base class , inheritate class sizeof()
- by user1279988
why sizeof(X) is 4 and sizeof(Y) is 8?
and another question, in class X, only the int(i) count as sizeof() 4? member function does take any memory space?
Plz tell me, thanks!
class X {
int i;
public:
X() { i = 0; }
void set(int ii) { i = ii; }
int read() const { return i; }
int permute() { return i = i * 47; }
};
class Y : public X {
int i; // Different from X's i
public:
Y() { i = 0; }
int change() {
i = permute(); // Different name call
return i;
}
void set(int ii) {
i = ii;
X::set(ii); // Same-name function call
}
};
cout << "sizeof(X) = " << sizeof(X) << endl;
cout << "sizeof(Y) = "
