Implementation of the C++ copy constructor

A copy constructor is a special constructor that has the properties of a 1-like constructor. Its function is to initialize a class object to be created with a known object. The parameter passing mode of the copy constructor must be passed by reference. See example:

#include <iostream>
#include <cstring>
using namespace std ; 
class Student 
{
 private :
 char name[8];
 int age ;
 char sex ; 
 int score ;
 public :
 void disp(); // A function declaration that prints the information 
 Student(char name[],int age , char sex ,int score); // Constructor declaration 
 Student(Student &dx); // Copy the constructor declaration 
 ~Student(); // The declaration of the destructor 
};
// Implementation of the print information function 
void Student::disp()
{
 cout << this->name << endl ; 
 cout << this->age << endl ; 
 cout << this->sex << endl ; 
 cout << this->score << endl ;
}
// Implementation of the constructor  
Student::Student(char name[],int age , char sex ,int score)
{
 strcpy(this->name,name);
 this->age = age ; 
 this->sex = sex ;
 this->score = score ;
}
// Implementation of the copy constructor 
Student::Student(Student &dx)
{
 strcpy(this->name , dx.name);
 this->age = dx.age ; 
 this->sex = dx.sex ;
 this->score = dx.score ;
} 
// Implementation of the destructor 
Student::~Student()
{
 cout << " End of the program " << endl ;
} 
int main(void)
{
 Student stu1("YYX",23,'N',86);
 Student stu2(stu1); 
 stu1.disp() ;
 stu2.disp() ;
 return 0 ;
}

Operation results:

YYX
23
N
86
YYX
23
N
86
End of the program
End of the program

conclusion