Hi everybody, my apologies in advance if i missed something obvious in
documentation or misinterpreted things. I started experimenting with Rcpp
modules and it seems to do in simpler cases exactly what i need. However, I
am stuck on something that is probably very common
I am using the class for which constructor has 11 parameters, some of which
are pointers to doubles.
Strategy s(double *, double *, double *, double *, double *, int, int, int,
double, double, double)
Pointers point to memory containing matrices that armadillo code inside
the class Strategy works works with. According to what i read in rcpp
module docs, a class could be defined in rcpp module only if constructor
has six or less parameters. So it seems that the only way for me to use the
class from R is to write a Rcpp function that would get called from R with
a signature
RcppExport void helper(SEXP, SEXP, ...., SEXP){
//convert input parameters
Strategy s(....);
//do whatever needs to be done in Strategy
}
and call constructor within C++ code and then return to R. Is this the
best way to use Rcpp things in my circumstance?
Also, if i take this approach, how would I pass pointers to double to a
C++ constructor? It seems i need to convert SEXP that i receive from R to
double * in Rcpp framework -- it seems that as<>() template wouldn't
convert to a pointer. I could use of course .C interface, but i wanted to
use Rcpp for a number of C++ classes in a uniform way, regardless of the
number of parameters in the constructor.
_______________________________________________
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
