C++ Primer Plus 代码学习解析（第四章 4.14-4.18）

4.14 address.cpp

#include <iostream>
int main()
{
    using namespace std;
    int donuts = 6;
    double cups = 4.5;

    cout << "donuts value = " << donuts;
    cout << " and donuts address = " << &donuts << endl;
// NOTE: you may need to use unsigned (&donuts)
// and unsigned (&cups)
    cout << "cups value = " << cups;
    cout << " and cups address = " << &cups << endl;
    // cin.get();
    return 0; 
}

1. 该代码指出了指针这一特性，与c语言相同

4.15 pointer.cpp、

#include <iostream>
int main()
{
    using namespace std;
    int updates = 6;        // declare a variable
    int * p_updates;        // declar