rust/tests/ui/const-generics/generic_const_exprs/simple_fail.rs

#![feature(generic_const_exprs)]
#![allow(incomplete_features)]

type Arr<const N: usize> = [u8; N - 1];
//~^ ERROR overflow

fn test<const N: usize>() -> Arr<N>
where
    [u8; N - 1]: Sized,
    //~^ ERROR overflow
{
    todo!()
}

fn main() {
    test::<0>();
}
`feature(const_generics)` -> `feature(const_param_types)` 2021-08-27 18:04:57 +02:00			`#![feature(generic_const_exprs)]`
implement `const_evaluatable_checked` feature MVP 2020-09-10 08:52:02 +02:00			`#![allow(incomplete_features)]`

const eval errors: display the current item instance if there are generics involved 2021-05-27 22:42:07 +02:00			`type Arr<const N: usize> = [u8; N - 1];`
Use the informative error as the main const eval error message 2025-05-28 10:29:08 +00:00			`//~^ ERROR overflow`
implement `const_evaluatable_checked` feature MVP 2020-09-10 08:52:02 +02:00
feat: omit suffixes in const generics (e.g. `1_i32`) Closes #99255 2022-07-19 02:25:14 +03:00			`fn test<const N: usize>() -> Arr<N>`
			`where`
			`[u8; N - 1]: Sized,`
Use the informative error as the main const eval error message 2025-05-28 10:29:08 +00:00			`//~^ ERROR overflow`
feat: omit suffixes in const generics (e.g. `1_i32`) Closes #99255 2022-07-19 02:25:14 +03:00			`{`
implement `const_evaluatable_checked` feature MVP 2020-09-10 08:52:02 +02:00			`todo!()`
			`}`

			`fn main() {`
			`test::<0>();`
			`}`