mirror of https://github.com/rust-lang/rust
19 lines
325 B
Rust
19 lines
325 B
Rust
#![feature(rustc_attrs)]
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#![feature(trait_alias)]
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#![feature(with_negative_coherence)]
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trait A {}
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trait B {}
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trait AB = A + B;
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impl A for u32 {}
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impl B for u32 {}
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#[rustc_strict_coherence]
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trait C {}
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impl<T: AB> C for T {}
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impl C for u32 {}
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//~^ ERROR conflicting implementations of trait `C` for type `u32`
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fn main() {}
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