Trait datafusion::prelude::Add

pub trait Add<Rhs = Self> {
    type Output;

    // Required method
    fn add(self, rhs: Rhs) -> Self::Output;
}

The addition operator +.

Note that Rhs is Self by default, but this is not mandatory. For example, std::time::SystemTime implements Add<Duration>, which permits operations of the form SystemTime = SystemTime + Duration.

Examples

Addable points

use std::ops::Add;

#[derive(Debug, Copy, Clone, PartialEq)]
struct Point {
    x: i32,
    y: i32,
}

impl Add for Point {
    type Output = Self;

    fn add(self, other: Self) -> Self {
        Self {
            x: self.x + other.x,
            y: self.y + other.y,
        }
    }
}

assert_eq!(Point { x: 1, y: 0 } + Point { x: 2, y: 3 },
           Point { x: 3, y: 3 });

Implementing Add with generics

Here is an example of the same Point struct implementing the Add trait using generics.

use std::ops::Add;

#[derive(Debug, Copy, Clone, PartialEq)]
struct Point<T> {
    x: T,
    y: T,
}

// Notice that the implementation uses the associated type `Output`.
impl<T: Add<Output = T>> Add for Point<T> {
    type Output = Self;

    fn add(self, other: Self) -> Self::Output {
        Self {
            x: self.x + other.x,
            y: self.y + other.y,
        }
    }
}

assert_eq!(Point { x: 1, y: 0 } + Point { x: 2, y: 3 },
           Point { x: 3, y: 3 });

Required Associated Types

type Output

The resulting type after applying the + operator.

Required Methods

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

Performs the + operation.

Example

assert_eq!(12 + 1, 13);

Implementors

impl Add for Expr

Support <expr> + <expr> fluent style

type Output = Expr

impl Add for f32

type Output = f32

impl Add for f64

type Output = f64

impl Add for i8

type Output = i8

impl Add for i16

type Output = i16

impl Add for i32

type Output = i32

impl Add for i64

type Output = i64

impl Add for i128

type Output = i128

impl Add for isize

type Output = isize

impl Add for u8

type Output = u8

impl Add for u16

type Output = u16

impl Add for u32

type Output = u32

impl Add for u64

type Output = u64

impl Add for u128

type Output = u128

impl Add for usize

type Output = usize

impl Add for i256

type Output = i256

impl Add for Assume

type Output = Assume

impl Add for Saturating<i8>

type Output = Saturating<i8>

impl Add for Saturating<i16>

type Output = Saturating<i16>

impl Add for Saturating<i32>

type Output = Saturating<i32>

impl Add for Saturating<i64>

type Output = Saturating<i64>

impl Add for Saturating<i128>

type Output = Saturating<i128>

impl Add for Saturating<isize>

type Output = Saturating<isize>

impl Add for Saturating<u8>

type Output = Saturating<u8>

impl Add for Saturating<u16>

type Output = Saturating<u16>

impl Add for Saturating<u32>

type Output = Saturating<u32>

impl Add for Saturating<u64>

type Output = Saturating<u64>

impl Add for Saturating<u128>

type Output = Saturating<u128>

impl Add for Saturating<usize>

type Output = Saturating<usize>

impl Add for Wrapping<i8>

type Output = Wrapping<i8>

impl Add for Wrapping<i16>

type Output = Wrapping<i16>

impl Add for Wrapping<i32>

type Output = Wrapping<i32>

impl Add for Wrapping<i64>

type Output = Wrapping<i64>

impl Add for Wrapping<i128>

type Output = Wrapping<i128>

impl Add for Wrapping<isize>

type Output = Wrapping<isize>

impl Add for Wrapping<u8>

type Output = Wrapping<u8>

impl Add for Wrapping<u16>

type Output = Wrapping<u16>

impl Add for Wrapping<u32>

type Output = Wrapping<u32>

impl Add for Wrapping<u64>

type Output = Wrapping<u64>

impl Add for Wrapping<u128>

type Output = Wrapping<u128>

impl Add for Wrapping<usize>

type Output = Wrapping<usize>

impl Add for Duration

type Output = Duration

impl Add for TimeDelta

type Output = TimeDelta

impl Add for bf16

type Output = bf16

impl Add for f16

type Output = f16

impl Add for BigInt

type Output = BigInt

impl Add for BigUint

type Output = BigUint

impl Add for ATerm

type Output = ATerm

impl Add<&f32> for &f32

type Output = <f32 as Add>::Output

impl Add<&f32> for f32

type Output = <f32 as Add>::Output

impl Add<&f64> for &f64

type Output = <f64 as Add>::Output

impl Add<&f64> for f64

type Output = <f64 as Add>::Output

impl Add<&i8> for &i8

type Output = <i8 as Add>::Output

impl Add<&i8> for &BigInt

type Output = BigInt

impl Add<&i8> for i8

type Output = <i8 as Add>::Output

impl Add<&i8> for BigInt

type Output = BigInt

impl Add<&i16> for &i16

type Output = <i16 as Add>::Output

impl Add<&i16> for &BigInt

type Output = BigInt

impl Add<&i16> for i16

type Output = <i16 as Add>::Output

impl Add<&i16> for BigInt

type Output = BigInt

impl Add<&i32> for &i32

type Output = <i32 as Add>::Output

impl Add<&i32> for &BigInt

type Output = BigInt

impl Add<&i32> for i32

type Output = <i32 as Add>::Output

impl Add<&i32> for BigInt

type Output = BigInt

impl Add<&i64> for &i64

type Output = <i64 as Add>::Output

impl Add<&i64> for &BigInt

type Output = BigInt

impl Add<&i64> for i64

type Output = <i64 as Add>::Output

impl Add<&i64> for BigInt

type Output = BigInt

impl Add<&i128> for &i128

type Output = <i128 as Add>::Output

impl Add<&i128> for &BigInt

type Output = BigInt

impl Add<&i128> for i128

type Output = <i128 as Add>::Output

impl Add<&i128> for BigInt

type Output = BigInt

impl Add<&isize> for &isize

type Output = <isize as Add>::Output

impl Add<&isize> for &BigInt

type Output = BigInt

impl Add<&isize> for isize

type Output = <isize as Add>::Output

impl Add<&isize> for BigInt

type Output = BigInt

impl Add<&str> for String

Implements the + operator for concatenating two strings.

This consumes the String on the left-hand side and re-uses its buffer (growing it if necessary). This is done to avoid allocating a new String and copying the entire contents on every operation, which would lead to O(n^2) running time when building an n-byte string by repeated concatenation.

The string on the right-hand side is only borrowed; its contents are copied into the returned String.

Examples

Concatenating two Strings takes the first by value and borrows the second:

let a = String::from("hello");
let b = String::from(" world");
let c = a + &b;
// `a` is moved and can no longer be used here.

If you want to keep using the first String, you can clone it and append to the clone instead:

let a = String::from("hello");
let b = String::from(" world");
let c = a.clone() + &b;
// `a` is still valid here.

Concatenating &str slices can be done by converting the first to a String:

let a = "hello";
let b = " world";
let c = a.to_string() + b;

type Output = String

impl Add<&u8> for &u8

type Output = <u8 as Add>::Output

impl Add<&u8> for &BigInt

type Output = BigInt

impl Add<&u8> for &BigUint

type Output = BigUint

impl Add<&u8> for u8

type Output = <u8 as Add>::Output

impl Add<&u8> for BigInt

type Output = BigInt

impl Add<&u8> for BigUint

type Output = BigUint

impl Add<&u16> for &u16

type Output = <u16 as Add>::Output

impl Add<&u16> for &BigInt

type Output = BigInt

impl Add<&u16> for &BigUint

type Output = BigUint

impl Add<&u16> for u16

type Output = <u16 as Add>::Output

impl Add<&u16> for BigInt

type Output = BigInt

impl Add<&u16> for BigUint

type Output = BigUint

impl Add<&u32> for &u32

type Output = <u32 as Add>::Output

impl Add<&u32> for &BigInt

type Output = BigInt

impl Add<&u32> for &BigUint

type Output = BigUint

impl Add<&u32> for u32

type Output = <u32 as Add>::Output

impl Add<&u32> for BigInt

type Output = BigInt

impl Add<&u32> for BigUint

type Output = BigUint

impl Add<&u64> for &u64

type Output = <u64 as Add>::Output

impl Add<&u64> for &BigInt

type Output = BigInt

impl Add<&u64> for &BigUint

type Output = BigUint

impl Add<&u64> for u64

type Output = <u64 as Add>::Output

impl Add<&u64> for BigInt

type Output = BigInt

impl Add<&u64> for BigUint

type Output = BigUint

impl Add<&u128> for &u128

type Output = <u128 as Add>::Output

impl Add<&u128> for &BigInt

type Output = BigInt

impl Add<&u128> for &BigUint

type Output = BigUint

impl Add<&u128> for u128

type Output = <u128 as Add>::Output

impl Add<&u128> for BigInt

type Output = BigInt

impl Add<&u128> for BigUint

type Output = BigUint

impl Add<&usize> for &usize

type Output = <usize as Add>::Output

impl Add<&usize> for &BigInt

type Output = BigInt

impl Add<&usize> for &BigUint

type Output = BigUint

impl Add<&usize> for usize

type Output = <usize as Add>::Output

impl Add<&usize> for BigInt

type Output = BigInt

impl Add<&usize> for BigUint

type Output = BigUint

impl Add<&Saturating<i8>> for &Saturating<i8>

type Output = <Saturating<i8> as Add>::Output

impl Add<&Saturating<i8>> for Saturating<i8>

type Output = <Saturating<i8> as Add>::Output

impl Add<&Saturating<i16>> for &Saturating<i16>

type Output = <Saturating<i16> as Add>::Output

impl Add<&Saturating<i16>> for Saturating<i16>

type Output = <Saturating<i16> as Add>::Output

impl Add<&Saturating<i32>> for &Saturating<i32>

type Output = <Saturating<i32> as Add>::Output

impl Add<&Saturating<i32>> for Saturating<i32>

type Output = <Saturating<i32> as Add>::Output

impl Add<&Saturating<i64>> for &Saturating<i64>

type Output = <Saturating<i64> as Add>::Output

impl Add<&Saturating<i64>> for Saturating<i64>

type Output = <Saturating<i64> as Add>::Output

impl Add<&Saturating<i128>> for &Saturating<i128>

type Output = <Saturating<i128> as Add>::Output

impl Add<&Saturating<i128>> for Saturating<i128>

type Output = <Saturating<i128> as Add>::Output

impl Add<&Saturating<isize>> for &Saturating<isize>

type Output = <Saturating<isize> as Add>::Output

impl Add<&Saturating<isize>> for Saturating<isize>

type Output = <Saturating<isize> as Add>::Output

impl Add<&Saturating<u8>> for &Saturating<u8>

type Output = <Saturating<u8> as Add>::Output

impl Add<&Saturating<u8>> for Saturating<u8>

type Output = <Saturating<u8> as Add>::Output

impl Add<&Saturating<u16>> for &Saturating<u16>

type Output = <Saturating<u16> as Add>::Output

impl Add<&Saturating<u16>> for Saturating<u16>

type Output = <Saturating<u16> as Add>::Output

impl Add<&Saturating<u32>> for &Saturating<u32>

type Output = <Saturating<u32> as Add>::Output

impl Add<&Saturating<u32>> for Saturating<u32>

type Output = <Saturating<u32> as Add>::Output

impl Add<&Saturating<u64>> for &Saturating<u64>

type Output = <Saturating<u64> as Add>::Output

impl Add<&Saturating<u64>> for Saturating<u64>

type Output = <Saturating<u64> as Add>::Output

impl Add<&Saturating<u128>> for &Saturating<u128>

type Output = <Saturating<u128> as Add>::Output

impl Add<&Saturating<u128>> for Saturating<u128>

type Output = <Saturating<u128> as Add>::Output

impl Add<&Saturating<usize>> for &Saturating<usize>

type Output = <Saturating<usize> as Add>::Output

impl Add<&Saturating<usize>> for Saturating<usize>

type Output = <Saturating<usize> as Add>::Output

impl Add<&Wrapping<i8>> for &Wrapping<i8>

type Output = <Wrapping<i8> as Add>::Output

impl Add<&Wrapping<i8>> for Wrapping<i8>

type Output = <Wrapping<i8> as Add>::Output

impl Add<&Wrapping<i16>> for &Wrapping<i16>

type Output = <Wrapping<i16> as Add>::Output

impl Add<&Wrapping<i16>> for Wrapping<i16>

type Output = <Wrapping<i16> as Add>::Output

impl Add<&Wrapping<i32>> for &Wrapping<i32>

type Output = <Wrapping<i32> as Add>::Output

impl Add<&Wrapping<i32>> for Wrapping<i32>

type Output = <Wrapping<i32> as Add>::Output

impl Add<&Wrapping<i64>> for &Wrapping<i64>

type Output = <Wrapping<i64> as Add>::Output

impl Add<&Wrapping<i64>> for Wrapping<i64>

type Output = <Wrapping<i64> as Add>::Output

impl Add<&Wrapping<i128>> for &Wrapping<i128>

type Output = <Wrapping<i128> as Add>::Output

impl Add<&Wrapping<i128>> for Wrapping<i128>

type Output = <Wrapping<i128> as Add>::Output

impl Add<&Wrapping<isize>> for &Wrapping<isize>

type Output = <Wrapping<isize> as Add>::Output

impl Add<&Wrapping<isize>> for Wrapping<isize>

type Output = <Wrapping<isize> as Add>::Output

impl Add<&Wrapping<u8>> for &Wrapping<u8>

type Output = <Wrapping<u8> as Add>::Output

impl Add<&Wrapping<u8>> for Wrapping<u8>

type Output = <Wrapping<u8> as Add>::Output

impl Add<&Wrapping<u16>> for &Wrapping<u16>

type Output = <Wrapping<u16> as Add>::Output

impl Add<&Wrapping<u16>> for Wrapping<u16>

type Output = <Wrapping<u16> as Add>::Output

impl Add<&Wrapping<u32>> for &Wrapping<u32>

type Output = <Wrapping<u32> as Add>::Output

impl Add<&Wrapping<u32>> for Wrapping<u32>

type Output = <Wrapping<u32> as Add>::Output

impl Add<&Wrapping<u64>> for &Wrapping<u64>

type Output = <Wrapping<u64> as Add>::Output

impl Add<&Wrapping<u64>> for Wrapping<u64>

type Output = <Wrapping<u64> as Add>::Output

impl Add<&Wrapping<u128>> for &Wrapping<u128>

type Output = <Wrapping<u128> as Add>::Output

impl Add<&Wrapping<u128>> for Wrapping<u128>

type Output = <Wrapping<u128> as Add>::Output

impl Add<&Wrapping<usize>> for &Wrapping<usize>

type Output = <Wrapping<usize> as Add>::Output

impl Add<&Wrapping<usize>> for Wrapping<usize>

type Output = <Wrapping<usize> as Add>::Output

impl Add<&bf16> for &bf16

type Output = <bf16 as Add>::Output

impl Add<&bf16> for bf16

type Output = <bf16 as Add>::Output

impl Add<&f16> for &f16

type Output = <f16 as Add>::Output

impl Add<&f16> for f16

type Output = <f16 as Add>::Output

impl Add<&BigInt> for &i8

type Output = BigInt

impl Add<&BigInt> for &i16

type Output = BigInt

impl Add<&BigInt> for &i32

type Output = BigInt

impl Add<&BigInt> for &i64

type Output = BigInt

impl Add<&BigInt> for &i128

type Output = BigInt

impl Add<&BigInt> for &isize

type Output = BigInt

impl Add<&BigInt> for &u8

type Output = BigInt

impl Add<&BigInt> for &u16

type Output = BigInt

impl Add<&BigInt> for &u32

type Output = BigInt

impl Add<&BigInt> for &u64

type Output = BigInt

impl Add<&BigInt> for &u128

type Output = BigInt

impl Add<&BigInt> for &usize

type Output = BigInt

impl Add<&BigInt> for &BigInt

type Output = BigInt

impl Add<&BigInt> for i8

type Output = BigInt

impl Add<&BigInt> for i16

type Output = BigInt

impl Add<&BigInt> for i32

type Output = BigInt

impl Add<&BigInt> for i64

type Output = BigInt

impl Add<&BigInt> for i128

type Output = BigInt

impl Add<&BigInt> for isize

type Output = BigInt

impl Add<&BigInt> for u8

type Output = BigInt

impl Add<&BigInt> for u16

type Output = BigInt

impl Add<&BigInt> for u32

type Output = BigInt

impl Add<&BigInt> for u64

type Output = BigInt

impl Add<&BigInt> for u128

type Output = BigInt

impl Add<&BigInt> for usize

type Output = BigInt

impl Add<&BigInt> for BigInt

type Output = BigInt

impl Add<&BigUint> for &u8

type Output = BigUint

impl Add<&BigUint> for &u16

type Output = BigUint

impl Add<&BigUint> for &u32

type Output = BigUint

impl Add<&BigUint> for &u64

type Output = BigUint

impl Add<&BigUint> for &u128

type Output = BigUint

impl Add<&BigUint> for &usize

type Output = BigUint

impl Add<&BigUint> for &BigUint

type Output = BigUint

impl Add<&BigUint> for u8

type Output = BigUint

impl Add<&BigUint> for u16

type Output = BigUint

impl Add<&BigUint> for u32

type Output = BigUint

impl Add<&BigUint> for u64

type Output = BigUint

impl Add<&BigUint> for u128

type Output = BigUint

impl Add<&BigUint> for usize

type Output = BigUint

impl Add<&BigUint> for BigUint

type Output = BigUint

impl Add<i8> for &BigInt

type Output = BigInt

impl Add<i8> for BigInt

type Output = BigInt

impl Add<i16> for &BigInt

type Output = BigInt

impl Add<i16> for BigInt

type Output = BigInt

impl Add<i32> for &BigInt

type Output = BigInt

impl Add<i32> for BigInt

type Output = BigInt

impl Add<i64> for &BigInt

type Output = BigInt

impl Add<i64> for BigInt

type Output = BigInt

impl Add<i128> for &BigInt

type Output = BigInt

impl Add<i128> for BigInt

type Output = BigInt

impl Add<isize> for &BigInt

type Output = BigInt

impl Add<isize> for BigInt

type Output = BigInt

impl Add<u8> for &BigInt

type Output = BigInt

impl Add<u8> for &BigUint

type Output = BigUint

impl Add<u8> for BigInt

type Output = BigInt

impl Add<u8> for BigUint

type Output = BigUint

impl Add<u16> for &BigInt

type Output = BigInt

impl Add<u16> for &BigUint

type Output = BigUint

impl Add<u16> for BigInt

type Output = BigInt

impl Add<u16> for BigUint

type Output = BigUint

impl Add<u32> for &BigInt

type Output = BigInt

impl Add<u32> for &BigUint

type Output = BigUint

impl Add<u32> for BigInt

type Output = BigInt

impl Add<u32> for BigUint

type Output = BigUint

impl Add<u64> for &BigInt

type Output = BigInt

impl Add<u64> for &BigUint

type Output = BigUint

impl Add<u64> for BigInt

type Output = BigInt

impl Add<u64> for BigUint

type Output = BigUint

impl Add<u128> for &BigInt

type Output = BigInt

impl Add<u128> for &BigUint

type Output = BigUint

impl Add<u128> for BigInt

type Output = BigInt

impl Add<u128> for BigUint

type Output = BigUint

impl Add<usize> for &BigInt

type Output = BigInt

impl Add<usize> for &BigUint

type Output = BigUint

impl Add<usize> for BigInt

type Output = BigInt

impl Add<usize> for BigUint

type Output = BigUint

impl Add<Duration> for std::time::Instant

type Output = Instant

impl Add<Duration> for SystemTime

type Output = SystemTime

impl Add<Duration> for NaiveDateTime

Add std::time::Duration to NaiveDateTime.

As a part of Chrono’s [leap second handling], the addition 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_add_signed to get an Option instead.

type Output = NaiveDateTime

impl Add<Duration> for NaiveTime

Add std::time::Duration to NaiveTime.

This wraps around and never overflows or underflows. In particular the addition ignores integral number of days.

type Output = NaiveTime

impl Add<Duration> for tokio::time::instant::Instant

type Output = Instant

impl Add<Months> for NaiveDate

Add Months to NaiveDate.

The result will be clamped to valid days in the resulting month, see checked_add_months for details.

Panics

Panics if the resulting date would be out of range. Consider using NaiveDate::checked_add_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(1), from_ymd(2014, 2, 1));
assert_eq!(from_ymd(2014, 1, 1) + Months::new(11), from_ymd(2014, 12, 1));
assert_eq!(from_ymd(2014, 1, 1) + Months::new(12), from_ymd(2015, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) + Months::new(13), from_ymd(2015, 2, 1));
assert_eq!(from_ymd(2014, 1, 31) + Months::new(1), from_ymd(2014, 2, 28));
assert_eq!(from_ymd(2020, 1, 31) + Months::new(1), from_ymd(2020, 2, 29));

type Output = NaiveDate

impl Add<Months> for NaiveDateTime

Add Months to NaiveDateTime.

The result will be clamped to valid days in the resulting month, see checked_add_months for details.

Panics

Panics if the resulting date would be out of range. Consider using checked_add_months to get an Option instead.

Example

use chrono::{Months, NaiveDate};

assert_eq!(
    NaiveDate::from_ymd_opt(2014, 1, 1).unwrap().and_hms_opt(1, 0, 0).unwrap() + Months::new(1),
    NaiveDate::from_ymd_opt(2014, 2, 1).unwrap().and_hms_opt(1, 0, 0).unwrap()
);
assert_eq!(
    NaiveDate::from_ymd_opt(2014, 1, 1).unwrap().and_hms_opt(0, 2, 0).unwrap() + Months::new(11),
    NaiveDate::from_ymd_opt(2014, 12, 1).unwrap().and_hms_opt(0, 2, 0).unwrap()
);
assert_eq!(
    NaiveDate::from_ymd_opt(2014, 1, 1).unwrap().and_hms_opt(0, 0, 3).unwrap() + Months::new(12),
    NaiveDate::from_ymd_opt(2015, 1, 1).unwrap().and_hms_opt(0, 0, 3).unwrap()
);
assert_eq!(
    NaiveDate::from_ymd_opt(2014, 1, 1).unwrap().and_hms_opt(0, 0, 4).unwrap() + Months::new(13),
    NaiveDate::from_ymd_opt(2015, 2, 1).unwrap().and_hms_opt(0, 0, 4).unwrap()
);
assert_eq!(
    NaiveDate::from_ymd_opt(2014, 1, 31).unwrap().and_hms_opt(0, 5, 0).unwrap() + Months::new(1),
    NaiveDate::from_ymd_opt(2014, 2, 28).unwrap().and_hms_opt(0, 5, 0).unwrap()
);
assert_eq!(
    NaiveDate::from_ymd_opt(2020, 1, 31).unwrap().and_hms_opt(6, 0, 0).unwrap() + Months::new(1),
    NaiveDate::from_ymd_opt(2020, 2, 29).unwrap().and_hms_opt(6, 0, 0).unwrap()
);

type Output = NaiveDateTime

impl Add<Days> for NaiveDate

Add Days to NaiveDate.

Panics

Panics if the resulting date would be out of range. Consider using NaiveDate::checked_add_days to get an Option instead.

type Output = NaiveDate

impl Add<Days> for NaiveDateTime

Add Days to NaiveDateTime.

Panics

Panics if the resulting date would be out of range. Consider using checked_add_days to get an Option instead.

type Output = NaiveDateTime

impl Add<FixedOffset> for NaiveDateTime

Add FixedOffset to NaiveDateTime.

Panics

Panics if the resulting date would be out of range. Consider using checked_add_offset to get an Option instead.

type Output = NaiveDateTime

impl Add<FixedOffset> for NaiveTime

Add FixedOffset to NaiveTime.

This wraps around and never overflows or underflows. In particular the addition ignores integral number of days.

type Output = NaiveTime

impl Add<TimeDelta> for NaiveDate

Add TimeDelta to NaiveDate.

This discards the fractional days in TimeDelta, rounding to the closest integral number of days towards TimeDelta::zero().

Panics

Panics if the resulting date would be out of range. Consider using NaiveDate::checked_add_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(2014, 1, 2));
assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(-1),           from_ymd(2013, 12, 31));
assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(364),          from_ymd(2014, 12, 31));
assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(365*4 + 1),    from_ymd(2018, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(365*400 + 97), from_ymd(2414, 1, 1));

type Output = NaiveDate

impl Add<TimeDelta> for NaiveDateTime

Add TimeDelta to NaiveDateTime.

As a part of Chrono’s leap second handling, the addition 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_add_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, 8));
assert_eq!(hms(3, 5, 7) + TimeDelta::seconds(-1),        hms(3, 5, 6));
assert_eq!(hms(3, 5, 7) + TimeDelta::seconds(3600 + 60), hms(4, 6, 7));
assert_eq!(hms(3, 5, 7) + TimeDelta::seconds(86_400),
           from_ymd(2016, 7, 9).and_hms_opt(3, 5, 7).unwrap());
assert_eq!(hms(3, 5, 7) + TimeDelta::days(365),
           from_ymd(2017, 7, 8).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, 980) + TimeDelta::milliseconds(450), hmsm(3, 5, 8, 430));

Leap seconds are handled, but the addition 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(-500), hmsm(3, 5, 59, 800));
assert_eq!(leap + TimeDelta::milliseconds(500),  hmsm(3, 5, 59, 1_800));
assert_eq!(leap + TimeDelta::milliseconds(800),  hmsm(3, 6, 0, 100));
assert_eq!(leap + TimeDelta::seconds(10),        hmsm(3, 6, 9, 300));
assert_eq!(leap + TimeDelta::seconds(-10),       hmsm(3, 5, 50, 300));
assert_eq!(leap + TimeDelta::days(1),
           from_ymd(2016, 7, 9).and_hms_milli_opt(3, 5, 59, 300).unwrap());

type Output = NaiveDateTime

impl Add<TimeDelta> for NaiveTime

Add TimeDelta to NaiveTime.

This wraps around and never overflows or underflows. In particular the addition ignores integral number of days.

As a part of Chrono’s leap second handling, the addition 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, 8, 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 + 4),         from_hmsm(3, 6, 11, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + TimeDelta::seconds(7*60*60 - 6*60), from_hmsm(9, 59, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + TimeDelta::milliseconds(80),        from_hmsm(3, 5, 7, 80));
assert_eq!(from_hmsm(3, 5, 7, 950) + TimeDelta::milliseconds(280),     from_hmsm(3, 5, 8, 230));
assert_eq!(from_hmsm(3, 5, 7, 950) + TimeDelta::milliseconds(-980),    from_hmsm(3, 5, 6, 970));

The addition wraps around.

assert_eq!(from_hmsm(3, 5, 7, 0) + TimeDelta::seconds(22*60*60), from_hmsm(1, 5, 7, 0));
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 addition 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(-500), from_hmsm(3, 5, 59, 800));
assert_eq!(leap + TimeDelta::milliseconds(500),  from_hmsm(3, 5, 59, 1_800));
assert_eq!(leap + TimeDelta::milliseconds(800),  from_hmsm(3, 6, 0, 100));
assert_eq!(leap + TimeDelta::seconds(10),        from_hmsm(3, 6, 9, 300));
assert_eq!(leap + TimeDelta::seconds(-10),       from_hmsm(3, 5, 50, 300));
assert_eq!(leap + TimeDelta::days(1),            from_hmsm(3, 5, 59, 300));

type Output = NaiveTime

impl Add<bf16> for &bf16

type Output = <bf16 as Add>::Output

impl Add<f16> for &f16

type Output = <f16 as Add>::Output

impl Add<BigInt> for &i8

type Output = BigInt

impl Add<BigInt> for &i16

type Output = BigInt

impl Add<BigInt> for &i32

type Output = BigInt

impl Add<BigInt> for &i64

type Output = BigInt

impl Add<BigInt> for &i128

type Output = BigInt

impl Add<BigInt> for &isize

type Output = BigInt

impl Add<BigInt> for &u8

type Output = BigInt

impl Add<BigInt> for &u16

type Output = BigInt

impl Add<BigInt> for &u32

type Output = BigInt

impl Add<BigInt> for &u64

type Output = BigInt

impl Add<BigInt> for &u128

type Output = BigInt

impl Add<BigInt> for &usize

type Output = BigInt

impl Add<BigInt> for &BigInt

type Output = BigInt

impl Add<BigInt> for i8

type Output = BigInt

impl Add<BigInt> for i16

type Output = BigInt

impl Add<BigInt> for i32

type Output = BigInt

impl Add<BigInt> for i64

type Output = BigInt

impl Add<BigInt> for i128

type Output = BigInt

impl Add<BigInt> for isize

type Output = BigInt

impl Add<BigInt> for u8

type Output = BigInt

impl Add<BigInt> for u16

type Output = BigInt

impl Add<BigInt> for u32

type Output = BigInt

impl Add<BigInt> for u64

type Output = BigInt

impl Add<BigInt> for u128

type Output = BigInt

impl Add<BigInt> for usize

type Output = BigInt

impl Add<BigUint> for &u8

type Output = BigUint

impl Add<BigUint> for &u16

type Output = BigUint

impl Add<BigUint> for &u32

type Output = BigUint

impl Add<BigUint> for &u64

type Output = BigUint

impl Add<BigUint> for &u128

type Output = BigUint

impl Add<BigUint> for &usize

type Output = BigUint

impl Add<BigUint> for &BigUint

type Output = BigUint

impl Add<BigUint> for u8

type Output = BigUint

impl Add<BigUint> for u16

type Output = BigUint

impl Add<BigUint> for u32

type Output = BigUint

impl Add<BigUint> for u64

type Output = BigUint

impl Add<BigUint> for u128

type Output = BigUint

impl Add<BigUint> for usize

type Output = BigUint

impl Add<Complex<f32>> for f32

type Output = Complex<f32>

impl Add<Complex<f64>> for f64

type Output = Complex<f64>

impl Add<Complex<i8>> for i8

type Output = Complex<i8>

impl Add<Complex<i16>> for i16

type Output = Complex<i16>

impl Add<Complex<i32>> for i32

type Output = Complex<i32>

impl Add<Complex<i64>> for i64

type Output = Complex<i64>

impl Add<Complex<i128>> for i128

type Output = Complex<i128>

impl Add<Complex<isize>> for isize

type Output = Complex<isize>

impl Add<Complex<u8>> for u8

type Output = Complex<u8>

impl Add<Complex<u16>> for u16

type Output = Complex<u16>

impl Add<Complex<u32>> for u32

type Output = Complex<u32>

impl Add<Complex<u64>> for u64

type Output = Complex<u64>

impl Add<Complex<u128>> for u128

type Output = Complex<u128>

impl Add<Complex<usize>> for usize

type Output = Complex<usize>

impl Add<B0> for UTerm

UTerm + B0 = UTerm

type Output = UTerm

impl Add<B1> for UTerm

UTerm + B1 = UInt<UTerm, B1>

type Output = UInt<UTerm, B1>

impl<'a> Add for Cow<'a, str>

type Output = Cow<'a, str>

impl<'a> Add<&'a str> for Cow<'a, str>

type Output = Cow<'a, str>

impl<'a> Add<&'a i256> for i256

type Output = i256

impl<'a> Add<&'a Complex<f32>> for f32

type Output = Complex<f32>

impl<'a> Add<&'a Complex<f64>> for f64

type Output = Complex<f64>

impl<'a> Add<&'a Complex<i8>> for i8

type Output = Complex<i8>

impl<'a> Add<&'a Complex<i16>> for i16

type Output = Complex<i16>

impl<'a> Add<&'a Complex<i32>> for i32

type Output = Complex<i32>

impl<'a> Add<&'a Complex<i64>> for i64

type Output = Complex<i64>

impl<'a> Add<&'a Complex<i128>> for i128

type Output = Complex<i128>

impl<'a> Add<&'a Complex<isize>> for isize

type Output = Complex<isize>

impl<'a> Add<&'a Complex<u8>> for u8

type Output = Complex<u8>

impl<'a> Add<&'a Complex<u16>> for u16

type Output = Complex<u16>

impl<'a> Add<&'a Complex<u32>> for u32

type Output = Complex<u32>

impl<'a> Add<&'a Complex<u64>> for u64

type Output = Complex<u64>

impl<'a> Add<&'a Complex<u128>> for u128

type Output = Complex<u128>

impl<'a> Add<&'a Complex<usize>> for usize

type Output = Complex<usize>

impl<'a> Add<f32> for &'a f32

type Output = <f32 as Add>::Output

impl<'a> Add<f64> for &'a f64

type Output = <f64 as Add>::Output

impl<'a> Add<i8> for &'a i8

type Output = <i8 as Add>::Output

impl<'a> Add<i16> for &'a i16

type Output = <i16 as Add>::Output

impl<'a> Add<i32> for &'a i32

type Output = <i32 as Add>::Output

impl<'a> Add<i64> for &'a i64

type Output = <i64 as Add>::Output

impl<'a> Add<i128> for &'a i128

type Output = <i128 as Add>::Output

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

type Output = <isize as Add>::Output

impl<'a> Add<u8> for &'a u8

type Output = <u8 as Add>::Output

impl<'a> Add<u16> for &'a u16

type Output = <u16 as Add>::Output

impl<'a> Add<u32> for &'a u32

type Output = <u32 as Add>::Output

impl<'a> Add<u64> for &'a u64

type Output = <u64 as Add>::Output

impl<'a> Add<u128> for &'a u128

type Output = <u128 as Add>::Output

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

type Output = <usize as Add>::Output

impl<'a> Add<i256> for &'a i256

type Output = i256

impl<'a> Add<Saturating<i8>> for &'a Saturating<i8>

type Output = <Saturating<i8> as Add>::Output

impl<'a> Add<Saturating<i16>> for &'a Saturating<i16>

type Output = <Saturating<i16> as Add>::Output

impl<'a> Add<Saturating<i32>> for &'a Saturating<i32>

type Output = <Saturating<i32> as Add>::Output

impl<'a> Add<Saturating<i64>> for &'a Saturating<i64>

type Output = <Saturating<i64> as Add>::Output

impl<'a> Add<Saturating<i128>> for &'a Saturating<i128>

type Output = <Saturating<i128> as Add>::Output

impl<'a> Add<Saturating<isize>> for &'a Saturating<isize>

type Output = <Saturating<isize> as Add>::Output

impl<'a> Add<Saturating<u8>> for &'a Saturating<u8>

type Output = <Saturating<u8> as Add>::Output

impl<'a> Add<Saturating<u16>> for &'a Saturating<u16>

type Output = <Saturating<u16> as Add>::Output

impl<'a> Add<Saturating<u32>> for &'a Saturating<u32>

type Output = <Saturating<u32> as Add>::Output

impl<'a> Add<Saturating<u64>> for &'a Saturating<u64>

type Output = <Saturating<u64> as Add>::Output

impl<'a> Add<Saturating<u128>> for &'a Saturating<u128>

type Output = <Saturating<u128> as Add>::Output

impl<'a> Add<Saturating<usize>> for &'a Saturating<usize>

type Output = <Saturating<usize> as Add>::Output

impl<'a> Add<Wrapping<i8>> for &'a Wrapping<i8>

type Output = <Wrapping<i8> as Add>::Output

impl<'a> Add<Wrapping<i16>> for &'a Wrapping<i16>

type Output = <Wrapping<i16> as Add>::Output

impl<'a> Add<Wrapping<i32>> for &'a Wrapping<i32>

type Output = <Wrapping<i32> as Add>::Output

impl<'a> Add<Wrapping<i64>> for &'a Wrapping<i64>

type Output = <Wrapping<i64> as Add>::Output

impl<'a> Add<Wrapping<i128>> for &'a Wrapping<i128>

type Output = <Wrapping<i128> as Add>::Output

impl<'a> Add<Wrapping<isize>> for &'a Wrapping<isize>

type Output = <Wrapping<isize> as Add>::Output

impl<'a> Add<Wrapping<u8>> for &'a Wrapping<u8>

type Output = <Wrapping<u8> as Add>::Output

impl<'a> Add<Wrapping<u16>> for &'a Wrapping<u16>

type Output = <Wrapping<u16> as Add>::Output

impl<'a> Add<Wrapping<u32>> for &'a Wrapping<u32>

type Output = <Wrapping<u32> as Add>::Output

impl<'a> Add<Wrapping<u64>> for &'a Wrapping<u64>

type Output = <Wrapping<u64> as Add>::Output

impl<'a> Add<Wrapping<u128>> for &'a Wrapping<u128>

type Output = <Wrapping<u128> as Add>::Output

impl<'a> Add<Wrapping<usize>> for &'a Wrapping<usize>

type Output = <Wrapping<usize> as Add>::Output

impl<'a> Add<Complex<f32>> for &'a f32

type Output = Complex<f32>

impl<'a> Add<Complex<f64>> for &'a f64

type Output = Complex<f64>

impl<'a> Add<Complex<i8>> for &'a i8

type Output = Complex<i8>

impl<'a> Add<Complex<i16>> for &'a i16

type Output = Complex<i16>

impl<'a> Add<Complex<i32>> for &'a i32

type Output = Complex<i32>

impl<'a> Add<Complex<i64>> for &'a i64

type Output = Complex<i64>

impl<'a> Add<Complex<i128>> for &'a i128

type Output = Complex<i128>

impl<'a> Add<Complex<isize>> for &'a isize

type Output = Complex<isize>

impl<'a> Add<Complex<u8>> for &'a u8

type Output = Complex<u8>

impl<'a> Add<Complex<u16>> for &'a u16

type Output = Complex<u16>

impl<'a> Add<Complex<u32>> for &'a u32

type Output = Complex<u32>

impl<'a> Add<Complex<u64>> for &'a u64

type Output = Complex<u64>

impl<'a> Add<Complex<u128>> for &'a u128

type Output = Complex<u128>

impl<'a> Add<Complex<usize>> for &'a usize

type Output = Complex<usize>

impl<'a, 'b> Add<&'a Complex<f32>> for &'b f32

type Output = Complex<f32>

impl<'a, 'b> Add<&'a Complex<f64>> for &'b f64

type Output = Complex<f64>

impl<'a, 'b> Add<&'a Complex<i8>> for &'b i8

type Output = Complex<i8>

impl<'a, 'b> Add<&'a Complex<i16>> for &'b i16

type Output = Complex<i16>

impl<'a, 'b> Add<&'a Complex<i32>> for &'b i32

type Output = Complex<i32>

impl<'a, 'b> Add<&'a Complex<i64>> for &'b i64

type Output = Complex<i64>

impl<'a, 'b> Add<&'a Complex<i128>> for &'b i128

type Output = Complex<i128>

impl<'a, 'b> Add<&'a Complex<isize>> for &'b isize

type Output = Complex<isize>

impl<'a, 'b> Add<&'a Complex<u8>> for &'b u8

type Output = Complex<u8>

impl<'a, 'b> Add<&'a Complex<u16>> for &'b u16

type Output = Complex<u16>

impl<'a, 'b> Add<&'a Complex<u32>> for &'b u32

type Output = Complex<u32>

impl<'a, 'b> Add<&'a Complex<u64>> for &'b u64

type Output = Complex<u64>

impl<'a, 'b> Add<&'a Complex<u128>> for &'b u128

type Output = Complex<u128>

impl<'a, 'b> Add<&'a Complex<usize>> for &'b usize

type Output = Complex<usize>

impl<'a, 'b> Add<&'b i256> for &'a i256

type Output = i256

impl<'a, 'b, T> Add<&'b Complex<T>> for &'a Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<'a, 'b, T> Add<&'b Ratio<T>> for &'a Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<'a, 'b, T> Add<&'a T> for &'b Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<'a, 'b, T> Add<&'b T> for &'a Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<'a, T> Add for &'a OrderedFloat<T>

where &'a T: Add,

type Output = OrderedFloat<<&'a T as Add>::Output>

impl<'a, T> Add<&'a Complex<T>> for Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<'a, T> Add<&'a Ratio<T>> for Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<'a, T> Add<&'a OrderedFloat<T>> for OrderedFloat<T>

where T: Add<&'a T>,

type Output = OrderedFloat<<T as Add<&'a T>>::Output>

impl<'a, T> Add<&'a T> for &'a OrderedFloat<T>

where &'a T: Add,

type Output = OrderedFloat<<&'a T as Add>::Output>

impl<'a, T> Add<&'a T> for Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<'a, T> Add<&'a T> for Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<'a, T> Add<&'a T> for OrderedFloat<T>

where T: Add<&'a T>,

type Output = OrderedFloat<<T as Add<&'a T>>::Output>

impl<'a, T> Add<Complex<T>> for &'a Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<'a, T> Add<Ratio<T>> for &'a Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<'a, T> Add<OrderedFloat<T>> for &'a OrderedFloat<T>

where &'a T: Add<T>,

type Output = OrderedFloat<<&'a T as Add<T>>::Output>

impl<'a, T> Add<T> for &'a Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<'a, T> Add<T> for &'a Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<'a, T> Add<T> for &'a OrderedFloat<T>

where &'a T: Add<T>,

type Output = OrderedFloat<<&'a T as Add<T>>::Output>

impl<'lhs, 'rhs, T, const N: usize> Add<&'rhs Simd<T, N>> for &'lhs Simd<T, N>

where T: SimdElement, Simd<T, N>: Add<Output = Simd<T, N>>, LaneCount<N>: SupportedLaneCount,

type Output = Simd<T, N>

impl<Al, Vl, Ar, Vr> Add<TArr<Vr, Ar>> for TArr<Vl, Al>

where Al: Add<Ar>, Vl: Add<Vr>,

type Output = TArr<<Vl as Add<Vr>>::Output, <Al as Add<Ar>>::Output>

impl<I> Add<I> for Z0

where I: Integer,

Z0 + I = I

type Output = I

impl<T> Add for &NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add for Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<T> Add for Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<T> Add for NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add for OrderedFloat<T>

where T: Add,

type Output = OrderedFloat<<T as Add>::Output>

impl<T> Add<&NotNan<T>> for NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add<&T> for &NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add<&T> for NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add<NotNan<T>> for &NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add<T> for &NotNan<T>

where T: Float,

type Output = NotNan<T>

impl<T> Add<T> for Complex<T>

where T: Clone + Num,

type Output = Complex<T>

impl<T> Add<T> for Ratio<T>

where T: Clone + Integer,

type Output = Ratio<T>

impl<T> Add<T> for NotNan<T>

where T: Float,

Adds a float directly.

Panics if the provided value is NaN or the computation results in NaN

type Output = NotNan<T>

impl<T> Add<T> for OrderedFloat<T>

where T: Add,

type Output = OrderedFloat<<T as Add>::Output>

impl<T, const N: usize> Add<&Simd<T, N>> for Simd<T, N>

where T: SimdElement, Simd<T, N>: Add<Output = Simd<T, N>>, LaneCount<N>: SupportedLaneCount,

type Output = Simd<T, N>

impl<T, const N: usize> Add<Simd<T, N>> for &Simd<T, N>

where T: SimdElement, Simd<T, N>: Add<Output = Simd<T, N>>, LaneCount<N>: SupportedLaneCount,

type Output = Simd<T, N>

impl<Tz> Add<Duration> for DateTime<Tz>

where Tz: TimeZone,

Add std::time::Duration to DateTime.

As a part of Chrono’s [leap second handling], the addition 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 DateTime<Tz>::checked_add_signed to get an Option instead.

type Output = DateTime<Tz>

impl<Tz> Add<Months> for DateTime<Tz>

where Tz: TimeZone,

Add Months to DateTime.

The result will be clamped to valid days in the resulting month, see checked_add_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_add_months to get an Option instead.

type Output = DateTime<Tz>

impl<Tz> Add<Days> for DateTime<Tz>

where Tz: TimeZone,

Add Days to NaiveDateTime.

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.

type Output = DateTime<Tz>

impl<Tz> Add<FixedOffset> for DateTime<Tz>

where Tz: TimeZone,

Add FixedOffset to the datetime value of DateTime (offset remains unchanged).

Panics

Panics if the resulting date would be out of range.

type Output = DateTime<Tz>

impl<Tz> Add<TimeDelta> for Date<Tz>

where Tz: TimeZone,

type Output = Date<Tz>

impl<Tz> Add<TimeDelta> for DateTime<Tz>

where Tz: TimeZone,

Add TimeDelta to DateTime.

As a part of Chrono’s [leap second handling], the addition 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 DateTime<Tz>::checked_add_signed to get an Option instead.

type Output = DateTime<Tz>

impl<U> Add<B1> for UInt<U, B0>

where U: Unsigned,

UInt<U, B0> + B1 = UInt<U + B1>

type Output = UInt<U, B1>

impl<U> Add<B1> for UInt<U, B1>

where U: Unsigned + Add<B1>, <U as Add<B1>>::Output: Unsigned,

UInt<U, B1> + B1 = UInt<U + B1, B0>

type Output = UInt<<U as Add<B1>>::Output, B0>

impl<U> Add<Z0> for NInt<U>

where U: Unsigned + NonZero,

NInt + Z0 = NInt

type Output = NInt<U>

impl<U> Add<Z0> for PInt<U>

where U: Unsigned + NonZero,

PInt + Z0 = PInt

type Output = PInt<U>

impl<U> Add<U> for UTerm

where U: Unsigned,

UTerm + U = U

type Output = U

impl<U, B> Add<B0> for UInt<U, B>

where U: Unsigned, B: Bit,

U + B0 = U

type Output = UInt<U, B>

impl<U, B> Add<UTerm> for UInt<U, B>

where U: Unsigned, B: Bit,

UInt<U, B> + UTerm = UInt<U, B>

type Output = UInt<U, B>

impl<Ul, Ur> Add<NInt<Ur>> for NInt<Ul>

where Ul: Unsigned + NonZero + Add<Ur>, Ur: Unsigned + NonZero, <Ul as Add<Ur>>::Output: Unsigned + NonZero,

N(Ul) + N(Ur) = N(Ul + Ur)

type Output = NInt<<Ul as Add<Ur>>::Output>

impl<Ul, Ur> Add<NInt<Ur>> for PInt<Ul>

where Ul: Unsigned + NonZero + Cmp<Ur> + PrivateIntegerAdd<<Ul as Cmp<Ur>>::Output, Ur>, Ur: Unsigned + NonZero,

P(Ul) + N(Ur): We resolve this with our PrivateAdd

type Output = <Ul as PrivateIntegerAdd<<Ul as Cmp<Ur>>::Output, Ur>>::Output

impl<Ul, Ur> Add<PInt<Ur>> for NInt<Ul>

where Ul: Unsigned + NonZero, Ur: Unsigned + NonZero + Cmp<Ul> + PrivateIntegerAdd<<Ur as Cmp<Ul>>::Output, Ul>,

N(Ul) + P(Ur): We resolve this with our PrivateAdd

type Output = <Ur as PrivateIntegerAdd<<Ur as Cmp<Ul>>::Output, Ul>>::Output

impl<Ul, Ur> Add<PInt<Ur>> for PInt<Ul>

where Ul: Unsigned + NonZero + Add<Ur>, Ur: Unsigned + NonZero, <Ul as Add<Ur>>::Output: Unsigned + NonZero,

P(Ul) + P(Ur) = P(Ul + Ur)

type Output = PInt<<Ul as Add<Ur>>::Output>

impl<Ul, Ur> Add<UInt<Ur, B0>> for UInt<Ul, B0>

where Ul: Unsigned + Add<Ur>, Ur: Unsigned,

UInt<Ul, B0> + UInt<Ur, B0> = UInt<Ul + Ur, B0>

type Output = UInt<<Ul as Add<Ur>>::Output, B0>

impl<Ul, Ur> Add<UInt<Ur, B0>> for UInt<Ul, B1>

where Ul: Unsigned + Add<Ur>, Ur: Unsigned,

UInt<Ul, B1> + UInt<Ur, B0> = UInt<Ul + Ur, B1>

type Output = UInt<<Ul as Add<Ur>>::Output, B1>

impl<Ul, Ur> Add<UInt<Ur, B1>> for UInt<Ul, B0>

where Ul: Unsigned + Add<Ur>, Ur: Unsigned,

UInt<Ul, B0> + UInt<Ur, B1> = UInt<Ul + Ur, B1>

type Output = UInt<<Ul as Add<Ur>>::Output, B1>

impl<Ul, Ur> Add<UInt<Ur, B1>> for UInt<Ul, B1>

where Ul: Unsigned + Add<Ur>, Ur: Unsigned, <Ul as Add<Ur>>::Output: Add<B1>,

UInt<Ul, B1> + UInt<Ur, B1> = UInt<(Ul + Ur) + B1, B0>

type Output = UInt<<<Ul as Add<Ur>>::Output as Add<B1>>::Output, B0>

impl<const N: usize> Add for Simd<f32, N>

where f32: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<f32, N>

impl<const N: usize> Add for Simd<f64, N>

where f64: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<f64, N>

impl<const N: usize> Add for Simd<i8, N>

where i8: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<i8, N>

impl<const N: usize> Add for Simd<i16, N>

where i16: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<i16, N>

impl<const N: usize> Add for Simd<i32, N>

where i32: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<i32, N>

impl<const N: usize> Add for Simd<i64, N>

where i64: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<i64, N>

impl<const N: usize> Add for Simd<isize, N>

where isize: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<isize, N>

impl<const N: usize> Add for Simd<u8, N>

where u8: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<u8, N>

impl<const N: usize> Add for Simd<u16, N>

where u16: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<u16, N>

impl<const N: usize> Add for Simd<u32, N>

where u32: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<u32, N>

impl<const N: usize> Add for Simd<u64, N>

where u64: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<u64, N>

impl<const N: usize> Add for Simd<usize, N>

where usize: SimdElement, LaneCount<N>: SupportedLaneCount,

type Output = Simd<usize, N>