Oh, and it should work the same for cube types: R> cppFunction("void test2(arma::cube & x) { x(0,0,0) = 0.5; }", R> depends="RcppArmadillo") R> v <- array(sqrt(1:8), c(2, 2, 2)) R> v , , 1
[,1] [,2] [1,] 1.00000 1.73205 [2,] 1.41421 2.00000 , , 2 [,1] [,2] [1,] 2.23607 2.64575 [2,] 2.44949 2.82843 R> test2(v) R> v , , 1 [,1] [,2] [1,] 0.50000 1.73205 [2,] 1.41421 2.00000 , , 2 [,1] [,2] [1,] 2.23607 2.64575 [2,] 2.44949 2.82843 R> Proxy object that still connected to the outside object, unless a cast is needed (int <-> double), or a copy is enforced (clone(), possibly via as<>()). Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org _______________________________________________ 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