46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test that we can overload the `+` operator for points so that two
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// points can be added, and a point can be added to an integer.
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use std::ops;
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#[derive(Debug,PartialEq,Eq)]
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struct Point {
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x: int,
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y: int
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}
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impl ops::Add for Point {
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type Output = Point;
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fn add(self, other: Point) -> Point {
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Point {x: self.x + other.x, y: self.y + other.y}
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}
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}
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impl ops::Add<int> for Point {
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type Output = Point;
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fn add(self, other: int) -> Point {
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Point {x: self.x + other,
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y: self.y + other}
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}
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}
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pub fn main() {
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let mut p = Point {x: 10, y: 20};
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p = p + Point {x: 101, y: 102};
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assert_eq!(p, Point {x: 111, y: 122});
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p = p + 1;
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assert_eq!(p, Point {x: 112, y: 123});
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}
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