Struct parallel_disk_usage::args::fraction::Fraction

source · [−]

pub struct Fraction(_);

Expand description

Floating-point value that is greater than or equal to 0 and less than 1.

Implementations

impl Fraction

pub fn new(value: f32) -> Result<Self, ConversionError>

Create a Fraction.

Methods from Deref<Target = f32>

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pub const RADIX: u32 = 2u32

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pub const MANTISSA_DIGITS: u32 = 24u32

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pub const DIGITS: u32 = 6u32

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pub const EPSILON: f32 = 1.1920929E-7f32

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pub const MIN: f32 = -3.40282347E+38f32

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pub const MIN_POSITIVE: f32 = 1.17549435E-38f32

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pub const MAX: f32 = 3.40282347E+38f32

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pub const MIN_EXP: i32 = -125i32

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pub const MAX_EXP: i32 = 128i32

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pub const MIN_10_EXP: i32 = -37i32

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pub const MAX_10_EXP: i32 = 38i32

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pub const NAN: f32 = NaNf32

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pub const INFINITY: f32 = +Inff32

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pub const NEG_INFINITY: f32 = -Inff32

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pub fn total_cmp(&self, other: &f32) -> Ordering

Return the ordering between self and other.

Unlike the standard partial comparison between floating point numbers, this comparison always produces an ordering in accordance to the totalOrder predicate as defined in the IEEE 754 (2008 revision) floating point standard. The values are ordered in the following sequence:

negative quiet NaN
negative signaling NaN
negative infinity
negative numbers
negative subnormal numbers
negative zero
positive zero
positive subnormal numbers
positive numbers
positive infinity
positive signaling NaN
positive quiet NaN.

The ordering established by this function does not always agree with the PartialOrd and PartialEq implementations of f32. For example, they consider negative and positive zero equal, while total_cmp doesn’t.

The interpretation of the signaling NaN bit follows the definition in the IEEE 754 standard, which may not match the interpretation by some of the older, non-conformant (e.g. MIPS) hardware implementations.

Example

struct GoodBoy {
    name: String,
    weight: f32,
}

let mut bois = vec![
    GoodBoy { name: "Pucci".to_owned(), weight: 0.1 },
    GoodBoy { name: "Woofer".to_owned(), weight: 99.0 },
    GoodBoy { name: "Yapper".to_owned(), weight: 10.0 },
    GoodBoy { name: "Chonk".to_owned(), weight: f32::INFINITY },
    GoodBoy { name: "Abs. Unit".to_owned(), weight: f32::NAN },
    GoodBoy { name: "Floaty".to_owned(), weight: -5.0 },
];

bois.sort_by(|a, b| a.weight.total_cmp(&b.weight));

Trait Implementations

impl AsRef<f32> for Fraction

fn as_ref(&self) -> &f32

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Fraction

fn clone(&self) -> Fraction

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

impl Debug for Fraction

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

Formats the value using the given formatter. Read more

impl Default for Fraction

fn default() -> Fraction

Returns the “default value” for a type. Read more

impl Deref for Fraction

type Target = f32

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Display for Fraction

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

Formats the value using the given formatter. Read more

impl From<Fraction> for f32

fn from(original: Fraction) -> Self

Converts to this type from the input type.

impl FromStr for Fraction

type Err = FromStrError

The associated error which can be returned from parsing.

fn from_str(text: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more

impl PartialEq<Fraction> for Fraction

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

impl PartialOrd<Fraction> for Fraction

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

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

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

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

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

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

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

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

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

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

impl TryFrom<f32> for Fraction

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: f32) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Fraction

impl StructuralPartialEq for Fraction

Auto Trait Implementations

impl RefUnwindSafe for Fraction

impl Send for Fraction

impl Sync for Fraction

impl Unpin for Fraction

impl UnwindSafe for Fraction

Blanket Implementations

impl<T> Any for Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<X> Pipe for X

fn pipe<Return, Function>(self, f: Function) -> Returnwhere
Function: FnOnce(Self) -> Return,

Apply f to self. Read more

fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Returnwhere
Function: FnOnce(&'a Self) -> Return,

Apply f to &self. Read more

fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Returnwhere
Function: FnOnce(&'a mut Self) -> Return,

Apply f to &mut self. Read more

fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
    Self: AsRef<Param>,
    Param: 'a + ?Sized,
    Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait AsRef<Param>. Read more

fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Returnwhere
    Self: AsMut<Param>,
    Param: 'a + ?Sized,
    Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait AsMut<Param>. Read more

fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
    Self: Deref<Target = Param>,
    Param: 'a + ?Sized,
    Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Deref<Target = Param>. Read more

fn pipe_deref_mut<'a, Param, Return, Function>(
    &'a mut self,
    f: Function
) -> Returnwhere
    Self: DerefMut<Target = Param>,
    Param: 'a + ?Sized,
    Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait [DerefMut<Target = Param>]. Read more

fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
    Self: Borrow<Param>,
    Param: 'a + ?Sized,
    Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Borrow<Param>. Read more

fn pipe_borrow_mut<'a, Param, Return, Function>(
    &'a mut self,
    f: Function
) -> Returnwhere
    Self: BorrowMut<Param>,
    Param: 'a + ?Sized,
    Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait BorrowMut<Param>. Read more

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for Twhere
T: Display + ?Sized,

default fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.