Struct sp_runtime::FixedU128

pub struct FixedU128(_);

Re-export top-level arithmetic stuff. A fixed point number representation in the range.

Fixed Point 128 bits unsigned, range = [0.000000000000000000, 340282366920938463463.374607431768211455]

Implementations

impl FixedU128

Re-export top-level arithmetic stuff.

pub const fn from_inner(inner: u128) -> FixedU128

const version of FixedPointNumber::from_inner.

pub fn from_fraction(x: f64) -> FixedU128

pub fn to_fraction(self) -> f64

Trait Implementations

impl Add<FixedU128> for FixedU128

type Output = FixedU128

The resulting type after applying the + operator.

fn add(self, rhs: FixedU128) -> <FixedU128 as Add<FixedU128>>::Output

Performs the + operation.

impl Bounded for FixedU128

fn min_value() -> FixedU128

returns the smallest finite number this type can represent

fn max_value() -> FixedU128

returns the largest finite number this type can represent

impl CheckedAdd for FixedU128

fn checked_add(&self, rhs: &FixedU128) -> Option<FixedU128>

Adds two numbers, checking for overflow. If overflow happens, None is returned.

impl CheckedDiv for FixedU128

fn checked_div(&self, other: &FixedU128) -> Option<FixedU128>

Divides two numbers, checking for underflow, overflow and division by zero. If any of that happens, None is returned.

impl CheckedMul for FixedU128

fn checked_mul(&self, other: &FixedU128) -> Option<FixedU128>

Multiplies two numbers, checking for underflow or overflow. If underflow or overflow happens, None is returned.

impl CheckedSub for FixedU128

fn checked_sub(&self, rhs: &FixedU128) -> Option<FixedU128>

Subtracts two numbers, checking for underflow. If underflow happens, None is returned.

impl Clone for FixedU128

fn clone(&self) -> FixedU128

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for FixedU128

impl Debug for FixedU128

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

Formats the value using the given formatter.

impl Decode for FixedU128

fn decode<DecIn>(input: &mut DecIn) -> Result<FixedU128, Error> where
    DecIn: Input, 

Attempt to deserialise the value from input.

impl Default for FixedU128

fn default() -> FixedU128

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for FixedU128

fn deserialize<D>(
    deserializer: D
) -> Result<FixedU128, <D as Deserializer<'de>>::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for FixedU128

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

Formats the value using the given formatter.

impl Div<FixedU128> for FixedU128

type Output = FixedU128

The resulting type after applying the / operator.

fn div(self, rhs: FixedU128) -> <FixedU128 as Div<FixedU128>>::Output

Performs the / operation.

impl Encode for FixedU128

fn encode_to<EncOut>(&self, dest: &mut EncOut) where
    EncOut: Output, 

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R, 

Convert self to a slice and then invoke the given closure with it.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

impl EncodeLike<FixedU128> for FixedU128

impl Eq for FixedU128

impl FixedPointNumber for FixedU128

type Inner = u128

The underlying data type used for this fixed point number.

const DIV: <FixedU128 as FixedPointNumber>::Inner

Precision of this fixed point implementation. It should be a power of 10.

const SIGNED: bool

Indicates if this fixed point implementation is signed or not.

fn from_inner(inner: <FixedU128 as FixedPointNumber>::Inner) -> FixedU128

Builds this type from an integer number.

fn into_inner(self) -> <FixedU128 as FixedPointNumber>::Inner

Consumes self and returns the inner raw value.

fn accuracy() -> Self::Inner

Precision of this fixed point implementation.

fn saturating_from_integer<N>(int: N) -> Self where
    N: FixedPointOperand, 

Creates self from an integer number int.

fn checked_from_integer(int: Self::Inner) -> Option<Self>

Creates self from an integer number int.

fn saturating_from_rational<N, D>(n: N, d: D) -> Self where
    D: FixedPointOperand,
    N: FixedPointOperand, 

Creates self from a rational number. Equal to n / d.

fn checked_from_rational<N, D>(n: N, d: D) -> Option<Self> where
    D: FixedPointOperand,
    N: FixedPointOperand, 

Creates self from a rational number. Equal to n / d.

fn checked_mul_int<N>(self, n: N) -> Option<N> where
    N: FixedPointOperand, 

Checked multiplication for integer type N. Equal to self * n.

fn saturating_mul_int<N>(self, n: N) -> N where
    N: FixedPointOperand, 

Saturating multiplication for integer type N. Equal to self * n.

fn checked_div_int<N>(self, d: N) -> Option<N> where
    N: FixedPointOperand, 

Checked division for integer type N. Equal to self / d.

fn saturating_div_int<N>(self, d: N) -> N where
    N: FixedPointOperand, 

Saturating division for integer type N. Equal to self / d.

fn saturating_mul_acc_int<N>(self, n: N) -> N where
    N: FixedPointOperand, 

Saturating multiplication for integer type N, adding the result back. Equal to self * n + n.

fn saturating_abs(self) -> Self

Saturating absolute value.

fn reciprocal(self) -> Option<Self>

Takes the reciprocal (inverse). Equal to 1 / self.

fn zero() -> Self

Returns zero.

fn is_zero(&self) -> bool

Checks if the number is zero.

fn one() -> Self

Returns one.

fn is_one(&self) -> bool

Checks if the number is one.

fn is_positive(self) -> bool

Returns true if self is positive and false if the number is zero or negative.

fn is_negative(self) -> bool

Returns true if self is negative and false if the number is zero or positive.

fn trunc(self) -> Self

Returns the integer part.

fn frac(self) -> Self

Returns the fractional part.

fn ceil(self) -> Self

Returns the smallest integer greater than or equal to a number.

fn floor(self) -> Self

Returns the largest integer less than or equal to a number.

fn round(self) -> Self

Returns the number rounded to the nearest integer. Rounds half-way cases away from 0.0.

impl<N, D> From<(N, D)> for FixedU128 where
    D: FixedPointOperand,
    N: FixedPointOperand, 

fn from(r: (N, D)) -> FixedU128

Performs the conversion.

impl<P> From<P> for FixedU128 where
    P: PerThing, 

fn from(p: P) -> FixedU128

Performs the conversion.

impl From<u128> for FixedU128

fn from(int: u128) -> FixedU128

Performs the conversion.

impl FromStr for FixedU128

type Err = &'static str

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<FixedU128, <FixedU128 as FromStr>::Err>

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

impl Mul<FixedU128> for FixedU128

type Output = FixedU128

The resulting type after applying the * operator.

fn mul(self, rhs: FixedU128) -> <FixedU128 as Mul<FixedU128>>::Output

Performs the * operation.

impl Neg for FixedU128

type Output = FixedU128

The resulting type after applying the - operator.

fn neg(self) -> <FixedU128 as Neg>::Output

Performs the unary - operation.

impl Ord for FixedU128

fn cmp(&self, other: &FixedU128) -> Ordering

This method returns an Ordering between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl PartialEq<FixedU128> for FixedU128

fn eq(&self, other: &FixedU128) -> bool

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

fn ne(&self, other: &FixedU128) -> bool

This method tests for !=.

impl PartialOrd<FixedU128> for FixedU128

fn partial_cmp(&self, other: &FixedU128) -> Option<Ordering>

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

fn lt(&self, other: &FixedU128) -> bool

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

fn le(&self, other: &FixedU128) -> bool

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

fn gt(&self, other: &FixedU128) -> bool

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

fn ge(&self, other: &FixedU128) -> bool

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

impl Saturating for FixedU128

fn saturating_add(self, rhs: FixedU128) -> FixedU128

Saturating addition. Compute self + rhs, saturating at the numeric bounds instead of overflowing.

fn saturating_sub(self, rhs: FixedU128) -> FixedU128

Saturating subtraction. Compute self - rhs, saturating at the numeric bounds instead of overflowing.

fn saturating_mul(self, rhs: FixedU128) -> FixedU128

Saturating multiply. Compute self * rhs, saturating at the numeric bounds instead of overflowing.

fn saturating_pow(self, exp: usize) -> FixedU128

Saturating exponentiation. Compute self.pow(exp), saturating at the numeric bounds instead of overflowing.

impl Serialize for FixedU128

fn serialize<S>(
    &self,
    serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl Sub<FixedU128> for FixedU128

type Output = FixedU128

The resulting type after applying the - operator.

fn sub(self, rhs: FixedU128) -> <FixedU128 as Sub<FixedU128>>::Output

Performs the - operation.