Struct Kleene 

pub struct Kleene { /* private fields */ }

A struct representing a Kleene logic value, which can be one of three states: True (T), False (F), or Unknown (U).

Implementations

impl Kleene

pub const FALSE: Self

Constant representing the False value in Kleene logic.

pub const UNKNOWN: Self

Constant representing the Unknown value in Kleene logic.

pub const TRUE: Self

Constant representing the True value in Kleene logic.

pub const fn new(t: Trit) -> Self

Creates a new Kleene value from a Trit.

pub const fn trit(&self) -> Trit

Returns the underlying Trit value.

pub const fn is_true(self) -> bool

Returns true if the Kleene value is True.

pub const fn is_false(self) -> bool

Returns true if the Kleene value is False.

pub const fn is_unknown(self) -> bool

Returns true if the Kleene value is Unknown.

pub const fn and(self, other: Self) -> Self

Returns the Kleene AND of two Kleene values.

pub const fn or(self, other: Self) -> Self

Returns the Kleene OR of two Kleene values.

pub fn implies(self, other: Self) -> Self

Kleene implication: ¬a ∨ b (material implication, Kleene semantics).

pub fn iff(self, other: Self) -> Self

Kleene biconditional (equivalence): (a → b) ∧ (b → a).

Trait Implementations

impl Clone for Kleene

fn clone(&self) -> Kleene

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Kleene

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

Formats the value using the given formatter.

impl Hash for Kleene

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

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 Not for Kleene

type Output = Kleene

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl Ord for Kleene

fn cmp(&self, other: &Kleene) -> 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 PartialEq for Kleene

fn eq(&self, other: &Kleene) -> 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 PartialOrd for Kleene

fn partial_cmp(&self, other: &Kleene) -> 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 Copy for Kleene

impl Eq for Kleene

impl StructuralPartialEq for Kleene