[Rcpp-devel] Bug with table sugar and NumericVector in Rcpp 0.10.3

[romain at r-enthusiasts.com]

Le 2013-03-29 14:31, Dirk Eddelbuettel a écrit :
> On 29 March 2013 at 09:11, romain at r-enthusiasts.com wrote:
> |
> | Hello,
> |
> | This is related to this change:
> |
> | 2013-01-15  Dirk Eddelbuettel  <edd at debian.org>
> |
> | 	* src/api.cpp (Rcpp): Commented-out coerce_to_string() for real 
> and
> | 	complex arguments as R-devel (as of today) dislikes use of non-API
> | 	functions Rf_EncodeComplex’, ‘Rf_EncodeReal’, ‘Rf_formatComplex’
> |
> | So maybe Dirk has a plan to fix it.
>
> I do not.

Fine. So I'll fix it.

> I had a choice to make between
>
>   a) keeping Rcpp on CRAN
>
>   b) keeping that feature.
>
> I chose a).
>
> If someone needs b), patches are always welcome.  It should not be 
> hard to
> support conversion to character.
>
> It wasn't the first time, and likely not the last time, that I had to 
> curtail
> code of yours to make a release possible.  Such is life.
>
> You write a lot of great code, but some violates some CRAN guidelines
> (which unfortunately change over time) and some break other things. 
> So
> sometimes we do need to revert.
>
> Dirk
>
> | Romain
> |
> | Le 2013-03-29 07:27, Kevin Ushey a écrit :
> | > Hi guys,
> | >
> | > When I attempt to 'sourceCpp' the following code, the R session
> | > crashes:
> | >
> | > #include <Rcpp.h>
> | > using namespace Rcpp;
> | >
> | > // [[Rcpp::export]]
> | > IntegerVector counts(NumericVector x) {
> | >   return table(x);
> | > }
> | >
> | > The same code worked in Rcpp 0.10.2.
> | >
> | > A hint to the error comes if I try to compile a package with that
> | > source code in a .cpp file: I get the error, when attempting to 
> load
> | > the package:
> | >
> | >
> 
> dlopen(/Library/Frameworks/R.framework/Versions/2.15/Resources/library/anRpackage/libs/x86_64/anRpackage.so,
> | > 6): Symbol not found:
> | >
> | >
> 
> __ZN4Rcpp8internal16coerce_to_stringILi14EEEPKcNS_6traits12storage_typeIXT_EE4typeE
> | >    Referenced from:
> | >
> | >
> 
> /Library/Frameworks/R.framework/Versions/2.15/Resources/library/anRpackage/libs/x86_64/anRpackage.so
> | >   Expected in: flat namespace
> | >  in
> | >
> | >
> 
> /Library/Frameworks/R.framework/Versions/2.15/Resources/library/anRpackage/libs/x86_64/anRpackage.so
> | >
> | > This is with R 2.15.3 on Mac OSX 10.8.3.
> | >
> | > -----
> | >
> | > In addition, if I attempt to compile Rcpp from source (with gcc 
> 4.8)
> | > I
> | > get the following warnings:
> | >
> | >> install.packages("Rcpp", type="source",
> | > INSTALL_opts="--no-multiarch")
> | > Installing package(s) into
> | > ‘/Library/Frameworks/R.framework/Versions/2.15/Resources/library’
> | > (as ‘lib’ is unspecified)
> | > trying URL 
> 'http://cran.rstudio.com/src/contrib/Rcpp_0.10.3.tar.gz
> | > [1]'
> | > Content type 'application/x-gzip' length 2395986 bytes (2.3 Mb)
> | > opened URL
> | > ==================================================
> | > downloaded 2.3 Mb
> | >
> | > * installing *source* package ‘Rcpp’ ...
> | > ** package ‘Rcpp’ successfully unpacked and MD5 sums checked
> | > ** libs
> | > *** arch - x86_64
> | > g++ -arch x86_64 
> -I/Library/Frameworks/R.framework/Resources/include
> | > -I/Library/Frameworks/R.framework/Resources/include/x86_64 
> -DNDEBUG
> | > -I../inst/include/ -I/usr/local/include    -fPIC  -g -O3 -Wall
> | > -pedantic -c Date.cpp -o Date.o
> | > g++ -arch x86_64 
> -I/Library/Frameworks/R.framework/Resources/include
> | > -I/Library/Frameworks/R.framework/Resources/include/x86_64 
> -DNDEBUG
> | > -I../inst/include/ -I/usr/local/include    -fPIC  -g -O3 -Wall
> | > -pedantic -c Module.cpp -o Module.o
> | > In file included from ../inst/include/Rcpp/Module.h:352:0,
> | >                  from ../inst/include/Rcpp.h:63,
> | >                  from Module.cpp:22:
> | > ../inst/include/Rcpp/module/class.h: In member function
> | > ‘Rcpp::class_<Class>::self& Rcpp::class_<Class>::derives(const
> | > char*)’:
> | > ../inst/include/Rcpp/module/class.h:495:56: warning: typedef
> | > ‘parent_prop_class’ locally defined but not used
> | > [-Wunused-local-typedefs]
> | >              typedef typename parent_class_::prop_class
> | > parent_prop_class ;
> | > <snip, snip>
> | >
> | > although the package does install successfully. Not sure if it's
> | > related or not.
> | >
> | > Thanks,
> | > -Kevin
> | >
> | > Links:
> | > ------
> | > [1] http://cran.rstudio.com/src/contrib/Rcpp_0.10.3.tar.gz
> |
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