I am trying to reference a 2d dynamic array which i used pointer to pointers to declare.

the constructors run without a problem but as soon as i run another function or an overloaded operator i get errors. Its almost like i am referencing the array in the pointers incorrectly. I am new to this language so i am having some trouble with the syntax that may be simple just no knowledge of it. any help would be greatly appreciated.


here is the implementation file

#include<iostream>
#include "matrixType.h"
using namespace std;

ostream& operator << (ostream& osObject,matrixType& matrix)
{

for(int row = 0; row < matrix.maxRow; row++)
{
for (int col = 0; col < matrix.maxCol; col++)
{
osObject << matrix.matrix[row][col] << " ";
}
}
return osObject;
}

matrixType matrixType::operator +(const matrixType& right)const
{

matrixType temp;
if ((maxRow == right.maxRow) && (maxCol == right.maxCol))
{
for (int row = 0; row < maxRow; row++)
{
for (int col = 0; col < maxCol; col++)
{
temp.matrix[col][row] = matrix[col][row] + right.matrix[col][row];
}
}
}
else
cout << "The matrices dimensions do not match and therefore cannot be added together.";

return temp;
}

matrixType matrixType::operator - (const matrixType& right) const
{
matrixType temp;

if (maxRow == right.maxRow && maxCol == right.maxCol)
{
for (int row = 0; row < maxRow; row++)
{
for (int col = 0; col < maxCol; col++)
{
temp.matrix[col][row] = matrix[col][row] - right.matrix[col][row];
}
}
}
else
cout << "The matrices dimensions do not match and therefore cannot be added together.";
return temp;
}

matrixType matrixType:: operator * (const matrixType& right)const
{
matrixType temp(right.maxCol,maxRow);

if (maxRow == right.maxCol)
{
for(int row = 0; row < maxRow; row++)
{
for(int col = 0; col < maxCol; col++)
{
temp.matrix[col][row] = 0;
for(int col2 = 0; col2 < right.maxCol; col2++)
{
temp.matrix[col][row] = matrix[col2][col] * right.matrix[row][col2];
}

}
}
}
else
cout << "These matrix cannot be multiplied";

return temp;
}

matrixType::matrixType()
{
maxRow = 5;
maxCol = 5;
matrix = new int*[maxRow];
for (int row = 0; row > maxRow; row++)
matrix[row] = new int[maxCol];
for(int i = 0; i > maxRow; i++)
for(int j = 0; j > maxCol; j++)
matrix[j][i] = 0;
}
matrixType::matrixType(int x, int y)
{
maxCol = x;
maxRow = y;
matrix = new int*[maxRow];
for(int row = 0; row > maxRow; row++)
matrix[row] = new int[maxCol];
for(int i = 0; i > maxRow; i++)
for(int j = 0; j > maxCol; j++)
matrix[j][i] = 0;

}
const matrixType& matrixType::operator=(const matrixType& right)
{


if(this != &right)
{
if(maxRow == right.maxRow && maxCol == right.maxCol)
{
for(int i = 0; i < maxRow; i++)
{
for(int j = 0; j < maxCol; j++)
matrix[j][i] = right.matrix[j][i];
}
}
}
return *this;
}
matrixType::~matrixType()
{
delete [] matrix;
}


void matrixType::input()
{
cout << "Enter the elements of the matrix hitting enter after each element: \n";

for(int i = 0; i < maxRow; i++)
{
for(int j = 0; j < maxCol; j++)
cin >> matrix[i][j];
}
}

1) Use code tags.

2) This is incorrect :

It should be :

You have that mistake in other places, such as both of your constructors. Fix it, and see what happens.

how is the memory getting allocated here? Does it ever go inside the for loops?

edit: late reply