Struct U128x128

pub struct U128x128(/* private fields */);

Implementations

impl U128x128

pub fn to_bytes(self) -> [u8; 32]

Encode this number as a 32-byte array.

The encoding has the property that it preserves ordering, i.e., if x <= y (with numeric ordering) then x.to_bytes() <= y.to_bytes() (with the lex ordering on byte strings).

pub fn from_bytes(bytes: [u8; 32]) -> Self

Decode this number from a 32-byte array.

pub fn ratio<T: Into<Self>>(numerator: T, denominator: T) -> Result<Self, Error>

pub fn is_integral(&self) -> bool

Checks whether this number is integral, i.e., whether it has no fractional part.

pub fn round_down(self) -> Self

Rounds the number down to the nearest integer.

pub fn round_up(&self) -> Result<Self, Error>

Rounds the number up to the nearest integer.

pub fn checked_mul(self, rhs: &Self) -> Result<Self, Error>

Performs checked multiplication, returning Ok if no overflow occurred.

pub fn checked_div(self, rhs: &Self) -> Result<Self, Error>

Performs checked division, returning Ok if no overflow occurred.

pub fn checked_add(self, rhs: &Self) -> Result<Self, Error>

Performs checked addition, returning Ok if no overflow occurred.

pub fn checked_sub(self, rhs: &Self) -> Result<Self, Error>

Performs checked subtraction, returning Ok if no underflow occurred.

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

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

pub fn apply_to_amount(self, rhs: &Amount) -> Result<Amount, Error>

Multiply an amount by this fraction, then round down.

Trait Implementations

impl Add<&U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: &U128x128) -> Self::Output

Performs the + operation.

impl Add<&U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: &U128x128) -> Self::Output

Performs the + operation.

impl Add<&U128x128> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: &U128x128) -> Self::Output

Performs the + operation.

impl Add<Result<U128x128, Error>> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the + operation.

impl Add<Result<U128x128, Error>> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the + operation.

impl Add<U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: U128x128) -> Self::Output

Performs the + operation.

impl Add<U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: U128x128) -> Self::Output

Performs the + operation.

impl Add for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the + operator.

fn add(self, rhs: U128x128) -> Self::Output

Performs the + operation.

impl AllocVar<U128x128, Fq> for U128x128Var

fn new_variable<T: Borrow<U128x128>>( cs: impl Into<Namespace<Fq>>, f: impl FnOnce() -> Result<T, SynthesisError>, mode: AllocationMode, ) -> Result<Self, SynthesisError>

Allocates a new variable of type Self in the ConstraintSystem cs. The mode of allocation is decided by mode.

fn new_constant( cs: impl Into<Namespace<F>>, t: impl Borrow<V>, ) -> Result<Self, SynthesisError>

Allocates a new constant of type Self in the ConstraintSystem cs.

fn new_input<T>( cs: impl Into<Namespace<F>>, f: impl FnOnce() -> Result<T, SynthesisError>, ) -> Result<Self, SynthesisError>

where T: Borrow<V>,

Allocates a new public input of type Self in the ConstraintSystem cs.

fn new_witness<T>( cs: impl Into<Namespace<F>>, f: impl FnOnce() -> Result<T, SynthesisError>, ) -> Result<Self, SynthesisError>

where T: Borrow<V>,

Allocates a new private witness of type Self in the ConstraintSystem cs.

impl Clone for U128x128

fn clone(&self) -> U128x128

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for U128x128

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

Formats the value using the given formatter.

impl Default for U128x128

fn default() -> Self

Returns the “default value” for a type.

impl Display for U128x128

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

Formats the value using the given formatter.

impl Div<&U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: &U128x128) -> Self::Output

Performs the / operation.

impl Div<&U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: &U128x128) -> Self::Output

Performs the / operation.

impl Div<&U128x128> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: &U128x128) -> Self::Output

Performs the / operation.

impl Div<Result<U128x128, Error>> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the / operation.

impl Div<Result<U128x128, Error>> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the / operation.

impl Div<U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: U128x128) -> Self::Output

Performs the / operation.

impl Div<U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: U128x128) -> Self::Output

Performs the / operation.

impl Div for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the / operator.

fn div(self, rhs: U128x128) -> Self::Output

Performs the / operation.

impl From<&Amount> for U128x128

fn from(value: &Amount) -> Self

Converts to this type from the input type.

impl From<[u8; 32]> for U128x128

fn from(value: [u8; 32]) -> Self

Converts to this type from the input type.

impl From<Amount> for U128x128

fn from(amount: Amount) -> U128x128

Converts to this type from the input type.

impl From<U128x128> for [u8; 32]

fn from(value: U128x128) -> Self

Converts to this type from the input type.

impl From<U128x128> for Vec<u8>

fn from(value: U128x128) -> Self

Converts to this type from the input type.

impl From<U128x128> for f64

fn from(value: U128x128) -> Self

Converts to this type from the input type.

impl From<u128> for U128x128

fn from(value: u128) -> Self

Converts to this type from the input type.

impl From<u16> for U128x128

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for U128x128

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for U128x128

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for U128x128

fn from(value: u8) -> Self

Converts to this type from the input type.

impl Mul<&U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: &U128x128) -> Self::Output

Performs the * operation.

impl Mul<&U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: &U128x128) -> Self::Output

Performs the * operation.

impl Mul<&U128x128> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: &U128x128) -> Self::Output

Performs the * operation.

impl Mul<Result<U128x128, Error>> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the * operation.

impl Mul<Result<U128x128, Error>> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the * operation.

impl Mul<U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: U128x128) -> Self::Output

Performs the * operation.

impl Mul<U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: U128x128) -> Self::Output

Performs the * operation.

impl Mul for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the * operator.

fn mul(self, rhs: U128x128) -> Self::Output

Performs the * operation.

impl Ord for U128x128

fn cmp(&self, other: &U128x128) -> 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 U128x128

fn eq(&self, other: &U128x128) -> 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 U128x128

fn partial_cmp(&self, other: &U128x128) -> 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 Sub<&U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: &U128x128) -> Self::Output

Performs the - operation.

impl Sub<&U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: &U128x128) -> Self::Output

Performs the - operation.

impl Sub<&U128x128> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: &U128x128) -> Self::Output

Performs the - operation.

impl Sub<Result<U128x128, Error>> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the - operation.

impl Sub<Result<U128x128, Error>> for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: Result<U128x128, Error>) -> Self::Output

Performs the - operation.

impl Sub<U128x128> for &U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: U128x128) -> Self::Output

Performs the - operation.

impl Sub<U128x128> for Result<U128x128, Error>

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: U128x128) -> Self::Output

Performs the - operation.

impl Sub for U128x128

type Output = Result<U128x128, Error>

The resulting type after applying the - operator.

fn sub(self, rhs: U128x128) -> Self::Output

Performs the - operation.

impl ToConstraintField<Fq> for U128x128

fn to_field_elements(&self) -> Option<Vec<Fq>>

impl TryFrom<&[u8]> for U128x128

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<U128x128> for Amount

type Error = <u128 as TryFrom<U128x128>>::Error

The type returned in the event of a conversion error.

fn try_from(value: U128x128) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<U128x128> for u128

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: U128x128) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<U128x128> for u64

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: U128x128) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<f64> for U128x128

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: f64) -> Result<U128x128, Self::Error>

Performs the conversion.

impl Copy for U128x128

impl Eq for U128x128

impl StructuralPartialEq for U128x128