[Rcpp-devel] Simple problem with modules

[Romain Francois]

Hello,

I think this is about having

const NumericVector& x_;

In your class definition.

It all works fine for me when I switch to

NumericVector x_ ;

and leave everything else unchanged.


I'm not sure what the problem is though.

Romain

Le 20/02/13 22:14, Hadley Wickham a écrit :
> I've attached a somewhat tweaked example which I think might indicate
> that modules don't know about const NumericVector&?
>
>
>> GroupFixed <- m$GroupFixed
>
>> g <- GroupFixed$new(x, 0.1, 0)
>
>> g$size()
> [1] 1
>
>> g$bin(1L)
> [1] 0
>
>> g$get(1L)
> [1] 6.953223e-310
>
>
> The answers should be 8, 100 and 0.08075014 respectively.
>
> Hadley
>
>
> On Wed, Feb 20, 2013 at 11:39 AM, Hadley Wickham <h.wickham at gmail.com> wrote:
>> Hi all,
>>
>> I'm having a simple problem with modules - when I instantiating the
>> object and call the methods in C++, I get a different answer from
>> instantiating and calling the methods in R via a module.  I've
>> attached a simple test case that you can run with sourceCpp() - when I
>> run it (using svn rev 4264 or CRAN version) I get 0 instead of 8. What
>> am I doing wrong?
>>
>> Thanks!
>>
>> Hadley
>>
>> --
>> Chief Scientist, RStudio
>> http://had.co.nz/

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