On Tue, 17 Apr 2007, Duncan Murdoch wrote: > On 4/17/2007 10:43 PM, Ross Boylan wrote: >> I get the error >> undefined symbol: Rf_rownamesgets >> when I try to load my package, which include C++ code that calls that >> function. This is particularly strange since the code also calls >> Rf_classgets, and it loaded OK with just that. >> >> Can anyone tell me what's going on? >> >> For the record, I worked around this with the general purpose >> attribute setting commands and R_RowNamesSymbol. I discovered that >> even with that I wasn't constructing a valid data.frame, and fell back >> to returning a list of results. >> >> I notice Rinternals.h defines >> LibExtern SEXP R_RowNamesSymbol; /* "row.names" */ >> twice in the same block of code. >> >> I'm using R 2.4.1 on Debian. The symbol seems to be there: >> $ nm -D /usr/lib/R/lib/libR.so | grep classgets >> 00032e70 T Rf_classgets >> $ nm -D /usr/lib/R/lib/libR.so | grep namesgets >> 00031370 T Rf_dimnamesgets >> 00034500 T Rf_namesgets > > I don't see Rf_rownamesgets there, or in the R Externals manual among > the API entry points listed. Can't you use the documented dimnamesgets?
dimnamesgets is for arrays not data frames. There is no 'rownamesgets' in the current sources, but a static row_names_gets that is called by setAttrib. > > Duncan Murdoch > >> The source includes >> #define R_NO_REMAP 1 >> #include <R.h> >> #include <Rinternals.h> >> and later >> #include <memory> // I think this is why I needed R_NO_REMAP >> >> I realize this is not a complete example, but I'm hoping this will >> ring a bell with someone. I encountered this while running >> R CMD check. The link line generated was >> g++ -shared -o mspath.so AbstractTimeStepsGenerator.o Coefficients.o >> CompositeHistoryComputer.o CompressedTimeStepsGenerator.o Covariates.o >> Data.o Environment.o Evaluator.o FixedTimeStepsGenerator.o LinearProduct.o >> Manager.o Model.o ModelBuilder.o Path.o PathGenerator.o >> PrimitiveHistoryComputer.o SimpleRecorder.o Specification.o >> StateTimeClassifier.o SuccessorGenerator.o TimePoint.o TimeStepsGenerator.o >> mspath.o mspathR.o -L/usr/lib/R/lib -lR >> >> Thanks. >> Ross >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
