Struct Dual

pub struct Dual<T>(pub T);

A wrapper type that swaps (<= and >=) for PartialOrds, (meet and join) for Lattices, and (top and bottom) for BoundedLattices.

Example

assert!(Dual(2) < Dual(1));

Tuple Fields

0: T

Trait Implementations

impl<T> BoundedLattice for Dual<T>

where T: BoundedLattice,

fn top() -> Dual<T>

fn bottom() -> Dual<T>

impl<T> Clone for Dual<T>

where T: Clone,

fn clone(&self) -> Dual<T>

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for Dual<T>

where T: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> Deref for Dual<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &<Dual<T> as Deref>::Target

Dereferences the value.

impl<T> Display for Dual<T>

where T: Display,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> Hash for Dual<T>

where T: Hash,

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T> Lattice for Dual<T>

where T: Lattice,

fn meet(self, other: Dual<T>) -> Dual<T>

The greatest lower bound of two elements. meet(x, y) is the biggest value z s.t. z <= x and z <= y

fn join(self, other: Dual<T>) -> Dual<T>

The least upper bound of two elements. join(x, y) is the smallest value z s.t. z >= x and z >= y.

fn meet_mut(&mut self, other: Dual<T>) -> bool

ensures self is the join of self and other

fn join_mut(&mut self, other: Dual<T>) -> bool

ensures self is the meet of self and other.

impl<T> Ord for Dual<T>

where T: Ord,

fn cmp(&self, other: &Dual<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T> PartialEq for Dual<T>

where T: PartialEq,

fn eq(&self, other: &Dual<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> PartialOrd for Dual<T>

where T: PartialOrd,

fn partial_cmp(&self, other: &Dual<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> Copy for Dual<T>

where T: Copy,

impl<T> Eq for Dual<T>

where T: Eq,

impl<T> StructuralPartialEq for Dual<T>