Function OBJECT_unchecked 

pub unsafe extern "C-unwind" fn OBJECT_unchecked(x: SEXP) -> c_int

Check if SEXP has the “object” bit set (has a class).

Returns non-zero if object has a class attribute. Unchecked FFI binding for OBJECT. Generated from source location line 639, column 12. Generated from source file miniextendr-api/src/sys.rs.