[R] C structures in R

[Barry Rowlingson]

Prof Brian Ripley wrote:

> The short answer is that quite a bit of code, e.g pwilcox and RODBC, 
> does things like this.  You don't need to pass the pointer back to R, 
> but if you do external pointers are designed for this job.  

  [reads a bit more of 'Writing R Extensions'...]

  Right yes, this does look like the tool for the job. I'll try and come 
up with a minimal example that duplicates what I'm doing with raw and 
pointers, it might be a useful illustration in the documentation.

Barry