c++ - Getting right value from an array within a class that behaves like matrix -

i've got class, behaves lika matrix, , operations there + , -, * etc work well.. when i'm trying single value, weird values 2.08252e-317 ... i've realized, bug happens only, when want create new metrix way:

const matrix b = ;

without const works well...

this declaration of class:

class matrix { public:  matrix(int x, int y); ~matrix(void); matrix operator+(const matrix &matrix) const; matrix operator-() const;  matrix operator-(const matrix &matrix) const;  matrix operator*(const double x) const;  matrix operator*(const matrix &matrix) const;  class proxy {     matrix* _a;     const matrix* _consta;     int _i; public:    proxy(matrix& a, int i) : _a(&a), _i(i) {     }      proxy(const matrix& consta, int i) : _consta(&consta), _i(i) {     }      double& operator[](int j) {         return _a->_arrayofarrays[_i][j];     } };  proxy operator[](int i) {     return proxy(*this, i); }  proxy operator[](int i) const {     return proxy(*this, i); }    // copy constructor  matrix(const matrix& other) : _arrayofarrays() {     _arrayofarrays = new double*[other.x ];     (int = 0; != other.x; i++)         _arrayofarrays[i] = new double[other.y];      (int = 0; != other.x; i++)          (int j = 0; j != other.y; j++)             _arrayofarrays[i][j] = other._arrayofarrays[i][j];      x = other.x;     y = other.y; } int x, y; double** _arrayofarrays; };   //constructor   matrix::matrix(int x, int y) { _arrayofarrays = new double*[x]; (int = 0; < x; ++i)     _arrayofarrays[i] = new double[y]; this->x = x; this->y = y; }   

so create instance, fill values , then, when want print value on index weird values :-/

ie:

matrix a(3,5); //fill in values cout << a[1][1] << endl // prints out nonsence 

does have idea, how rewrite class able proper values?