#include <Rcpp11> file not found error

Question

I am attempting to use the Rcpp11 package in r from it's source over at:

devtools::install_github("Rcpp11/Rcpp11")

I read here: http://blog.r-enthusiasts.com/2014/05/27/disambiguating-rcpp11-and-rcpp/

that I can use include <Rcpp11> + using namespace Rcpp11 at the head of my .cpp file but I get this error upon sourcing:

 egfile.cpp:1:10: fatal error: 'Rcpp11' file not found
 #include <Rcpp11>
           ^
 1 error generated.

where egfile.cpp:

#include <Rcpp11>
using namespace Rcpp11;

// Below is a simple example of exporting a C++ function to R. You can
// source this function into an R session using the Rcpp::sourceCpp 
// function (or via the Source button on the editor toolbar)

// For more on using Rcpp click the Help button on the editor toolbar

// [[Rcpp::export]]
int timesTwo(int x) {
   return x * 2;
}

Any help with this? or should I defer to the // [[Rcpp::plugins(cpp11)]] method ?

Update: using the attributes::sourceCpp()

devtools::install_github("Rcpp11/attributes")

then restart from a clean session:

library(Rcpp11)
attributes::sourceCpp("egfile.cpp") # in home directory.

I get:

In file included from file2c1e303c4ed6.cpp:1:
    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_pnorm' in the global namespace
RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
#define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:14:31: note: expanded from macro 'RCPP_DPQ'
decltype(sapply( x, ::Rf_p##__NAME__, VAL, lower, log ))                                          \
                 ~~^
                     <scratch space>:208:1: note: expanded from here
                 Rf_pnorm
                 ^
                     In file included from file2c1e303c4ed6.cpp:1:
                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_pnorm' in the global namespace
                 RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
                 #define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:16:29: note: expanded from macro 'RCPP_DPQ'
                 return sapply( x, ::Rf_p##__NAME__, VAL, lower, log ) ;                                                      \
                                ~~^
                                    <scratch space>:208:1: note: expanded from here
                                Rf_pnorm
                                ^
                                    In file included from file2c1e303c4ed6.cpp:1:
                                    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
                                    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
                                    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_qnorm' in the global namespace
                                RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
                                #define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:20:31: note: expanded from macro 'RCPP_DPQ'
                                decltype(sapply( x, ::Rf_q##__NAME__, VAL, lower, log ))                                          \
                                                 ~~^
                                                     <scratch space>:208:1: note: expanded from here
                                                 Rf_qnorm
                                                 ^
                                                     In file included from file2c1e303c4ed6.cpp:1:
                                                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
                                                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
                                                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_qnorm' in the global namespace
                                                 RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
                                                 #define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:22:29: note: expanded from macro 'RCPP_DPQ'
                                                 return sapply( x, ::Rf_q##__NAME__, VAL, lower, log ) ;                                                      \
                                                                ~~^
                                                                    <scratch space>:208:1: note: expanded from here
                                                                Rf_qnorm
                                                                ^
                                                                    4 errors generated.
                                                                make: *** [file2c1e303c4ed6.o] Error 1
                                                                Error in dyn.load(basename(dynlib)) : 
                                                                    unable to load shared object '/private/var/folders/77/9nq5hj5d37b1rhbzdt0z3twr0000gn/T/RtmpcjWOsg/file2c1e303c4ed6.so':
                                                                    dlopen(/private/var/folders/77/9nq5hj5d37b1rhbzdt0z3twr0000gn/T/RtmpcjWOsg/file2c1e303c4ed6.so, 6): image not found
                                                                In addition: Warning message:
                                                                    running command '/Library/Frameworks/R.framework/Resources/bin/R CMD SHLIB 'file2c1e303c4ed6.cpp'' had status 1 

Answer 1

Presumably, you are trying to compile it from R Studio, which will use Rcpp::sourceCpp. You need the implementation of sourceCpp from the attributes package to generate the glue code for Rcpp11. attributes is available from github:

devtools::install_github("Rcpp11/attributes")

Then use this version to compile your file, i.e.

attributes::sourceCpp( "yourfile.cpp" )

Compiling an Rcpp11 file using Rstudio ui is something we have not yet dealt with, but something we identified as needed here