There is nothing wrong with either practice. The GP is just stating their preferred style. In fact it is good practice to use struct wrappers for void* pointer

There is nothing wrong with either practice. The GP is just stating their preferred style. In fact it is good practice to use struct wrappers for void* pointers to get type safety. On the other hand, a typedef is just for programmer convenience and the compiler doesn't care. Eg: See DECLARE_HANDLE defined under STRICT at https://renenyffenegger.ch/notes/Windows/development/WinAPI/data-types/index https://renenyffenegger.ch/notes/Windows/development/WinAPI/...