Struct sp_runtime :: Rational128 Copy item path

impl Rational128

pub fn zero() -> Rational128

Zero.

pub fn one() -> Rational128

One

pub fn is_zero(&self) -> bool

If it is zero or not

pub fn from(n: u128, d: u128) -> Rational128

Build from a raw n/d.

pub fn from_unchecked(n: u128, d: u128) -> Rational128

Build from a raw n/d. This could lead to / 0 if not properly handled.

pub fn n(&self) -> u128

Return the numerator.

pub fn d(&self) -> u128

Return the denominator.

pub fn to_den(self, den: u128) -> Option<Rational128>

Convert self to a similar rational number where denominator is the given den. This only returns if the result is accurate. None is returned if the result cannot be accurately calculated.

pub fn lcm(&self, other: &Rational128) -> Option<u128>

Get the least common divisor of self and other.

This only returns if the result is accurate. None is returned if the result cannot be accurately calculated.

pub fn lazy_saturating_add(self, other: Rational128) -> Rational128

A saturating add that assumes self and other have the same denominator.

pub fn lazy_saturating_sub(self, other: Rational128) -> Rational128

A saturating subtraction that assumes self and other have the same denominator.

pub fn checked_add( self, other: Rational128, ) -> Result<Rational128, &'static str>

Addition. Simply tries to unify the denominators and add the numerators.

Overflow might happen during any of the steps. Error is returned in such cases.

pub fn checked_sub( self, other: Rational128, ) -> Result<Rational128, &'static str>

Subtraction. Simply tries to unify the denominators and subtract the numerators.

Overflow might happen during any of the steps. None is returned in such cases.

Trait Implementations§

impl Bounded for Rational128

fn min_value() -> Rational128

Returns the smallest finite number this type can represent

fn max_value() -> Rational128

Returns the largest finite number this type can represent

impl Clone for Rational128

fn clone(&self) -> Rational128

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 Rational128

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

Formats the value using the given formatter. Read more

impl Default for Rational128

fn default() -> Rational128

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

impl<T> From<T> for Rational128
where T: Into<u128>,

fn from(t: T) -> Rational128

Converts to this type from the input type.

impl Ord for Rational128

fn cmp(&self, other: &Rational128) -> Ordering

This method returns an Ordering between self and other. Read more

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

Compares and returns the maximum of two values. Read more

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

Compares and returns the minimum of two values. Read more

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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more

impl PartialEq for Rational128

fn eq(&self, other: &Rational128) -> bool

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

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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.

impl PartialOrd for Rational128

fn partial_cmp(&self, other: &Rational128) -> 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 Copy for Rational128

impl Eq for Rational128

Auto Trait Implementations§

impl UnwindSafe for Rational128

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

fn checked_into<T>(self) -> Option<T>
where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Clear for T
where T: Default + Eq + PartialEq,

fn is_clear(&self) -> bool

True iff no bits are set.

fn clear() -> T

Return the value of Self that is clear.

impl<T> CloneToUninit for T
where T: Copy,

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> CloneToUninit for T
where T: Clone,

default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more

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fn __clone_box(&self, _: Private) -> *mut ()

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.

fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more

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Returns the argument unchanged.

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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Get a reference to the inner from the outer.

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Get a mutable reference to the inner from the outer.

impl<T> LowerBounded for T
where T: Bounded,

fn min_value() -> T

Returns the smallest finite number this type can represent

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more

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where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more

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const ALIGN: usize = _

The alignment of pointer.

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The type for initializers.

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

Initializes a with the given initializer. Read more

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Dereferences the given pointer. Read more

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type Output = T

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fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

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where Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

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where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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

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The counterpart to unchecked_from.

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Convert from a value of T into an equivalent instance of Self.

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Consume self to return an equivalent value of T.

impl<T> UpperBounded for T
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fn max_value() -> T

Returns the largest finite number this type can represent

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