1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
extern crate serde; #[macro_use] extern crate serde_derive; use std::cmp::Ordering; #[derive(Clone, Copy, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)] pub struct Invert<T: Ord>(T); impl<T: Ord> PartialOrd for Invert<T> { fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(other.0.cmp(&self.0)) } } impl<T: Ord> Ord for Invert<T> { fn cmp(&self, other: &Self) -> Ordering { other.0.cmp(&self.0) } } impl<T: Ord> Invert<T> { pub fn new(t: T) -> Self { Invert(t) } pub fn inner(&self) -> &T { &self.0 } pub fn into_inner(self) -> T { self.0 } } pub fn invert<T: Ord>(t: T) -> Invert<T> { Invert::new(t) } #[derive(Clone, Copy, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)] pub struct PartialInvert<T: PartialOrd>(T); impl<T: PartialOrd> PartialOrd for PartialInvert<T> { fn partial_cmp(&self, other: &Self) -> Option<Ordering> { other.0.partial_cmp(&self.0) } } impl<T: PartialOrd> PartialInvert<T> { pub fn new(t: T) -> Self { PartialInvert(t) } pub fn inner(&self) -> &T { &self.0 } pub fn into_inner(self) -> T { self.0 } } pub fn partial_invert<T: PartialOrd>(t: T) -> PartialInvert<T> { PartialInvert::new(t) }