zadatak s operatorom >>
Pozdrav!
Ja imam problem sa sledecim zadatkom:
#include <iostream>
using namespace std;
class Matrix {
private:
int X1, X2, Y1, Y2;
public:
Matrix(int x1, int x2, int y1, int y2) {
int det = x1 * y2 - x2 * y1;
if (det != 1) {
cout << "Matrica ne pripada modularnoj grupi! " << endl;
exit(1);
}
else {
X1 = x1; X2 = x2; Y1 = y1; Y2 = y2;
};
};
int DajX1() { return X1; };
int DajX2() { return X2; };
int DajY1() { return Y1; };
int DajY2() { return Y2; };
int* operator*(const Matrix &a) {
int* b;
*b = X1 * a.X1 + X2 * a.Y1;
*(b+1) = X1 * a.X2 + X2 * a.Y2;
*(b+2) = Y1 * a.X1 + Y2 * a.Y1;
*(b+3) = Y1 * a.X2 + Y2 * a.Y2;
return b;
};
};
ostream& operator<<(ostream& os, Matrix a) {
int det = a.DajX1()*a.DajY2()-a.DajX2()*a.DajY1();
if ( det = 1) {
return os << "{ { " << a.DajX1() << "," << a.DajX2() << "} { " << a.DajY1() << "," << a.DajY2() << "} }";
}
else {
cout << "Matrica ne pripada modularnoj grupi! " << endl;
exit(1);
};
};
istream& operator>>(istream &is, Matrix &a) {
if (!is) return is;
int x_1, x_2, y_1, y_2, det;
is >> x_1 >> x_2 >> y_1 >> y_2;
det = x_1*y_2-x_2*y_1;
if (!(det = 1)) {
is.clear(ios::failbit);
return is;
}
else {
a = Matrix(x_1, x_2, y_1, y_2);
return is;
};
};
int main() {
Matrix A();
cin >> A;
Matrix M(2, 1, 1, 1);
Matrix N(6, 5, 1, 1);
cout << M << endl;
cout << N << endl;
cout << *M.operator*(N) << endl;
return 0;
}
Kompajler mi javlja gresku kod dela koda:cin >> A. Mozete li mi reci zasto?Hvala unapred!
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