WARNING: UNDEF: Undefined reference in extends clause for 'Undefined' in class 'Test' at line 10 in file ../test/test73.h
WARNING: UNDEF: Undefined {@link ...} reference to 'Invalid' in ccdoc comment at line 10 in file ../test/test73.h
WARNING: UNDEF: Undefined {@link ...} reference to 'Invalid' in ccdoc comment at line 10 in file ../test/test73.h
WARNING: UNDEF: Undefined @see link to reference 'Invalid' in ccdoc comment at line 10 in file ../test/test73.h
WARNING: UNDEF: Undefined @see link to reference 'Invalid' in ccdoc comment at line 10 in file ../test/test73.h
WARNING: UNDEF: Undefined friend reference to 'Unknown' in class 'Test2' at line 19 in file ../test/test73.h