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.
#ifndef ALWAYS42
#define ALWAYS42
class Always42 {
public:
int getValue() const {
return 42;
}
};
#endif // ALWAYS42