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// add the following:
// copy constructor
// destructor
// overload the = operator so assignment works for Matrix
// (note in sample code that = works for single elements)
// a member function that prints the matrix to standard output
// a member function that inputs a Matrix from standard input
// overload the >> and << operators so they read/write a matrix
// add calls to main demonstrating that your copy constructor, output
// and input functions work
#include <iostream>
#include <cstdlib>
using namespace std;
template <typename T > class Matrix
{
private:
int R; // row
int C; // column
T *m; // pointer to T
public:
//Matrix();
T &operator()(int r, int c)
{
return m[r+c*R];
}
Matrix(int R0, int C0) {R=R0; C=C0; m=new T[R*C];}
//Why is it R0 and C0? what do the numbers denote?
/*T &operator=(Matrix<int> & b)
{
for (int i=0;i<R; i++)
{
for (int j=0;j<C;j++)
{
m(i)(j)=b(i)(j);
}
}
return b;
}*/
};
/*
Matrix::Matrix()
{
for (int i=0; i<R;i++)
{for (int j=0;j<C;j++)
{
//a
//confused how I should make a default matrix
//could I do a[1][1]=1 instead?
}
}
}
*/
/*
Matrix::Matrix(int R0, int C0)
{
R=R0; C=C0; m=new T[R*C];
}
*/
int main()
{
Matrix<double> a(3,3);
a(1,1)=11;
a(1,2)=12;
a(1,3)=13;
a(2,1)=21;
a(2,2)=22;
a(2,3)=23;
a(3,1)=31;
a(3,2)=32;
a(3,3)=33;
cout << a(1,1) <<" ";
cout << a(1,2) <<" ";
cout << a(1,3)<<endl;
cout << a(2,1) <<" ";
cout << a(2,2) <<" ";
cout << a(2,3)<<endl;
cout << a(3,1) <<" ";
cout << a(3,2) <<" ";
cout << a(3,3)<<endl;
}
