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#![feature(generic_const_exprs)]
#![allow(incomplete_features)]
pub struct ConstCheck<const CHECK: bool>;
pub trait True {}
impl True for ConstCheck<true> {}
pub trait OrdesDec {
type Newlen;
type Output;
fn pop(self) -> (Self::Newlen, Self::Output);
}
impl<T, const N: usize> OrdesDec for [T; N]
where
ConstCheck<{N > 1}>: True,
[T; N - 1]: Sized,
{
type Newlen = [T; N - 1];
type Output = T;
fn pop(self) -> (Self::Newlen, Self::Output) {
let mut iter = IntoIter::new(self);
//~^ ERROR: failed to resolve: use of undeclared type `IntoIter`
let end = iter.next_back().unwrap();
let new = [(); N - 1].map(move |()| iter.next().unwrap());
(new, end)
}
}
fn main() {}
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