[Rcpp-devel] experimental handling of uncaught exceptions

[Dirk Eddelbuettel]

On 27 December 2009 at 13:36, Dirk Eddelbuettel wrote:
| On 27 December 2009 at 18:15, Romain François wrote:
| | Hi,
| | 
| | I've commited some code that aims at forwarding uncaught C++ exceptions 
| | to R.
| | 
| | For example :
| | 
| | require( Rcpp)
| | funx <- cfunction(signature(), '
| | throw std::range_error("boom") ;
| | return R_NilValue ;
| | ', Rcpp=TRUE, verbose=FALSE)
| | tryCatch(  funx(), "C++Error" = function(e){
| | 	print( "gotcha" )
| | } )
| | print( rnorm(10) )
| 
| That's pretty crazy cool -- I'll have to try that.

Can we get access to the string 'boom' at the R level?  That's how the
existing C++-based try/catch -> Rf_error() works.

Also, the onAttach trick won't work for other packages just including Rcpp.h
et al and linking to libRcpp.{so,a}. 
 
Dirk

-- 
Three out of two people have difficulties with fractions.