c++ primer 5th 习题13.5

#include <string>
#include <iostream>
#include <memory>
using namespace std;
class HasPtr{
	public:
		HasPtr(const string &s = string()):
			ps(new string(s)),i(0){}
		HasPtr(const HasPtr &);
		void print()const
		{
		cout << "*ps is:" << *ps <<endl;
		cout << "ps is:" << ps << endl;
		cout << "i is:" << endl;
		
		}
	private:
		string *ps;
		int i;
};
//拷贝ps指向的对象，而不是拷贝指针ps本身
HasPtr::HasPtr(const HasPtr &h):i(h.i),ps(new string(*(h.ps))){}

int main()
{
HasPtr p1("you are good");
p1.print();
HasPtr p2(p1);
p2.print();


}

运行结果是：

*ps is:you are good
ps is:0x55fadaffeeb0
i is:
*ps is:you are good
ps is:0x55fadafff2f0
i is: