What is 'rvalue reference'?

Question

I recently came about the topic 'Move Constructor', which is used to move data to a new object from a temporary source, and the source loses the data...

Its syntax is :
Class_Name::Class_Name(Class_Name&&){}

Where && is defined as rvalue reference...

I wasn't able to fully understand what the book meant by that. Can anyone help? Please!

Answer 1

Here's some explanation I have found:

http://www.cprogramming.com/c++11/rvalue-references-and-move-semantics-in-c++11.html

Answer 2

@Helioform
Understood the topic completely...
Thank You!