Thank you Serguei, I tried this, but I still get the "undeclared identifier" error for these internal functions during package compilation:
clang++ -arch arm64 -std=gnu++14 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I'/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library/Rcpp/include' -I'/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library/RcppArmadillo/include' -I/opt/R/arm64/include -fPIC -falign-functions=64 -Wall -g -O2 -c testertracenuCpp.cpp -o testertracenuCpp.o testertracenuCpp.cpp:112:9: error: use of undeclared identifier 'matcentrageCpp' i = matcentrageCpp (ti1p, pl, typ1); ^ Jean > Le 23 juin 2022 à 15:17, Serguei Sokol <serguei.so...@gmail.com> a écrit : > > Le 23/06/2022 à 15:02, THIOULOUSE JEAN a écrit : >> Hi >> Sorry to bother you again with my C/C++ problems in the ade4 package >> (available on CRAN & GitHub). >> Thanks to your help, I have succeeded in converting several of the C >> functions to C++ using Rcpp. Now the package compiles without problem and >> all my C++ functions run fine in the dedicated GitHub branch of the package >> (ade4-Rcpp). >> The new problem I am facing now is that in ade4, I use a library of about 30 >> utilities functions collected in one file named adesub.c, with adesub.h >> headers file. From what I understand, during package compilation these >> functions are added to the ade4 shared library and they can be called by my >> other C functions without being declared in the init.c or NAMESPACE files, >> as they do not need to be known by R. >> I would like to know if it is possible to do the same thing in C++ with Rcpp. > If I understand correctly you goal, just don't put "// [[Rcpp::export]]" > before your "internal" functions. They will be available to all C and C++ > functions in src/ but not seen in R. You don't need extra "R CMD SHLIB" > either. > > Best, > Serguei. > > I have found reading the documentation (Dirk's book and Rcpp vignettes) that > I could use R CMD SHLIB to build a shared library and then dyn.load it in R. > I have created a file named ade4lib.cpp containing the utilities functions in > the src directory, and I can make the shared library (ade4lib.so) with RCMD > SHLIB. But this does not solve my problem because, as I understand it, this > makes the utilities library functions available to R (which is useless since > they are not interfaced correctly to R but to C++), and not to the other C++ > functions (which is what i need to do). >> Can anybody see where I am mistaken, and point me to the right direction to >> accomplish this ? >> Thank you, >> Jean >> —- >> Jean THIOULOUSE - >> https://lbbe-web.univ-lyon1.fr/en/annuaires-des-membres/thioulouse-jean >> https://orcid.org/0000-0001-7664-0598 (ORCID page) >> https://www.springer.com/fr/book/9781493988488 (ade4 Book) >> https://pbil.univ-lyon1.fr/JTHome/Biblio/ThioulouseEB2021.pdf (Evol. Biol. >> paper) >> _______________________________________________ >> Rcpp-devel mailing list >> Rcpp-devel@lists.r-forge.r-project.org >> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel > _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel