How to Create a header file in c or c++?

Question

Is creating Header files a complex one?

Answer 1

Your header file can contain class method definitions. It's just tidier to put them in seperate files.

Just back OT:

A header file is different from your source file in the sense of :
• file extension - .h instead of .cpp
• file contents - May contain namespaces, class declarations and definitions.

E.g.

header.h

class headerclass
{
public: //codes
private: //codes
};

main.cpp

#include <iostream>
#include "header.h"

int main()
{
headerclass obj;
// codes
}

Answer 2

Also, don't forget headers are used a lot with the preprocessor to set things up, eg:
#ifdef ___my_embed_os
BUFF_MAX = 128;
#endif