Adding two matrix objects and assigning the result to third object using overloaded operators ?

Tarun Jha

here ih the code below i have tried to add two matrix objects and assign it to the third object but it doesn't give expected result and the rather some garbage value.

include
using namespace std;

class matrix{
int **p; //pointer to Matrix
int d1, d2;

public:
//matrix(){} //default constructor
matrix(int x=20, int y=20); //parameterised

void get\_element();
void put\_element();
int checkAdd(matrix &);                                     //to check the feasibility of the operation

//Rule of three
matrix operator + (matrix &);
void operator = (matrix );

~matrix(){
    for (int i = 0; i < d1; i++)
        delete p\[i\];
    delete p;
}

};

matrix temp; //global matrix temp

//=============================================

void matrix::operator = (matrix obj){

this->d1 = obj.d1;
this->d2 = obj.d2;
for(int i=0; ip\[i\]\[j\] = obj.p\[i\]\[j\];

//put\_element();
//return(\*this);

}

matrix matrix::operator+(matrix &obj){
if(checkAdd(obj)==0)
{
//matrix temp;
for(int i=0; ip[i][j] + obj.p[i][j];

    //temp.put\_element();
    return(temp) ;
}

cout<<"coloumn and rows of both matrix are not equal !"<d1 == obj.d1) && (this->d2 == obj.d2))
    return 0;
else return 1;

}

void matrix::get_element(){
for(int i=0; i

Lost User

I think it may have something to do with your static temp object. Try creating temp inside your operator+ overload.

Tarun Jha

but if i create it inside the operator+ function, i wont be able to assign the value of object temp to object C in main(). As temp scope will only be operator+ function and as soon as the operator+ function is called off, the address that i am passing to the C will no longer point to the values of temp object.

Lost User

I have not done operator overloading for a while but that is my recollection of how it should be done. You should be able to find some samples through Google.

Tarun Jha

ok