[climb_stealth]

There are linters that raise an error when there is a fallthrough without an explicit comment [0]. I feel like that should be a must for working with C code.

[0] I don't remember which one it actually was. Possibly something commercial for MISRA compliance.

[cjfd]

Actually in C++ there is a fallthrough attribute in the language nowadays. https://en.cppreference.com/w/cpp/language/attributes/fallth...