In C++, what does & mean after a function's return type?
c++
Solution
Yes, the `int&` version returns a reference to an `int`. The `int` version returns an `int` by value.
See the section on references in the C++ FAQ
Problem
In a C++ function like this: ``` int& getNumber(); ``` what does the `&` mean? Is it different from: ``` int getNumber(); ```