[Rcpp-devel] Error when trying to your piSugar example

Fri Jan 11 13:10:15 CET 2013

Thank you.  I will have a go at changing the directory when I upgrade to
R-2.15.2  .

Charles

From: JJ Allaire [mailto:jj.allaire at gmail.com] 
Sent: 11 January 2013 11:33
To: Charles Cara
Cc: rcpp-devel at lists.r-forge.r-project.org
Subject: Re: [Rcpp-devel] Error when trying to your piSugar example

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
<CharlesC at 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_exampl
e ) 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_16e8
276073a/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/s
ourceCpp_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 <tel:%2B44%20207-073-0738>  (direct line)
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