tuple structs

rectangles/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rectangles"
+version = "0.1.0"

rectangles/Cargo.toml

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+[package]
+name = "rectangles"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

rectangles/src/main.rs

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+fn main() {
+    let rect1 = (30, 50);
+
+    println!(
+        "The area of a rectangle is {} square pixels",
+        area(rect1)
+    );
+}
+
+fn area(dimensions: (u32, u32)) -> u32 {
+    dimensions.0 * dimensions.1
+}