Comment by xvilka

The feature isn't working well yet on C and C++. If I recall correctly it's based on Tree-Sitter[1] parsing, and there are still too many bugs in corresponding grammars - tree-sitter-c[2] and tree-sitter-cpp[3]. Hopefully, it will be greatly improved in the future as the share of the existing and newly written code in C and C++ is quite significant.

[1] https://tree-sitter.github.io/tree-sitter/

[2] https://github.com/tree-sitter/tree-sitter-c/issues

[3] https://github.com/tree-sitter/tree-sitter-cpp/issues