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https://github.com/rust-lang/rust
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27 lines
626 B
Rust
27 lines
626 B
Rust
//@ run-pass
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#![allow(dead_code)]
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pub fn main() {
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let _id: &Mat2<f64> = &Matrix::identity(1.0);
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}
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pub trait Index<Index,Result> { fn get(&self, _: Index) -> Result { panic!() } }
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pub trait Dimensional<T>: Index<usize, T> { }
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pub struct Mat2<T> { x: T }
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pub struct Vec2<T> { x: T }
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impl<T> Dimensional<Vec2<T>> for Mat2<T> { }
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impl<T> Index<usize, Vec2<T>> for Mat2<T> { }
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impl<T> Dimensional<T> for Vec2<T> { }
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impl<T> Index<usize, T> for Vec2<T> { }
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pub trait Matrix<T,V>: Dimensional<V> {
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fn identity(t:T) -> Self;
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}
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impl<T> Matrix<T, Vec2<T>> for Mat2<T> {
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fn identity(t:T) -> Mat2<T> { Mat2{ x: t } }
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}
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