74 lines
1.6 KiB
Rust
74 lines
1.6 KiB
Rust
// run-pass
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use std::cmp::Ordering;
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// Test default methods in PartialOrd and PartialEq
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//
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#[derive(Debug)]
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struct Fool(bool);
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impl PartialEq for Fool {
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fn eq(&self, other: &Fool) -> bool {
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let Fool(this) = *self;
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let Fool(other) = *other;
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this != other
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}
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}
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struct Int(isize);
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impl PartialEq for Int {
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fn eq(&self, other: &Int) -> bool {
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let Int(this) = *self;
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let Int(other) = *other;
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this == other
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}
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}
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impl PartialOrd for Int {
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fn partial_cmp(&self, other: &Int) -> Option<Ordering> {
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let Int(this) = *self;
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let Int(other) = *other;
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this.partial_cmp(&other)
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}
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}
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struct RevInt(isize);
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impl PartialEq for RevInt {
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fn eq(&self, other: &RevInt) -> bool {
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let RevInt(this) = *self;
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let RevInt(other) = *other;
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this == other
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}
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}
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impl PartialOrd for RevInt {
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fn partial_cmp(&self, other: &RevInt) -> Option<Ordering> {
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let RevInt(this) = *self;
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let RevInt(other) = *other;
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other.partial_cmp(&this)
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}
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}
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pub fn main() {
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assert!(Int(2) > Int(1));
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assert!(Int(2) >= Int(1));
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assert!(Int(1) >= Int(1));
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assert!(Int(1) < Int(2));
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assert!(Int(1) <= Int(2));
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assert!(Int(1) <= Int(1));
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assert!(RevInt(2) < RevInt(1));
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assert!(RevInt(2) <= RevInt(1));
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assert!(RevInt(1) <= RevInt(1));
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assert!(RevInt(1) > RevInt(2));
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assert!(RevInt(1) >= RevInt(2));
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assert!(RevInt(1) >= RevInt(1));
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assert_eq!(Fool(true), Fool(false));
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assert!(Fool(true) != Fool(true));
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assert!(Fool(false) != Fool(false));
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assert_eq!(Fool(false), Fool(true));
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}
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