[Rcpp-devel] Idiom for accessing scalars

[Hadley Wickham]

>> And is there a standard for what you call the C++ equivalent of the R
>> arguments?  i.e. x_ = as<int>(x) ?
>
> I don't think there's a "standard" per se, but I actually tend to do
> it the other way, ie. put the trailing slash on the incoming SEXP
> arguments so that my c(++) code is a bit less tedious:
>
> f<- cxxfunction(signature(x_="integer"), plugin = "Rcpp", '
>  int x = as<int>(x_);
>  ...
> ')

And then your thin wrapper function would be something like:

my_f <- function(x) f(x_ = x)

right?

Hadley

-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/