ch14_4.cpp

上面的程序是关于钱能的C++课后习题答案

//**********************
//**    ch14_4.cpp    **
//**********************

#include <iostream.h>
#include <string.h>

class Person{
public:
  Person(char* pN);
  Person(Person& p);
  ~Person();
protected:
  char* pName;
};

Person::Person(char* pN)
{
  cout <<"Constructing " <<pN <<endl;
  pName=new char[strlen(pN)+1];
  if(pName!=0)
    strcpy(pName,pN);
}

Person::Person(Person& p)
{
  cout <<"Copying " <<p.pName <<" into its own block\n";
  pName=new char[strlen(p.pName)+1];
  if(pName!=0)
    strcpy(pName,p.pName);
}

Person::~Person()
{
  cout <<"Destructing " <<pName <<endl;
  pName[0]='\0';
  delete pName;
}

void main()
{
  Person p1("Randy");
  Person p2=p1;       //即Person p2(p1);
}