Function Rf_isUnordered 

unsafe fn Rf_isUnordered(s: SEXP) -> Rboolean

Check if a factor is unordered. Checked wrapper for Rf_isUnordered. Calls Rf_isUnordered_unchecked and routes through with_r_thread. Generated from source location line 3814, column 8. Generated from source file miniextendr-api/src/ffi.rs.