Struct primitives::big_num::BigNum

pub struct BigNum(_);

Implementations

impl BigNum

pub fn new(num: BigUint) -> Result<Self, ParseBigIntError>

pub fn div_floor(&self, other: &Self) -> Self

pub fn to_f64(&self) -> Option<f64>

pub fn to_u64(&self) -> Option<u64>

pub fn to_str_radix(&self, radix: u32) -> String

pub fn from_bytes_be(buf: &[u8]) -> Self

pub fn with_precision(whole_number: u64, with_precision: u8) -> Self

With this method you can easily create a BigNum from a whole number

Example

let dai_precision = 18;
let whole_number = 15;

let bignum = BigNum::with_precision(whole_number, dai_precision);
let expected = "15000000000000000000";

assert_eq!(expected, &bignum.to_string());

Trait Implementations

impl Add<&BigNum> for &BigNum

type Output = BigNum

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<&BigNum> for BigNum

type Output = BigNum

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<BigNum> for &BigNum

type Output = BigNum

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<BigNum> for BigNum

type Output = BigNum

The resulting type after applying the + operator.

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

Performs the + operation.

impl AddAssign<&BigNum> for BigNum

fn add_assign(&mut self, rhs: &BigNum)

Performs the += operation.

impl CheckedSub for BigNum

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

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

impl Clone for BigNum

fn clone(&self) -> BigNum

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BigNum

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

Formats the value using the given formatter.

impl Default for BigNum

fn default() -> BigNum

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BigNum

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

Deserialize this value from the given Serde deserializer.

impl Display for BigNum

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

Formats the value using the given formatter.

impl Div<&BigNum> for &BigNum

type Output = BigNum

The resulting type after applying the / operator.

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

Performs the / operation.

impl Div<&BigNum> for BigNum

type Output = BigNum

The resulting type after applying the / operator.

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

Performs the / operation.

impl Div<BigNum> for BigNum

type Output = BigNum

The resulting type after applying the / operator.

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

Performs the / operation.

impl From<BigUint> for BigNum

fn from(value: BigUint) -> Self

Converts to this type from the input type.

impl From<u64> for BigNum

fn from(value: u64) -> Self

Converts to this type from the input type.

impl<'a> FromSql<'a> for BigNum

fn from_sql(
    ty: &Type,
    raw: &'a [u8]
) -> Result<BigNum, Box<dyn Error + Sync + Send>>

Creates a new value of this type from a buffer of data of the specified Postgres Type in its binary format.

fn accepts(ty: &Type) -> bool

Determines if a value of this type can be created from the specified Postgres Type.

fn from_sql_null(
    ty: &Type
) -> Result<Self, Box<dyn Error + Sync + Send + 'static, Global>>

Creates a new value of this type from a NULL SQL value.

fn from_sql_nullable(
    ty: &Type,
    raw: Option<&'a [u8]>
) -> Result<Self, Box<dyn Error + Sync + Send + 'static, Global>>

A convenience function that delegates to from_sql and from_sql_null depending on the value of raw.

impl FromStr for BigNum

type Err = ParseBigIntError

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 Hash for BigNum

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 Integer for BigNum

fn div_floor(&self, other: &Self) -> Self

Floored integer division.

fn mod_floor(&self, other: &Self) -> Self

Floored integer modulo, satisfying:

fn gcd(&self, other: &Self) -> Self

Greatest Common Divisor (GCD).

fn lcm(&self, other: &Self) -> Self

Lowest Common Multiple (LCM).

fn divides(&self, other: &Self) -> bool

Deprecated, use is_multiple_of instead.

fn is_multiple_of(&self, other: &Self) -> bool

Returns true if self is a multiple of other.

fn is_even(&self) -> bool

Returns true if the number is even.

fn is_odd(&self) -> bool

Returns true if the number is odd.

fn div_rem(&self, other: &Self) -> (Self, Self)

Simultaneous truncated integer division and modulus. Returns (quotient, remainder).

fn div_ceil(&self, other: &Self) -> Self

Ceiled integer division.

fn gcd_lcm(&self, other: &Self) -> (Self, Self)

Greatest Common Divisor (GCD) and Lowest Common Multiple (LCM) together.

fn extended_gcd(&self, other: &Self) -> ExtendedGcd<Self>where
    Self: Clone,

Greatest common divisor and Bézout coefficients.

fn div_mod_floor(&self, other: &Self) -> (Self, Self)

Simultaneous floored integer division and modulus. Returns (quotient, remainder).

fn next_multiple_of(&self, other: &Self) -> Selfwhere
    Self: Clone,

Rounds up to nearest multiple of argument.

fn prev_multiple_of(&self, other: &Self) -> Selfwhere
    Self: Clone,

Rounds down to nearest multiple of argument.

impl Mul<&BigNum> for &BigNum

type Output = BigNum

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul<&BigNum> for BigNum

type Output = BigNum

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul<&Ratio<BigNum>> for &BigNum

type Output = BigNum

The resulting type after applying the * operator.

fn mul(self, rhs: &Ratio<BigNum>) -> Self::Output

Performs the * operation.

impl Mul<&Ratio<BigNum>> for BigNum

type Output = BigNum

The resulting type after applying the * operator.

fn mul(self, rhs: &Ratio<BigNum>) -> Self::Output

Performs the * operation.

impl Mul<&u64> for BigNum

type Output = BigNum

The resulting type after applying the * operator.

fn mul(self, rhs: &u64) -> Self::Output

Performs the * operation.

impl Mul<BigNum> for BigNum

type Output = BigNum

The resulting type after applying the * operator.

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

Performs the * operation.

impl Num for BigNum

type FromStrRadixErr = <BigUint as Num>::FromStrRadixErr

fn from_str_radix(s: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>

Convert from a string and radix (typically 2..=36).

impl One for BigNum

fn one() -> Self

Returns the multiplicative identity element of Self, 1.

fn is_one(&self) -> bool

Returns true if self is equal to the multiplicative identity.

fn set_one(&mut self)

Sets self to the multiplicative identity element of Self, 1.

impl Ord for BigNum

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<BigNum> for BigNum

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

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

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<BigNum> for BigNum

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

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

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

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

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

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

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

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

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

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

impl Pow<&BigNum> for &BigNum

type Output = BigNum

The result after applying the operator.

fn pow(self, rhs: &BigNum) -> Self::Output

Returns self to the power rhs.

impl Pow<&BigNum> for BigNum

type Output = BigNum

The result after applying the operator.

fn pow(self, rhs: &BigNum) -> Self::Output

Returns self to the power rhs.

impl Pow<BigNum> for &BigNum

type Output = BigNum

The result after applying the operator.

fn pow(self, rhs: BigNum) -> Self::Output

Returns self to the power rhs.

impl Pow<BigNum> for BigNum

type Output = BigNum

The result after applying the operator.

fn pow(self, rhs: BigNum) -> Self::Output

Returns self to the power rhs.

impl Pow<u8> for BigNum

type Output = BigNum

The result after applying the operator.

fn pow(self, rhs: u8) -> Self::Output

Returns self to the power rhs.

impl Rem<BigNum> for BigNum

type Output = BigNum

The resulting type after applying the % operator.

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

Performs the % operation.

impl Serialize for BigNum

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

Serialize this value into the given Serde serializer.

impl Sub<&BigNum> for &BigNum

type Output = BigNum

The resulting type after applying the - operator.

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

Performs the - operation.

impl Sub<BigNum> for BigNum

type Output = BigNum

The resulting type after applying the - operator.

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

Performs the - operation.

impl<'a> Sum<&'a BigNum> for BigNum

fn sum<I: Iterator<Item = &'a BigNum>>(iter: I) -> Self

Method which takes an iterator and generates Self from the elements by “summing up” the items.

impl<'a> Sum<&'a UnifiedNum> for BigNum

fn sum<I: Iterator<Item = &'a UnifiedNum>>(iter: I) -> BigNum

Method which takes an iterator and generates Self from the elements by “summing up” the items.

impl ToSql for BigNum

fn to_sql(
    &self,
    ty: &Type,
    w: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send>>

Converts the value of self into the binary format of the specified Postgres Type, appending it to out.

fn accepts(ty: &Type) -> bool

Determines if a value of this type can be converted to the specified Postgres Type.

fn to_sql_checked(
    &self,
    ty: &Type,
    out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send>>

An adaptor method used internally by Rust-Postgres.

fn encode_format(&self, _ty: &Type) -> Format

Specify the encode format

impl TryFrom<&str> for BigNum

type Error = ParseBigIntError

The type returned in the event of a conversion error.

fn try_from(num: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl Zero for BigNum

fn zero() -> Self

Returns the additive identity element of Self, 0.

fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

fn set_zero(&mut self)

Sets self to the additive identity element of Self, 0.

impl Eq for BigNum

impl StructuralEq for BigNum

impl StructuralPartialEq for BigNum