Updates to the coding conventions for C++17

Development
1

Hello everyone,

As we recently bump the CXX version from C++11 to C++17, I just updated the coding convention for C++17.

Please take the time to read this document before your next contribution :slightly_smiling_face: if you have any question regarding these conventions you can ping me (@lucas.givord), sankhesh (@sankhesh) or mathieu (@mwestphal) directly on your merge request.

2

Hey I would like to follow the style guidelines. Is there a .clang-format file which we can use to enforce the style automatically?

3

Yes, it is in the repo already. However, keep in mind not everything can be enforced by clang-format.