Struct rust_decimal::Decimal
source · #[repr(C)]pub struct Decimal { /* private fields */ }
Expand description
Decimal
represents a 128 bit representation of a fixed-precision decimal number.
The finite set of values of type Decimal
are of the form m / 10e,
where m is an integer such that -296 < m < 296, and e is an integer
between 0 and 28 inclusive.
Implementations
sourceimpl Decimal
impl Decimal
sourcepub const MIN: Decimal = MIN
pub const MIN: Decimal = MIN
The smallest value that can be represented by this decimal type.
Examples
Basic usage:
assert_eq!(Decimal::MIN, dec!(-79_228_162_514_264_337_593_543_950_335));
sourcepub const MAX: Decimal = MAX
pub const MAX: Decimal = MAX
The largest value that can be represented by this decimal type.
Examples
Basic usage:
assert_eq!(Decimal::MAX, dec!(79_228_162_514_264_337_593_543_950_335));
sourcepub const NEGATIVE_ONE: Decimal = NEGATIVE_ONE
pub const NEGATIVE_ONE: Decimal = NEGATIVE_ONE
sourcepub const ONE_HUNDRED: Decimal = ONE_HUNDRED
pub const ONE_HUNDRED: Decimal = ONE_HUNDRED
sourcepub const ONE_THOUSAND: Decimal = ONE_THOUSAND
pub const ONE_THOUSAND: Decimal = ONE_THOUSAND
sourcepub const PI: Decimal = _
pub const PI: Decimal = _
A constant representing π as 3.1415926535897932384626433833
Examples
Basic usage:
assert_eq!(Decimal::PI, dec!(3.1415926535897932384626433833));
sourcepub const HALF_PI: Decimal = _
pub const HALF_PI: Decimal = _
A constant representing π/2 as 1.5707963267948966192313216916
Examples
Basic usage:
assert_eq!(Decimal::HALF_PI, dec!(1.5707963267948966192313216916));
sourcepub const QUARTER_PI: Decimal = _
pub const QUARTER_PI: Decimal = _
A constant representing π/4 as 0.7853981633974483096156608458
Examples
Basic usage:
assert_eq!(Decimal::QUARTER_PI, dec!(0.7853981633974483096156608458));
sourcepub const TWO_PI: Decimal = _
pub const TWO_PI: Decimal = _
A constant representing 2π as 6.2831853071795864769252867666
Examples
Basic usage:
assert_eq!(Decimal::TWO_PI, dec!(6.2831853071795864769252867666));
sourcepub const E: Decimal = _
pub const E: Decimal = _
A constant representing Euler’s number (e) as 2.7182818284590452353602874714
Examples
Basic usage:
assert_eq!(Decimal::E, dec!(2.7182818284590452353602874714));
sourcepub const E_INVERSE: Decimal = _
pub const E_INVERSE: Decimal = _
A constant representing the inverse of Euler’s number (1/e) as 0.3678794411714423215955237702
Examples
Basic usage:
assert_eq!(Decimal::E_INVERSE, dec!(0.3678794411714423215955237702));
sourcepub fn new(num: i64, scale: u32) -> Decimal
pub fn new(num: i64, scale: u32) -> Decimal
Returns a Decimal
with a 64 bit m
representation and corresponding e
scale.
Arguments
num
- An i64 that represents them
portion of the decimal numberscale
- A u32 representing thee
portion of the decimal number.
Panics
This function panics if scale
is > 28.
Example
let pi = Decimal::new(3141, 3);
assert_eq!(pi.to_string(), "3.141");
sourcepub const fn try_new(num: i64, scale: u32) -> Result<Decimal>
pub const fn try_new(num: i64, scale: u32) -> Result<Decimal>
Checked version of Decimal::new
. Will return Err
instead of panicking at run-time.
Example
let max = Decimal::try_new(i64::MAX, u32::MAX);
assert!(max.is_err());
sourcepub fn from_i128_with_scale(num: i128, scale: u32) -> Decimal
pub fn from_i128_with_scale(num: i128, scale: u32) -> Decimal
Creates a Decimal
using a 128 bit signed m
representation and corresponding e
scale.
Arguments
num
- An i128 that represents them
portion of the decimal numberscale
- A u32 representing thee
portion of the decimal number.
Panics
This function panics if scale
is > 28 or if num
exceeds the maximum supported 96 bits.
Example
let pi = Decimal::from_i128_with_scale(3141i128, 3);
assert_eq!(pi.to_string(), "3.141");
sourcepub const fn try_from_i128_with_scale(num: i128, scale: u32) -> Result<Decimal>
pub const fn try_from_i128_with_scale(num: i128, scale: u32) -> Result<Decimal>
Checked version of Decimal::from_i128_with_scale
. Will return Err
instead
of panicking at run-time.
Example
let max = Decimal::try_from_i128_with_scale(i128::MAX, u32::MAX);
assert!(max.is_err());
sourcepub const fn from_parts(
lo: u32,
mid: u32,
hi: u32,
negative: bool,
scale: u32
) -> Decimal
pub const fn from_parts(
lo: u32,
mid: u32,
hi: u32,
negative: bool,
scale: u32
) -> Decimal
Returns a Decimal
using the instances constituent parts.
Arguments
lo
- The low 32 bits of a 96-bit integer.mid
- The middle 32 bits of a 96-bit integer.hi
- The high 32 bits of a 96-bit integer.negative
-true
to indicate a negative number.scale
- A power of 10 ranging from 0 to 28.
Caution: Undefined behavior
While a scale greater than 28 can be passed in, it will be automatically capped by this function at the maximum precision. The library opts towards this functionality as opposed to a panic to ensure that the function can be treated as constant. This may lead to undefined behavior in downstream applications and should be treated with caution.
Example
let pi = Decimal::from_parts(1102470952, 185874565, 1703060790, false, 28);
assert_eq!(pi.to_string(), "3.1415926535897932384626433832");
sourcepub fn from_str_radix(str: &str, radix: u32) -> Result<Self, Error>
pub fn from_str_radix(str: &str, radix: u32) -> Result<Self, Error>
Converts a string slice in a given base to a decimal.
The string is expected to be an optional + sign followed by digits. Digits are a subset of these characters, depending on radix, and will return an error if outside the expected range:
- 0-9
- a-z
- A-Z
Examples
Basic usage:
assert_eq!(Decimal::from_str_radix("A", 16)?.to_string(), "10");
sourcepub fn from_str_exact(str: &str) -> Result<Self, Error>
pub fn from_str_exact(str: &str) -> Result<Self, Error>
Parses a string slice into a decimal. If the value underflows and cannot be represented with the given scale then this will return an error.
Examples
Basic usage:
assert_eq!(Decimal::from_str_exact("0.001")?.to_string(), "0.001");
assert_eq!(Decimal::from_str_exact("0.00000_00000_00000_00000_00000_001")?.to_string(), "0.0000000000000000000000000001");
assert_eq!(Decimal::from_str_exact("0.00000_00000_00000_00000_00000_0001"), Err(Error::Underflow));
sourcepub const fn scale(&self) -> u32
pub const fn scale(&self) -> u32
Returns the scale of the decimal number, otherwise known as e
.
Example
let num = Decimal::new(1234, 3);
assert_eq!(num.scale(), 3u32);
sourcepub const fn mantissa(&self) -> i128
pub const fn mantissa(&self) -> i128
Returns the mantissa of the decimal number.
Example
use rust_decimal_macros::dec;
let num = dec!(-1.2345678);
assert_eq!(num.mantissa(), -12345678i128);
assert_eq!(num.scale(), 7);
sourcepub const fn is_zero(&self) -> bool
pub const fn is_zero(&self) -> bool
Returns true if this Decimal number is equivalent to zero.
Example
let num = Decimal::ZERO;
assert!(num.is_zero());
sourcepub fn set_sign(&mut self, positive: bool)
👎Deprecated since 1.4.0: please use set_sign_positive
instead
pub fn set_sign(&mut self, positive: bool)
set_sign_positive
insteadsourcepub fn set_sign_positive(&mut self, positive: bool)
pub fn set_sign_positive(&mut self, positive: bool)
sourcepub fn set_sign_negative(&mut self, negative: bool)
pub fn set_sign_negative(&mut self, negative: bool)
sourcepub fn rescale(&mut self, scale: u32)
pub fn rescale(&mut self, scale: u32)
Modifies the Decimal
towards the desired scale, attempting to do so without changing the
underlying number itself.
Setting the scale to something less then the current Decimal
s scale will
cause the newly created Decimal
to perform rounding using the MidpointAwayFromZero
strategy.
Scales greater than the maximum precision that can be represented by Decimal
will be
automatically rounded to either Decimal::MAX_PRECISION
or the maximum precision that can
be represented with the given mantissa.
Arguments
scale
: The desired scale to use for the newDecimal
number.
Example
use rust_decimal_macros::dec;
// Rescaling to a higher scale preserves the value
let mut number = dec!(1.123);
assert_eq!(number.scale(), 3);
number.rescale(6);
assert_eq!(number.to_string(), "1.123000");
assert_eq!(number.scale(), 6);
// Rescaling to a lower scale forces the number to be rounded
let mut number = dec!(1.45);
assert_eq!(number.scale(), 2);
number.rescale(1);
assert_eq!(number.to_string(), "1.5");
assert_eq!(number.scale(), 1);
// This function never fails. Consequently, if a scale is provided that is unable to be
// represented using the given mantissa, then the maximum possible scale is used.
let mut number = dec!(11.76470588235294);
assert_eq!(number.scale(), 14);
number.rescale(28);
// A scale of 28 cannot be represented given this mantissa, however it was able to represent
// a number with a scale of 27
assert_eq!(number.to_string(), "11.764705882352940000000000000");
assert_eq!(number.scale(), 27);
sourcepub const fn serialize(&self) -> [u8; 16]
pub const fn serialize(&self) -> [u8; 16]
Returns a serialized version of the decimal number. The resulting byte array will have the following representation:
- Bytes 1-4: flags
- Bytes 5-8: lo portion of
m
- Bytes 9-12: mid portion of
m
- Bytes 13-16: high portion of
m
sourcepub fn deserialize(bytes: [u8; 16]) -> Decimal
pub fn deserialize(bytes: [u8; 16]) -> Decimal
Deserializes the given bytes into a decimal number. The deserialized byte representation must be 16 bytes and adhere to the following convention:
- Bytes 1-4: flags
- Bytes 5-8: lo portion of
m
- Bytes 9-12: mid portion of
m
- Bytes 13-16: high portion of
m
sourcepub fn is_negative(&self) -> bool
👎Deprecated since 0.6.3: please use is_sign_negative
instead
pub fn is_negative(&self) -> bool
is_sign_negative
insteadReturns true
if the decimal is negative.
sourcepub fn is_positive(&self) -> bool
👎Deprecated since 0.6.3: please use is_sign_positive
instead
pub fn is_positive(&self) -> bool
is_sign_positive
insteadReturns true
if the decimal is positive.
sourcepub const fn is_sign_negative(&self) -> bool
pub const fn is_sign_negative(&self) -> bool
Returns true
if the sign bit of the decimal is negative.
Example
assert_eq!(true, Decimal::new(-1, 0).is_sign_negative());
assert_eq!(false, Decimal::new(1, 0).is_sign_negative());
sourcepub const fn is_sign_positive(&self) -> bool
pub const fn is_sign_positive(&self) -> bool
Returns true
if the sign bit of the decimal is positive.
Example
assert_eq!(false, Decimal::new(-1, 0).is_sign_positive());
assert_eq!(true, Decimal::new(1, 0).is_sign_positive());
sourcepub const fn min_value() -> Decimal
👎Deprecated since 1.12.0: Use the associated constant Decimal::MIN
pub const fn min_value() -> Decimal
Returns the minimum possible number that Decimal
can represent.
sourcepub const fn max_value() -> Decimal
👎Deprecated since 1.12.0: Use the associated constant Decimal::MAX
pub const fn max_value() -> Decimal
Returns the maximum possible number that Decimal
can represent.
sourcepub fn trunc(&self) -> Decimal
pub fn trunc(&self) -> Decimal
Returns a new Decimal
integral with no fractional portion.
This is a true truncation whereby no rounding is performed.
Example
let pi = Decimal::new(3141, 3);
let trunc = Decimal::new(3, 0);
// note that it returns a decimal
assert_eq!(pi.trunc(), trunc);
sourcepub fn fract(&self) -> Decimal
pub fn fract(&self) -> Decimal
Returns a new Decimal
representing the fractional portion of the number.
Example
let pi = Decimal::new(3141, 3);
let fract = Decimal::new(141, 3);
// note that it returns a decimal
assert_eq!(pi.fract(), fract);
sourcepub fn abs(&self) -> Decimal
pub fn abs(&self) -> Decimal
Computes the absolute value of self
.
Example
let num = Decimal::new(-3141, 3);
assert_eq!(num.abs().to_string(), "3.141");
sourcepub fn floor(&self) -> Decimal
pub fn floor(&self) -> Decimal
Returns the largest integer less than or equal to a number.
Example
let num = Decimal::new(3641, 3);
assert_eq!(num.floor().to_string(), "3");
sourcepub fn ceil(&self) -> Decimal
pub fn ceil(&self) -> Decimal
Returns the smallest integer greater than or equal to a number.
Example
let num = Decimal::new(3141, 3);
assert_eq!(num.ceil().to_string(), "4");
let num = Decimal::new(3, 0);
assert_eq!(num.ceil().to_string(), "3");
sourcepub fn max(self, other: Decimal) -> Decimal
pub fn max(self, other: Decimal) -> Decimal
Returns the maximum of the two numbers.
let x = Decimal::new(1, 0);
let y = Decimal::new(2, 0);
assert_eq!(y, x.max(y));
sourcepub fn min(self, other: Decimal) -> Decimal
pub fn min(self, other: Decimal) -> Decimal
Returns the minimum of the two numbers.
let x = Decimal::new(1, 0);
let y = Decimal::new(2, 0);
assert_eq!(x, x.min(y));
sourcepub fn normalize(&self) -> Decimal
pub fn normalize(&self) -> Decimal
Strips any trailing zero’s from a Decimal
and converts -0 to 0.
Example
let number = Decimal::from_str("3.100")?;
assert_eq!(number.normalize().to_string(), "3.1");
sourcepub fn normalize_assign(&mut self)
pub fn normalize_assign(&mut self)
An in place version of normalize
. Strips any trailing zero’s from a Decimal
and converts -0 to 0.
Example
let mut number = Decimal::from_str("3.100")?;
assert_eq!(number.to_string(), "3.100");
number.normalize_assign();
assert_eq!(number.to_string(), "3.1");
sourcepub fn round(&self) -> Decimal
pub fn round(&self) -> Decimal
Returns a new Decimal
number with no fractional portion (i.e. an integer).
Rounding currently follows “Bankers Rounding” rules. e.g. 6.5 -> 6, 7.5 -> 8
Example
// Demonstrating bankers rounding...
let number_down = Decimal::new(65, 1);
let number_up = Decimal::new(75, 1);
assert_eq!(number_down.round().to_string(), "6");
assert_eq!(number_up.round().to_string(), "8");
sourcepub fn round_dp_with_strategy(
&self,
dp: u32,
strategy: RoundingStrategy
) -> Decimal
pub fn round_dp_with_strategy(
&self,
dp: u32,
strategy: RoundingStrategy
) -> Decimal
Returns a new Decimal
number with the specified number of decimal points for fractional
portion.
Rounding is performed using the provided RoundingStrategy
Arguments
dp
: the number of decimal points to round to.strategy
: theRoundingStrategy
to use.
Example
let tax = dec!(3.4395);
assert_eq!(tax.round_dp_with_strategy(2, RoundingStrategy::MidpointAwayFromZero).to_string(), "3.44");
sourcepub fn round_dp(&self, dp: u32) -> Decimal
pub fn round_dp(&self, dp: u32) -> Decimal
Returns a new Decimal
number with the specified number of decimal points for fractional portion.
Rounding currently follows “Bankers Rounding” rules. e.g. 6.5 -> 6, 7.5 -> 8
Arguments
dp
: the number of decimal points to round to.
Example
let pi = dec!(3.1415926535897932384626433832);
assert_eq!(pi.round_dp(2).to_string(), "3.14");
sourcepub fn round_sf(&self, digits: u32) -> Option<Decimal>
pub fn round_sf(&self, digits: u32) -> Option<Decimal>
Returns Some(Decimal)
number rounded to the specified number of significant digits. If
the resulting number is unable to be represented by the Decimal
number then None
will
be returned.
When the number of significant figures of the Decimal
being rounded is greater than the requested
number of significant digits then rounding will be performed using MidpointNearestEven
strategy.
Arguments
digits
: the number of significant digits to round to.
Remarks
A significant figure is determined using the following rules:
- Non-zero digits are always significant.
- Zeros between non-zero digits are always significant.
- Leading zeros are never significant.
- Trailing zeros are only significant if the number contains a decimal point.
Example
use rust_decimal_macros::dec;
let value = dec!(305.459);
assert_eq!(value.round_sf(0), Some(dec!(0)));
assert_eq!(value.round_sf(1), Some(dec!(300)));
assert_eq!(value.round_sf(2), Some(dec!(310)));
assert_eq!(value.round_sf(3), Some(dec!(305)));
assert_eq!(value.round_sf(4), Some(dec!(305.5)));
assert_eq!(value.round_sf(5), Some(dec!(305.46)));
assert_eq!(value.round_sf(6), Some(dec!(305.459)));
assert_eq!(value.round_sf(7), Some(dec!(305.4590)));
assert_eq!(Decimal::MAX.round_sf(1), None);
let value = dec!(0.012301);
assert_eq!(value.round_sf(3), Some(dec!(0.0123)));
sourcepub fn round_sf_with_strategy(
&self,
digits: u32,
strategy: RoundingStrategy
) -> Option<Decimal>
pub fn round_sf_with_strategy(
&self,
digits: u32,
strategy: RoundingStrategy
) -> Option<Decimal>
Returns Some(Decimal)
number rounded to the specified number of significant digits. If
the resulting number is unable to be represented by the Decimal
number then None
will
be returned.
When the number of significant figures of the Decimal
being rounded is greater than the requested
number of significant digits then rounding will be performed using the provided RoundingStrategy.
Arguments
digits
: the number of significant digits to round to.strategy
: if required, the rounding strategy to use.
Remarks
A significant figure is determined using the following rules:
- Non-zero digits are always significant.
- Zeros between non-zero digits are always significant.
- Leading zeros are never significant.
- Trailing zeros are only significant if the number contains a decimal point.
Example
use rust_decimal_macros::dec;
let value = dec!(305.459);
assert_eq!(value.round_sf_with_strategy(0, RoundingStrategy::ToZero), Some(dec!(0)));
assert_eq!(value.round_sf_with_strategy(1, RoundingStrategy::ToZero), Some(dec!(300)));
assert_eq!(value.round_sf_with_strategy(2, RoundingStrategy::ToZero), Some(dec!(300)));
assert_eq!(value.round_sf_with_strategy(3, RoundingStrategy::ToZero), Some(dec!(305)));
assert_eq!(value.round_sf_with_strategy(4, RoundingStrategy::ToZero), Some(dec!(305.4)));
assert_eq!(value.round_sf_with_strategy(5, RoundingStrategy::ToZero), Some(dec!(305.45)));
assert_eq!(value.round_sf_with_strategy(6, RoundingStrategy::ToZero), Some(dec!(305.459)));
assert_eq!(value.round_sf_with_strategy(7, RoundingStrategy::ToZero), Some(dec!(305.4590)));
assert_eq!(Decimal::MAX.round_sf_with_strategy(1, RoundingStrategy::ToZero), Some(dec!(70000000000000000000000000000)));
let value = dec!(0.012301);
assert_eq!(value.round_sf_with_strategy(3, RoundingStrategy::AwayFromZero), Some(dec!(0.0124)));
sourcepub const fn unpack(&self) -> UnpackedDecimal
pub const fn unpack(&self) -> UnpackedDecimal
Convert Decimal
to an internal representation of the underlying struct. This is useful
for debugging the internal state of the object.
Important Disclaimer
This is primarily intended for library maintainers. The internal representation of a
Decimal
is considered “unstable” for public use.
Example
use rust_decimal_macros::dec;
let pi = dec!(3.1415926535897932384626433832);
assert_eq!(format!("{:?}", pi), "3.1415926535897932384626433832");
assert_eq!(format!("{:?}", pi.unpack()), "UnpackedDecimal { \
negative: false, scale: 28, hi: 1703060790, mid: 185874565, lo: 1102470952 \
}");
sourcepub fn from_f32_retain(n: f32) -> Option<Self>
pub fn from_f32_retain(n: f32) -> Option<Self>
Parses a 32-bit float into a Decimal number whilst retaining any non-guaranteed precision.
Typically when a float is parsed in Rust Decimal, any excess bits (after ~7.22 decimal points for f32 as per IEEE-754) are removed due to any digits following this are considered an approximation at best. This function bypasses this additional step and retains these excess bits.
Example
// Usually floats are parsed leveraging float guarantees. i.e. 0.1_f32 => 0.1
assert_eq!("0.1", Decimal::from_f32(0.1_f32).unwrap().to_string());
// Sometimes, we may want to represent the approximation exactly.
assert_eq!("0.100000001490116119384765625", Decimal::from_f32_retain(0.1_f32).unwrap().to_string());
sourcepub fn from_f64_retain(n: f64) -> Option<Self>
pub fn from_f64_retain(n: f64) -> Option<Self>
Parses a 64-bit float into a Decimal number whilst retaining any non-guaranteed precision.
Typically when a float is parsed in Rust Decimal, any excess bits (after ~15.95 decimal points for f64 as per IEEE-754) are removed due to any digits following this are considered an approximation at best. This function bypasses this additional step and retains these excess bits.
Example
// Usually floats are parsed leveraging float guarantees. i.e. 0.1_f64 => 0.1
assert_eq!("0.1", Decimal::from_f64(0.1_f64).unwrap().to_string());
// Sometimes, we may want to represent the approximation exactly.
assert_eq!("0.1000000000000000055511151231", Decimal::from_f64_retain(0.1_f64).unwrap().to_string());
sourceimpl Decimal
impl Decimal
sourcepub fn checked_add(self, other: Decimal) -> Option<Decimal>
pub fn checked_add(self, other: Decimal) -> Option<Decimal>
Checked addition. Computes self + other
, returning None
if overflow occurred.
sourcepub fn saturating_add(self, other: Decimal) -> Decimal
pub fn saturating_add(self, other: Decimal) -> Decimal
Saturating addition. Computes self + other
, saturating at the relevant upper or lower boundary.
sourcepub fn checked_mul(self, other: Decimal) -> Option<Decimal>
pub fn checked_mul(self, other: Decimal) -> Option<Decimal>
Checked multiplication. Computes self * other
, returning None
if overflow occurred.
sourcepub fn saturating_mul(self, other: Decimal) -> Decimal
pub fn saturating_mul(self, other: Decimal) -> Decimal
Saturating multiplication. Computes self * other
, saturating at the relevant upper or lower boundary.
sourcepub fn checked_sub(self, other: Decimal) -> Option<Decimal>
pub fn checked_sub(self, other: Decimal) -> Option<Decimal>
Checked subtraction. Computes self - other
, returning None
if overflow occurred.
sourcepub fn saturating_sub(self, other: Decimal) -> Decimal
pub fn saturating_sub(self, other: Decimal) -> Decimal
Saturating subtraction. Computes self - other
, saturating at the relevant upper or lower boundary.
sourcepub fn checked_div(self, other: Decimal) -> Option<Decimal>
pub fn checked_div(self, other: Decimal) -> Option<Decimal>
Checked division. Computes self / other
, returning None
if overflow occurred.
sourcepub fn checked_rem(self, other: Decimal) -> Option<Decimal>
pub fn checked_rem(self, other: Decimal) -> Option<Decimal>
Checked remainder. Computes self % other
, returning None
if overflow occurred.
Trait Implementations
sourceimpl<'a> AddAssign<&'a Decimal> for &'a mut Decimal
impl<'a> AddAssign<&'a Decimal> for &'a mut Decimal
sourcefn add_assign(&mut self, other: &'a Decimal)
fn add_assign(&mut self, other: &'a Decimal)
+=
operation. Read moresourceimpl<'a> AddAssign<&'a Decimal> for Decimal
impl<'a> AddAssign<&'a Decimal> for Decimal
sourcefn add_assign(&mut self, other: &'a Decimal)
fn add_assign(&mut self, other: &'a Decimal)
+=
operation. Read moresourceimpl<'a> AddAssign<Decimal> for &'a mut Decimal
impl<'a> AddAssign<Decimal> for &'a mut Decimal
sourcefn add_assign(&mut self, other: Decimal)
fn add_assign(&mut self, other: Decimal)
+=
operation. Read moresourceimpl AddAssign<Decimal> for Decimal
impl AddAssign<Decimal> for Decimal
sourcefn add_assign(&mut self, other: Decimal)
fn add_assign(&mut self, other: Decimal)
+=
operation. Read moresourceimpl Arbitrary<'_> for Decimal
impl Arbitrary<'_> for Decimal
sourcefn arbitrary(u: &mut Unstructured<'_>) -> ArbitraryResult<Self>
fn arbitrary(u: &mut Unstructured<'_>) -> ArbitraryResult<Self>
Self
from the given unstructured data. Read moresourcefn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>
fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>
Self
from the entirety of the given
unstructured data. Read moresourceimpl Archive for Decimalwhere
u32: Archive,
u32: Archive,
u32: Archive,
u32: Archive,
impl Archive for Decimalwhere
u32: Archive,
u32: Archive,
u32: Archive,
u32: Archive,
sourceimpl<'expr> AsExpression<Nullable<Numeric>> for &'expr Decimal
impl<'expr> AsExpression<Nullable<Numeric>> for &'expr Decimal
type Expression = Bound<Nullable<Numeric>, &'expr Decimal>
type Expression = Bound<Nullable<Numeric>, &'expr Decimal>
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
sourceimpl AsExpression<Nullable<Numeric>> for Decimal
impl AsExpression<Nullable<Numeric>> for Decimal
type Expression = Bound<Nullable<Numeric>, Decimal>
type Expression = Bound<Nullable<Numeric>, Decimal>
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
sourceimpl<'expr> AsExpression<Numeric> for &'expr Decimal
impl<'expr> AsExpression<Numeric> for &'expr Decimal
type Expression = Bound<Numeric, &'expr Decimal>
type Expression = Bound<Numeric, &'expr Decimal>
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
sourceimpl AsExpression<Numeric> for Decimal
impl AsExpression<Numeric> for Decimal
type Expression = Bound<Numeric, Decimal>
type Expression = Bound<Numeric, Decimal>
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
sourceimpl BorshDeserialize for Decimalwhere
u32: BorshDeserialize,
u32: BorshDeserialize,
u32: BorshDeserialize,
u32: BorshDeserialize,
impl BorshDeserialize for Decimalwhere
u32: BorshDeserialize,
u32: BorshDeserialize,
u32: BorshDeserialize,
u32: BorshDeserialize,
sourceimpl BorshSchema for Decimalwhere
u32: BorshSchema,
u32: BorshSchema,
u32: BorshSchema,
u32: BorshSchema,
impl BorshSchema for Decimalwhere
u32: BorshSchema,
u32: BorshSchema,
u32: BorshSchema,
u32: BorshSchema,
sourcefn declaration() -> Declaration
fn declaration() -> Declaration
sourcefn add_definitions_recursively(
definitions: &mut HashMap<Declaration, Definition>
)
fn add_definitions_recursively(
definitions: &mut HashMap<Declaration, Definition>
)
sourcefn add_definition(
declaration: String,
definition: Definition,
definitions: &mut HashMap<String, Definition, RandomState>
)
fn add_definition(
declaration: String,
definition: Definition,
definitions: &mut HashMap<String, Definition, RandomState>
)
fn schema_container() -> BorshSchemaContainer
sourceimpl BorshSerialize for Decimalwhere
u32: BorshSerialize,
u32: BorshSerialize,
u32: BorshSerialize,
u32: BorshSerialize,
impl BorshSerialize for Decimalwhere
u32: BorshSerialize,
u32: BorshSerialize,
u32: BorshSerialize,
u32: BorshSerialize,
sourceimpl CheckedAdd for Decimal
impl CheckedAdd for Decimal
sourceimpl CheckedDiv for Decimal
impl CheckedDiv for Decimal
sourceimpl CheckedMul for Decimal
impl CheckedMul for Decimal
sourceimpl CheckedRem for Decimal
impl CheckedRem for Decimal
sourceimpl CheckedSub for Decimal
impl CheckedSub for Decimal
sourceimpl<'de> Deserialize<'de> for Decimal
impl<'de> Deserialize<'de> for Decimal
sourcefn deserialize<D>(deserializer: D) -> Result<Decimal, D::Error>where
D: Deserializer<'de>,
fn deserialize<D>(deserializer: D) -> Result<Decimal, D::Error>where
D: Deserializer<'de>,
sourceimpl<__D: Fallible + ?Sized> Deserialize<Decimal, __D> for Archived<Decimal>where
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
impl<__D: Fallible + ?Sized> Deserialize<Decimal, __D> for Archived<Decimal>where
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
u32: Archive,
Archived<u32>: Deserialize<u32, __D>,
sourceimpl Distribution<Decimal> for Standard
impl Distribution<Decimal> for Standard
sourcefn sample<R>(&self, rng: &mut R) -> Decimalwhere
R: Rng + ?Sized,
fn sample<R>(&self, rng: &mut R) -> Decimalwhere
R: Rng + ?Sized,
T
, using rng
as the source of randomness.sourceimpl<'a> DivAssign<&'a Decimal> for &'a mut Decimal
impl<'a> DivAssign<&'a Decimal> for &'a mut Decimal
sourcefn div_assign(&mut self, other: &'a Decimal)
fn div_assign(&mut self, other: &'a Decimal)
/=
operation. Read moresourceimpl<'a> DivAssign<&'a Decimal> for Decimal
impl<'a> DivAssign<&'a Decimal> for Decimal
sourcefn div_assign(&mut self, other: &'a Decimal)
fn div_assign(&mut self, other: &'a Decimal)
/=
operation. Read moresourceimpl<'a> DivAssign<Decimal> for &'a mut Decimal
impl<'a> DivAssign<Decimal> for &'a mut Decimal
sourcefn div_assign(&mut self, other: Decimal)
fn div_assign(&mut self, other: Decimal)
/=
operation. Read moresourceimpl DivAssign<Decimal> for Decimal
impl DivAssign<Decimal> for Decimal
sourcefn div_assign(&mut self, other: Decimal)
fn div_assign(&mut self, other: Decimal)
/=
operation. Read moresourceimpl<'v> FromFormField<'v> for Decimal
impl<'v> FromFormField<'v> for Decimal
sourcefn default() -> Option<Self>
fn default() -> Option<Self>
sourcefn from_value(field: ValueField<'v>) -> Result<'v, Self>
fn from_value(field: ValueField<'v>) -> Result<'v, Self>
T
from a form value field. Read moresourceimpl FromPrimitive for Decimal
impl FromPrimitive for Decimal
sourcefn from_i32(n: i32) -> Option<Decimal>
fn from_i32(n: i32) -> Option<Decimal>
i32
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_i64(n: i64) -> Option<Decimal>
fn from_i64(n: i64) -> Option<Decimal>
i64
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_i128(n: i128) -> Option<Decimal>
fn from_i128(n: i128) -> Option<Decimal>
i128
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_u32(n: u32) -> Option<Decimal>
fn from_u32(n: u32) -> Option<Decimal>
u32
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_u64(n: u64) -> Option<Decimal>
fn from_u64(n: u64) -> Option<Decimal>
u64
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_u128(n: u128) -> Option<Decimal>
fn from_u128(n: u128) -> Option<Decimal>
u128
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_f32(n: f32) -> Option<Decimal>
fn from_f32(n: f32) -> Option<Decimal>
f32
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_f64(n: f64) -> Option<Decimal>
fn from_f64(n: f64) -> Option<Decimal>
f64
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_isize(n: isize) -> Option<Self>
fn from_isize(n: isize) -> Option<Self>
isize
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_i8(n: i8) -> Option<Self>
fn from_i8(n: i8) -> Option<Self>
i8
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_i16(n: i16) -> Option<Self>
fn from_i16(n: i16) -> Option<Self>
i16
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourcefn from_usize(n: usize) -> Option<Self>
fn from_usize(n: usize) -> Option<Self>
usize
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresourceimpl<'a> FromSql<'a> for Decimal
impl<'a> FromSql<'a> for Decimal
sourcefn from_sql(
_: &Type,
raw: &[u8]
) -> Result<Decimal, Box<dyn Error + Sync + Send + 'static>>
fn from_sql(
_: &Type,
raw: &[u8]
) -> Result<Decimal, Box<dyn Error + Sync + Send + 'static>>
Type
in its binary format. Read moresourcefn accepts(ty: &Type) -> bool
fn accepts(ty: &Type) -> bool
Type
. Read moresourceimpl MathematicalOps for Decimal
impl MathematicalOps for Decimal
sourcefn exp(&self) -> Decimal
fn exp(&self) -> Decimal
0.0000002
. Read moresourcefn checked_exp(&self) -> Option<Decimal>
fn checked_exp(&self) -> Option<Decimal>
0.0000002
. Returns None
on overflow. Read moresourcefn exp_with_tolerance(&self, tolerance: Decimal) -> Decimal
fn exp_with_tolerance(&self, tolerance: Decimal) -> Decimal
tolerance
provided as a hint
as to when to stop calculating. A larger tolerance will cause the number to stop calculating
sooner at the potential cost of a slightly less accurate result. Read moresourcefn checked_exp_with_tolerance(&self, tolerance: Decimal) -> Option<Decimal>
fn checked_exp_with_tolerance(&self, tolerance: Decimal) -> Option<Decimal>
tolerance
provided as a hint
as to when to stop calculating. A larger tolerance will cause the number to stop calculating
sooner at the potential cost of a slightly less accurate result.
Returns None
on overflow. Read moresourcefn checked_powi(&self, exp: i64) -> Option<Decimal>
fn checked_powi(&self, exp: i64) -> Option<Decimal>
None
on overflow.sourcefn checked_powu(&self, exp: u64) -> Option<Decimal>
fn checked_powu(&self, exp: u64) -> Option<Decimal>
None
on overflow.sourcefn checked_powf(&self, exp: f64) -> Option<Decimal>
fn checked_powf(&self, exp: f64) -> Option<Decimal>
None
on overflow.sourcefn powd(&self, exp: Decimal) -> Decimal
fn powd(&self, exp: Decimal) -> Decimal
exp
is not whole then the approximation
ey*ln(x) is used. Read moresourcefn checked_powd(&self, exp: Decimal) -> Option<Decimal>
fn checked_powd(&self, exp: Decimal) -> Option<Decimal>
None
on overflow.
If exp
is not whole then the approximation ey*ln(x) is used. Read moresourcefn sqrt(&self) -> Option<Decimal>
fn sqrt(&self) -> Option<Decimal>
sourcefn ln(&self) -> Decimal
fn ln(&self) -> Decimal
sourcefn checked_ln(&self) -> Option<Decimal>
fn checked_ln(&self) -> Option<Decimal>
None
for negative numbers or zero. Read moresourcefn checked_log10(&self) -> Option<Decimal>
fn checked_log10(&self) -> Option<Decimal>
None
for negative numbers or zero. Read moresourcefn checked_norm_pdf(&self) -> Option<Decimal>
fn checked_norm_pdf(&self) -> Option<Decimal>
None
on overflow.sourcefn sin(&self) -> Decimal
fn sin(&self) -> Decimal
sourcefn checked_sin(&self) -> Option<Decimal>
fn checked_sin(&self) -> Option<Decimal>
sourcefn cos(&self) -> Decimal
fn cos(&self) -> Decimal
sourcefn checked_cos(&self) -> Option<Decimal>
fn checked_cos(&self) -> Option<Decimal>
sourcefn tan(&self) -> Decimal
fn tan(&self) -> Decimal
sourcefn checked_tan(&self) -> Option<Decimal>
fn checked_tan(&self) -> Option<Decimal>
sourceimpl<'a> MulAssign<&'a Decimal> for &'a mut Decimal
impl<'a> MulAssign<&'a Decimal> for &'a mut Decimal
sourcefn mul_assign(&mut self, other: &'a Decimal)
fn mul_assign(&mut self, other: &'a Decimal)
*=
operation. Read moresourceimpl<'a> MulAssign<&'a Decimal> for Decimal
impl<'a> MulAssign<&'a Decimal> for Decimal
sourcefn mul_assign(&mut self, other: &'a Decimal)
fn mul_assign(&mut self, other: &'a Decimal)
*=
operation. Read moresourceimpl<'a> MulAssign<Decimal> for &'a mut Decimal
impl<'a> MulAssign<Decimal> for &'a mut Decimal
sourcefn mul_assign(&mut self, other: Decimal)
fn mul_assign(&mut self, other: Decimal)
*=
operation. Read moresourceimpl MulAssign<Decimal> for Decimal
impl MulAssign<Decimal> for Decimal
sourcefn mul_assign(&mut self, other: Decimal)
fn mul_assign(&mut self, other: Decimal)
*=
operation. Read moresourceimpl Num for Decimal
impl Num for Decimal
type FromStrRadixErr = Error
sourcefn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>
fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>
2..=36
). Read moresourceimpl Ord for Decimal
impl Ord for Decimal
1.21.0 · sourcefn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
1.21.0 · sourcefn min(self, other: Self) -> Selfwhere
Self: Sized,
fn min(self, other: Self) -> Selfwhere
Self: Sized,
1.50.0 · sourcefn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
sourceimpl PartialOrd<Decimal> for Decimal
impl PartialOrd<Decimal> for Decimal
sourcefn partial_cmp(&self, other: &Decimal) -> Option<Ordering>
fn partial_cmp(&self, other: &Decimal) -> Option<Ordering>
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresourceimpl<__ST, __DB> Queryable<__ST, __DB> for Decimalwhere
__DB: Backend,
__ST: SingleValue,
Self: FromSql<__ST, __DB>,
impl<__ST, __DB> Queryable<__ST, __DB> for Decimalwhere
__DB: Backend,
__ST: SingleValue,
Self: FromSql<__ST, __DB>,
sourceimpl<'a> RemAssign<&'a Decimal> for &'a mut Decimal
impl<'a> RemAssign<&'a Decimal> for &'a mut Decimal
sourcefn rem_assign(&mut self, other: &'a Decimal)
fn rem_assign(&mut self, other: &'a Decimal)
%=
operation. Read moresourceimpl<'a> RemAssign<&'a Decimal> for Decimal
impl<'a> RemAssign<&'a Decimal> for Decimal
sourcefn rem_assign(&mut self, other: &'a Decimal)
fn rem_assign(&mut self, other: &'a Decimal)
%=
operation. Read moresourceimpl<'a> RemAssign<Decimal> for &'a mut Decimal
impl<'a> RemAssign<Decimal> for &'a mut Decimal
sourcefn rem_assign(&mut self, other: Decimal)
fn rem_assign(&mut self, other: Decimal)
%=
operation. Read moresourceimpl RemAssign<Decimal> for Decimal
impl RemAssign<Decimal> for Decimal
sourcefn rem_assign(&mut self, other: Decimal)
fn rem_assign(&mut self, other: Decimal)
%=
operation. Read moresourceimpl SampleUniform for Decimal
impl SampleUniform for Decimal
type Sampler = DecimalSampler
type Sampler = DecimalSampler
UniformSampler
implementation supporting type X
.sourceimpl<__S: Fallible + ?Sized> Serialize<__S> for Decimalwhere
u32: Serialize<__S>,
u32: Serialize<__S>,
u32: Serialize<__S>,
u32: Serialize<__S>,
impl<__S: Fallible + ?Sized> Serialize<__S> for Decimalwhere
u32: Serialize<__S>,
u32: Serialize<__S>,
u32: Serialize<__S>,
u32: Serialize<__S>,
sourceimpl Signed for Decimal
impl Signed for Decimal
sourcefn is_positive(&self) -> bool
fn is_positive(&self) -> bool
sourcefn is_negative(&self) -> bool
fn is_negative(&self) -> bool
sourceimpl<'a> SubAssign<&'a Decimal> for &'a mut Decimal
impl<'a> SubAssign<&'a Decimal> for &'a mut Decimal
sourcefn sub_assign(&mut self, other: &'a Decimal)
fn sub_assign(&mut self, other: &'a Decimal)
-=
operation. Read moresourceimpl<'a> SubAssign<&'a Decimal> for Decimal
impl<'a> SubAssign<&'a Decimal> for Decimal
sourcefn sub_assign(&mut self, other: &'a Decimal)
fn sub_assign(&mut self, other: &'a Decimal)
-=
operation. Read moresourceimpl<'a> SubAssign<Decimal> for &'a mut Decimal
impl<'a> SubAssign<Decimal> for &'a mut Decimal
sourcefn sub_assign(&mut self, other: Decimal)
fn sub_assign(&mut self, other: Decimal)
-=
operation. Read moresourceimpl SubAssign<Decimal> for Decimal
impl SubAssign<Decimal> for Decimal
sourcefn sub_assign(&mut self, other: Decimal)
fn sub_assign(&mut self, other: Decimal)
-=
operation. Read moresourceimpl ToPrimitive for Decimal
impl ToPrimitive for Decimal
sourcefn to_i64(&self) -> Option<i64>
fn to_i64(&self) -> Option<i64>
self
to an i64
. If the value cannot be
represented by an i64
, then None
is returned. Read moresourcefn to_i128(&self) -> Option<i128>
fn to_i128(&self) -> Option<i128>
self
to an i128
. If the value cannot be
represented by an i128
(i64
under the default implementation), then
None
is returned. Read moresourcefn to_u64(&self) -> Option<u64>
fn to_u64(&self) -> Option<u64>
self
to a u64
. If the value cannot be
represented by a u64
, then None
is returned. Read moresourcefn to_u128(&self) -> Option<u128>
fn to_u128(&self) -> Option<u128>
self
to a u128
. If the value cannot be
represented by a u128
(u64
under the default implementation), then
None
is returned. Read moresourcefn to_f64(&self) -> Option<f64>
fn to_f64(&self) -> Option<f64>
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
. Read moresourcefn to_isize(&self) -> Option<isize>
fn to_isize(&self) -> Option<isize>
self
to an isize
. If the value cannot be
represented by an isize
, then None
is returned. Read moresourcefn to_i8(&self) -> Option<i8>
fn to_i8(&self) -> Option<i8>
self
to an i8
. If the value cannot be
represented by an i8
, then None
is returned. Read moresourcefn to_i16(&self) -> Option<i16>
fn to_i16(&self) -> Option<i16>
self
to an i16
. If the value cannot be
represented by an i16
, then None
is returned. Read moresourcefn to_i32(&self) -> Option<i32>
fn to_i32(&self) -> Option<i32>
self
to an i32
. If the value cannot be
represented by an i32
, then None
is returned. Read moresourcefn to_usize(&self) -> Option<usize>
fn to_usize(&self) -> Option<usize>
self
to a usize
. If the value cannot be
represented by a usize
, then None
is returned. Read moresourcefn to_u8(&self) -> Option<u8>
fn to_u8(&self) -> Option<u8>
self
to a u8
. If the value cannot be
represented by a u8
, then None
is returned. Read moresourcefn to_u16(&self) -> Option<u16>
fn to_u16(&self) -> Option<u16>
self
to a u16
. If the value cannot be
represented by a u16
, then None
is returned. Read moresourceimpl<__DB> ToSql<Nullable<Numeric>, __DB> for Decimalwhere
__DB: Backend,
Self: ToSql<Numeric, __DB>,
impl<__DB> ToSql<Nullable<Numeric>, __DB> for Decimalwhere
__DB: Backend,
Self: ToSql<Numeric, __DB>,
sourceimpl ToSql for Decimal
impl ToSql for Decimal
sourcefn to_sql(
&self,
_: &Type,
out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send + 'static>>
fn to_sql(
&self,
_: &Type,
out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send + 'static>>
self
into the binary format of the specified
Postgres Type
, appending it to out
. Read moresourcefn accepts(ty: &Type) -> bool
fn accepts(ty: &Type) -> bool
Type
. Read moresourcefn to_sql_checked(
&self,
ty: &Type,
out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send>>
fn to_sql_checked(
&self,
ty: &Type,
out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send>>
sourcefn encode_format(&self, _ty: &Type) -> Format
fn encode_format(&self, _ty: &Type) -> Format
sourceimpl TryFrom<Decimal> for f32
impl TryFrom<Decimal> for f32
Try to convert a Decimal
to f32
.
Can fail if the Decimal
is out of range for f32
.
sourceimpl TryFrom<Decimal> for f64
impl TryFrom<Decimal> for f64
Try to convert a Decimal
to f64
.
Can fail if the Decimal
is out of range for f64
.
sourceimpl TryFrom<Decimal> for i128
impl TryFrom<Decimal> for i128
Try to convert a Decimal
to i128
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for i128
.
sourceimpl TryFrom<Decimal> for i16
impl TryFrom<Decimal> for i16
Try to convert a Decimal
to i16
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for i16
.
sourceimpl TryFrom<Decimal> for i32
impl TryFrom<Decimal> for i32
Try to convert a Decimal
to i32
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for i32
.
sourceimpl TryFrom<Decimal> for i64
impl TryFrom<Decimal> for i64
Try to convert a Decimal
to i64
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for i64
.
sourceimpl TryFrom<Decimal> for i8
impl TryFrom<Decimal> for i8
Try to convert a Decimal
to i8
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for i8
.
sourceimpl TryFrom<Decimal> for isize
impl TryFrom<Decimal> for isize
Try to convert a Decimal
to isize
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for isize
.
sourceimpl TryFrom<Decimal> for u128
impl TryFrom<Decimal> for u128
Try to convert a Decimal
to u128
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for u128
.
sourceimpl TryFrom<Decimal> for u16
impl TryFrom<Decimal> for u16
Try to convert a Decimal
to u16
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for u16
.
sourceimpl TryFrom<Decimal> for u32
impl TryFrom<Decimal> for u32
Try to convert a Decimal
to u32
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for u32
.
sourceimpl TryFrom<Decimal> for u64
impl TryFrom<Decimal> for u64
Try to convert a Decimal
to u64
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for u64
.
sourceimpl TryFrom<Decimal> for u8
impl TryFrom<Decimal> for u8
Try to convert a Decimal
to u8
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for u8
.
sourceimpl TryFrom<Decimal> for usize
impl TryFrom<Decimal> for usize
Try to convert a Decimal
to usize
by truncating and returning the integer component.
Can fail if the Decimal
is out of range for usize
.
sourceimpl TryFrom<f32> for Decimal
impl TryFrom<f32> for Decimal
Try to convert a f32
into a Decimal
.
Can fail if the value is out of range for Decimal
.
sourceimpl TryFrom<f64> for Decimal
impl TryFrom<f64> for Decimal
Try to convert a f64
into a Decimal
.
Can fail if the value is out of range for Decimal
.
impl Copy for Decimal
impl Eq for Decimal
Auto Trait Implementations
impl RefUnwindSafe for Decimal
impl Send for Decimal
impl Sync for Decimal
impl Unpin for Decimal
impl UnwindSafe for Decimal
Blanket Implementations
sourceimpl<T> ArchivePointee for T
impl<T> ArchivePointee for T
type ArchivedMetadata = ()
type ArchivedMetadata = ()
sourcefn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
sourceimpl<T> ArchiveUnsized for Twhere
T: Archive,
impl<T> ArchiveUnsized for Twhere
T: Archive,
type Archived = <T as Archive>::Archived
type Archived = <T as Archive>::Archived
Archive
, it may be unsized. Read moretype MetadataResolver = ()
type MetadataResolver = ()
sourceunsafe fn resolve_metadata(
&self,
_: usize,
_: <T as ArchiveUnsized>::MetadataResolver,
_: *mut <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata
)
unsafe fn resolve_metadata(
&self,
_: usize,
_: <T as ArchiveUnsized>::MetadataResolver,
_: *mut <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata
)
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> BorrowToSql for Twhere
T: ToSql,
impl<T> BorrowToSql for Twhere
T: ToSql,
sourcefn borrow_to_sql(&self) -> &dyn ToSql
fn borrow_to_sql(&self) -> &dyn ToSql
self
as a ToSql
trait object.sourceimpl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
sourceimpl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.sourceimpl<'v, T> FromForm<'v> for Twhere
T: FromFormField<'v>,
impl<'v, T> FromForm<'v> for Twhere
T: FromFormField<'v>,
type Context = FromFieldContext<'v, T>
type Context = FromFieldContext<'v, T>
sourcefn init(opts: Options) -> <T as FromForm<'v>>::Context
fn init(opts: Options) -> <T as FromForm<'v>>::Context
Self
.sourcefn push_value(ctxt: &mut <T as FromForm<'v>>::Context, field: ValueField<'v>)
fn push_value(ctxt: &mut <T as FromForm<'v>>::Context, field: ValueField<'v>)
field
.sourcefn push_data<'life0, 'life1, 'async_trait>(
ctxt: &'life0 mut FromFieldContext<'v, T>,
field: DataField<'v, 'life1>
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait, Global>>where
'v: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
T: 'async_trait,
fn push_data<'life0, 'life1, 'async_trait>(
ctxt: &'life0 mut FromFieldContext<'v, T>,
field: DataField<'v, 'life1>
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait, Global>>where
'v: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
T: 'async_trait,
field
.sourcefn push_error(_ctxt: &mut Self::Context, _error: Error<'r>)
fn push_error(_ctxt: &mut Self::Context, _error: Error<'r>)
_error
. Read moresourceimpl<T, ST, DB> FromSqlRow<ST, DB> for Twhere
T: Queryable<ST, DB>,
ST: SqlTypeOrSelectable,
DB: Backend,
<T as Queryable<ST, DB>>::Row: FromStaticSqlRow<ST, DB>,
impl<T, ST, DB> FromSqlRow<ST, DB> for Twhere
T: Queryable<ST, DB>,
ST: SqlTypeOrSelectable,
DB: Backend,
<T as Queryable<ST, DB>>::Row: FromStaticSqlRow<ST, DB>,
sourceimpl<T, ST, DB> FromStaticSqlRow<ST, DB> for Twhere
DB: Backend,
T: FromSql<ST, DB>,
ST: SingleValue,
impl<T, ST, DB> FromStaticSqlRow<ST, DB> for Twhere
DB: Backend,
T: FromSql<ST, DB>,
ST: SingleValue,
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<T> IntoCollection<T> for T
impl<T> IntoCollection<T> for T
fn into_collection<A>(self) -> SmallVec<A>where
A: Array<Item = T>,
fn into_collection<A>(self) -> SmallVec<A>where
A: Array<Item = T>,
self
into a collection.fn mapped<U, F, A>(self, f: F) -> SmallVec<A>where
F: FnMut(T) -> U,
A: Array<Item = U>,
sourceimpl<T> IntoSql for T
impl<T> IntoSql for T
sourcefn into_sql<T>(self) -> Self::Expressionwhere
Self: AsExpression<T> + Sized,
T: SqlType + TypedExpressionType,
fn into_sql<T>(self) -> Self::Expressionwhere
Self: AsExpression<T> + Sized,
T: SqlType + TypedExpressionType,
self
to an expression for Diesel’s query builder. Read moresourcefn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expressionwhere
&'a Self: AsExpression<T>,
T: SqlType + TypedExpressionType,
fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expressionwhere
&'a Self: AsExpression<T>,
T: SqlType + TypedExpressionType,
&self
to an expression for Diesel’s query builder. Read moresourceimpl<T> IntoSql for T
impl<T> IntoSql for T
sourcefn into_sql<T>(self) -> Self::Expressionwhere
Self: AsExpression<T> + Sized,
fn into_sql<T>(self) -> Self::Expressionwhere
Self: AsExpression<T> + Sized,
self
to an expression for Diesel’s query builder. Read moresourcefn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expressionwhere
&'a Self: AsExpression<T>,
fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expressionwhere
&'a Self: AsExpression<T>,
&self
to an expression for Diesel’s query builder. Read moresourceimpl<Borrowed> SampleBorrow<Borrowed> for Borrowedwhere
Borrowed: SampleUniform,
impl<Borrowed> SampleBorrow<Borrowed> for Borrowedwhere
Borrowed: SampleUniform,
sourcefn borrow(&self) -> &Borrowed
fn borrow(&self) -> &Borrowed
Borrow::borrow
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