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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
trait MatrixShape {}
struct Col<D, C> {
data: D,
col: C,
}
trait Collection { fn len(&self) -> usize; }
impl<T, M: MatrixShape> Collection for Col<M, usize> {
//~^ ERROR type parameter `T` is not constrained
fn len(&self) -> usize {
unimplemented!()
}
}
fn main() {}
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