38 lines
830 B
C++
38 lines
830 B
C++
|
|
#ifndef ADAPTER_HPP
|
|
#define ADAPTER_HPP
|
|
|
|
#include <random>
|
|
|
|
// Target implementation to adapt to a new interface
|
|
class Add {
|
|
public:
|
|
virtual ~Add() = default;
|
|
|
|
virtual int doMath(const int &a, const int &b) const { return a + b;}
|
|
};
|
|
|
|
// An adaptee with some useful behavior to adapt to our Add target
|
|
class RandomNumber {
|
|
public:
|
|
explicit RandomNumber(const int &max) : maxNum(max) { srand(time(nullptr));}
|
|
|
|
int getRandom() const { return rand() % maxNum;}
|
|
|
|
private:
|
|
int maxNum;
|
|
};
|
|
|
|
// An adapter that combines behaviors of Add and RandomNumber
|
|
class RandomAddAdapter : public Add {
|
|
public:
|
|
explicit RandomAddAdapter(RandomNumber *random_) : random(random_) {}
|
|
|
|
int doMath(const int &a, const int &b) const override { return a + b + random->getRandom();}
|
|
|
|
private:
|
|
RandomNumber *random;
|
|
};
|
|
|
|
#endif // ADAPTER_HPP
|