I have restarted everything, and now I can already compute GCD using the boost
library, thank you for your help. Just an annoying thing: when I do:
sourceCpp("convolve.cpp")
I get a warning, which I did not get the first time I built my project (without
the boost file).
Warning message:In normalizePath(path.expand(path), winslash, mustWork) :
path[1]="C:/Users/Jordi/Documents/[A_FOLDER]/JungleR/JungleR/src/../inst/include":
The system cannot find the path specified
Do you know what can that be? I will definitely look into the examples in BH
library, thanks for the recommendation.
Date: Wed, 11 Mar 2015 07:21:49 -0500
Subject: Re: [Rcpp-devel] Question about Rcpp and boost
From: deter...@umn.edu
To: jordi_mol...@hotmail.com
CC: rcpp-devel@lists.r-forge.r-project.org
Could you provide the build error you are referring to? You shouldn't need to
change the PKG_CXXFLAGS variable at all. Try restarting your environment and
rebuilding. I just created a package containing your code with the BH package
without error on Windows 7.
On Wed, Mar 11, 2015 at 7:09 AM, Jordi Molins Coronado
<jordi_mol...@hotmail.com> wrote:
Thank you very much for your answer. I have changed the DESCRIPTION file to
include:
LinkingTo: Rcpp, BH
(before: LinkingTo: Rcpp) but it continues giving the same build error.
Date: Wed, 11 Mar 2015 07:05:39 -0500
Subject: Re: [Rcpp-devel] Question about Rcpp and boost
From: deter...@umn.edu
To: jordi_mol...@hotmail.com
CC: rcpp-devel@lists.r-forge.r-project.org
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_mol...@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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Dr. Charles Determan, PhD
Integrated Biosciences
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