Enum Factor

pub enum Factor {
    NegativeOne,
    Zero,
    One,
    Prime(u128, i8),
    OneOverZero,
    ZeroOverZero,
}

A prime factor of a fraction.

Variants

NegativeOne

The negative multiplicative base, -1. Only a factor of negative fractions.

Zero

The additive base, 0. Only a factor if the fraction evaluates to 0.

One

The multiplicative base, 1. Only a factor if the fraction evaluates to 1.

Prime(u128, i8)

A prime number with an exponent. Appears in most fractions.

Tuple Fields

0: u128

The base, which is always prime.

1: i8

The exponent.

OneOverZero

Positive infinity, 1/0. Only a factor if the fraction involves a division by zero.

ZeroOverZero

An undefined value, 0/0. Only a factor if the fraction evaluates to 0/0.

Implementations

impl Factor

pub const fn has_exponent(&self) -> bool

Determines if this factor would be displayed with an exponent or not. For primes, returns false if the exponent is 1 and true otherwise. Always returns false for other variants.

Examples

Basic usage:

assert!(!Factor::NegativeOne.has_exponent());
assert!(Factor::Prime(2, 2).has_exponent());
assert!(!Factor::OneOverZero.has_exponent());

Trait Implementations

impl Clone for Factor

fn clone(&self) -> Factor

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Factor

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

Formats the value using the given formatter.

impl Display for Factor

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

Formats the value using the given formatter.

impl From<Factor> for Fraction

fn from(fac: Factor) -> Self

Converts to this type from the input type.

impl Hash for Factor

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 Ord for Factor

fn cmp(&self, other: &Factor) -> 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 Factor

fn eq(&self, other: &Factor) -> 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 Factor

fn partial_cmp(&self, other: &Factor) -> 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 Product<Factor> for Fraction

fn product<I: Iterator<Item = Factor>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by multiplying the items.

impl Copy for Factor

impl Eq for Factor

impl StructuralPartialEq for Factor