Merge branch 'dashu' of https://github.com/coasys/scryer-prolog into coasys-dashu

src/machine/loader.rs

@@ -1649,7 +1649,7 @@ impl Machine {
             .store(self.machine_st.deref(self.machine_st.registers[3]));
 
         let arity = match Number::try_from(arity) {
-            Ok(Number::Integer(n)) if &*n >= &0 && &*n <= &MAX_ARITY => Ok(n.to_usize().unwrap()),
+            Ok(Number::Integer(n)) if &*n >= &Integer::from(0) && &*n <= &Integer::from(MAX_ARITY) => Ok(n.to_usize().unwrap()),
             Ok(Number::Fixnum(n)) if n.get_num() >= 0 && n.get_num() <= MAX_ARITY as i64 => {
                 Ok(usize::try_from(n.get_num()).unwrap())
             }