Integrating C++ libraries in C for ARToolKit - ARToolkit+

Question

I am working on a Augmented reality Project where I plan to use ARToolkit for Image Capturing and rendering where as ARToolKitPlus for marker detection.

The problem is ARToolKit is a C library where as ARToolKit+ is written in C++. Can some one please sugegst me a way to integrate them both.

ARToolKit Library

ARToolkitPlus

Answer 1

Write your code in C++ as it is able to call both C and C++ libraries.

In order for the C code to be callable from C++, any external names need to be qualified with extern "C". Normally the developer of the C library will put that in there for you, but if they didn't you can do outside your include:

extern "C" {
#include "c_header_file_missing_extern_c.h"
}