Hi !
Great thanks !
In the mean time, what do you suggest I can do if I want to work with Rcpp ? Or
can something be done to the Makevars or is this problem running deeper ?
Have a good day !
Guillaume
> Le 2 nov. 2015 à 13:58, Kevin Ushey <kevinus...@gmail.com> a écrit :
>
> Hi Guillaume,
>
> Compiling with the Makevars you provided, I see a number of warnings
> related to sign conversion and loss of integer precision (due to the
> use of `-Wconversion` in the Makevars).
>
> I'll add an issue on the GitHub issue tracker just so we don't lose sight of
> it.
>
> Thanks,
> Kevin
>
> On Mon, Nov 2, 2015 at 10:48 AM, Guillaume Blanchet
> <gblanchet.l...@gmail.com> wrote:
>> Hi !
>>
>> I apologie in advance if this question has already been answered but I have
>> yet to find a solution to my problem.
>>
>> I recently started to learn Rcpp using the book « Seamless R and C++
>> Integration with Rcpp » by Dirk Eddelbuettel.
>>
>> Using the Fibonacci C code from the book, I tried to reproduce the example
>> to get a feeling of how to work with Rcpp. More precisely, I wrote the
>> following C code in a file that I called « fibonacci.cpp ».
>>
>> #include <Rcpp.h>
>> using namespace Rcpp;
>>
>> //[[Rcpp::export]]
>> int fibonacci(const int x) {
>> if(x < 2){
>> return(x);
>> }else{
>> return fibonacci(x-1)+fibonacci(x-2);
>> }
>> }
>>
>> Following, I called this file using the following command line:
>>
>> sourceCpp("fibonacci.cpp")
>>
>> What I get in return is a series of 80 warnings. Although, these warning may
>> be helpful to answer this question, to keep this message concise I will not
>> attached them here. However, if you feel they maybe helpful, let me know and
>> I will send them along.
>>
>> Note that I am currently working on a Macbook Pro with the new OS (El
>> Capitan). Following the advice given on the CRAN, I organized the Makevar
>> file using clang as follow:
>>
>> CC=clang
>> CXX=clang++
>> CFLAGS=-mtune=native -g -O2 -Wall -pedantic -Wconversion
>> CXXFLAGS=-mtune=native -g -O2 -Wall -pedantic -Wconversion
>> FLIBS=-lgfortran
>>
>> Any reasons, why I get so many warnings ?
>>
>> Thanks in advance for your answer !
>>
>> Have a good day !
>>
>> Guillaume
>>
>>
>>
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