Hi, I'm very close to finish my last planned console program, which multiplies two matrices, but i'm having unhandled exception I check my code million of times but i dont know what's wrong

can anyone plz take a look ??

btw, this is NOT home work i'm just doing that for fun and increase the skills

header file :

implementation file :Code:#ifndef MATRIX_H #define MATRIX_H class Matrix { //Data members private: int m_Rows; int m_Columns; float** m_pMatrice; //Member functions public: //Constructor Matrix::Matrix(); //Destructor ~Matrix(); //Building function void build(int& rows, int& columns); //Overloading the multiplication operator Matrix operator*(const Matrix& aMatrix); //Resize result void resizeResult(int rows, int columns); }; #endif

application code :Code:#include "stdafx.h" #include <iostream> #include "matrix.h" using namespace std; //Contructor Matrix::Matrix(): m_pMatrice(0), m_Rows(0), m_Columns(0) { //Empty constructor body } //Destructor Matrix::~Matrix() { for(int i = 0; i < m_Rows; ++i) delete[] m_pMatrice[i]; // delete array for each row delete[] m_pMatrice; // delete column of pointers } //Building matrice void Matrix::build(int& rows, int& columns) { m_Rows = rows; m_Columns = columns; cout << endl; cout << "You have made a matrice with the will\n"; cout << "of Mr.Grant, the God of Math.\n"; cout << "[" << m_Rows << "][" << m_Columns << "]\n"; m_pMatrice = new float*[m_Rows]; // allocate m pointers for(int i = 0; i < m_Rows; ++i) m_pMatrice[i] = new float[m_Columns]; // allocate n columns for each row cout << endl; cout << "Now, please pay attention, we will fill up" << endl; cout << "the entries of your matrice." << endl; for(int i = 0; i < m_Rows; ++i) { for(int j = 0; j < m_Columns; ++j) { cout << "entry[" << i << "][" << j << "] = "; cin >> m_pMatrice[i][j]; } } } //Resizing result void Matrix::resizeResult(int rows, int columns) { // create the new matrix this->m_pMatrice = new float*[rows]; for(int i = 0; i < rows; ++i) this->m_pMatrice[i] = new float[columns]; this->m_Rows = rows; this->m_Columns = columns; } //Multiplying matrices Matrix Matrix::operator*(const Matrix& rhs) { Matrix result; if (this == &rhs) { return *this; } else { //Checks if matrices are able to be multiplied if (this->m_Columns == rhs.m_Rows) { //Do multiplication result.resizeResult(this->m_Rows, rhs.m_Columns); for(int i = 0; i < result.m_Rows; ++i) for(int j = 0; j < result.m_Columns; ++j) //Error occurs here, "Unhandled exception" result.m_pMatrice[i][j] = (float)i*rhs.m_Columns+j; } else { cout << "Cannot perform multiplication." << endl; cout << "Columns of first matrix don't "; cout << "match the rows of the second matrix" << endl; } } return result; }

Code://Special thanks to Frank Luna who helped me :) #include "stdafx.h" #include <iostream> #include <conio.h> #include "matrix.h" using namespace std; int main() { cout << "\tMatrices Multiplication 1.0 Beta" << endl; cout << "\tDedicated specially with gratitude to my math teacher: " << endl; cout << "\tMr.Grant." << endl << endl; int rows, columns; ////////////////////////////////////////////////////// ////////////////Creating Matrice1///////////////////// Matrix mtrx1; cout << "Enter the rows of the first matrice: "; cin >> rows; cout << endl; cout << "Enter the columns of the first matrice: ";cin >> columns; mtrx1.build(rows, columns); cout << endl; ////////////////////////////////////////////////////// //////////////Creating Matrice2/////////////////////// Matrix mtrx2; cout << "Enter the rows of the second matrice: "; cin >> rows; cout << endl; cout << "Enter the columns of the second matrice: "; cin >> columns; mtrx2.build(rows, columns); ////////////////////////////////////////////////////// //////////////////////////////////////////////////////// //////////////Multiplication process//////////////////// Matrix result; result = mtrx1 * mtrx2; //////////////////////////////////////////////////////// //Cleaning allocated memory mtrx1.~Matrix(); mtrx2.~Matrix(); result.~Matrix(); getch(); return 0; }