The following code example is taken from the book
C++20 - The Complete Guide
by Nicolai M. Josuttis,
Leanpub, 2021
The code is licensed under a
Creative Commons Attribution 4.0 International License.
// raw code
#ifndef ALWAYS40
#define ALWAYS40
class Always40 {
public:
int getValue() const {
return 40;
}
};
#endif // ALWAYS40