Today in learning c + + inheritance of relevant knowledge, and then in the book, I saw a piece of code, without understanding, the search on the net also not understand, ask colleagues, since the people know what do you mean?
Procedure is as follows: is the thumb on the right side of the other code, the string followed "& amp;" , like and reference not

CodePudding user response:

Returns the reference,

CodePudding user response:

If so you can access the private members of the base class, but how specific operation, he and the preceding function elegantly-named setName () is supporting you, that is, the member function in a subclass, as long as the call elegantly-named setName () function, already can access private members in the base class, namely string& GetName () function returns the value

CodePudding user response:

I think here is not necessary to use references, with reference to have side effects (the reference try) :

//Note: Your choice is a c + + IDE 
#include  
#include  
using namespace std; 

The class Person 
{
Private: 
string name; 
Public: 
The Person (string name) 
{
This - & gt; Name=name; 
} 
String& GetName () 
{
return name; 
} 
}; 

Int main () 
{
The Person p1 (" Tom "); 
CoutP1. The getName ()="Mike"; 
Coutreturn 0; 
} 

By getName () to modify the name, this should not expect,
You what is the name of the book, the author?