Message-ID: <BANLkTimE0J30bz2sRg57qN_BU9fzfFT2Nw@mail.gmail.com>
Date: 2011-05-16T08:28:23Z
From: Jelmer Ypma
Subject: [Rcpp-devel] Re-using C++ code from a package with modules and defining linker flags using Rscript
In-Reply-To: <19920.21531.172177.911776@max.nulle.part>
Thanks for both your replies. I got it working the way I wanted. If
someone's interested, a simple example with two packages can be
downloaded here: http://www.ucl.ac.uk/~uctpjyy/downloads/RcppEx.zip
QuadFunc defines a C++ class that is used in C++ code in QuadFuncVec.
Jelmer
On Mon, May 16, 2011 at 00:30, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> On 15 May 2011 at 17:22, Douglas Bates wrote:
> | On May 15, 2011 5:17 PM, "Dirk Eddelbuettel" <edd at debian.org> wrote:
> | > On 15 May 2011 at 21:42, Jelmer Ypma wrote:
> | > | Is this the recommended way of adding linker and cxx flags to packages
> | > | depending on other R packages with modules? I tried to look at
> | >
> | > We simply show no example of definiting object code in one package and having
> | > other packages use it -- with the exception of the Rcpp package itself. ?And
> | > there it takes quite some effort to make this happen.
> | >
> | > You could look at what lme4 and Matrix do; this is documented in the 'Writing
> | > R Extensions' manual under '[Section] 5.4 Registering native routines'.
> |
> | Unfortunately that approach doesn't work with C++ classes and methods, which is
> | one of the reasons that Rcpp linkage has to be done the way that it is.? The
> | exporting of symbols a as done by Matrix is restricted to C function entry
> | points.
>
> Ah, yes, that aspect too. Meant to mention, thanks for catching it.
>
> In short: no beans. ?You may have to build one larger package.
>
> Dirk
>
> --
> Gauss once played himself in a zero-sum game and won $50.
> ? ? ? ? ? ? ? ? ? ? ?-- #11 at http://www.gaussfacts.com
>