Question

I’m new to programming and especially C++ which I’m keen to learn, although out of all the text books or external links I have studied I can’t seem to find this.

here goes.

If I have two classes (class A && class B)

Class A has a namespace A_NS;
Class B has a namespace B_NS;

both these classes are located in foreign folders

Class A -> fileA.h (FolderA)
Class B -> fileB.h (FolderB)

---

My Question is:
in class A, how can I #include<B_NS/fileB.h>

I want to reference my fileB.h via a sort of common interface? is it the namespace I use here?
I wouldn’t want to use the folder name e.g. <folderB/fileB.h>
Because in reality the folder is a few directories down.

I just don’t know how to include it, I was wondering if namespace could do it as I have a number of files in different directories I would like coupled under one common type of name, if that makes any sense ^^

Im sorry this is my first post on Stackoverflow and I find it hard to put clearly my issue but if anyone could please provide some help I would really appreciate it.

Answer 1

I wouldn’t want to use the folder name

This is compiler-specific, which is probably why your textbooks don’t cover it, but all compilers have some way of putting a directory on the include path. With GCC, you’d use the -I option:

g++ module.cpp -I../headers

Namespaces are entirely separate from file paths to modules/headers.