Proper way to #include when there is a circular dependency?

Question

I\'m using #pragma once, not #include guards on all my h files. What do I do if a.h needs to #include b.h and b.h needs to #include a.h?

I\'m getting all sorts if e

Answer 1

The solution for this issue is 'forward declaration'.

If you have a class or a function that needs to be used in 2 headers one of the headers needs to forward declare the used class or type. Or you need to consider to restructure your headers.

This is a common beginner issue that circular dependencies are causing such issues. If you google on 'forward declaration' will find tons of results.

Since your question was too unspecific I can't give you an exact answer, sorry for this.