Hi there, I am using C++ Builder 5 to develop windows GUI interface for a R library package. I have to pass R objects to and from C functions and also evaluate them within C functions. But I always got linking error message of "unresolved external functions" with those internal functions or macros defined in Rinternals.h file. I can not find the reason.
I have included R.h and Rinternals.h, generated and added R.lib and R.def to the project. It seems no effects. I tried to directly use structure member instead of a macro, e.g. "LENGTH(OBJ)" with "((VECSEXP) (obj))->vecsxp.length", getting an error "Symbol VECSEXP not defined". I noticed when generating R.lib and .def file, it reported warning messages about some duplicated functions within R.dll. But I am not sure whether it is the reason and how to solve it. I am using C++Builder 5, R 1.7.0.1 windows version, used impdef.exe and implib.exe to generating lib and def files, and used VCL components to develop the windows interfaces. Can you pleased to give me some advices? Edward [[alternative HTML version deleted]] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help