Adding/switching to C++14/C++17 on 1.4rc1

[Madhavan Mukund]

I'm running 1.4.rc1 using a virtual environment.

By default, g++ is installed with C++11 support, compiler flag -std=gnu++11. I'd like to add/replace this with C++14/C++17 support, compiler flags -std=gnu++14/-std=gnu++17.

Under cms/build/lib/cms/grading/languages, I tried copying cpp11_gpp.py as cpp14_gpp.py and cpp17_gpp.py, editing the files approprirate, and then rerunning "python3 setup.py install". However, I don't see any change in the set of "Allowed programming languages".

(a) What should I do to enable C++14/C++17?

(b) Is it possible to have multiple C++ compilers simultaneously configured/enabled in a contest?

--Madhavan

[William Di Luigi]

Hi Madhavan,

(a) Check out this two commits for enabling C++14: https://github.com/cms-dev/cms/commit/4b1cb3fb578beef2b487204be233748cad97d087 and https://github.com/cms-dev/cms/commit/7ac40f64420f0fb579cbe9ba4e5d0cd9054b03d2

(a) Check out this one commit for enabling C++17: https://github.com/cms-dev/cms/commit/62623291cddedd263a184217eca861b173f977b0

(b) Yes, as far as I remember, C++11 / 14 / 17 are seen as completely different languages by CMS.

Best,

William

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[Madhavan Mukund]

Thanks, I was able to patch 1.4rc1 with these updates and get both C++14 and C++17 working. (Didn't migrate to latest dev version of cms because I did not want to upgrade the existing large database of problems.)

Regards,
Madhavan