One of the comment in C++11 for rvalue references is incorrect

The collection of c++ features is really good. While going through c++11.md, I found one wrong comment. “int&& xr2 = 0; // xr2 is an lvalue of type int&& – binds to the rvalue temporary, 0”

Here xr2 should be rvalue reference as there is no type deduction.

Kindly look into this.

[gulipalli123]

Hi @AnthonyCalandra ,

Thank you for clarifying. My interpretation of your statement was incorrect, I thought you are referring xr2 as lvalue reference but after reading carefully, I understood.

[AnthonyCalandra]

Hi @gulipalli123 ,

xr2 is absolutely an rvalue reference – there’s no doubt about it, I agree. 😃 However, because the rvalue reference has a name (the name of the variable is xr2), it will behave as an lvalue, which is what the comment tries to make clear. There is a distinction between what the value category the reference binds to, and what the variable’s value category is itself.

To help show you the above explanation in a code example, I have a small one here I want you to try running: https://godbolt.org/z/TvWYvP3aY Notice there are no universal references here, just an lvalue reference and an rvalue reference. What does it print and why?