37 lines
767 B
Rust
37 lines
767 B
Rust
// run-pass
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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: isize,
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y: isize
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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<isize> for Point {
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type Output = Point;
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fn add(self, other: isize) -> 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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