2 #![allow(stable_features)]
4 // A very basic test of const fn functionality.
6 #![feature(const_indexing)]
7 #![feature(const_fn_trait_bound)]
9 const fn add(x: u32, y: u32) -> u32 {
13 const fn sub(x: u32, y: u32) -> u32 {
17 const unsafe fn div(x: u32, y: u32) -> u32 {
21 const fn generic<T>(t: T) -> T {
25 const fn generic_arr<T: Copy>(t: [T; 1]) -> T {
29 const SUM: u32 = add(44, 22);
30 const DIFF: u32 = sub(44, 22);
31 const DIV: u32 = unsafe{div(44, 22)};
40 let _: [&'static str; sub(100, 99) as usize] = ["hi"];
41 let _: [&'static str; generic(1)] = ["hi"];
42 let _: [&'static str; generic_arr([1])] = ["hi"];