Struct sp_arithmetic::FixedI128

pub struct FixedI128(_);

A fixed point number representation in the range.

Fixed Point 128 bits signed, range = [-170141183460469231731.687303715884105728, 170141183460469231731.687303715884105727]

Implementations

impl FixedI128

pub const fn from_inner(inner: i128) -> Self

const version of FixedPointNumber::from_inner.

pub fn from_fraction(x: f64) -> Self

pub fn to_fraction(self) -> f64

Trait Implementations

impl Add<FixedI128> for FixedI128

type Output = Self

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self::Output

Performs the + operation.

impl Bounded for FixedI128

fn min_value() -> Self

returns the smallest finite number this type can represent

fn max_value() -> Self

returns the largest finite number this type can represent

impl CheckedAdd for FixedI128

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

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

impl CheckedDiv for FixedI128

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

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

impl CheckedMul for FixedI128

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

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

impl CheckedSub for FixedI128

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

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

impl Clone for FixedI128

fn clone(&self) -> FixedI128

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for FixedI128

impl Debug for FixedI128

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

Formats the value using the given formatter.

impl Decode for FixedI128

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

Attempt to deserialise the value from input.

impl Default for FixedI128

fn default() -> FixedI128

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for FixedI128

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

Deserialize this value from the given Serde deserializer.

impl Display for FixedI128

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

Formats the value using the given formatter.

impl Div<FixedI128> for FixedI128

type Output = Self

The resulting type after applying the / operator.

fn div(self, rhs: Self) -> Self::Output

Performs the / operation.

impl Encode for FixedI128

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

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: FnOnce(&[u8]) -> R>(&self, f: F) -> 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<FixedI128> for FixedI128

impl Eq for FixedI128

impl FixedPointNumber for FixedI128

type Inner = i128

The underlying data type used for this fixed point number.

const DIV: Self::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: Self::Inner) -> Self

Builds this type from an integer number.

fn into_inner(self) -> Self::Inner

Consumes self and returns the inner raw value.

fn accuracy() -> Self::Inner

Precision of this fixed point implementation.

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

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: FixedPointOperand, D: FixedPointOperand>(
    n: N,
    d: D
) -> Self

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

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

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

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

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

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

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

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

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

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

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

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

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: FixedPointOperand, D: FixedPointOperand> From<(N, D)> for FixedI128

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

Performs the conversion.

impl<P: PerThing> From<P> for FixedI128

fn from(p: P) -> Self

Performs the conversion.

impl From<i128> for FixedI128

fn from(int: i128) -> Self

Performs the conversion.

impl FromStr for FixedI128

type Err = &'static str

The associated error which can be returned from parsing.

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

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

impl Mul<FixedI128> for FixedI128

type Output = Self

The resulting type after applying the * operator.

fn mul(self, rhs: Self) -> Self::Output

Performs the * operation.

impl Neg for FixedI128

type Output = Self

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl Ord for FixedI128

fn cmp(&self, other: &FixedI128) -> 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<FixedI128> for FixedI128

fn eq(&self, other: &FixedI128) -> bool

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

fn ne(&self, other: &FixedI128) -> bool

This method tests for !=.

impl PartialOrd<FixedI128> for FixedI128

fn partial_cmp(&self, other: &FixedI128) -> Option<Ordering>

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

fn lt(&self, other: &FixedI128) -> bool

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

fn le(&self, other: &FixedI128) -> bool

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

fn gt(&self, other: &FixedI128) -> bool

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

fn ge(&self, other: &FixedI128) -> bool

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

impl Saturating for FixedI128

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

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

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

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

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

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

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

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

impl Serialize for FixedI128

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

Serialize this value into the given Serde serializer.

impl StructuralEq for FixedI128

impl StructuralPartialEq for FixedI128

impl Sub<FixedI128> for FixedI128

type Output = Self

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self::Output

Performs the - operation.