[Rcpp-devel] Loading a package using Rcpp Modules results in memory corruption

[Dirk Eddelbuettel]

On 10 January 2011 at 10:10, Dominick Samperi wrote:
| 
| 
| On Sun, Jan 9, 2011 at 1:52 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
| 
| 
|     On 9 January 2011 at 12:41, Douglas Bates wrote:
|     | I'm sorry to say that I will need to abandon the debugging of this.
|     |
|     | I have converted the code in Rcpp/R/exceptions.R to using a R
|     | functions with a common environment to keep track of the error
|     | conditions.  I can get access to those from within the C++ code
|     | through values established during the execution of R_init_Rcpp but the
|     | next time I try to use them in the C++ code they are gone, although
|     | they are still there are the R side.  It is bizarre - I have no idea
|     | what is going on.
|     |
|     | Anyway, I need to turn my attention back to lme4a.  I am giving a
|     | short course starting tomorrow and must have a version of lme4a that
|     | can compile and run.  I have been converting it to use Rcpp Modules
|     | and it looks like I will need to strip all that code out.  I hope that
|     | the problems with memory protection are isolated in the Modules
|     | sections of Rcpp.
| 
|     Thanks for all your help on modules.
| 
|     You have been pushing this harder and further than anybody else, and it is
|     too bad that it turned out to be inapplicable for your use case, at least
|     in
|     the current state of affairs.
| 
|     Modules work for my use case. I may upload the wrapping of Boost Date_Time
|     to
|     CRAN one of these days.  Should write some more documentation though.
|     Writing that small package was a rather pleasant experience.
| 
| 
| It seems to me that memory corruption issues are not a matter of "use case"
| and fixing them should be given the highest priority. Am I missing something
| here?

We (somewhat breathlessly) await your patches. 

Dirk
 
|     In case anybody wants to look at that, it is on R-Forge inside the Rcpp
|     repo.
| 
|     Dirk
| 
|     --
|     Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
| 
| 

-- 
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com