Salut Pascal,
Thanks for posting here.
On 28 December 2011 at 19:20, paspa...@noos.fr wrote:
| Hello
|
| I have trouble running Rcpp on a Ubuntu 11.04 machine with Netbeans
|
| I have done the following things:
|
| 1-install r-base-dev and r-cran-rcpp from the ubuntu synaptic
| 2-collect the headers Rcpp,Rcppcomon, take also the includes directory Rcpp
and
| R_Ext
| 3- link with libRcpp.so and libR.so
| 4- compile the following code with no problem
| #include "Rcpp.h"
| main()
| {
| Rcpp::NumericVector ab(2);
| }
| 5- get a RUN FAILED message from netbeans
|
| do I miss something? thanks a lot in advance for information
a) First off, please show complete compile and link instructions. You may
need to set the rpath etc.
I would recomment trying to get the build done 'by hand' on a shell
prompt.
b) Your example reveals a certain lack of familiarity with what Rcpp is and
does. Rcpp is primarily for easuer R and C++ data exchange, mostly in
the context of main add-on functions for R using the .Call() interface
described in Writing R Extensions.
The example as you coded /will/ segfault as there is is no related R
instance anywhere. You either use Rcpp to extend _an already running R
instance_ with your functions or package, or use RInside -- see the next
point.
c) If you want to add R to a standalone C++ program, you probably want to
look at RInside. It has _dozens_ of examples that build when you do
'make' in the example directory. Try to understand how they are built
before switching to Netbeans.
For your example, I copied to code to the (SVN source) directory of the
package examples; the Makefile automatically adapts for building 'foo'
from 'foo.cpp'. I also added the RInside header, and made sure R gets
instantiated:
-----------------------------------------------------------------------------
edd@max:~/svn/rinside/pkg/inst/examples/standard$ cat pascal.cpp
#include "RInside.h"
int main(int argc, char *argv[]) {
RInside R(argc, argv); // basic R instance
Rcpp::NumericVector ab(2);
Rprintf("The end.\n");
return 0;
}
edd@max:~/svn/rinside/pkg/inst/examples/standard$ make pascal
g++ -I/usr/share/R/include -I/usr/local/lib/R/site-library/Rcpp/include
-I/usr/local/lib/R/site-library/RInside/include -O3 -pipe -g -Wall
pascal.cpp -L/usr/lib/R/lib -lR -lblas -llapack
-L/usr/local/lib/R/site-library/Rcpp/lib -lRcpp
-Wl,-rpath,/usr/local/lib/R/site-library/Rcpp/lib
-L/usr/local/lib/R/site-library/RInside/lib -lRInside
-Wl,-rpath,/usr/local/lib/R/site-library/RInside/lib -o pascal
edd@max:~/svn/rinside/pkg/inst/examples/standard$ ./pascal
The end.
edd@max:~/svn/rinside/pkg/inst/examples/standard$
-----------------------------------------------------------------------------
Note how the compile / link command has to refer to R, Rcpp and RInside. All
that is computed for you via the Makefile at compile-time. How that is
done is something you will have to adapt to Netbeans. Once you have it
worked out, feel free to contribute your solution back here. Others have
indicated they may contribute documentation for Eclipse and KDevelop too.
Dirk
--
"Outside of a dog, a book is a man's best friend. Inside of a dog, it is too
dark to read." -- Groucho Marx
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