Question

I have program.cpp which contains main function. There is a class Tracker which is used in the main function. program.cpp also contains a bunch of utility functions (a function to check if the file passed as an argument to the program exists for example). I want to move these utility functions out of program.cpp. How should I do this:

• make utils.cpp containing the functions as they are, put the prototypes into utils.h, include utils.h inside program.cpp and compile as g++ ... program.cpp utils.cpp
• or, make utils.h a class with no private members, just have all the functions as public, implement them in utils.cpp and then use them in program.cpp as Utils utils; utils.stuff(...);

Answer 1

There is no reason to create a class if you don’t need one (especially not just a class for a few unrelated functions). I would choose your first option, and declare the function prototypes as they are in util.h.