33 lines
827 B
Rust
33 lines
827 B
Rust
// Copyright 2018 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 Unsigned {
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const MAX: u8;
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}
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struct U8(u8);
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impl Unsigned for U8 {
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const MAX: u8 = 0xff;
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}
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struct Sum<A,B>(A,B);
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impl<A: Unsigned, B: Unsigned> Unsigned for Sum<A,B> {
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const MAX: u8 = A::MAX + B::MAX;
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}
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fn foo<T>(_: T) -> &'static u8 {
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&Sum::<U8,U8>::MAX //~ ERROR erroneous constant used
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//~| ERROR E0080
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}
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fn main() {
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foo(0);
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}
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