[Rcpp-devel] installing Rcpp on windows

[Dirk Eddelbuettel]

Hi Jeffrey,

On 24 August 2011 at 13:08, Jeffrey Pollock wrote:
| Hello,
| 
| I'm trying to get Rcpp to work on my machine running Windows 7 64 bit but I'm
| not having much luck!
| 
| I've reinstalled R in: C:\opt\R-2.13.1
| and have: C:\Rtools\MinGW64
| my path variables are set as: C:\Rtools\bin;C:\Rtools\perl\bin;C:\Rtools\
| MinGW64\bin;C:\opt\R-2.13.1\bin\x64;C:\Program Files\Java\jdk1.6.0_25\bin;C:\
| Program Files\TortoiseSVN\bin;%JAVA_HOME%\bin;%MAVEN_HOME%\bin
| 
| Trying some examples from the help pdf I get the following error, can anyone
| help?
| 
| > library(inline)
| > library(Rcpp)
| > src <- '
| + Rcpp::NumericVectorxa(a);
| + Rcpp::NumericVectorxb(b);

You are lacking critical spaces:

  Rcpp::NumericVector xa(a);
  Rcpp::NumericVector xb(b);

Rcpp::NumericVector is the type, xa is the variable of that type and a is the
SEXP used to init it.

| + intn_xa=xa.size(),n_xb=xb.size();
| +
| + Rcpp::NumericVectorxab(n_xa+n_xb-1);
| + for(inti=0;i<n_xa;i++)
| +     for(intj=0;j<n_xb;j++)
| +         xab[i+j]+=xa[i]*xb[j];
| + returnxab;
| + '
| > fun <- cxxfunction(signature(a = "numeric", b = "numeric"), src, plugin =
| "Rcpp")
| cygwin warning:
|   MS-DOS style path detected: C:/opt/R-213~1.1/etc/x64/Makeconf
|   Preferred POSIX equivalent is: /cygdrive/c/opt/R-213~1.1/etc/x64/Makeconf
|   CYGWIN environment variable option "nodosfilewarning" turns off this
| warning.
|   Consult the user's guide for more details about POSIX paths:
|     http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
| file788a7664.cpp: In function 'SEXPREC* file788a7664(SEXPREC*, SEXPREC*)':
| file788a7664.cpp:31:1: error: 'NumericVectorxa' is not a member of 'Rcpp'
| file788a7664.cpp:32:1: error: 'NumericVectorxb' is not a member of 'Rcpp'

The error was quite clear: unknown type.

Maybe trying the examples in the examples/ directory is easier as you may
avoid copy and paste errors?

Dirk

| file788a7664.cpp:33:1: error: 'intn_xa' was not declared in this scope
| file788a7664.cpp:33:9: error: 'xa' was not declared in this scope
| file788a7664.cpp:33:19: error: 'n_xb' was not declared in this scope
| file788a7664.cpp:33:24: error: 'xb' was not declared in this scope
| file788a7664.cpp:35:1: error: 'NumericVectorxab' is not a member of 'Rcpp'
| file788a7664.cpp:35:24: error: 'n_xa' was not declared in this scope
| file788a7664.cpp:36:5: error: 'inti' was not declared in this scope
| file788a7664.cpp:36:12: error: 'i' was not declared in this scope
| file788a7664.cpp:37:6: error: 'intj' was not declared in this scope
| file788a7664.cpp:37:13: error: 'j' was not declared in this scope
| file788a7664.cpp:38:3: error: 'xab' was not declared in this scope
| file788a7664.cpp:39:1: error: 'returnxab' was not declared in this scope
| make: *** [file788a7664.o] Error 1
| 
| ERROR(s) during compilation: source code errors or compiler configuration
| errors!
| 
| Program source:
|   1:
|   2: // includes from the plugin
|   3:
|   4: #include <Rcpp.h>
|   5:
|   6:
|   7: #ifndef BEGIN_RCPP
|   8: #define BEGIN_RCPP
|   9: #endif
|  10:
|  11: #ifndef END_RCPP
|  12: #define END_RCPP
|  13: #endif
|  14:
|  15: using namespace Rcpp;
|  16:
|  17:
|  18: // user includes
|  19:
|  20:
|  21: // declarations
|  22: extern "C" {
|  23: SEXP file788a7664( SEXP a, SEXP b) ;
|  24: }
|  25:
|  26: // definition
|  27:
|  28: SEXP file788a7664( SEXP a, SEXP b ){
|  29: BEGIN_RCPP
|  30:
|  31: Rcpp::NumericVectorxa(a);
|  32: Rcpp::NumericVectorxb(b);
|  33: intn_xa=xa.size(),n_xb=xb.size();
|  34:
|  35: Rcpp::NumericVectorxab(n_xa+n_xb-1);
|  36: for(inti=0;i<n_xa;i++)
|  37:     for(intj=0;j<n_xb;j++)
|  38:         xab[i+j]+=xa[i]*xb[j];
|  39: returnxab;
|  40:
|  41: END_RCPP
|  42: }
|  43:
|  44:
| Error in compileCode(f, code, language = language, verbose = verbose) :
|   Compilation ERROR, function(s)/method(s) not created! cygwin warning:
|   MS-DOS style path detected: C:/opt/R-213~1.1/etc/x64/Makeconf
|   Preferred POSIX equivalent is: /cygdrive/c/opt/R-213~1.1/etc/x64/Makeconf
|   CYGWIN environment variable option "nodosfilewarning" turns off this
| warning.
|   Consult the user's guide for more details about POSIX paths:
|     http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
| file788a7664.cpp: In function 'SEXPREC* file788a7664(SEXPREC*, SEXPREC*)':
| file788a7664.cpp:31:1: error: 'NumericVectorxa' is not a member of 'Rcpp'
| file788a7664.cpp:32:1: error: 'NumericVectorxb' is not a member of 'Rcpp'
| file788a7664.cpp:33:1: error: 'intn_xa' was not declared in this scope
| file788a7664.cpp:33:9: error: 'xa' was not declared in this scope
| file788a7664.cpp:33:19: error: 'n_xb' was not declared in this scope
| file788a7664.cpp:33:24: error: 'xb' was not declared in this scope
| file788a7664.cpp:35:1: error: 'NumericVectorxab' is not a member of 'Rcpp'
| fil
| In addition: Warning message:
| running command 'C:/opt/R-2.13.1/bin/x64/R CMD SHLIB file788a7664.cpp 2>
| file788a7664.cpp.err.txt' had status 1
| 
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-- 
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