CMatrix.cpp

#include<iostream>

template <typename T>
class CMatrix{
public:
    T* matrix;
    int x, y;
    CMatrix(int _x, int _y) :x{_x}, y{_y}
    {
        matrix = new T[x*y];
    }
    ~CMatrix()
    {
        delete[] matrix;
    }

    CMatrix(const CMatrix& a) :x{a.x}, y{a.y}
    {
        matrix = new T[a.x*a.y];
        for (int i=0; i<a.x*a.y; i++) {
            matrix[i] = a.matrix[i];
        }
    }

    CMatrix& operator=(const CMatrix& a) {
        T* p = new T[a.x*a.y];
        for (int i=0; i<a.x*a.y; i++) {
            p[i] = a.matrix[i];
        }
        x = a.x;
        y = a.y;
        delete[] matrix;
        this->matrix = p;
        return *this;
    }

};

int main()
{
    CMatrix<int> a(3,4);
    CMatrix<int> b(a);
    CMatrix<int> c = b;
}