feature: Support C2y _Countof keyword/operator #295
Description
Did you check the tree-sitter docs?
- I have read all the tree-sitter docs if it relates to using the parser
Is your feature request related to a problem? Please describe.
_Countof is introduced in C2y. Both GCC and Clang has already supports it.
https://gcc.gnu.org/onlinedocs/gcc/_005fCountof.html
https://clang.llvm.org/c_status.html
Describe the solution you'd like
support _Countof
Describe alternatives you've considered
none
Additional context
No response