clang, clazy, cppcheck application to use c++11 improvements
Hi, as I can't do pull request, I open a bug to list a few patches I've done applying clang-tidy, clazy and cppcheck. I didn't fix all the existing warnings/errors. I've separated in different patches to not have a too long diff.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information