example6.cpp

来自「Advanced Internet Programming Lecture 2 」· C++ 代码 · 共 32 行

#include <iostream>
using namespace std;

class TwoValues {
  int a;
  int b;
public:
  TwoValues(int i, int j) { a = i; b = j; }
  friend class Min;
};

class Min {
public:
  int min(TwoValues x);
};

int Min::min(TwoValues x)
{
  return x.a < x.b ? x.a : x.b;
}

int main()
{
  TwoValues ob(10, 20);
  Min m;

  cout << m.min(ob);

  return 0;
}