Comment by pjmlp

With C++20, the C++ example can actually be written as

    constexpr std::string get_fizzbuzz(int number) {
        if (number % 15 == 0) {
            return "FizzBuzz";
        } else if (number % 3 == 0) {
            return "Fizz";
        } else if (number % 5 == 0) {
            return "Buzz";
        }
        return std::to_string(number); // convert to string
    }