In C++11 reference variables that can refer only to temporary objects that would otherwise have no name are called __________ and are declared with a __________.
A) rvalues, ampersand (&)
B) lvalues, ampersand (&)
C) lvalues, double ampersand (&&)
D) rvalues, double ampersand (&&)
E) None of these

Question

Quizplus · Accepted Answer

The correct term for reference variables that can only refer to temporary objects is rvalues. These reference variables are declared with a double ampersand (&&). Therefore, option D is the correct answer.

In C++11 Reference Variables That Can Refer Only to Temporary