Struct FixedPoint128 

pub struct FixedPoint128 {
    pub value: i128,
}

Fixed-point representation for exact decimal arithmetic. Uses 128 bits with 18 decimal places (1e18 scale factor). Supports values up to ~170 trillion with 18 decimal precision.

Fields

value: i128

Internal value scaled by 1e18.

Implementations

impl FixedPoint128

pub const SCALE: i128 = 1_000_000_000_000_000_000i128

Scale factor: 10^18 for 18 decimal places.

pub const ZERO: Self

Zero value.

pub fn from_f64(f: f64) -> Self

Create from floating point.

pub fn to_f64(self) -> f64

Convert to floating point.

pub fn from_i64(i: i64) -> Self

Create from integer.

pub fn abs(self) -> Self

Absolute value.

pub fn approx_eq(self, other: Self, tolerance: Self) -> bool

Check if approximately equal within tolerance.

pub fn is_zero(self, tolerance: Self) -> bool

Check if zero within tolerance.

Trait Implementations

impl Add for FixedPoint128

type Output = FixedPoint128

The resulting type after applying the + operator.

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

Performs the + operation.

impl AddAssign for FixedPoint128

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl Clone for FixedPoint128

fn clone(&self) -> FixedPoint128

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FixedPoint128

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

Formats the value using the given formatter.

impl Default for FixedPoint128

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FixedPoint128

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for FixedPoint128

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Neg for FixedPoint128

type Output = FixedPoint128

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl Ord for FixedPoint128

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FixedPoint128

fn eq(&self, other: &FixedPoint128) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for FixedPoint128

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for FixedPoint128

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for FixedPoint128

type Output = FixedPoint128

The resulting type after applying the - operator.

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

Performs the - operation.

impl SubAssign for FixedPoint128

fn sub_assign(&mut self, rhs: Self)

Performs the -= operation.

impl Copy for FixedPoint128

impl Eq for FixedPoint128

impl StructuralPartialEq for FixedPoint128