Struct BigDecimal

pub struct BigDecimal { /* private fields */ }

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

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

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

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

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

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

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

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

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

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

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

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add for BigDecimal

type Output = BigDecimal

The resulting type after applying the + operator.

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

Performs the + operation.

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

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

Performs the += operation.

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

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

Performs the += operation.

impl<'a> AddAssign<BigInt> for BigDecimal

fn add_assign(&mut self, rhs: BigInt)

Performs the += operation.

impl AddAssign for BigDecimal

fn add_assign(&mut self, other: BigDecimal)

Performs the += operation.

impl Clone for BigDecimal

fn clone(&self) -> BigDecimal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BigDecimal

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

Formats the value using the given formatter.

impl Decode<'_, Postgres> for BigDecimal

Note: NaN

BigDecimal has a greater range than NUMERIC (see the corresponding Encode impl for details) but cannot represent NaN, so decoding may return an error.

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

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

impl Default for BigDecimal

fn default() -> BigDecimal

Returns the “default value” for a type.

impl Display for BigDecimal

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

Formats the value using the given formatter.

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

type Output = BigDecimal

The resulting type after applying the / operator.

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

Performs the / operation.

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

type Output = BigDecimal

The resulting type after applying the / operator.

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

Performs the / operation.

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

type Output = BigDecimal

The resulting type after applying the / operator.

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.

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.

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.

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.

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

Performs the / operation.

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

type Output = BigDecimal

The resulting type after applying the / operator.

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

Performs the / operation.

impl<'a> Div<i32> for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

fn div(self, den: i32) -> <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.

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.

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.

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.

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.

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.

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.

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.

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

Performs the / operation.

impl Div for BigDecimal

type Output = BigDecimal

The resulting type after applying the / operator.

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

Performs the / operation.

impl Encode<'_, Postgres> for BigDecimal

Note: BigDecimal Has a Larger Range than NUMERIC

BigDecimal can represent values with a far, far greater range than the NUMERIC type in Postgres can.

NUMERIC is limited to 131,072 digits before the decimal point, and 16,384 digits after it. See Section 8.1, Numeric Types of the Postgres manual for details.

Meanwhile, BigDecimal can theoretically represent a value with an arbitrary number of decimal digits, albeit with a maximum of 2⁶³ significant figures.

Because encoding in the current API design must be infallible, when attempting to encode a BigDecimal that cannot fit in the wire representation of NUMERIC, SQLx may instead encode a sentinel value that falls outside the allowed range but is still representable.

This will cause the query to return a DatabaseError with code 22P03 (invalid_binary_representation) and the error message invalid scale in external "numeric" value (though this may be subject to change).

However, BigDecimal should be able to decode any NUMERIC value except NaN, for which it has no representation.

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

Writes the value of self into buf without moving self.

fn size_hint(&self) -> usize

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

where Self: Sized,

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

fn from(_: (BigInt, i64)) -> BigDecimal

Converts to this type from the input type.

impl From<BigInt> for BigDecimal

fn from(int_val: BigInt) -> BigDecimal

Converts to this type from the input type.

impl From<i16> for BigDecimal

fn from(n: i16) -> BigDecimal

Converts to this type from the input type.

impl From<i32> for BigDecimal

fn from(n: i32) -> BigDecimal

Converts to this type from the input type.

impl From<i64> for BigDecimal

fn from(n: i64) -> BigDecimal

Converts to this type from the input type.

impl From<i8> for BigDecimal

fn from(n: i8) -> BigDecimal

Converts to this type from the input type.

impl From<u16> for BigDecimal

fn from(n: u16) -> BigDecimal

Converts to this type from the input type.

impl From<u32> for BigDecimal

fn from(n: u32) -> BigDecimal

Converts to this type from the input type.

impl From<u64> for BigDecimal

fn from(n: u64) -> BigDecimal

Converts to this type from the input type.

impl From<u8> for BigDecimal

fn from(n: u8) -> BigDecimal

Converts to this type from the input type.

impl FromPrimitive for BigDecimal

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.

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.

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.

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.

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

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

impl Hash for BigDecimal

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

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

type Output = BigDecimal

The resulting type after applying the * operator.

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

Performs the * operation.

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

type Output = BigDecimal

The resulting type after applying the * operator.

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

Performs the * operation.

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

type Output = BigDecimal

The resulting type after applying the * operator.

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

Performs the * operation.

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

type Output = BigDecimal

The resulting type after applying the * operator.

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

Performs the * operation.

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

type Output = BigDecimal

The resulting type after applying the * operator.

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.

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

Performs the * operation.

impl Mul<BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul for BigDecimal

type Output = BigDecimal

The resulting type after applying the * operator.

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

Performs the * operation.

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

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

Performs the *= operation.

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

fn mul_assign(&mut self, rhs: &BigInt)

Performs the *= operation.

impl MulAssign<BigInt> for BigDecimal

fn mul_assign(&mut self, rhs: BigInt)

Performs the *= operation.

impl MulAssign for BigDecimal

fn mul_assign(&mut self, other: BigDecimal)

Performs the *= operation.

impl<'a> Neg for &'a BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

fn neg(self) -> BigDecimal

Performs the unary - operation.

impl Neg for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

fn neg(self) -> BigDecimal

Performs the unary - operation.

impl Num for BigDecimal

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

Creates and initializes a BigDecimal.

type FromStrRadixErr = ParseBigDecimalError

impl One for BigDecimal

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,

Returns true if self is equal to the multiplicative identity.

impl Ord for BigDecimal

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

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 BigDecimal

fn eq(&self, rhs: &BigDecimal) -> 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 BigDecimal

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

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 PgHasArrayType for BigDecimal

fn array_type_info() -> PgTypeInfo

fn array_compatible(ty: &PgTypeInfo) -> bool

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

type Output = BigDecimal

The resulting type after applying the % operator.

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

Performs the % operation.

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

type Output = BigDecimal

The resulting type after applying the % operator.

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.

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

Performs the % operation.

impl Rem for BigDecimal

type Output = BigDecimal

The resulting type after applying the % operator.

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

Performs the % operation.

impl Signed for BigDecimal

fn abs(&self) -> BigDecimal

Computes the absolute value.

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

The positive difference of two numbers.

fn signum(&self) -> BigDecimal

Returns the sign of the number.

fn is_positive(&self) -> bool

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

fn is_negative(&self) -> bool

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

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

type Output = BigDecimal

The resulting type after applying the - operator.

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

Performs the - operation.

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

type Output = BigDecimal

The resulting type after applying the - operator.

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.

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.

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

Performs the - operation.

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

type Output = BigDecimal

The resulting type after applying the - operator.

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

Performs the - operation.

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

type Output = BigDecimal

The resulting type after applying the - operator.

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

Performs the - operation.

impl Sub<BigInt> for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

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

Performs the - operation.

impl Sub for BigDecimal

type Output = BigDecimal

The resulting type after applying the - operator.

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

Performs the - operation.

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

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

Performs the -= operation.

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

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

Performs the -= operation.

impl<'a> SubAssign<BigInt> for BigDecimal

fn sub_assign(&mut self, rhs: BigInt)

Performs the -= operation.

impl SubAssign for BigDecimal

fn sub_assign(&mut self, other: BigDecimal)

Performs the -= operation.

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

fn sum<I>(iter: I) -> BigDecimal

where I: Iterator<Item = &'a BigDecimal>,

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Sum for BigDecimal

fn sum<I>(iter: I) -> BigDecimal

where I: Iterator<Item = BigDecimal>,

Takes an iterator and generates Self from the elements by “summing up” the items.

impl ToBigInt for BigDecimal

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

Converts the value of self to a BigInt.

impl ToPrimitive for BigDecimal

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.

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.

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>

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<f32> for BigDecimal

type Error = ParseBigDecimalError

The type returned in the event of a conversion error.

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.

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

Performs the conversion.

impl Type<Postgres> for BigDecimal

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

fn zero() -> BigDecimal

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 BigDecimal