ex2-8-5.cpp

来自「一些学习c++的例题」· C++ 代码 · 共 35 行

#include <iostream>

using namespace std;

int& f1(int *p);
int& f2(void);

void main(void)
{
   cout << "Demonstration: function returns a reference." << endl;

   int i = 100;

   int j = f1(&i);
   cout << "j=" << j << endl;

   f2()++;
   f2();
}

int& f1(int *p)
{
   cout << "f1(): formal parameter p points to " << *p << endl;

   return *p;
}

int& f2(void)
{
   static int i = 0;

   cout << "f2(): static variable i=" << i << endl;

   return i;
}