[Rcpp-devel] Rcpp catching a domain error

[Qiang Kou]

Of course, if you think it is necessary.

I met a very similar problem about one year ago. GSL is a pure C library,
and try/catch is something in C++.

Best,

KK

On Thu, Dec 11, 2014 at 10:36 AM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
>
> Qiang, how about wrapping ten lines of context around
> it and making it an Rcpp Gallery post?  This ought to be documented....
>
> Dirk
>
> |
> |
> | On Thu, Dec 11, 2014 at 10:03 AM, Devin <devin.heer at gmail.com> wrote:
> |
> |
> |     Dear list
> |
> |
> |
> |     My Rcpp source file contains a gsl_sf_hyperg_2F1() function, and for
> some
> |     input values to this function the return value is “NaN”, which leads
> in
> |     RStudio to an abortion error.
> |
> |
> |
> |     In order to avoid abortion errors, I try to implement a try/catch
> exception
> |     handler:
> |
> |
> |     // [[Rcpp::depends(RcppGSL)]]
> |
> |     #include <RcppGSL.h>
> |
> |     #include <gsl/gsl_sf_hyperg.h>
> |
> |
> |
> |     #include <Rcpp.h>
> |
> |     #include <math.h>
> |
> |     using namespace Rcpp;
> |
> |
> |
> |     // [[Rcpp::export]]
> |
> |     int test()
> |
> |     {
> |
> |         try{
> |
> |             gsl_sf_hyperg_2F1(1,1,1.1467003,1); //  abortion error since
> not
> |     defined
> |
> |         }
> |
> |         catch(std::domain_error& e){
> |
> |             std::cout << "Domain Error occurred!"  << std::endl;
> |
> |         }
> |
> |         return 0;
> |
> |     }
> |
> |
> |
> |     This seems to be wrong, since it still causes an abortion error in
> RStudio.
> |
> |
> |
> |     I appreciate any input
> |
> |
> |
> |     Thanks
> |
> |     Devin
> |
> |
> |
> |
> |     _______________________________________________
> |     Rcpp-devel mailing list
> |     Rcpp-devel at lists.r-forge.r-project.org
> |
> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
> |
> |
> |
> |
> | --
> | Qiang Kou
> | qkou at umail.iu.edu
> | School of Informatics and Computing, Indiana University
> |
> | _______________________________________________
> | Rcpp-devel mailing list
> | Rcpp-devel at lists.r-forge.r-project.org
> | https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
>
> --
> http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org
>



-- 
Qiang Kou
qkou at umail.iu.edu
School of Informatics and Computing, Indiana University
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