dll under VC++ (c++ code)
On Wed, 10 May 2000, nicolas baurin wrote:
Bonjour R people,
Before to use "complex" c++ code under R (win95),
i'm trying to import the c++ code that is in R-exts.pdf (section3.5).
I'm using Visual C++ 5.0.
So i've created a "win32 dll" project, added the 3 files (X.h, X.cpp and
x_main.cpp as they're written in the document [X_main is C wrapped]) and
builded a t.dll that i've copied to my R home directory.
After a dyn.load("t.dll"), first problem, the Y static variable is not
constructed and 2nd when i call .C("X_main"), i got:
Error in .C("X_main") : C/Fortran function name not in load table.
I suppose i did not build my dll like it should ... any help would be
very welcome
Look in the rw-FAQ (always a good idea), as commands to build that example under VC++ are given there. And that has been tested under VC++6.0. I guess you forgot to export any symbols. (I don't think you can know that the Y variable is not constructed, as you have no access to vars in the DLL. In particular, C++ I/O will not work from Rgui at least (it just might from Rterm).)
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 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._