18 lines
371 B
Rust
18 lines
371 B
Rust
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type point = {x: int, y: int};
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impl add_point for point {
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fn op_add(other: point) -> point {
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{x: self.x + other.x, y: self.y + other.y}
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}
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fn op_neg() -> point {
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{x: -self.x, y: -self.y}
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}
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}
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fn main() {
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let p = {x: 10, y: 20};
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p += {x: 1, y: 2};
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assert p + {x: 5, y: 5} == {x: 16, y: 27};
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assert -p == {x: -11, y: -22};
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}
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