R devel - May 2004 - R and C++ code

Hello,
 I want to use a C++ library under R, but I have problems.
I have readen the manual: "Writing R Extensions" and the setion "
Interfacing C++ code".
I have created :
//X.cpp
#include "X.h"
#include <iostream>

X::X()
{
  std::cout << "constructor X" << std::endl;
}

X::~X()
{
}


//X.h
#ifndef X_H
#define X_H

class  X
{
   public:
 X();

 ~X();
};
#endif

//X_main.cpp
#include "X.h"

extern "C" {

void X_main(){
X x;
}
}


//essai.R
foo<-function()
{.C("X_main");}

When I execute the file essai.R, the R console returns:

Error in .C("X_main") : C function name not in load table.

If you can help me.
Thank you.

Sandrine

> Hello,
>  I want to use a C++ library under R, but I have problems.
> I have readen the manual: "Writing R Extensions" and the setion
" Interfacing C++ code".
> I have created :
> //X.cpp
> #include "X.h"
> #include <iostream>
>
> X::X()
> {
>   std::cout << "constructor X" << std::endl;
> }
>
> X::~X()
> {
> }
>
>
> //X.h
> #ifndef X_H
> #define X_H
>
> class  X
> {
>    public:
>  X();
>
>  ~X();
> };
> #endif
>
> //X_main.cpp
> #include "X.h"
>
> extern "C" {
>
> void X_main(){
> X x;
> }
> }
>
>
> //essai.R
did you load the shared library via

dyn.load("X_main.so")

?

Torsten
> foo<-function()
> {.C("X_main");}
>
> When I execute the file essai.R, the R console returns:
>
> Error in .C("X_main") : C function name not in load table.
>
> If you can help me.
> Thank you.
>
> Sandrine
>
> ______________________________________________
> R-devel@stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
>
>