You can navigate from the diagram editor to the source code of
C/C++ classes and other data types to examine or design your application.
You must be in the C/C++ perspective and have a diagram open in the
diagram editor.
To open C/C++ source code from a class diagram, in the diagram editor,
double click a C/C++ element.
The source code of the selected C/C++ element opens automatically
in a separate editor.