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// build-pass
pub fn works() {
let array/*: [_; _]*/ = default_array();
let _: [_; 4] = array;
Foo::foo(&array);
}
pub fn didnt_work() {
let array/*: [_; _]*/ = default_array();
Foo::foo(&array);
let _: [_; 4] = array;
}
trait Foo {
fn foo(&self) {}
}
impl Foo for [i32; 4] {}
impl Foo for [i64; 8] {}
// Only needed because `[_; _]` is not valid type syntax.
fn default_array<T, const N: usize>() -> [T; N]
where
[T; N]: Default,
{
Default::default()
}
fn main() {
works();
didnt_work();
}
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