1 // Tests that array sizes that depend on const-params are checked using `ConstEvaluatable`.
4 #![cfg_attr(full, feature(const_generics))]
5 #![cfg_attr(full, allow(incomplete_features))]
6 #![cfg_attr(min, feature(min_const_generics))]
9 struct ArithArrayLen<const N: usize>([u32; 0 + N]);
10 //[full]~^ ERROR constant expression depends on a generic parameter
11 //[min]~^^ ERROR generic parameters may not be used in const operations
13 #[derive(PartialEq, Eq)]
18 struct B<const CFG: Config> {
19 //[min]~^ ERROR `Config` is forbidden
20 arr: [u8; CFG.arr_size],
21 //[full]~^ ERROR constant expression depends on a generic parameter
22 //[min]~^^ ERROR generic parameters may not be used in const operations
25 const C: Config = Config { arr_size: 5 };
28 let b = B::<C> { arr: [1, 2, 3, 4, 5] };
29 assert_eq!(b.arr.len(), 5);