🔒 Locked

reference to a reference

Started by TEUTON Apr 20, 2006 at 1:39 AM 2 replies 450+ views

Original Post

Apr 20, 2006 at 1:39 AM

2 questions: 1. Why reference to a refrence is not allowed 2. I tried writing this code(refrence to a refrence), which compiles in VC6.0 successfully.


#include <iostream>
using namespace std;
int main()
{
int x;
int &p=x;
int &q=p;
return 0;
}

Sneftel

296

Sneftel

Apr 20, 2006 at 1:46 AM

Quote:
Original post by TEUTON
2 questions:
1. Why reference to a refrence is not allowed

Because it would be identical to a single reference.

Quote:
2. I tried writing this code(refrence to a refrence), which compiles in VC6.0 successfully.

Because initalizing a reference with a reference causes the new reference to refer to the old reference's target.

Boder

180

Boder

Apr 20, 2006 at 2:14 AM

I was going to post a new question, but it is related to this.

How can I test if two references are equal, like testing if pointers are equal?

Zakwayda

1,120

Zakwayda

Apr 20, 2006 at 2:43 AM

Quote:
Original post by Boder
How can I test if two references are equal, like testing if pointers are equal?

Just compare addresses like you would with regular objects.

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.