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//@ run-pass
#![feature(generic_const_exprs)]
#![allow(incomplete_features)]
struct Generic<const K: u64>;
struct ConstU64<const K: u64>;
impl<const K: u64> Generic<K>
where
ConstU64<{ K - 1 }>: ,
{
fn foo(self) -> u64 {
K
}
}
impl<const K: u64> Generic<K>
where
ConstU64<{ K - 1 }>: ,
ConstU64<{ K + 1 }>: ,
ConstU64<{ K + 1 - 1 }>: ,
{
fn bar(self) -> u64 {
let x: Generic<{ K + 1 }> = Generic;
x.foo()
}
}
fn main() {
assert_eq!((Generic::<10>).bar(), 11);
}
// Test that the ``ConstU64<{ K + 1 - 1}>`` bound on ``bar``'s impl block satisfies the
// ``ConstU64<{K - 1}>`` bound on ``foo``'s impl block
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