28 lines
762 B
Rust
28 lines
762 B
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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trait MatrixShape {}
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struct Col<D, C> {
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data: D,
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col: C,
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}
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trait Collection { fn len(&self) -> usize; }
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impl<T, M: MatrixShape> Collection for Col<M, usize> {
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//~^ ERROR type parameter `T` is not constrained
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fn len(&self) -> usize {
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unimplemented!()
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}
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}
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fn main() {}
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