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[Rcpp-devel] Using GSL in R with Rcpp

4 messages · Petre Caraiani, Dirk Eddelbuettel

Original
Petre Caraiani
# 
Hello!
I am trying to run the example here:
http://gallery.rcpp.org/articles/gsl-colnorm-example/

I get the following error:

g++ -m64 -I"C:/R/R-30~1.3/include" -DNDEBUG -IC:/GSl-1.16/include
-I"E:/Users/peter/Documents/R/win-library/3.0/Rcpp/include"
-I"E:/Users/peter/Documents/R/win-library/3.0/RcppGSL/include"
-I"d:/RCompile/CRANpkg/extralibs64/local/include"     -O2 -Wall  -mtune=core2
-c test.cpp -o test.o



test.cpp:8:1: error: 'Rcpp' does not name a type



test.cpp: In function 'SEXPREC* sourceCpp_84035_colNorm(SEXP)':



test.cpp:31:50: error: 'colNorm' was not declared in this scope



make: *** [test.o] Error 1



Warning message:



running command 'make -f "C:/R/R-30~1.3/etc/x64/Makeconf" -f
"C:/R/R-30~1.3/share/make/winshlib.mk" SHLIB_LDFLAGS='$(SHLIB_CXXLDFLAGS)'
SHLIB_LD='$(SHLIB_CXXLD)' SHLIB="sourceCpp_54336.dll" WIN=64 TCLBIN=64
OBJECTS="test.o"' had status 2





Error in sourceCpp("test.cpp") :

  Error 1 occurred building shared library.

I have installed GSL using MINGW. I have also set an environmental variable:
LIB_GSL=C:/GSL-1.16 as well added the following values to PATH:
C:\GSL-1.16
C:\GSL-1.16\bin
C:\GSL-1.16\lib
C:\GSL-1.16\share

Thanks!
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Dirk Eddelbuettel
#
On 2 April 2014 at 11:14, Petre Caraiani wrote:
| Hello!
| I am trying to run the example here:
| http://gallery.rcpp.org/articles/gsl-colnorm-example/
| 
| I get the following error:
| 
| g++ -m64 -I"C:/R/R-30~1.3/include" -DNDEBUG -IC:/GSl-1.16/include???? -I"E:
| /Users/peter/Documents/R/win-library/3.0/Rcpp/include" -I"E:/Users/peter/
| Documents/R/win-library/3.0/RcppGSL/include"? -I"d:/RCompile/CRANpkg/
| extralibs64/local/include"???? -O2 -Wall? -mtune=core2 -c test.cpp -o
| test.o

1) Your email does not state how you invoke g++ (or R, which invokes it for you)

2) Your email is not complete as it has no reproducible code

3) Your email refers to a working examples _which still works_ (see below)

4) All you need to know is spelled out in the Rcpp documentation. I am not
going to repeat it here.  See eg the two chapters on 'compiler etc setup' and
RcppGSL in my Rcpp book.

Dirk


edd at max:~ cd /tmp/
edd at max:/tmp$ cp -vax ~/git/rcpp-gallery/src/*colnorm* .
?/home/edd/git/rcpp-gallery/src/2012-12-22-gsl-colnorm-example.cpp? -> ?./2012-12-22-gsl-colnorm-example.cpp?
edd at max:/tmp$ Rscript -e 'library(Rcpp); sourceCpp("2012-12-22-gsl-colnorm-example.cpp")'

R> M <- outer(sin(0:9), rep(1, 10), "*") + outer(rep(1, 
+     10), cos(0:9), "*")

R> colNorm(M)
 [1] 4.31461 3.12050 2.19316 3.26114 2.53416 2.57281 4.20469 3.65202 2.08524 3.07313

R> apply(M, 2, function(x) sqrt(sum(x^2)))
 [1] 4.31461 3.12050 2.19316 3.26114 2.53416 2.57281 4.20469 3.65202 2.08524 3.07313
edd at max:/tmp$
Petre Caraiani
# 
It seems that I am able to run the example in RcppGSL-intro.pdf, section 6,
as far as I use the 32 bits R version.
So, should I just use cxxfunction, or is there another way to make
sourceCpp work for me too?
Thanks!
On Wed, Apr 2, 2014 at 11:14 AM, Petre Caraiani <petre.caraiani at gmail.com>wrote:

            

      
      
      
    

        
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      Dirk Eddelbuettel
    

    

      
      #
    

  


  

      
On 2 April 2014 at 14:26, Petre Caraiani wrote:

        
| It seems that I am able to run the example in RcppGSL-intro.pdf, section 6, as
| far as I use the 32 bits R version.
| So, should I just use cxxfunction, or is there another way to make sourceCpp
| work for me too?

May I suggest you take a look at the available documentation, for example the
excellent Rcpp Attributes vignette?

Dirk