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//@ run-pass
#![allow(stable_features)]
// A very basic test of const fn functionality.
#![feature(const_indexing)]
const fn add(x: u32, y: u32) -> u32 {
x + y
}
const fn sub(x: u32, y: u32) -> u32 {
x - y
}
const unsafe fn div(x: u32, y: u32) -> u32 {
x / y
}
const fn generic<T>(t: T) -> T {
t
}
const fn generic_arr<T: Copy>(t: [T; 1]) -> T {
t[0]
}
const SUM: u32 = add(44, 22);
const DIFF: u32 = sub(44, 22);
const DIV: u32 = unsafe{div(44, 22)};
fn main() {
assert_eq!(SUM, 66);
assert!(SUM != 88);
assert_eq!(DIFF, 22);
assert_eq!(DIV, 2);
let _: [&'static str; sub(100, 99) as usize] = ["hi"];
let _: [&'static str; generic(1)] = ["hi"];
let _: [&'static str; generic_arr([1])] = ["hi"];
}
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