ++)
{
delete [] matrix[i][j];
}
delete [] matrix[i];
}
delete [] matrix;
n = 0;
m = 0;
matrix = NULL;
}
n = other.n;
m = other.m;
matrix = new char **[n];
for(int i = 0; i < n; i ++)
{
matrix[i] = new char*[m];
}
for(int i = 0; i < n; i ++)
{
for(int j = 0; j < m; j ++)
{
matrix[i][j] = new char[strlen(other.matrix[i][j])];
for(int ii = 0; ii < strlen(other.matrix[i][j]); ii ++)
{
matrix[i][j][ii] = other.matrix[i][j][ii];;
}
}
}
}
}
return *this;
}
I tried everything and still i'm getting this problem with console (it looks like i'm using somewhere uninitialized memory or sth). I cant solve this problem alone is alone can anybody help me?
EIDT: One more thing : The error shows when the program comes to end and after i change destructor :
Now looks like this :
template
aghMatrix<T>::~aghMatrix()
{
if (matrix)
{
for (int i = 0; i < n; i ++)
{
delete [] matrix[i];
}
delete [] matrix;
matrix = NULL;;
n = 0;
m = 0;
}
}
the previous version of destructor :
template <class T>
aghMatrix<T>::~aghMatrix()
{
if (matrix =! 0)
{
for (int i = 0; i < n; i ++)
{
delete [] matrix[i];
}
delete [] matrix;
matrix = 0;
}
}
maybe here is the reason of error?
EDIT:---------------------
I found the reason of my error here it is:
when i create
aghMatrix<char*> cpm3(3, 1);
cpm4 = cpm3; //destructor create a problem
but when i do something like this:
aghMatrix<char*>cpm3(3,2); //or somekind of other number than '1'
cpm4 = cpm3; // everything works fine
any ideas?