Hi Tal,
> That is, say that we have x as a List, how do we go about fetching its
attr?
> I tried:
> x[1].attr("type")
> x.attr[1]("type")
> But none seemed to have worked. Any suggestions there?
Here is a script to show you how to access them:
```r
x <- list(a = 1, b = 2, c = list(ca = 3, cb = 4, 5), 6)
attr(x[[1]], "type") = "fun"
attr(x[[3]][[1]], "type") = "fun"
x
library(inline);library(Rcpp)
f <- cxxfunction(sig=c(Rx="list"), plugin="Rcpp", body='
List x(Rx);
IntegerVector a(wrap(x[0]));
Rcout << as<std::string>(a.attr("type")) << std::endl;
List c(wrap(x[2]));
IntegerVector ca(wrap(c[0]));
Rcout << as<std::string>(ca.attr("type")) << std::endl;
')
f(x)
```
I hope it helps.
Wush
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