Hi Tal, ``` cppFunction(' std::vector<RObject> temp2_fail(RObject x){ std::vector<RObject> lower; List x_list(wrap(x)); int n = x_list.size(); lower.push_back(x); return(lower) ; } ') ```
Is this what you want? 2013/8/20 Tal Galili <tal.gal...@gmail.com> > Dear list members, > > I would like to be able to get an element pushed with its attributes, and > I came across the following problem: > > cppFunction(' > std::vector<List> temp(List x){ > std::vector<List> lower; > lower.push_back(x); > return(lower) ; > } > ') > x = list(structure(1L, animal = "cat")) > temp(x) > temp(x[1]) > temp(x[[1]]) # is there a way to not make this output without attributes? > > > > If I use RObject, it will solve it, but then I would later not be able to > iterate over the object, because I can't seem to get the .size() of an > RObject. > > Here is the code with the RObject: > > > cppFunction(' > std::vector<RObject> temp2(RObject x){ > std::vector<RObject> lower; > lower.push_back(x); > return(lower) ; > } > ') > x = list(structure(1L, animal = "cat")) > temp2(x) > temp2(x[1]) > temp2(x[[1]]) # Now it works as I want, but the following wouldn't work: > > > > > cppFunction(' > std::vector<RObject> temp2_fail(RObject x){ > std::vector<RObject> lower; > int n x.size(); > lower.push_back(x); > return(lower) ; > } > ') > > > > Any ideas? > > > > > ----------------Contact > Details:------------------------------------------------------- > Contact me: tal.gal...@gmail.com | > Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | > www.r-statistics.com (English) > > ---------------------------------------------------------------------------------------------- > > > _______________________________________________ > 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 >
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