mirror of https://github.com/rust-lang/rust.git
23 lines
580 B
Rust
23 lines
580 B
Rust
//@ known-bug: #123141
|
|
trait ConstChunksExactTrait<T> {
|
|
fn const_chunks_exact<const N: usize>(&self) -> ConstChunksExact<'_, T, { N }>;
|
|
}
|
|
|
|
impl<T> ConstChunksExactTrait<T> for [T] {}
|
|
|
|
struct ConstChunksExact<'a, T: 'a, const N: usize> {}
|
|
|
|
impl<'a, T, const N: usize> Iterator for ConstChunksExact<'a, T, { rem }> {
|
|
type Item = &'a [T; N];
|
|
}
|
|
|
|
fn main() {
|
|
let slice = &[1i32, 2, 3, 4, 5, 6, 7, 7, 9, 1i32];
|
|
|
|
let mut iter = [[1, 2, 3], [4, 5, 6], [7, 8, 9]].iter();
|
|
|
|
for a in slice.const_chunks_exact::<3>() {
|
|
assert_eq!(a, iter.next().unwrap());
|
|
}
|
|
}
|