Most often, classes are defined in header files of the same name as the class, and any member functions defined outside of the class are put in a .cpp file of the same name as the class.
Instead of writing a large and complex code, we can create your own header files and include them in our program to use it whenever we want. It enhances code functionality and readability.
I am confused on how to separate implementation and declarations code of a simple class into a new header and cpp file. For example, how would I separate the code for the following class?
To use a C++ class defined in a header file, you need to include that header file in your implementation (.cpp) file using the `#include` directive. Here’s an example of how to implement a class defined in a header file.
Example The following example shows a common way to declare a class and then use it in a different source file. We'll start with the header file, my_class.h. It contains a class definition, but note that the definition is incomplete; the member function do_something is not defined:
Learn everything about header files in C++ with syntax, types, and real examples. Understand how to create a C++ header file, best practices to use, and more. Read now!
A header file is a file containing C declarations and macro definitions (see Macros) to be shared between several source files. You request the use of a header file in your program by including it, with the C preprocessing directive ‘#include’.
