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src/test/ui/const-generics
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+ // run-pass
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#![ feature( const_generics) ]
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//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
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use std:: fmt:: Debug ;
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#[ derive( Debug ) ]
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- struct S < T : Debug , const N : usize > ( [ T ; N ] ) ; //~ ERROR `[T; _]` doesn't implement `std::fmt::Debug`
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+ struct S < T : Debug , const N : usize > ( [ T ; N ] ) ;
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fn main ( ) { }
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warning: the feature `const_generics` is incomplete and may cause the compiler to crash
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- --> $DIR/broken-mir-2.rs:1 :12
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+ --> $DIR/broken-mir-2.rs:3 :12
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|
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LL | #![feature(const_generics)]
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| ^^^^^^^^^^^^^^
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- error[E0277]: `[T; _]` doesn't implement `std::fmt::Debug`
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- --> $DIR/broken-mir-2.rs:7:36
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- |
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- LL | struct S<T: Debug, const N: usize>([T; N]);
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- | ^^^^^^ `[T; _]` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
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- |
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- = help: the trait `std::fmt::Debug` is not implemented for `[T; _]`
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- = note: required because of the requirements on the impl of `std::fmt::Debug` for `&[T; _]`
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- = note: required for the cast to the object type `dyn std::fmt::Debug`
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-
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- error: aborting due to previous error
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- For more information about this error, try `rustc --explain E0277`.
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