56 lines
1.4 KiB
Rust
56 lines
1.4 KiB
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// no-pretty-expanded FIXME #15189
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#[deriving(PartialEq, Eq, PartialOrd, Ord)]
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enum E<T> {
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E0,
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E1(T),
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E2(T,T)
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}
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pub fn main() {
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let e0 = E0;
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let e11 = E1(1i);
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let e12 = E1(2i);
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let e21 = E2(1i, 1i);
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let e22 = E2(1i, 2i);
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// in order for both PartialOrd and Ord
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let es = [e0, e11, e12, e21, e22];
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for (i, e1) in es.iter().enumerate() {
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for (j, e2) in es.iter().enumerate() {
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let ord = i.cmp(&j);
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let eq = i == j;
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let lt = i < j;
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let le = i <= j;
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let gt = i > j;
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let ge = i >= j;
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// PartialEq
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assert_eq!(*e1 == *e2, eq);
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assert_eq!(*e1 != *e2, !eq);
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// PartialOrd
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assert_eq!(*e1 < *e2, lt);
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assert_eq!(*e1 > *e2, gt);
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assert_eq!(*e1 <= *e2, le);
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assert_eq!(*e1 >= *e2, ge);
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// Ord
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assert_eq!(e1.cmp(e2), ord);
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}
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}
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}
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