[Rcpp-devel] Rcpp11 being checked by Travis CI with minimal example

Kevin Ushey kevinushey at gmail.com
Wed Mar 16 19:31:08 CET 2016

It sounds like you just need to declare that your package depends on
C++11 in the standard way:

- Add 'SystemRequirements: C++11' to your DESCRIPTION file,
- Create files at 'src/Makevars[.win]', and make sure you have CXX_STD = CXX11

This is documented in more detail in R-exts: see


On Wed, Mar 16, 2016 at 11:25 AM, Richel Bilderbeek
<richel at richelbilderbeek.nl> wrote:
> I am working on a minimal example of using Rcpp11 and Travis CI, which I
> keep at this GiHub:
> https://github.com/richelbilderbeek/travis_qmake_gcc_cpp11_rcpp . It has one
> function that is labeled 'noexcept', thus C++11.
> I can compile and run the C++11 code from a Qt Creator project file (called
> 'domagic.pro'),
> I can successfully create the 'domagic' package that uses an R function to
> call the C++11 function.
> Because Travis CI does not automate multiple languages yet, I want it to
> check the R package automatically. I got this working for C++98 (at this
> GitHub: https://github.com/richelbilderbeek/travis_qmake_gcc_cpp98_rcpp ).
> For C++11 there is one extra step: one has to run the following line in
> RStudio (a tip from Dirk Edelbuettel):
> Sys.setenv("PKG_CXXFLAGS"="-std=c++11")
> When I then run 'devtools::check()' on the package, everything works without
> notes/warnings/errors.
> But how to let Travis CI do the same? I tried to add it to the .travis.yml,
> but this was more guessing than first reading how to do so. Also adding
> 'Rcpp11' to the package DESCRIPTION, adding [[Rcpp11::export]] or [[export]]
> to the C++11 function documentation are ideas that I have tried in multiple
> random ways.
> Can it be done? Are there suggestions?
> Thanks in advance, Richel Bilderbeek
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