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//@ run-pass
#![feature(generic_const_exprs)]
#![allow(incomplete_features)]
fn zero_init<const N: usize>() -> Substs1<N>
where
[u8; N + 1]: ,
{
Substs1([0; N + 1])
}
struct Substs1<const N: usize>([u8; N + 1])
where
[(); N + 1]: ;
fn substs2<const M: usize>() -> Substs1<{ M * 2 }>
where
[(); { M * 2 } + 1]: ,
{
zero_init::<{ M * 2 }>()
}
fn substs3<const L: usize>() -> Substs1<{ (L - 1) * 2 }>
where
[(); (L - 1) * 2 + 1]: ,
{
substs2::<{ L - 1 }>()
}
fn main() {
assert_eq!(substs3::<2>().0, [0; 3]);
}
// Test that the ``{ (L - 1) * 2 + 1 }`` bound on ``substs3`` satisfies the
// ``{ N + 1 }`` bound on ``Substs1``
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