Trait datafusion::prelude::Sub
1.0.0 · source · pub trait Sub<Rhs = Self> {
type Output;
// Required method
fn sub(self, rhs: Rhs) -> Self::Output;
}
Expand description
The subtraction operator -
.
Note that Rhs
is Self
by default, but this is not mandatory. For
example, std::time::SystemTime
implements Sub<Duration>
, which permits
operations of the form SystemTime = SystemTime - Duration
.
§Examples
§Sub
tractable points
use std::ops::Sub;
#[derive(Debug, Copy, Clone, PartialEq)]
struct Point {
x: i32,
y: i32,
}
impl Sub for Point {
type Output = Self;
fn sub(self, other: Self) -> Self::Output {
Self {
x: self.x - other.x,
y: self.y - other.y,
}
}
}
assert_eq!(Point { x: 3, y: 3 } - Point { x: 2, y: 3 },
Point { x: 1, y: 0 });
§Implementing Sub
with generics
Here is an example of the same Point
struct implementing the Sub
trait
using generics.
use std::ops::Sub;
#[derive(Debug, PartialEq)]
struct Point<T> {
x: T,
y: T,
}
// Notice that the implementation uses the associated type `Output`.
impl<T: Sub<Output = T>> Sub for Point<T> {
type Output = Self;
fn sub(self, other: Self) -> Self::Output {
Point {
x: self.x - other.x,
y: self.y - other.y,
}
}
}
assert_eq!(Point { x: 2, y: 3 } - Point { x: 1, y: 0 },
Point { x: 1, y: 3 });
Required Associated Types§
Required Methods§
Implementors§
1.74.0 · source§impl Sub for Saturating<i8>
impl Sub for Saturating<i8>
type Output = Saturating<i8>
1.74.0 · source§impl Sub for Saturating<i16>
impl Sub for Saturating<i16>
type Output = Saturating<i16>
1.74.0 · source§impl Sub for Saturating<i32>
impl Sub for Saturating<i32>
type Output = Saturating<i32>
1.74.0 · source§impl Sub for Saturating<i64>
impl Sub for Saturating<i64>
type Output = Saturating<i64>
1.74.0 · source§impl Sub for Saturating<i128>
impl Sub for Saturating<i128>
type Output = Saturating<i128>
1.74.0 · source§impl Sub for Saturating<isize>
impl Sub for Saturating<isize>
type Output = Saturating<isize>
1.74.0 · source§impl Sub for Saturating<u8>
impl Sub for Saturating<u8>
type Output = Saturating<u8>
1.74.0 · source§impl Sub for Saturating<u16>
impl Sub for Saturating<u16>
type Output = Saturating<u16>
1.74.0 · source§impl Sub for Saturating<u32>
impl Sub for Saturating<u32>
type Output = Saturating<u32>
1.74.0 · source§impl Sub for Saturating<u64>
impl Sub for Saturating<u64>
type Output = Saturating<u64>
1.74.0 · source§impl Sub for Saturating<u128>
impl Sub for Saturating<u128>
type Output = Saturating<u128>
1.74.0 · source§impl Sub for Saturating<usize>
impl Sub for Saturating<usize>
type Output = Saturating<usize>
source§impl Sub for NaiveDate
impl Sub for NaiveDate
Subtracts another NaiveDate
from the current date.
Returns a TimeDelta
of integral numbers.
This does not overflow or underflow at all,
as all possible output fits in the range of TimeDelta
.
The implementation is a wrapper around
NaiveDate::signed_duration_since
.
§Example
use chrono::{TimeDelta, NaiveDate};
let from_ymd = |y, m, d| NaiveDate::from_ymd_opt(y, m, d).unwrap();
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2014, 1, 1), TimeDelta::zero());
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 12, 31), TimeDelta::days(1));
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2014, 1, 2), TimeDelta::days(-1));
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 9, 23), TimeDelta::days(100));
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 1, 1), TimeDelta::days(365));
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2010, 1, 1), TimeDelta::days(365*4 + 1));
assert_eq!(from_ymd(2014, 1, 1) - from_ymd(1614, 1, 1), TimeDelta::days(365*400 + 97));
source§impl Sub for NaiveDateTime
impl Sub for NaiveDateTime
Subtracts another NaiveDateTime
from the current date and time.
This does not overflow or underflow at all.
As a part of Chrono’s leap second handling,
the subtraction assumes that there is no leap second ever,
except when any of the NaiveDateTime
s themselves represents a leap second
in which case the assumption becomes that
there are exactly one (or two) leap second(s) ever.
The implementation is a wrapper around NaiveDateTime::signed_duration_since
.
§Example
use chrono::{TimeDelta, NaiveDate};
let from_ymd = |y, m, d| NaiveDate::from_ymd_opt(y, m, d).unwrap();
let d = from_ymd(2016, 7, 8);
assert_eq!(d.and_hms_opt(3, 5, 7).unwrap() - d.and_hms_opt(2, 4, 6).unwrap(), TimeDelta::seconds(3600 + 60 + 1));
// July 8 is 190th day in the year 2016
let d0 = from_ymd(2016, 1, 1);
assert_eq!(d.and_hms_milli_opt(0, 7, 6, 500).unwrap() - d0.and_hms_opt(0, 0, 0).unwrap(),
TimeDelta::seconds(189 * 86_400 + 7 * 60 + 6) + TimeDelta::milliseconds(500));
Leap seconds are handled, but the subtraction assumes that no other leap seconds happened.
let leap = from_ymd(2015, 6, 30).and_hms_milli_opt(23, 59, 59, 1_500).unwrap();
assert_eq!(leap - from_ymd(2015, 6, 30).and_hms_opt(23, 0, 0).unwrap(),
TimeDelta::seconds(3600) + TimeDelta::milliseconds(500));
assert_eq!(from_ymd(2015, 7, 1).and_hms_opt(1, 0, 0).unwrap() - leap,
TimeDelta::seconds(3600) - TimeDelta::milliseconds(500));
source§impl Sub for NaiveTime
impl Sub for NaiveTime
Subtracts another NaiveTime
from the current time.
Returns a TimeDelta
within +/- 1 day.
This does not overflow or underflow at all.
As a part of Chrono’s leap second handling,
the subtraction assumes that there is no leap second ever,
except when any of the NaiveTime
s themselves represents a leap second
in which case the assumption becomes that
there are exactly one (or two) leap second(s) ever.
The implementation is a wrapper around
NaiveTime::signed_duration_since
.
§Example
use chrono::{TimeDelta, NaiveTime};
let from_hmsm = |h, m, s, milli| { NaiveTime::from_hms_milli_opt(h, m, s, milli).unwrap() };
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(3, 5, 7, 900), TimeDelta::zero());
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(3, 5, 7, 875), TimeDelta::milliseconds(25));
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(3, 5, 6, 925), TimeDelta::milliseconds(975));
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(3, 5, 0, 900), TimeDelta::seconds(7));
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(3, 0, 7, 900), TimeDelta::seconds(5 * 60));
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(0, 5, 7, 900), TimeDelta::seconds(3 * 3600));
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(4, 5, 7, 900), TimeDelta::seconds(-3600));
assert_eq!(from_hmsm(3, 5, 7, 900) - from_hmsm(2, 4, 6, 800),
TimeDelta::seconds(3600 + 60 + 1) + TimeDelta::milliseconds(100));
Leap seconds are handled, but the subtraction assumes that there were no other leap seconds happened.
assert_eq!(from_hmsm(3, 0, 59, 1_000) - from_hmsm(3, 0, 59, 0), TimeDelta::seconds(1));
assert_eq!(from_hmsm(3, 0, 59, 1_500) - from_hmsm(3, 0, 59, 0),
TimeDelta::milliseconds(1500));
assert_eq!(from_hmsm(3, 0, 59, 1_000) - from_hmsm(3, 0, 0, 0), TimeDelta::seconds(60));
assert_eq!(from_hmsm(3, 0, 0, 0) - from_hmsm(2, 59, 59, 1_000), TimeDelta::seconds(1));
assert_eq!(from_hmsm(3, 0, 59, 1_000) - from_hmsm(2, 59, 59, 1_000),
TimeDelta::seconds(61));
1.74.0 · source§impl Sub<&Saturating<i8>> for &Saturating<i8>
impl Sub<&Saturating<i8>> for &Saturating<i8>
1.74.0 · source§impl Sub<&Saturating<i8>> for Saturating<i8>
impl Sub<&Saturating<i8>> for Saturating<i8>
1.74.0 · source§impl Sub<&Saturating<i16>> for &Saturating<i16>
impl Sub<&Saturating<i16>> for &Saturating<i16>
1.74.0 · source§impl Sub<&Saturating<i16>> for Saturating<i16>
impl Sub<&Saturating<i16>> for Saturating<i16>
1.74.0 · source§impl Sub<&Saturating<i32>> for &Saturating<i32>
impl Sub<&Saturating<i32>> for &Saturating<i32>
1.74.0 · source§impl Sub<&Saturating<i32>> for Saturating<i32>
impl Sub<&Saturating<i32>> for Saturating<i32>
1.74.0 · source§impl Sub<&Saturating<i64>> for &Saturating<i64>
impl Sub<&Saturating<i64>> for &Saturating<i64>
1.74.0 · source§impl Sub<&Saturating<i64>> for Saturating<i64>
impl Sub<&Saturating<i64>> for Saturating<i64>
1.74.0 · source§impl Sub<&Saturating<i128>> for &Saturating<i128>
impl Sub<&Saturating<i128>> for &Saturating<i128>
1.74.0 · source§impl Sub<&Saturating<i128>> for Saturating<i128>
impl Sub<&Saturating<i128>> for Saturating<i128>
1.74.0 · source§impl Sub<&Saturating<isize>> for &Saturating<isize>
impl Sub<&Saturating<isize>> for &Saturating<isize>
1.74.0 · source§impl Sub<&Saturating<isize>> for Saturating<isize>
impl Sub<&Saturating<isize>> for Saturating<isize>
1.74.0 · source§impl Sub<&Saturating<u8>> for &Saturating<u8>
impl Sub<&Saturating<u8>> for &Saturating<u8>
1.74.0 · source§impl Sub<&Saturating<u8>> for Saturating<u8>
impl Sub<&Saturating<u8>> for Saturating<u8>
1.74.0 · source§impl Sub<&Saturating<u16>> for &Saturating<u16>
impl Sub<&Saturating<u16>> for &Saturating<u16>
1.74.0 · source§impl Sub<&Saturating<u16>> for Saturating<u16>
impl Sub<&Saturating<u16>> for Saturating<u16>
1.74.0 · source§impl Sub<&Saturating<u32>> for &Saturating<u32>
impl Sub<&Saturating<u32>> for &Saturating<u32>
1.74.0 · source§impl Sub<&Saturating<u32>> for Saturating<u32>
impl Sub<&Saturating<u32>> for Saturating<u32>
1.74.0 · source§impl Sub<&Saturating<u64>> for &Saturating<u64>
impl Sub<&Saturating<u64>> for &Saturating<u64>
1.74.0 · source§impl Sub<&Saturating<u64>> for Saturating<u64>
impl Sub<&Saturating<u64>> for Saturating<u64>
1.74.0 · source§impl Sub<&Saturating<u128>> for &Saturating<u128>
impl Sub<&Saturating<u128>> for &Saturating<u128>
1.74.0 · source§impl Sub<&Saturating<u128>> for Saturating<u128>
impl Sub<&Saturating<u128>> for Saturating<u128>
1.74.0 · source§impl Sub<&Saturating<usize>> for &Saturating<usize>
impl Sub<&Saturating<usize>> for &Saturating<usize>
1.74.0 · source§impl Sub<&Saturating<usize>> for Saturating<usize>
impl Sub<&Saturating<usize>> for Saturating<usize>
1.8.0 · source§impl Sub<Duration> for SystemTime
impl Sub<Duration> for SystemTime
type Output = SystemTime
source§impl Sub<Duration> for NaiveDateTime
impl Sub<Duration> for NaiveDateTime
Subtract std::time::Duration
from NaiveDateTime
.
As a part of Chrono’s [leap second handling] the subtraction assumes that there is no leap
second ever, except when the NaiveDateTime
itself represents a leap second in which case
the assumption becomes that there is exactly a single leap second ever.
§Panics
Panics if the resulting date would be out of range.
Consider using NaiveDateTime::checked_sub_signed
to get an Option
instead.
type Output = NaiveDateTime
source§impl Sub<Duration> for NaiveTime
impl Sub<Duration> for NaiveTime
Subtract std::time::Duration
from NaiveTime
.
This wraps around and never overflows or underflows. In particular the subtraction ignores integral number of days.
source§impl Sub<Months> for NaiveDate
impl Sub<Months> for NaiveDate
Subtract Months
from NaiveDate
.
The result will be clamped to valid days in the resulting month, see checked_sub_months
for
details.
§Panics
Panics if the resulting date would be out of range.
Consider using NaiveDate::checked_sub_months
to get an Option
instead.
§Example
use chrono::{NaiveDate, Months};
let from_ymd = |y, m, d| NaiveDate::from_ymd_opt(y, m, d).unwrap();
assert_eq!(from_ymd(2014, 1, 1) - Months::new(11), from_ymd(2013, 2, 1));
assert_eq!(from_ymd(2014, 1, 1) - Months::new(12), from_ymd(2013, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - Months::new(13), from_ymd(2012, 12, 1));
source§impl Sub<Months> for NaiveDateTime
impl Sub<Months> for NaiveDateTime
Subtract Months
from NaiveDateTime
.
The result will be clamped to valid days in the resulting month, see
NaiveDateTime::checked_sub_months
for details.
§Panics
Panics if the resulting date would be out of range.
Consider using NaiveDateTime::checked_sub_months
to get an Option
instead.
§Example
use chrono::{Months, NaiveDate};
assert_eq!(
NaiveDate::from_ymd_opt(2014, 01, 01).unwrap().and_hms_opt(01, 00, 00).unwrap() - Months::new(11),
NaiveDate::from_ymd_opt(2013, 02, 01).unwrap().and_hms_opt(01, 00, 00).unwrap()
);
assert_eq!(
NaiveDate::from_ymd_opt(2014, 01, 01).unwrap().and_hms_opt(00, 02, 00).unwrap() - Months::new(12),
NaiveDate::from_ymd_opt(2013, 01, 01).unwrap().and_hms_opt(00, 02, 00).unwrap()
);
assert_eq!(
NaiveDate::from_ymd_opt(2014, 01, 01).unwrap().and_hms_opt(00, 00, 03).unwrap() - Months::new(13),
NaiveDate::from_ymd_opt(2012, 12, 01).unwrap().and_hms_opt(00, 00, 03).unwrap()
);
type Output = NaiveDateTime
source§impl Sub<Days> for NaiveDate
impl Sub<Days> for NaiveDate
Subtract Days
from NaiveDate
.
§Panics
Panics if the resulting date would be out of range.
Consider using NaiveDate::checked_sub_days
to get an Option
instead.
source§impl Sub<Days> for NaiveDateTime
impl Sub<Days> for NaiveDateTime
Subtract Days
from NaiveDateTime
.
§Panics
Panics if the resulting date would be out of range.
Consider using checked_sub_days
to get an Option
instead.
type Output = NaiveDateTime
source§impl Sub<FixedOffset> for NaiveDateTime
impl Sub<FixedOffset> for NaiveDateTime
Subtract FixedOffset
from NaiveDateTime
.
§Panics
Panics if the resulting date would be out of range.
Consider using checked_sub_offset
to get an Option
instead.
type Output = NaiveDateTime
source§impl Sub<FixedOffset> for NaiveTime
impl Sub<FixedOffset> for NaiveTime
Subtract FixedOffset
from NaiveTime
.
This wraps around and never overflows or underflows. In particular the subtraction ignores integral number of days.
source§impl Sub<TimeDelta> for NaiveDate
impl Sub<TimeDelta> for NaiveDate
Subtract TimeDelta
from NaiveDate
.
This discards the fractional days in TimeDelta
, rounding to the closest integral number of
days towards TimeDelta::zero()
.
It is the same as the addition with a negated TimeDelta
.
§Panics
Panics if the resulting date would be out of range.
Consider using NaiveDate::checked_sub_signed
to get an Option
instead.
§Example
use chrono::{TimeDelta, NaiveDate};
let from_ymd = |y, m, d| NaiveDate::from_ymd_opt(y, m, d).unwrap();
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::zero(), from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::seconds(86399), from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::seconds(-86399), from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(1), from_ymd(2013, 12, 31));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(-1), from_ymd(2014, 1, 2));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(364), from_ymd(2013, 1, 2));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(365*4 + 1), from_ymd(2010, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(365*400 + 97), from_ymd(1614, 1, 1));
source§impl Sub<TimeDelta> for NaiveDateTime
impl Sub<TimeDelta> for NaiveDateTime
Subtract TimeDelta
from NaiveDateTime
.
This is the same as the addition with a negated TimeDelta
.
As a part of Chrono’s leap second handling the subtraction assumes that there is no leap
second ever, except when the NaiveDateTime
itself represents a leap second in which case
the assumption becomes that there is exactly a single leap second ever.
§Panics
Panics if the resulting date would be out of range.
Consider using NaiveDateTime::checked_sub_signed
to get an Option
instead.
§Example
use chrono::{TimeDelta, NaiveDate};
let from_ymd = |y, m, d| NaiveDate::from_ymd_opt(y, m, d).unwrap();
let d = from_ymd(2016, 7, 8);
let hms = |h, m, s| d.and_hms_opt(h, m, s).unwrap();
assert_eq!(hms(3, 5, 7) - TimeDelta::zero(), hms(3, 5, 7));
assert_eq!(hms(3, 5, 7) - TimeDelta::seconds(1), hms(3, 5, 6));
assert_eq!(hms(3, 5, 7) - TimeDelta::seconds(-1), hms(3, 5, 8));
assert_eq!(hms(3, 5, 7) - TimeDelta::seconds(3600 + 60), hms(2, 4, 7));
assert_eq!(hms(3, 5, 7) - TimeDelta::seconds(86_400),
from_ymd(2016, 7, 7).and_hms_opt(3, 5, 7).unwrap());
assert_eq!(hms(3, 5, 7) - TimeDelta::days(365),
from_ymd(2015, 7, 9).and_hms_opt(3, 5, 7).unwrap());
let hmsm = |h, m, s, milli| d.and_hms_milli_opt(h, m, s, milli).unwrap();
assert_eq!(hmsm(3, 5, 7, 450) - TimeDelta::milliseconds(670), hmsm(3, 5, 6, 780));
Leap seconds are handled, but the subtraction assumes that it is the only leap second happened.
let leap = hmsm(3, 5, 59, 1_300);
assert_eq!(leap - TimeDelta::zero(), hmsm(3, 5, 59, 1_300));
assert_eq!(leap - TimeDelta::milliseconds(200), hmsm(3, 5, 59, 1_100));
assert_eq!(leap - TimeDelta::milliseconds(500), hmsm(3, 5, 59, 800));
assert_eq!(leap - TimeDelta::seconds(60), hmsm(3, 5, 0, 300));
assert_eq!(leap - TimeDelta::days(1),
from_ymd(2016, 7, 7).and_hms_milli_opt(3, 6, 0, 300).unwrap());
type Output = NaiveDateTime
source§impl Sub<TimeDelta> for NaiveTime
impl Sub<TimeDelta> for NaiveTime
Subtract TimeDelta
from NaiveTime
.
This wraps around and never overflows or underflows.
In particular the subtraction ignores integral number of days.
This is the same as addition with a negated TimeDelta
.
As a part of Chrono’s leap second handling, the subtraction assumes that there is no leap
second ever, except when the NaiveTime
itself represents a leap second in which case the
assumption becomes that there is exactly a single leap second ever.
§Example
use chrono::{TimeDelta, NaiveTime};
let from_hmsm = |h, m, s, milli| { NaiveTime::from_hms_milli_opt(h, m, s, milli).unwrap() };
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::zero(), from_hmsm(3, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::seconds(1), from_hmsm(3, 5, 6, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::seconds(60 + 5), from_hmsm(3, 4, 2, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::seconds(2*60*60 + 6*60), from_hmsm(0, 59, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::milliseconds(80), from_hmsm(3, 5, 6, 920));
assert_eq!(from_hmsm(3, 5, 7, 950) - TimeDelta::milliseconds(280), from_hmsm(3, 5, 7, 670));
The subtraction wraps around.
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::seconds(8*60*60), from_hmsm(19, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - TimeDelta::days(800), from_hmsm(3, 5, 7, 0));
Leap seconds are handled, but the subtraction assumes that it is the only leap second happened.
let leap = from_hmsm(3, 5, 59, 1_300);
assert_eq!(leap - TimeDelta::zero(), from_hmsm(3, 5, 59, 1_300));
assert_eq!(leap - TimeDelta::milliseconds(200), from_hmsm(3, 5, 59, 1_100));
assert_eq!(leap - TimeDelta::milliseconds(500), from_hmsm(3, 5, 59, 800));
assert_eq!(leap - TimeDelta::seconds(60), from_hmsm(3, 5, 0, 300));
assert_eq!(leap - TimeDelta::days(1), from_hmsm(3, 6, 0, 300));
1.74.0 · source§impl<'a> Sub<Saturating<i8>> for &'a Saturating<i8>
impl<'a> Sub<Saturating<i8>> for &'a Saturating<i8>
1.74.0 · source§impl<'a> Sub<Saturating<i16>> for &'a Saturating<i16>
impl<'a> Sub<Saturating<i16>> for &'a Saturating<i16>
1.74.0 · source§impl<'a> Sub<Saturating<i32>> for &'a Saturating<i32>
impl<'a> Sub<Saturating<i32>> for &'a Saturating<i32>
1.74.0 · source§impl<'a> Sub<Saturating<i64>> for &'a Saturating<i64>
impl<'a> Sub<Saturating<i64>> for &'a Saturating<i64>
1.74.0 · source§impl<'a> Sub<Saturating<i128>> for &'a Saturating<i128>
impl<'a> Sub<Saturating<i128>> for &'a Saturating<i128>
1.74.0 · source§impl<'a> Sub<Saturating<isize>> for &'a Saturating<isize>
impl<'a> Sub<Saturating<isize>> for &'a Saturating<isize>
1.74.0 · source§impl<'a> Sub<Saturating<u8>> for &'a Saturating<u8>
impl<'a> Sub<Saturating<u8>> for &'a Saturating<u8>
1.74.0 · source§impl<'a> Sub<Saturating<u16>> for &'a Saturating<u16>
impl<'a> Sub<Saturating<u16>> for &'a Saturating<u16>
1.74.0 · source§impl<'a> Sub<Saturating<u32>> for &'a Saturating<u32>
impl<'a> Sub<Saturating<u32>> for &'a Saturating<u32>
1.74.0 · source§impl<'a> Sub<Saturating<u64>> for &'a Saturating<u64>
impl<'a> Sub<Saturating<u64>> for &'a Saturating<u64>
1.74.0 · source§impl<'a> Sub<Saturating<u128>> for &'a Saturating<u128>
impl<'a> Sub<Saturating<u128>> for &'a Saturating<u128>
1.74.0 · source§impl<'a> Sub<Saturating<usize>> for &'a Saturating<usize>
impl<'a> Sub<Saturating<usize>> for &'a Saturating<usize>
§impl<T> Sub<T> for NotNan<T>where
T: Float,
impl<T> Sub<T> for NotNan<T>where
T: Float,
Subtracts a float directly.
Panics if the provided value is NaN or the computation results in NaN
source§impl<Tz> Sub<Duration> for DateTime<Tz>where
Tz: TimeZone,
impl<Tz> Sub<Duration> for DateTime<Tz>where
Tz: TimeZone,
Subtract std::time::Duration
from DateTime
.
As a part of Chrono’s [leap second handling] the subtraction assumes that there is no leap
second ever, except when the DateTime
itself represents a leap second in which case
the assumption becomes that there is exactly a single leap second ever.
§Panics
Panics if the resulting date would be out of range.
Consider using DateTime<Tz>::checked_sub_signed
to get an Option
instead.
source§impl<Tz> Sub<Months> for DateTime<Tz>where
Tz: TimeZone,
impl<Tz> Sub<Months> for DateTime<Tz>where
Tz: TimeZone,
Subtract Months
from DateTime
.
The result will be clamped to valid days in the resulting month, see
DateTime<Tz>::checked_sub_months
for details.
§Panics
Panics if:
- The resulting date would be out of range.
- The local time at the resulting date does not exist or is ambiguous, for example during a daylight saving time transition.
Strongly consider using DateTime<Tz>::checked_sub_months
to get an Option
instead.
source§impl<Tz> Sub<Days> for DateTime<Tz>where
Tz: TimeZone,
impl<Tz> Sub<Days> for DateTime<Tz>where
Tz: TimeZone,
Subtract Days
from DateTime
.
§Panics
Panics if:
- The resulting date would be out of range.
- The local time at the resulting date does not exist or is ambiguous, for example during a daylight saving time transition.
Strongly consider using DateTime<Tz>::checked_sub_days
to get an Option
instead.
source§impl<Tz> Sub<FixedOffset> for DateTime<Tz>where
Tz: TimeZone,
impl<Tz> Sub<FixedOffset> for DateTime<Tz>where
Tz: TimeZone,
Subtract FixedOffset
from the datetime value of DateTime
(offset remains unchanged).
§Panics
Panics if the resulting date would be out of range.
source§impl<Tz> Sub<TimeDelta> for DateTime<Tz>where
Tz: TimeZone,
impl<Tz> Sub<TimeDelta> for DateTime<Tz>where
Tz: TimeZone,
Subtract TimeDelta
from DateTime
.
This is the same as the addition with a negated TimeDelta
.
As a part of Chrono’s [leap second handling] the subtraction assumes that there is no leap
second ever, except when the DateTime
itself represents a leap second in which case
the assumption becomes that there is exactly a single leap second ever.
§Panics
Panics if the resulting date would be out of range.
Consider using DateTime<Tz>::checked_sub_signed
to get an Option
instead.
source§impl<Ul, Bl, Ur> Sub<Ur> for UInt<Ul, Bl>
impl<Ul, Bl, Ur> Sub<Ur> for UInt<Ul, Bl>
Subtracting unsigned integers. We just do our PrivateSub
and then Trim
the output.