Struct num_decimal::Num32

pub struct Num32(_);

A fixed size number type with some improvements and customizations over Rational32.

Please note that this type is meant to be used mostly in scenarios where memory boundedness is of paramount importance. Importantly, it does not constitute a fully blown replacement for Num, as the provided functionality is much more limited (and likely will never catch up completely).

Implementations

impl Num32

pub fn new<T, U>(numer: T, denom: U) -> Self where
    i32: From<T>,
    i32: From<U>, 

Construct a rational number from its two components.

impl Num32

pub fn approximate(num: Num) -> Self

Approximate a Num with a Num32.

This constructor provides a potentially lossy way of creating a Num32 that approximates the provided Num.

If you want to make sure that no precision is lost (and fail if this constraint cannot be upheld), then usage of Num32::try_from is advised.

Trait Implementations

impl Clone for Num32

fn clone(&self) -> Num32

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Num32

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

Formats the value using the given formatter.

impl Default for Num32

fn default() -> Self

Returns the “default value” for a type.

impl From<Num32> for Num

fn from(other: Num32) -> Num

Performs the conversion.

impl From<Num32> for (i32, i32)

fn from(other: Num32) -> Self

Performs the conversion.

impl<T> From<T> for Num32 where
    i32: From<T>, 

fn from(val: T) -> Self

Performs the conversion.

impl Hash for Num32

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, 

Feeds a slice of this type into the given Hasher.

impl Ord for Num32

fn cmp(&self, other: &Num32) -> 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.

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

Restrict a value to a certain interval.

impl PartialEq<Num32> for Num32

fn eq(&self, other: &Num32) -> bool

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

fn ne(&self, other: &Num32) -> bool

This method tests for !=.

impl PartialOrd<Num32> for Num32

fn partial_cmp(&self, other: &Num32) -> 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 TryFrom<&'_ Num> for Num32

type Error = ()

The type returned in the event of a conversion error.

fn try_from(other: &Num) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Num> for Num32

type Error = ()

The type returned in the event of a conversion error.

fn try_from(other: Num) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Num32

impl Eq for Num32

impl StructuralEq for Num32

impl StructuralPartialEq for Num32