Hi, 2017-09-04 10:22 GMT+02:00 Helske, Jouni <jouni.hel...@jyu.fi>: > Hi, > > > In the bssm package (https://github.com/helske/bssm), I let the users define > a state space model via own C++ functions which are then exported as Xptr to > R side, and passed back to C++ function for SMC/MCMC etc. Normally this > works fine, but when user repeatedly modifies the model functions and > re-exports them via repeated calls sourceCpp, sometimes whole Rstudio > crashes. I haven't been able to pinpoint the reason or minimal example. Have > anyone else experienced similar issues or is it just me i.e. error in my own > implementations?
You can try the same by running R from the command line. If this doesn't crash, the problem is in RStudio. You can also run RStudio with the "-debug" flag or using valgrind to try to delimit the issue. > Simplest case of this is the discretized SDE models, this is the function > which user modifies: > https://github.com/helske/bssm/blob/master/vignettes/sde_functions.cpp, and > the relevant parts of the package codes are in src/function_pointers.h, > src/sde_ssm.cpp and src/R_sde.cpp (I don't really expect anyone to read > through all of these). Let me suggest you the RcppXPtrUtils package (on CRAN) for exporting XPtrs without adding all the repetitive scaffolding: http://gallery.rcpp.org//articles/passing-cpp-function-pointers-rcppxptrutils/ Regards, Iñaki _______________________________________________ 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
