Enum infinitable::Infinitable

pub enum Infinitable<T> {
    Finite(T),
    Infinity,
    NegativeInfinity,
}

An "infinitable" value, one that can be either finite or infinite

Variants

Finite(T)

A finite value T

Infinity

Positive infinity, which compares greater than all finite values

NegativeInfinity

Negative infinity, which compares less than all finite values

Methods

impl<T> Infinitable<T>

fn is_finite(&self) -> bool

Returns true if the value is Finite.

Examples

use infinitable::Infinitable;

let finite = Infinitable::Finite(5);
assert!(finite.is_finite());

fn finite(self) -> Option<T>

Convert from an Infinitable<T> to an Option<T>.

Converts self into an Option<T> possibly containing a finite value, consuming self.

Examples

use infinitable::Infinitable;

let finite = Infinitable::Finite(5);
assert_eq!(Some(5), finite.finite());
let infinite: Infinitable<i32> = Infinitable::Infinity;
assert_eq!(None, infinite.finite());

Trait Implementations

impl<T: Debug> Debug for Infinitable<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T> PartialEq for Infinitable<T> where
    T: PartialEq, 

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl<T> Eq for Infinitable<T> where
    T: Eq, 

impl<T> PartialOrd for Infinitable<T> where
    T: PartialOrd, 

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl<T> Ord for Infinitable<T> where
    T: Ord, 

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.