New Rust

Macro/macrotest.rs

@@ -0,0 +1,10 @@
+macro_rules! double_and_add_one {
+    ($x : expr) => {
+        $x * 2 + 1;
+    };
+}
+
+fn main(){
+    let result = double_and_add_one!(5);
+    println!("Result: {}", result); // This will print "Result: 11"
+}