Are there any publicly-viewable C codebases that make use of pre-C23 auto? When I learned C (2003-ish) auto vs. register was at best a footnote that came up whe

Are there any publicly-viewable C codebases that make use of pre-C23 auto? When I learned C (2003-ish) auto vs. register was at best a footnote that came up when discussing static. I agree that you don't need auto pointers in C the way you do in C++. C++ type names can get so cumbersome...much easier to let the compiler figure it out for you.