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// edition:2018
// check-pass
async fn foo<const N: usize>(arg: [u8; N]) -> usize { arg.len() }
async fn bar<const N: usize>() -> [u8; N] {
[0; N]
}
trait Trait<const N: usize> {
fn fynn(&self) -> usize;
}
impl<const N: usize> Trait<N> for [u8; N] {
fn fynn(&self) -> usize {
N
}
}
async fn baz<const N: usize>() -> impl Trait<N> {
[0; N]
}
async fn biz<const N: usize>(v: impl Trait<N>) -> usize {
v.fynn()
}
async fn user<const N: usize>() {
let _ = foo::<N>(bar().await).await;
let _ = biz(baz::<N>().await).await;
}
fn main() { }
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