[Rd] Demo for linking native routines between R packages

[Davis Vaughan]

Nice David! I also wrote up something similar a little while back
https://github.com/DavisVaughan/cexport

-Davis

On Fri, Apr 17, 2020 at 7:09 AM Zhang, Jitao David via R-devel <
r-devel using r-project.org> wrote:

> Dear R developers,
>
> I want to advertise a small project for the educational purpose to show
> people how to link native routines.
>
> In R programming, we need to link to native routines in C, C++, or Fortran
> from the R environment. In most cases, the linking works within one
> package, namely the R code in a package calls the native code in the same
> package.
>
> This is not necessarily always the case. Sometimes, a piece of C or R code
> in a package needs to link to native routines in another R package.
> The *Writing
> R Extensions manual describes *how to do this in the section *Linking to
> native routines in other packages*. However, some details were not clear to
> me, and I could find no demo dedicated to this purpose.
>
> Therefore, I decided to build a demo that is available at my Github
> repository Accio/demo-linking-native
> <https://github.com/Accio/demo-linking-native>. Besides implementing the
> linking of native routines between R packages, the project also documents
> issues that I met and how I solved them.
>
> In case you find the demo useful or you have suggestions on how to improve
> it, please let me know. I wonder whether you think it is a good idea to
> suggest to the core team to add the project to the manual so that other
> people can understand the process better with the demo.
>
> In case of questions, let me know.
>
> Best wishes,
> David
>
> --
>
> *Dr. Jitao David Zhang | 张继涛 | A Computational Biologist in Drug Discovery*
>
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