Re: [Rcpp-devel] Operating on sparse matrices in a list.

2024-12-11 Thread Dirk Eddelbuettel
On 11 December 2024 at 10:40, Kumar MS wrote: | # -- The function in question -- | cppFunction( | "arma::mat accessEntries(Rcpp::List x){ | for(int i=0; i(x[i]); //similar to : https://gallery.rcpp.org/articles/dynamic-dispatch-for-sparse-matrices/ | } | }", You say you return an

[Rcpp-devel] Operating on sparse matrices in a list.

2024-12-11 Thread Kumar MS
Hello Rcpp developers, The following simple code attempts to instantiate every sparse matrix in a given R list of sparse matrices ("dgCMatrix"). The code compiles OK, but crashes at runtime with a segmentation fault. I followed the as<> approach outlined in https://gallery.rcpp.org/articles/dynam