Let us go back to our very first example. However, instead of having one single source file for the executable, we will now introduce a class to wrap the message to be printed out to screen. This is our updated hello-world.cpp:
#include "Message.hpp" #include <cstdlib>#include <iostream>int main() { Message say_hello("Hello, CMake World!"); std::cout << say_hello << std::endl; Message say_goodbye("Goodbye, CMake World"); std::cout << say_goodbye << std::endl; return EXIT_SUCCESS;}
The Message class wraps a string, provides an overload for the << operator, and consists of two source files: the Message.hpp header file and the corresponding Message.cpp source file. The Message.hpp interface file contains the following:
#pragma ...
