Dear Aguazales,
Thank you for your interest in UML Lab. UML Lab's code generation and round-trip-engineering is based on templates. We currently ship templates for Java and PHP and plan to release templates for C# in the future.
You can also write your own templates. UML Lab uses Xpand as template language. So you can write templates for C or C++. In our tutorials we describe how to do this (see [1] and [2]).
Best regards
Manuel
[1] http://www.uml-lab.com/en/uml-lab/tutorials/creating-code-styles-for-existing-code/
[2] http://www.uml-lab.com/en/uml-lab/tutorials/uml-profile-anpassen-der-modellierung-in-uml-lab/
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