constref.cpp

来自「C++&datastructure书籍源码,以前外教提供现在与大家共享」· C++ 代码 · 共 26 行

#include <iostream>
#include <string>
using namespace std;
#include "prompt.h"

// illustrates const reference parameters
// Owen Astrachan, 7/11/96, 4/19/99

void Print(const string & word);

int main()
{
    string word = PromptString("enter a word: ");

    Print("hello world");
    Print(word);
    Print(word + " " + word);

    return 0;
}

void Print(const string & word)
{
    cout << "printing: " << word << endl;
}