Struct sqlx::types::BigDecimal

pub struct BigDecimal { /* fields omitted */ }

A big decimal type.

Implementations

impl BigDecimal

pub fn new(digits: BigInt, scale: i64) -> BigDecimal

Creates and initializes a BigDecimal.

pub fn parse_bytes(buf: &[u8], radix: u32) -> Option<BigDecimal>

Creates and initializes a BigDecimal.

Decodes using str::from_utf8 and forwards to BigDecimal::from_str_radix. Only base-10 is supported.

Examples

use bigdecimal::{BigDecimal, Zero};

assert_eq!(BigDecimal::parse_bytes(b"0", 10).unwrap(), BigDecimal::zero());
assert_eq!(BigDecimal::parse_bytes(b"13", 10).unwrap(), BigDecimal::from(13));

pub fn with_scale(&self, new_scale: i64) -> BigDecimal

Return a new BigDecimal object equivalent to self, with internal scaling set to the number specified. If the new_scale is lower than the current value (indicating a larger power of 10), digits will be dropped (as precision is lower)

pub fn with_prec(&self, prec: u64) -> BigDecimal

Return a new BigDecimal object with precision set to new value

pub fn sign(&self) -> Sign

Return the sign of the BigDecimal as num::bigint::Sign.

Examples

extern crate num_bigint;
extern crate bigdecimal;
use std::str::FromStr;

assert_eq!(bigdecimal::BigDecimal::from_str("-1").unwrap().sign(), num_bigint::Sign::Minus);
assert_eq!(bigdecimal::BigDecimal::from_str("0").unwrap().sign(), num_bigint::Sign::NoSign);
assert_eq!(bigdecimal::BigDecimal::from_str("1").unwrap().sign(), num_bigint::Sign::Plus);

pub fn as_bigint_and_exponent(&self) -> (BigInt, i64)

Return the internal big integer value and an exponent. Note that a positive exponent indicates a negative power of 10.

Examples

extern crate num_bigint;
extern crate bigdecimal;
use std::str::FromStr;

assert_eq!(bigdecimal::BigDecimal::from_str("1.1").unwrap().as_bigint_and_exponent(),
           (num_bigint::BigInt::from_str("11").unwrap(), 1));

pub fn into_bigint_and_exponent(self) -> (BigInt, i64)

Convert into the internal big integer value and an exponent. Note that a positive exponent indicates a negative power of 10.

Examples

extern crate num_bigint;
extern crate bigdecimal;
use std::str::FromStr;

assert_eq!(bigdecimal::BigDecimal::from_str("1.1").unwrap().into_bigint_and_exponent(),
           (num_bigint::BigInt::from_str("11").unwrap(), 1));

pub fn digits(&self) -> u64

Number of digits in the non-scaled integer representation

pub fn abs(&self) -> BigDecimal

Compute the absolute value of number

pub fn double(&self) -> BigDecimal

pub fn half(&self) -> BigDecimal

Divide this efficiently by 2

Note, if this is odd, the precision will increase by 1, regardless of the context’s limit.

pub fn square(&self) -> BigDecimal

pub fn cube(&self) -> BigDecimal

pub fn sqrt(&self) -> Option<BigDecimal>

Take the square root of the number

If the value is < 0, None is returned

pub fn cbrt(&self) -> BigDecimal

Take the cube root of the number

pub fn inverse(&self) -> BigDecimal

Compute the reciprical of the number: x^-1

pub fn round(&self, round_digits: i64) -> BigDecimal

Return number rounded to round_digits precision after the decimal point

pub fn is_integer(&self) -> bool

Return true if this number has zero fractional part (is equal to an integer)

pub fn exp(&self) -> BigDecimal

Evaluate the natural-exponential function e^x

pub fn normalized(&self) -> BigDecimal

Trait Implementations

impl<'a> Add<&'a BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: &'a BigDecimal) -> BigDecimal

Performs the + operation.

impl<'a> Add<&'a BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: &BigInt) -> BigDecimal

Performs the + operation.

impl<'a, 'b> Add<&'a BigInt> for &'b BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: &BigInt) -> BigDecimal

Performs the + operation.

impl<'a, 'b> Add<&'b BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: &BigDecimal) -> BigDecimal

Performs the + operation.

impl Add<BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: BigDecimal) -> BigDecimal

Performs the + operation.

impl<'a> Add<BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: BigDecimal) -> BigDecimal

Performs the + operation.

impl Add<BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: BigInt) -> BigDecimal

Performs the + operation.

impl<'a> Add<BigInt> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

pub fn add(self, rhs: BigInt) -> BigDecimal

Performs the + operation.

impl<'a> AddAssign<&'a BigDecimal> for BigDecimal

pub fn add_assign(&mut self, rhs: &BigDecimal)

Performs the += operation.

impl<'a> AddAssign<&'a BigInt> for BigDecimal

pub fn add_assign(&mut self, rhs: &BigInt)

Performs the += operation.

impl AddAssign<BigDecimal> for BigDecimal

pub fn add_assign(&mut self, other: BigDecimal)

Performs the += operation.

impl<'a> AddAssign<BigInt> for BigDecimal

pub fn add_assign(&mut self, rhs: BigInt)

Performs the += operation.

impl Clone for BigDecimal

pub fn clone(&self) -> BigDecimal

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BigDecimal

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

Formats the value using the given formatter.

impl<'_> Decode<'_, MySql> for BigDecimal

pub fn decode(
    value: MySqlValueRef<'_>
) -> Result<BigDecimal, Box<dyn Error + Sync + Send + 'static, Global>>

Decode a new value of this type using a raw value from the database.

impl<'_> Decode<'_, Postgres> for BigDecimal

pub fn decode(
    value: PgValueRef<'_>
) -> Result<BigDecimal, Box<dyn Error + Sync + Send + 'static, Global>>

Decode a new value of this type using a raw value from the database.

impl Default for BigDecimal

pub fn default() -> BigDecimal

Returns the “default value” for a type.

impl Display for BigDecimal

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

Formats the value using the given formatter.

impl<'a> Div<&'a BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, other: &'a BigDecimal) -> BigDecimal

Performs the / operation.

impl<'a, 'b> Div<&'b BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, other: &BigDecimal) -> BigDecimal

Performs the / operation.

impl<'a> Div<BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, other: BigDecimal) -> BigDecimal

Performs the / operation.

impl Div<BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, other: BigDecimal) -> BigDecimal

Performs the / operation.

impl<'a> Div<f32> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: f32) -> <&'a BigDecimal as Div<f32>>::Output

Performs the / operation.

impl<'a> Div<f64> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: f64) -> <&'a BigDecimal as Div<f64>>::Output

Performs the / operation.

impl<'a> Div<i16> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i16) -> <&'a BigDecimal as Div<i16>>::Output

Performs the / operation.

impl<'a> Div<i16> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i16) -> <BigDecimal as Div<i16>>::Output

Performs the / operation.

impl<'a> Div<i32> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i32) -> <BigDecimal as Div<i32>>::Output

Performs the / operation.

impl<'a> Div<i32> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i32) -> <&'a BigDecimal as Div<i32>>::Output

Performs the / operation.

impl<'a> Div<i64> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i64) -> <&'a BigDecimal as Div<i64>>::Output

Performs the / operation.

impl<'a> Div<i64> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i64) -> <BigDecimal as Div<i64>>::Output

Performs the / operation.

impl<'a> Div<i8> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i8) -> <&'a BigDecimal as Div<i8>>::Output

Performs the / operation.

impl<'a> Div<i8> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: i8) -> <BigDecimal as Div<i8>>::Output

Performs the / operation.

impl<'a> Div<u16> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: u16) -> <&'a BigDecimal as Div<u16>>::Output

Performs the / operation.

impl<'a> Div<u32> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: u32) -> <&'a BigDecimal as Div<u32>>::Output

Performs the / operation.

impl<'a> Div<u64> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: u64) -> <&'a BigDecimal as Div<u64>>::Output

Performs the / operation.

impl<'a> Div<u8> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

pub fn div(self, den: u8) -> <&'a BigDecimal as Div<u8>>::Output

Performs the / operation.

impl<'_> Encode<'_, MySql> for BigDecimal

pub fn encode_by_ref(&self, buf: &mut Vec<u8, Global>) -> IsNull

Writes the value of self into buf without moving self.

fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<<DB as Database>::TypeInfo>

fn size_hint(&self) -> usize

impl<'_> Encode<'_, Postgres> for BigDecimal

Panics

If this BigDecimal cannot be represented by PgNumeric.

pub fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

Writes the value of self into buf without moving self.

pub fn size_hint(&self) -> usize

fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<<DB as Database>::TypeInfo>

impl From<(BigInt, i64)> for BigDecimal

pub fn from((BigInt, i64)) -> BigDecimal

Performs the conversion.

impl From<BigInt> for BigDecimal

pub fn from(int_val: BigInt) -> BigDecimal

Performs the conversion.

impl From<i16> for BigDecimal

pub fn from(n: i16) -> BigDecimal

Performs the conversion.

impl From<i32> for BigDecimal

pub fn from(n: i32) -> BigDecimal

Performs the conversion.

impl From<i64> for BigDecimal

pub fn from(n: i64) -> BigDecimal

Performs the conversion.

impl From<i8> for BigDecimal

pub fn from(n: i8) -> BigDecimal

Performs the conversion.

impl From<u16> for BigDecimal

pub fn from(n: u16) -> BigDecimal

Performs the conversion.

impl From<u32> for BigDecimal

pub fn from(n: u32) -> BigDecimal

Performs the conversion.

impl From<u64> for BigDecimal

pub fn from(n: u64) -> BigDecimal

Performs the conversion.

impl From<u8> for BigDecimal

pub fn from(n: u8) -> BigDecimal

Performs the conversion.

impl FromPrimitive for BigDecimal

pub fn from_i64(n: i64) -> Option<BigDecimal>

Converts an i64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

pub fn from_u64(n: u64) -> Option<BigDecimal>

Converts an u64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

pub fn from_f32(n: f32) -> Option<BigDecimal>

Converts a f32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

pub fn from_f64(n: f64) -> Option<BigDecimal>

Converts a f64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_isize(n: isize) -> Option<Self>

Converts an isize to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i8(n: i8) -> Option<Self>

Converts an i8 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i16(n: i16) -> Option<Self>

Converts an i16 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i32(n: i32) -> Option<Self>

Converts an i32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i128(n: i128) -> Option<Self>

Converts an i128 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_usize(n: usize) -> Option<Self>

Converts a usize to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u8(n: u8) -> Option<Self>

Converts an u8 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u16(n: u16) -> Option<Self>

Converts an u16 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u32(n: u32) -> Option<Self>

Converts an u32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u128(n: u128) -> Option<Self>

Converts an u128 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

impl FromStr for BigDecimal

type Err = ParseBigDecimalError

The associated error which can be returned from parsing.

pub fn from_str(s: &str) -> Result<BigDecimal, ParseBigDecimalError>

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

impl Hash for BigDecimal

pub fn hash<H>(&self, state: &mut H) where
    H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<'a> Mul<&'a BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: &'a BigDecimal) -> BigDecimal

Performs the * operation.

impl<'a> Mul<&'a BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: &BigInt) -> BigDecimal

Performs the * operation.

impl<'a, 'b> Mul<&'a BigInt> for &'b BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: &BigInt) -> BigDecimal

Performs the * operation.

impl<'a, 'b> Mul<&'b BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: &BigDecimal) -> BigDecimal

Performs the * operation.

impl Mul<BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: BigDecimal) -> BigDecimal

Performs the * operation.

impl<'a> Mul<BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: BigDecimal) -> BigDecimal

Performs the * operation.

impl<'a> Mul<BigInt> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: BigInt) -> BigDecimal

Performs the * operation.

impl Mul<BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

pub fn mul(self, rhs: BigInt) -> BigDecimal

Performs the * operation.

impl<'a> MulAssign<&'a BigDecimal> for BigDecimal

pub fn mul_assign(&mut self, rhs: &BigDecimal)

Performs the *= operation.

impl MulAssign<BigDecimal> for BigDecimal

pub fn mul_assign(&mut self, other: BigDecimal)

Performs the *= operation.

impl Neg for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn neg(self) -> BigDecimal

Performs the unary - operation.

impl<'a> Neg for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn neg(self) -> BigDecimal

Performs the unary - operation.

impl Num for BigDecimal

pub fn from_str_radix(
    s: &str,
    radix: u32
) -> Result<BigDecimal, ParseBigDecimalError>

Creates and initializes a BigDecimal.

type FromStrRadixErr = ParseBigDecimalError

impl One for BigDecimal

pub fn one() -> BigDecimal

Returns the multiplicative identity element of Self, 1.

fn set_one(&mut self)

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

fn is_one(&self) -> bool where
    Self: PartialEq<Self>, 

Returns true if self is equal to the multiplicative identity.

impl Ord for BigDecimal

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

Complete ordering implementation for BigDecimal

Example

use std::str::FromStr;

let a = bigdecimal::BigDecimal::from_str("-1").unwrap();
let b = bigdecimal::BigDecimal::from_str("1").unwrap();
assert!(a < b);
assert!(b > a);
let c = bigdecimal::BigDecimal::from_str("1").unwrap();
assert!(b >= c);
assert!(c >= b);
let d = bigdecimal::BigDecimal::from_str("10.0").unwrap();
assert!(d > c);
let e = bigdecimal::BigDecimal::from_str(".5").unwrap();
assert!(e < c);

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<BigDecimal> for BigDecimal

pub fn eq(&self, rhs: &BigDecimal) -> 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 !=.

impl PartialOrd<BigDecimal> for BigDecimal

pub fn partial_cmp(&self, other: &BigDecimal) -> 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<'a> Rem<&'a BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the % operator.

pub fn rem(self, other: &BigDecimal) -> BigDecimal

Performs the % operation.

impl<'a, 'b> Rem<&'b BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the % operator.

pub fn rem(self, other: &BigDecimal) -> BigDecimal

Performs the % operation.

impl<'a> Rem<BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the % operator.

pub fn rem(self, other: BigDecimal) -> BigDecimal

Performs the % operation.

impl Rem<BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the % operator.

pub fn rem(self, other: BigDecimal) -> BigDecimal

Performs the % operation.

impl Signed for BigDecimal

pub fn abs(&self) -> BigDecimal

Computes the absolute value.

pub fn abs_sub(&self, other: &BigDecimal) -> BigDecimal

The positive difference of two numbers.

pub fn signum(&self) -> BigDecimal

Returns the sign of the number.

pub fn is_positive(&self) -> bool

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

pub fn is_negative(&self) -> bool

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

impl<'a> Sub<&'a BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: &BigDecimal) -> BigDecimal

Performs the - operation.

impl<'a, 'b> Sub<&'a BigInt> for &'b BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: &BigInt) -> BigDecimal

Performs the - operation.

impl<'a> Sub<&'a BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: &BigInt) -> BigDecimal

Performs the - operation.

impl<'a, 'b> Sub<&'b BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: &BigDecimal) -> BigDecimal

Performs the - operation.

impl Sub<BigDecimal> for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: BigDecimal) -> BigDecimal

Performs the - operation.

impl<'a> Sub<BigDecimal> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: BigDecimal) -> BigDecimal

Performs the - operation.

impl Sub<BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: BigInt) -> BigDecimal

Performs the - operation.

impl<'a> Sub<BigInt> for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

pub fn sub(self, rhs: BigInt) -> BigDecimal

Performs the - operation.

impl<'a> SubAssign<&'a BigDecimal> for BigDecimal

pub fn sub_assign(&mut self, rhs: &BigDecimal)

Performs the -= operation.

impl<'a> SubAssign<&'a BigInt> for BigDecimal

pub fn sub_assign(&mut self, rhs: &BigInt)

Performs the -= operation.

impl SubAssign<BigDecimal> for BigDecimal

pub fn sub_assign(&mut self, other: BigDecimal)

Performs the -= operation.

impl<'a> SubAssign<BigInt> for BigDecimal

pub fn sub_assign(&mut self, rhs: BigInt)

Performs the -= operation.

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

pub fn sum<I>(iter: I) -> BigDecimal where
    I: Iterator<Item = &'a BigDecimal>, 

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

impl Sum<BigDecimal> for BigDecimal

pub fn sum<I>(iter: I) -> BigDecimal where
    I: Iterator<Item = BigDecimal>, 

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

impl ToBigInt for BigDecimal

pub fn to_bigint(&self) -> Option<BigInt>

Converts the value of self to a BigInt.

impl ToPrimitive for BigDecimal

pub fn to_i64(&self) -> Option<i64>

Converts the value of self to an i64. If the value cannot be represented by an i64, then None is returned.

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

Converts the value of self to a u64. If the value cannot be represented by a u64, then None is returned.

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

Converts the value of self to an f64. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f64.

fn to_isize(&self) -> Option<isize>

Converts the value of self to an isize. If the value cannot be represented by an isize, then None is returned.

fn to_i8(&self) -> Option<i8>

Converts the value of self to an i8. If the value cannot be represented by an i8, then None is returned.

fn to_i16(&self) -> Option<i16>

Converts the value of self to an i16. If the value cannot be represented by an i16, then None is returned.

fn to_i32(&self) -> Option<i32>

Converts the value of self to an i32. If the value cannot be represented by an i32, then None is returned.

fn to_i128(&self) -> Option<i128>

Converts the value of self to an i128. If the value cannot be represented by an i128 (i64 under the default implementation), then None is returned.

fn to_usize(&self) -> Option<usize>

Converts the value of self to a usize. If the value cannot be represented by a usize, then None is returned.

fn to_u8(&self) -> Option<u8>

Converts the value of self to a u8. If the value cannot be represented by a u8, then None is returned.

fn to_u16(&self) -> Option<u16>

Converts the value of self to a u16. If the value cannot be represented by a u16, then None is returned.

fn to_u32(&self) -> Option<u32>

Converts the value of self to a u32. If the value cannot be represented by a u32, then None is returned.

fn to_u128(&self) -> Option<u128>

Converts the value of self to a u128. If the value cannot be represented by a u128 (u64 under the default implementation), then None is returned.

fn to_f32(&self) -> Option<f32>

Converts the value of self to an f32. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f32.

impl TryFrom<PgNumeric> for BigDecimal

type Error = Box<dyn Error + Sync + Send + 'static, Global>

The type returned in the event of a conversion error.

pub fn try_from(
    numeric: PgNumeric
) -> Result<BigDecimal, Box<dyn Error + Sync + Send + 'static, Global>>

Performs the conversion.

impl TryFrom<f32> for BigDecimal

type Error = ParseBigDecimalError

The type returned in the event of a conversion error.

pub fn try_from(
    n: f32
) -> Result<BigDecimal, <BigDecimal as TryFrom<f32>>::Error>

Performs the conversion.

impl TryFrom<f64> for BigDecimal

type Error = ParseBigDecimalError

The type returned in the event of a conversion error.

pub fn try_from(
    n: f64
) -> Result<BigDecimal, <BigDecimal as TryFrom<f64>>::Error>

Performs the conversion.

impl Type<MySql> for BigDecimal

pub fn type_info() -> MySqlTypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<DB as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.

impl Type<Postgres> for BigDecimal

pub fn type_info() -> PgTypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<DB as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.

impl Zero for BigDecimal

pub fn zero() -> BigDecimal

Returns the additive identity element of Self, 0.

pub 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 BigDecimal

impl StructuralEq for BigDecimal