Hi Charles, I believe the problem is that the Rcpp package is installed in a directory with spaces in the path (C:/Program Files/R/R-2.15.1/library/) and that this is causing the problem. If you install into a library without spaces in the path everything should work correctly (see: http://stackoverflow.com/questions/9764495/how-to-get-rcpp-to-work-in-r-on-a-windows-xp-platform )
J.J. On Fri, Jan 11, 2013 at 6:11 AM, Charles Cara < charl...@absolute-strategy.com> wrote: > I have been trying to experiment with Rcpp as it looks like it could be an > excellent tool. However, I am unable to get your Finding Pi example ( > http://dirk.eddelbuettel.com/blog/2012/11/20/#rcpp_attributes_pi_example) to > work. > **** > > ** ** > > I have the C++ file and the R script, but sourceCpp fails. When I set > showOutput and verbose to be TRUE then I get the following message. > Looking through the message, it appears that the g++ command line does not > have one of the parameters in quotes (highlighted in green) which is why it > might be interpreted as two (missing) parameters.**** > > ** ** > > It is beyond my limited knowledge whether this is a bug or a problem with > the configuration of my system, details of which are attached.**** > > ** ** > > If you have any suggestions on how to fix this, so that I can go on and > use Rcpp, then I would be grateful.**** > > ** ** > > Best regards**** > > ** ** > > Charles Cara**** > > ** ** > > ** ** > > sourceCpp("src/piSugar.cpp", showOutput=TRUE, verbose=TRUE)**** > > ** ** > > Generated extern "C" functions **** > > --------------------------------------------------------**** > > ** ** > > ** ** > > #include <Rcpp.h>**** > > ** ** > > RcppExport SEXP sourceCpp_49731_piSugar(SEXP NSEXP) {**** > > BEGIN_RCPP**** > > Rcpp::RNGScope __rngScope;**** > > int N = Rcpp::as<int >(NSEXP);**** > > double __result = piSugar(N);**** > > return Rcpp::wrap(__result);**** > > END_RCPP**** > > }**** > > ** ** > > Generated R functions **** > > -------------------------------------------------------**** > > ** ** > > `.sourceCpp_49731_DLLInfo` <- > dyn.load('C:/Users/charlesc/AppData/Local/Temp/RtmpO2NWdT/sourcecpp_16e8276073a/sourceCpp_69065.dll') > **** > > ** ** > > piSugar <- Rcpp:::sourceCppFunction(function(N) {}, > `.sourceCpp_49731_DLLInfo`, 'sourceCpp_49731_piSugar')**** > > ** ** > > rm(`.sourceCpp_49731_DLLInfo`)**** > > ** ** > > Building shared library**** > > --------------------------------------------------------**** > > ** ** > > DIR: C:/Users/charlesc/AppData/Local/Temp/RtmpO2NWdT/sourcecpp_16e8276073a > **** > > ** ** > > C:/PROGRA~1/R/R-215~1.1/bin/i386/R CMD SHLIB -o "sourceCpp_69065.dll" > "piSugar.cpp" **** > > g++ -I"C:/PROGRA~1/R/R-215~1.1/include" -DNDEBUG -I"C:/Program > Files/R/R-2.15.1/library/Rcpp/include" -I"H:/Quantitative Strategy/R > Working folder/3rd party examples/Rcpp and Pi/src" -I"C:/Program > Files/R/R-2.15.1/library/Rcpp/include" -I"H:/Quantitative Strategy/R > Working folder/3rd party examples/Rcpp and Pi/src/../inst/include" -O2 > -Wall -mtune=core2 -c piSugar.cpp -o piSugar.o**** > > g++ -shared -s -static-libgcc -o sourceCpp_69065.dll tmp.def piSugar.o > C:/Program > Files/R/R-2.15.1/library/Rcpp/lib/i386/libRcpp.a-LC:/PROGRA~1/R/R-215~1.1/bin/i386 > -lR > **** > > g++.exe: error: C:/Program: No such file or directory**** > > g++.exe: error: Files/R/R-2.15.1/library/Rcpp/lib/i386/libRcpp.a: No such > file or directory**** > > Error in inDL(x, as.logical(local), as.logical(now), ...) : **** > > unable to load shared object > 'C:/Users/charlesc/AppData/Local/Temp/RtmpO2NWdT/sourcecpp_16e8276073a/sourceCpp_69065.dll': > **** > > LoadLibrary failure: The specified module could not be found.**** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > **** > > Charles Cara > Absolute Strategy Research Ltd. > 1st Floor**** > > 1-2 Royal Exchange Buildings, > London, EC3V 3LF > > +44 207-073-0738 (direct line) > +44 207-073-0732 (fax) > -------------------------------------------------- > Absolute Strategy Research Ltd is authorised and regulated by the > Financial Services Authority. 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