chore: reorg

__std/ops/Cargo.lock

@@ -0,0 +1,6 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "ops-test"
+version = "0.1.0"
+

__std/ops/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "ops-test"
+version = "0.1.0"
+authors = ["Hatter Jiang <jht5945@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

__std/ops/src/main.rs

@@ -0,0 +1,64 @@
+#[derive(Debug, Clone)]
+struct Point {
+    x: i32,
+    y: i32,
+}
+
+impl std::ops::Add<Point> for Point {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self {
+        Point {
+            x: self.x + rhs.x,
+            y: self.y + rhs.y,
+        }
+    }
+}
+
+impl std::ops::Sub<Point> for Point {
+    type Output = Self;
+
+    fn sub(self, rhs: Self) -> Self {
+        Point {
+            x: self.x - rhs.x,
+            y: self.y - rhs.y,
+        }
+    }
+}
+
+impl std::ops::Mul<Point> for Point {
+    type Output = Self;
+
+    fn mul(self, rhs: Self) -> Self {
+        Point {
+            x: self.x * rhs.x,
+            y: self.y * rhs.y,
+        }
+    }
+}
+
+impl std::ops::Div<Point> for Point {
+    type Output = Self;
+
+    fn div(self, rhs: Self) -> Self {
+        Point {
+            x: self.x / rhs.x,
+            y: self.y / rhs.y,
+        }
+    }
+}
+
+fn main() {
+    let a = Point { x: 2, y: 3, };
+    let b = Point { x: 4, y: 5, };
+    let c = a.clone() + b.clone();
+    let d = a.clone() - b.clone();
+    let e = a.clone() * b.clone();
+    let f = a.clone() / b.clone();
+    println!("{:?}", a);
+    println!("{:?}", b);
+    println!("{:?}", c);
+    println!("{:?}", d);
+    println!("{:?}", e);
+    println!("{:?}", f);
+}