Hello, I'm making a package with Rcpp (and RcppArmadillo) under the latest version of Rstudio (1.3.959) and R (4.0.0).
- The compilation of the cpp files (with clang) is working well clang++ -mmacosx-version-min=10.13 -std=gnu++11 -I"/Library/Frameworks/ R.framework/Resources/include " -DNDEBUG -I'/Library/Frameworks/ R.framework/Versions/4.0/Resources/library/Rcpp/include ' -I'/Library/Frameworks/ R.framework/Versions/4.0/Resources/library/RcppArmadillo/include ' -I/usr/local/include -fPIC -Wall -g -O2 -c compensator_Rcpp.cpp -o compensator_Rcpp.o This command is automatically generated by pushing the Rstudio package dev button "Install and restart" - I want now to [debug the code with lldb](https://kevinushey.github.io/blog/2015/04/13/debugging-with-lldb/) (https://kevinushey.github.io/blog/2015/04/13/debugging-with-lldb/) via the Terminal command R -d lldb in order to check the variable values during the execution via the command frame variable. The problem is most of them are not available: (SEXP) lambda = <variable not available> (Rcpp::NumericVector) beta = <no location, value may have been optimized out> (int) index = <variable not available> - I read in the previous link the following recommandations: > you may consider producing so-called ‘debug’ builds, with optimization toned > down, when attempting to debug these kinds of issues as well. For building R > packages, this effectively amounts to something like CXXFLAGS=-g -O0 in your > ~/.R/Makevars file) - I have tried it but it seems to have no effect under the compilation flags used since I have a local file Makevars in my package to specify the way of [compiling with RcppArdimillo](http://dirk.eddelbuettel.com/blog/2017/06/04/) (http://dirk.eddelbuettel.com/blog/2017/06/04/), whose flags are: CXX_STD = CXX11 PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS) PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) producing the line-command compilation given above, in which there is indeed -g -O2 making some code optimization. Question: how can I have access to the variables in debugging mode? Thanks [[alternative HTML version deleted]] _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
