I have been running into yet another memory problem in testing the development version of lme4. After doing the usual valgrind, gctorture, gdb, etc. dance I found that the problem was originating in the destructor of an Eigen object that included some cholmod structures. The problem was that the particular place where it was failing is not a place where it should have gotten to. (It should only have called cholmod_free_factor and it was failing in cholmod_free_dense. Both of these are routines that are exposed through the funky R_GetCCallable function in RcppEigen/inst/include/RcppEigenStubs.h). The problem went away when I switched to g++. For the time being I would recommend caution if you choose to use clang++ to compile code linking to RcppEigen. _______________________________________________ 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
