32 lines
847 B
Rust
32 lines
847 B
Rust
// Copyright 2016 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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use std::fmt;
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trait Foo {
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fn foo(&self) -> (Self, Self);
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//~^ WARNING hard error
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}
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impl<T: Copy> Foo for T {
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fn foo(&self) -> (Self, Self) {
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(*self, *self)
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}
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}
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fn main() {
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assert_eq!((11).foo(), (11, 11));
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let junk: Box<fmt::Debug+Sized> = Box::new(42);
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//~^ WARNING hard error
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let f = format!("{:?}", junk);
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assert_eq!(f, "42");
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}
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