On 28/11/2024 12:18, Aaron Peter Bachmann via Gcc wrote:
Two suggestions for GCC beginners projects
I watched some of the 2024 Gnu Cauldron videos. The question of what
could be a suitable project for a beginner came up. I have two suggestions:
1. Add a warning when users use reserved or potentially reserved
identifiers in their code. This could cover C and posit-identifiers. I
think clang has that already. It is exceptionally simple, but some
guidance might help here anyway. E. g. would it be acceptable to produce
the classification function with [f]lex?
One thing to aim for here is to try to be consistent with clang - if you
add a warning that is very similar to a warning in clang, use the same
flag name.
It could also be worth adding options to the flag to support
cross-language checks - in particular, it is often useful to avoid C++
reserved identifiers in C header code.
