code-separation - w3toppers.com

C++ Header Files, Code Separation

Header files should contain class and function declarations. Source files contain class and function definitions. It is standard practice (i.e. read easier) to have one declaration per header file and one definition per source file, though for small (read simpler helper) objects you sometimes group them with related more substantial objects. Example: Class Menu Menu.h: … Read more

Is it a good practice to place C++ definitions in header files?

Your coworker is wrong, the common way is and always has been to put code in .cpp files (or whatever extension you like) and declarations in headers. There is occasionally some merit to putting code in the header, this can allow more clever inlining by the compiler. But at the same time, it can destroy … Read more