Rcpp attributes only work for global/free functions rather than class
members. If you want to share clashes between packages the only good way to
do it is header-only classes that you put in inst/include.
On Mon, Aug 15, 2016 at 6:17 AM Charles Determan <cdeterma...@gmail.com>
wrote:
> Greetings,
>
> I am trying to integrate some packages of mine so they can share some of
> the same C++ functions (not exposed to the R front-end user). Here is my
> basic structure of the package I wish to export functions.
>
> Class defined in header (foo.h) complete with all public and private
> members.
>
> Members defined in cpp file (foo.cpp).
> This is also where I thought I could use the Rcpp::interfaces(cpp)
> function generate the header file automatically (as I am not aware of a
> nice linking operation between multiple package .so files). So each method
> is prefixed with //[[Rcpp::export]] for the package building.
>
> I liked this approach because I wouldn't have to rewrite all my methods to
> the header file manually. However, this doesn't appear to be working. I
> am getting errors on the first method (I have tried only exporting one
> method and I get the same error).
>
>
> In file included from ../inst/include/gpuR.h:7:0,
> from RcppExports.cpp:4:
> ../inst/include/gpuR_RcppExports.h:28:20: error: expected unqualified-id
> before ‘<’ token
> inline template<typename T> dynEigenMat<T>::dynEigenMat(SEXP A_) {
> ^
> RcppExports.cpp:3313:1: error: expected ‘;’ at end of input
> }
> ^
> RcppExports.cpp:3313:1: error: expected ‘}’ at end of input
>
>
> Any insight would be appreciated. Not sure if it is a problem with using
> the template methods or if this means I simply have a typo somewhere (I
> don't think so given that the code works without using the Rcpp interfaces
> attribute.
>
> Regards,
> Charles
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