File conventions used

For an object to be used in both the C++ and the Objective-C environment:

The .h file extension is reserved for the C++ header file and .mh file extension is used for the Objective-C header file.
The .o file extension is reserved for the compiled C++ object file and the .mo file is used for the compiled Objective-C object file.
The .cd file is the Classdesc output Class Description file from the given object .h file. This file is used for the compilation of Objective-C translator (see Section 11.2.6).

**Figure 4:** File conventions used
$\begin{figure}\begin{tabular}{\vert l\vert l\vert l\vert} \hline File name \& ex... ...lassdesc description file & Classdesc output \\ \hline \end{tabular}\end{figure}$