#include in .h or .c / .cpp?

Question

When coding in either C or C++, where should I have the #include\'s?

callback.h:

#ifndef _CALLBACK_H_
#define _CALLBACK_H_

#include <         


        

Answer 1

Put as many includes in your cpp as possible and only the ones that are needed by the hpp file in the hpp. I believe this will help to speed up compilation, as hpp files will be cross-referenced less.

Also consider using forward declarations in your hpp file to further reduce the include dependency chain.