[Rcpp-devel] Question about Rcpp and boost
I think you want to check your DESCRIPTION file. I believe you need to have the 'LinkingTo:' option to also include BH. Regards, Charles On Wed, Mar 11, 2015 at 6:58 AM, Jordi Molins Coronado <
jordi_molins at hotmail.com> wrote:
Hello,
I know this question has been answered before (and I have searched for
it), but I cannot figure out a solution:
I want to use boost with Rcpp, basically to be able to use numbers with a
higher precision than a double. I am comfortable using the inline package
for small c++ functions, I have never used Rccp per se. I have created a
skeleton with convolve, and it works. I have added a new function:
// We can now use the BH package
// [[Rcpp::depends(BH)]]
#include <Rcpp.h>
#include <boost/math/common_factor.hpp>
using namespace Rcpp;
// [[Rcpp::export]]
int computeGCD(int a, int b) {
return boost::math::gcd(a, b);
}
and when I try to compile, it fails (basically, the compiler does not find
where boost is). I have then run in R:
Sys.setenv("PKG_CXXFLAGS"="-I C:/Program~Files/boost/boost_1_57_0/")
which allows me to go a bit more into the build, but the compile fails
when reaching the #include <boost/math/common_factor.hpp> above, since
it does not know where boost is (boost is at C:/Program~Files/boost/boost_1_57_0/
I have not compiled it, but just extracted with 7-zip and copied and pasted
the corresponding files into this subfolder).
From reading the attribute document of Dirk Eddelbuettel, it seems as if
adding the comments // [[Rcpp::export]] and // [[Rcpp::depends(BH)]]
would do the job. But for me, it does not work. What do I need to do?
Thanks and sorry for the basic question, I have tried to read everything I
could before asking this list.
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