added typecasts for int and float

src/stl.rs

@@ -228,6 +228,28 @@ pub fn static_stdlib(syms: &mut SymTable) -> Result<(), String> {
         },
     );
 
+    syms.insert(
+        "int".to_string(),
+        Symbol {
+            name: String::from("int"),
+            args: Args::Lazy(1),
+            conditional_branches: false,
+            docs: math::INTCAST_DOCSTRING.to_string(),
+            value: ValueType::Internal(Rc::new(math::intcast_callback)),
+        },
+    );
+
+    syms.insert(
+        "float".to_string(),
+        Symbol {
+            name: String::from("float"),
+            args: Args::Lazy(1),
+            conditional_branches: false,
+            docs: math::FLOATCAST_DOCSTRING.to_string(),
+            value: ValueType::Internal(Rc::new(math::floatcast_callback)),
+        },
+    );
+
     Ok(())
 }