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// run-pass
// Test that we can overload the `+` operator for points so that two
// points can be added, and a point can be added to an integer.
use std::ops;
#[derive(Debug,PartialEq,Eq)]
struct Point {
x: isize,
y: isize
}
impl ops::Add for Point {
type Output = Point;
fn add(self, other: Point) -> Point {
Point {x: self.x + other.x, y: self.y + other.y}
}
}
impl ops::Add<isize> for Point {
type Output = Point;
fn add(self, other: isize) -> Point {
Point {x: self.x + other,
y: self.y + other}
}
}
pub fn main() {
let mut p = Point {x: 10, y: 20};
p = p + Point {x: 101, y: 102};
assert_eq!(p, Point {x: 111, y: 122});
p = p + 1;
assert_eq!(p, Point {x: 112, y: 123});
}
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