1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
template<typename T, class Derived>
class Base {
public:
Base(T x) : x_(x) { };
Derived half() {
Derived d(x_ / 2);
return d;
};
virtual T calculate() = 0;
virtual ~Base() { };
protected:
T x_;
};
template<typename T>
class Square : public Base<T, Square<T> > {
public:
Square(T x) : Base<T, Square<T> >(x) { };
T calculate() { return this->x_ * this->x_; }
};
template<typename T>
class Cube : public Base<T, Cube<T> > {
public:
Cube(T x) : Base<T, Cube<T> >(x) { };
T calculate() { return this->x_ * this->x_ * this->x_; }
};
|
