| // Copyright 2017 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| // |
| #![allow(dead_code)] |
| // compile-flags: -O |
| |
| use std::collections::HashSet; |
| |
| #[derive(PartialEq, Debug, Hash, Eq, Clone, PartialOrd, Ord)] |
| enum MyEnum { |
| E0, |
| |
| E1, |
| |
| E2, |
| E3, |
| E4, |
| |
| E5, |
| E6, |
| E7, |
| } |
| |
| |
| fn main() { |
| use MyEnum::*; |
| let s: HashSet<_> = [E4, E1].iter().cloned().collect(); |
| let mut v: Vec<_> = s.into_iter().collect(); |
| v.sort(); |
| |
| assert_eq!([E1, E4], &v[..]); |
| } |
