Interfacing R and C++ under Windows
On Fri, 3 Jan 2003, Pijus Virketis wrote:
My colleague, who has been helping me with wrapping some older C++ code for use in R, has been running into some issues, which he asked me to post here: - ERROR is defined in RS.h which is included in Rdefines.h which conflicts with Visual Studio's ERROR - TRACE is defined in Rinternals.h which conflicts with Visual Studio's TRACE - math.h is included within extern "C" linkage in R.h, however Visual Studio's math.h includes templates which are only valid in C++ Basically, he feels that there are some clear conflicts between what
R expects of C++ and what Visual C++ does. So, while the simpler .C technique can be used, the .Call approach does not work. What are we missing here? A real C++ compiler (and enough netiquette to wrap your lines). Why are you using VC++ with R: it is most definitely not the recommended C compiler? Using standard C++ and the recommended compiler usually works, modulo undefining symbols defined in windows.h or its dependencies.
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595