pub struct Duration { /* private fields */ }
Available on non-crate feature miri-test-libstd only.
Expand description

A Duration type to represent a span of time, typically used for system timeouts.

Each Duration is composed of a whole number of seconds and a fractional part represented in nanoseconds. If the underlying system does not support nanosecond-level precision, APIs binding a system timeout will typically round up the number of nanoseconds.

Durations implement many common traits, including Add, Sub, and other ops traits. It implements Default by returning a zero-length Duration.

Examples

use std::time::Duration;

let five_seconds = Duration::new(5, 0);
let five_seconds_and_five_nanos = five_seconds + Duration::new(0, 5);

assert_eq!(five_seconds_and_five_nanos.as_secs(), 5);
assert_eq!(five_seconds_and_five_nanos.subsec_nanos(), 5);

let ten_millis = Duration::from_millis(10);

Formatting Duration values

Duration intentionally does not have a Display impl, as there are a variety of ways to format spans of time for human readability. Duration provides a Debug impl that shows the full precision of the value.

The Debug output uses the non-ASCII “µs” suffix for microseconds. If your program output may appear in contexts that cannot rely on full Unicode compatibility, you may wish to format Duration objects yourself or use a crate to do so.

Implementations§

source§

impl Duration

source

pub const SECOND: Duration = Duration::from_secs(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one second.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::SECOND, Duration::from_secs(1));
source

pub const MILLISECOND: Duration = Duration::from_millis(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one millisecond.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::MILLISECOND, Duration::from_millis(1));
source

pub const MICROSECOND: Duration = Duration::from_micros(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one microsecond.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::MICROSECOND, Duration::from_micros(1));
source

pub const NANOSECOND: Duration = Duration::from_nanos(1)

🔬This is a nightly-only experimental API. (duration_constants)

The duration of one nanosecond.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::NANOSECOND, Duration::from_nanos(1));
1.53.0 · source

pub const ZERO: Duration = Duration::from_nanos(0)

A duration of zero time.

Examples
use std::time::Duration;

let duration = Duration::ZERO;
assert!(duration.is_zero());
assert_eq!(duration.as_nanos(), 0);
1.53.0 · source

pub const MAX: Duration = Duration::new(u64::MAX, NANOS_PER_SEC - 1)

The maximum duration.

May vary by platform as necessary. Must be able to contain the difference between two instances of Instant or two instances of SystemTime. This constraint gives it a value of about 584,942,417,355 years in practice, which is currently used on all platforms.

Examples
use std::time::Duration;

assert_eq!(Duration::MAX, Duration::new(u64::MAX, 1_000_000_000 - 1));
const: 1.58.0 · source

pub const fn new(secs: u64, nanos: u32) -> Duration

Creates a new Duration from the specified number of whole seconds and additional nanoseconds.

If the number of nanoseconds is greater than 1 billion (the number of nanoseconds in a second), then it will carry over into the seconds provided.

Panics

This constructor will panic if the carry from the nanoseconds overflows the seconds counter.

Examples
use std::time::Duration;

let five_seconds = Duration::new(5, 0);
const: 1.32.0 · source

pub const fn from_secs(secs: u64) -> Duration

Creates a new Duration from the specified number of whole seconds.

Examples
use std::time::Duration;

let duration = Duration::from_secs(5);

assert_eq!(5, duration.as_secs());
assert_eq!(0, duration.subsec_nanos());
const: 1.32.0 · source

pub const fn from_millis(millis: u64) -> Duration

Creates a new Duration from the specified number of milliseconds.

Examples
use std::time::Duration;

let duration = Duration::from_millis(2569);

assert_eq!(2, duration.as_secs());
assert_eq!(569_000_000, duration.subsec_nanos());
1.27.0 (const: 1.32.0) · source

pub const fn from_micros(micros: u64) -> Duration

Creates a new Duration from the specified number of microseconds.

Examples
use std::time::Duration;

let duration = Duration::from_micros(1_000_002);

assert_eq!(1, duration.as_secs());
assert_eq!(2000, duration.subsec_nanos());
1.27.0 (const: 1.32.0) · source

pub const fn from_nanos(nanos: u64) -> Duration

Creates a new Duration from the specified number of nanoseconds.

Examples
use std::time::Duration;

let duration = Duration::from_nanos(1_000_000_123);

assert_eq!(1, duration.as_secs());
assert_eq!(123, duration.subsec_nanos());
1.53.0 (const: 1.53.0) · source

pub const fn is_zero(&self) -> bool

Returns true if this Duration spans no time.

Examples
use std::time::Duration;

assert!(Duration::ZERO.is_zero());
assert!(Duration::new(0, 0).is_zero());
assert!(Duration::from_nanos(0).is_zero());
assert!(Duration::from_secs(0).is_zero());

assert!(!Duration::new(1, 1).is_zero());
assert!(!Duration::from_nanos(1).is_zero());
assert!(!Duration::from_secs(1).is_zero());
const: 1.32.0 · source

pub const fn as_secs(&self) -> u64

Returns the number of whole seconds contained by this Duration.

The returned value does not include the fractional (nanosecond) part of the duration, which can be obtained using subsec_nanos.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_secs(), 5);

To determine the total number of seconds represented by the Duration including the fractional part, use as_secs_f64 or as_secs_f32

1.27.0 (const: 1.32.0) · source

pub const fn subsec_millis(&self) -> u32

Returns the fractional part of this Duration, in whole milliseconds.

This method does not return the length of the duration when represented by milliseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one thousand).

Examples
use std::time::Duration;

let duration = Duration::from_millis(5432);
assert_eq!(duration.as_secs(), 5);
assert_eq!(duration.subsec_millis(), 432);
1.27.0 (const: 1.32.0) · source

pub const fn subsec_micros(&self) -> u32

Returns the fractional part of this Duration, in whole microseconds.

This method does not return the length of the duration when represented by microseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one million).

Examples
use std::time::Duration;

let duration = Duration::from_micros(1_234_567);
assert_eq!(duration.as_secs(), 1);
assert_eq!(duration.subsec_micros(), 234_567);
const: 1.32.0 · source

pub const fn subsec_nanos(&self) -> u32

Returns the fractional part of this Duration, in nanoseconds.

This method does not return the length of the duration when represented by nanoseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one billion).

Examples
use std::time::Duration;

let duration = Duration::from_millis(5010);
assert_eq!(duration.as_secs(), 5);
assert_eq!(duration.subsec_nanos(), 10_000_000);
1.33.0 (const: 1.33.0) · source

pub const fn as_millis(&self) -> u128

Returns the total number of whole milliseconds contained by this Duration.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_millis(), 5730);
1.33.0 (const: 1.33.0) · source

pub const fn as_micros(&self) -> u128

Returns the total number of whole microseconds contained by this Duration.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_micros(), 5730023);
1.33.0 (const: 1.33.0) · source

pub const fn as_nanos(&self) -> u128

Returns the total number of nanoseconds contained by this Duration.

Examples
use std::time::Duration;

let duration = Duration::new(5, 730023852);
assert_eq!(duration.as_nanos(), 5730023852);
1.16.0 (const: 1.58.0) · source

pub const fn checked_add(self, rhs: Duration) -> Option<Duration>

Checked Duration addition. Computes self + other, returning None if overflow occurred.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(0, 0).checked_add(Duration::new(0, 1)), Some(Duration::new(0, 1)));
assert_eq!(Duration::new(1, 0).checked_add(Duration::new(u64::MAX, 0)), None);
1.53.0 (const: 1.58.0) · source

pub const fn saturating_add(self, rhs: Duration) -> Duration

Saturating Duration addition. Computes self + other, returning Duration::MAX if overflow occurred.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::new(0, 0).saturating_add(Duration::new(0, 1)), Duration::new(0, 1));
assert_eq!(Duration::new(1, 0).saturating_add(Duration::new(u64::MAX, 0)), Duration::MAX);
1.16.0 (const: 1.58.0) · source

pub const fn checked_sub(self, rhs: Duration) -> Option<Duration>

Checked Duration subtraction. Computes self - other, returning None if the result would be negative or if overflow occurred.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(0, 1).checked_sub(Duration::new(0, 0)), Some(Duration::new(0, 1)));
assert_eq!(Duration::new(0, 0).checked_sub(Duration::new(0, 1)), None);
1.53.0 (const: 1.58.0) · source

pub const fn saturating_sub(self, rhs: Duration) -> Duration

Saturating Duration subtraction. Computes self - other, returning Duration::ZERO if the result would be negative or if overflow occurred.

Examples
use std::time::Duration;

assert_eq!(Duration::new(0, 1).saturating_sub(Duration::new(0, 0)), Duration::new(0, 1));
assert_eq!(Duration::new(0, 0).saturating_sub(Duration::new(0, 1)), Duration::ZERO);
1.16.0 (const: 1.58.0) · source

pub const fn checked_mul(self, rhs: u32) -> Option<Duration>

Checked Duration multiplication. Computes self * other, returning None if overflow occurred.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(0, 500_000_001).checked_mul(2), Some(Duration::new(1, 2)));
assert_eq!(Duration::new(u64::MAX - 1, 0).checked_mul(2), None);
1.53.0 (const: 1.58.0) · source

pub const fn saturating_mul(self, rhs: u32) -> Duration

Saturating Duration multiplication. Computes self * other, returning Duration::MAX if overflow occurred.

Examples
#![feature(duration_constants)]
use std::time::Duration;

assert_eq!(Duration::new(0, 500_000_001).saturating_mul(2), Duration::new(1, 2));
assert_eq!(Duration::new(u64::MAX - 1, 0).saturating_mul(2), Duration::MAX);
1.16.0 (const: 1.58.0) · source

pub const fn checked_div(self, rhs: u32) -> Option<Duration>

Checked Duration division. Computes self / other, returning None if other == 0.

Examples

Basic usage:

use std::time::Duration;

assert_eq!(Duration::new(2, 0).checked_div(2), Some(Duration::new(1, 0)));
assert_eq!(Duration::new(1, 0).checked_div(2), Some(Duration::new(0, 500_000_000)));
assert_eq!(Duration::new(2, 0).checked_div(0), None);
1.38.0 (const: unstable) · source

pub fn as_secs_f64(&self) -> f64

Returns the number of seconds contained by this Duration as f64.

The returned value does include the fractional (nanosecond) part of the duration.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.as_secs_f64(), 2.7);
1.38.0 (const: unstable) · source

pub fn as_secs_f32(&self) -> f32

Returns the number of seconds contained by this Duration as f32.

The returned value does include the fractional (nanosecond) part of the duration.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.as_secs_f32(), 2.7);
1.38.0 (const: unstable) · source

pub fn from_secs_f64(secs: f64) -> Duration

Creates a new Duration from the specified number of seconds represented as f64.

Panics

This constructor will panic if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::from_secs_f64(0.0);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f64(1e-20);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f64(4.2e-7);
assert_eq!(res, Duration::new(0, 420));
let res = Duration::from_secs_f64(2.7);
assert_eq!(res, Duration::new(2, 700_000_000));
let res = Duration::from_secs_f64(3e10);
assert_eq!(res, Duration::new(30_000_000_000, 0));
// subnormal float
let res = Duration::from_secs_f64(f64::from_bits(1));
assert_eq!(res, Duration::new(0, 0));
// conversion uses rounding
let res = Duration::from_secs_f64(0.999e-9);
assert_eq!(res, Duration::new(0, 1));
1.38.0 (const: unstable) · source

pub fn from_secs_f32(secs: f32) -> Duration

Creates a new Duration from the specified number of seconds represented as f32.

Panics

This constructor will panic if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::from_secs_f32(0.0);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f32(1e-20);
assert_eq!(res, Duration::new(0, 0));
let res = Duration::from_secs_f32(4.2e-7);
assert_eq!(res, Duration::new(0, 420));
let res = Duration::from_secs_f32(2.7);
assert_eq!(res, Duration::new(2, 700_000_048));
let res = Duration::from_secs_f32(3e10);
assert_eq!(res, Duration::new(30_000_001_024, 0));
// subnormal float
let res = Duration::from_secs_f32(f32::from_bits(1));
assert_eq!(res, Duration::new(0, 0));
// conversion uses rounding
let res = Duration::from_secs_f32(0.999e-9);
assert_eq!(res, Duration::new(0, 1));
1.38.0 (const: unstable) · source

pub fn mul_f64(self, rhs: f64) -> Duration

Multiplies Duration by f64.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.mul_f64(3.14), Duration::new(8, 478_000_000));
assert_eq!(dur.mul_f64(3.14e5), Duration::new(847_800, 0));
1.38.0 (const: unstable) · source

pub fn mul_f32(self, rhs: f32) -> Duration

Multiplies Duration by f32.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.mul_f32(3.14), Duration::new(8, 478_000_641));
assert_eq!(dur.mul_f32(3.14e5), Duration::new(847800, 0));
1.38.0 (const: unstable) · source

pub fn div_f64(self, rhs: f64) -> Duration

Divide Duration by f64.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
assert_eq!(dur.div_f64(3.14), Duration::new(0, 859_872_611));
assert_eq!(dur.div_f64(3.14e5), Duration::new(0, 8_599));
1.38.0 (const: unstable) · source

pub fn div_f32(self, rhs: f32) -> Duration

Divide Duration by f32.

Panics

This method will panic if result is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let dur = Duration::new(2, 700_000_000);
// note that due to rounding errors result is slightly
// different from 0.859_872_611
assert_eq!(dur.div_f32(3.14), Duration::new(0, 859_872_580));
assert_eq!(dur.div_f32(3.14e5), Duration::new(0, 8_599));
const: unstable · source

pub fn div_duration_f64(self, rhs: Duration) -> f64

🔬This is a nightly-only experimental API. (div_duration)

Divide Duration by Duration and return f64.

Examples
#![feature(div_duration)]
use std::time::Duration;

let dur1 = Duration::new(2, 700_000_000);
let dur2 = Duration::new(5, 400_000_000);
assert_eq!(dur1.div_duration_f64(dur2), 0.5);
const: unstable · source

pub fn div_duration_f32(self, rhs: Duration) -> f32

🔬This is a nightly-only experimental API. (div_duration)

Divide Duration by Duration and return f32.

Examples
#![feature(div_duration)]
use std::time::Duration;

let dur1 = Duration::new(2, 700_000_000);
let dur2 = Duration::new(5, 400_000_000);
assert_eq!(dur1.div_duration_f32(dur2), 0.5);
source§

impl Duration

1.66.0 (const: unstable) · source

pub fn try_from_secs_f32(secs: f32) -> Result<Duration, TryFromFloatSecsError>

The checked version of from_secs_f32.

This constructor will return an Err if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::try_from_secs_f32(0.0);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f32(1e-20);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f32(4.2e-7);
assert_eq!(res, Ok(Duration::new(0, 420)));
let res = Duration::try_from_secs_f32(2.7);
assert_eq!(res, Ok(Duration::new(2, 700_000_048)));
let res = Duration::try_from_secs_f32(3e10);
assert_eq!(res, Ok(Duration::new(30_000_001_024, 0)));
// subnormal float:
let res = Duration::try_from_secs_f32(f32::from_bits(1));
assert_eq!(res, Ok(Duration::new(0, 0)));

let res = Duration::try_from_secs_f32(-5.0);
assert!(res.is_err());
let res = Duration::try_from_secs_f32(f32::NAN);
assert!(res.is_err());
let res = Duration::try_from_secs_f32(2e19);
assert!(res.is_err());

// the conversion uses rounding with tie resolution to even
let res = Duration::try_from_secs_f32(0.999e-9);
assert_eq!(res, Ok(Duration::new(0, 1)));

// this float represents exactly 976562.5e-9
let val = f32::from_bits(0x3A80_0000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(0, 976_562)));

// this float represents exactly 2929687.5e-9
let val = f32::from_bits(0x3B40_0000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(0, 2_929_688)));

// this float represents exactly 1.000_976_562_5
let val = f32::from_bits(0x3F802000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(1, 976_562)));

// this float represents exactly 1.002_929_687_5
let val = f32::from_bits(0x3F806000);
let res = Duration::try_from_secs_f32(val);
assert_eq!(res, Ok(Duration::new(1, 2_929_688)));
1.66.0 (const: unstable) · source

pub fn try_from_secs_f64(secs: f64) -> Result<Duration, TryFromFloatSecsError>

The checked version of from_secs_f64.

This constructor will return an Err if secs is negative, overflows Duration or not finite.

Examples
use std::time::Duration;

let res = Duration::try_from_secs_f64(0.0);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f64(1e-20);
assert_eq!(res, Ok(Duration::new(0, 0)));
let res = Duration::try_from_secs_f64(4.2e-7);
assert_eq!(res, Ok(Duration::new(0, 420)));
let res = Duration::try_from_secs_f64(2.7);
assert_eq!(res, Ok(Duration::new(2, 700_000_000)));
let res = Duration::try_from_secs_f64(3e10);
assert_eq!(res, Ok(Duration::new(30_000_000_000, 0)));
// subnormal float
let res = Duration::try_from_secs_f64(f64::from_bits(1));
assert_eq!(res, Ok(Duration::new(0, 0)));

let res = Duration::try_from_secs_f64(-5.0);
assert!(res.is_err());
let res = Duration::try_from_secs_f64(f64::NAN);
assert!(res.is_err());
let res = Duration::try_from_secs_f64(2e19);
assert!(res.is_err());

// the conversion uses rounding with tie resolution to even
let res = Duration::try_from_secs_f64(0.999e-9);
assert_eq!(res, Ok(Duration::new(0, 1)));
let res = Duration::try_from_secs_f64(0.999_999_999_499);
assert_eq!(res, Ok(Duration::new(0, 999_999_999)));
let res = Duration::try_from_secs_f64(0.999_999_999_501);
assert_eq!(res, Ok(Duration::new(1, 0)));
let res = Duration::try_from_secs_f64(42.999_999_999_499);
assert_eq!(res, Ok(Duration::new(42, 999_999_999)));
let res = Duration::try_from_secs_f64(42.999_999_999_501);
assert_eq!(res, Ok(Duration::new(43, 0)));

// this float represents exactly 976562.5e-9
let val = f64::from_bits(0x3F50_0000_0000_0000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(0, 976_562)));

// this float represents exactly 2929687.5e-9
let val = f64::from_bits(0x3F68_0000_0000_0000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(0, 2_929_688)));

// this float represents exactly 1.000_976_562_5
let val = f64::from_bits(0x3FF0_0400_0000_0000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(1, 976_562)));

// this float represents exactly 1.002_929_687_5
let val = f64::from_bits(0x3_FF00_C000_0000_000);
let res = Duration::try_from_secs_f64(val);
assert_eq!(res, Ok(Duration::new(1, 2_929_688)));

Trait Implementations§

§

impl Add<Duration> for Date

§

type Output = Date

The resulting type after applying the + operator.
§

fn add(self, duration: Duration) -> <Date as Add<Duration>>::Output

Performs the + operation. Read more
source§

impl Add<Duration> for Duration

§

type Output = Duration

The resulting type after applying the + operator.
source§

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

Performs the + operation. Read more
§

impl Add<Duration> for Duration

§

type Output = Duration

The resulting type after applying the + operator.
§

fn add(self, std_duration: Duration) -> <Duration as Add<Duration>>::Output

Performs the + operation. Read more
§

impl Add<Duration> for Duration

§

type Output = Duration

The resulting type after applying the + operator.
§

fn add(self, rhs: Duration) -> <Duration as Add<Duration>>::Output

Performs the + operation. Read more
1.8.0 · source§

impl Add<Duration> for Instant

source§

fn add(self, other: Duration) -> Instant

Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See Instant::checked_add for a version without panic.

§

type Output = Instant

The resulting type after applying the + operator.
§

impl Add<Duration> for Instant

§

type Output = Instant

The resulting type after applying the + operator.
§

fn add(self, other: Duration) -> Instant

Performs the + operation. Read more
§

impl Add<Duration> for Instant

§

type Output = Instant

The resulting type after applying the + operator.
§

fn add(self, duration: Duration) -> <Instant as Add<Duration>>::Output

Performs the + operation. Read more
§

impl Add<Duration> for OffsetDateTime

§

type Output = OffsetDateTime

The resulting type after applying the + operator.
§

fn add(self, rhs: Duration) -> <OffsetDateTime as Add<Duration>>::Output

Performs the + operation. Read more
§

impl Add<Duration> for PrimitiveDateTime

§

type Output = PrimitiveDateTime

The resulting type after applying the + operator.
§

fn add(self, duration: Duration) -> <PrimitiveDateTime as Add<Duration>>::Output

Performs the + operation. Read more
1.8.0 · source§

impl Add<Duration> for SystemTime

source§

fn add(self, dur: Duration) -> SystemTime

Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See SystemTime::checked_add for a version without panic.

§

type Output = SystemTime

The resulting type after applying the + operator.
§

impl Add<Duration> for Time

§

fn add(self, duration: Duration) -> <Time as Add<Duration>>::Output

Add the sub-day time of the std::time::Duration to the Time. Wraps on overflow.

assert_eq!(time!(12:00) + 2.std_hours(), time!(14:00));
assert_eq!(time!(23:59:59) + 2.std_seconds(), time!(0:00:01));
§

type Output = Time

The resulting type after applying the + operator.
§

impl AddAssign<Duration> for Date

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
1.9.0 · source§

impl AddAssign<Duration> for Duration

source§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for Duration

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for Duration

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
1.9.0 · source§

impl AddAssign<Duration> for Instant

source§

fn add_assign(&mut self, other: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for Instant

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for Instant

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for OffsetDateTime

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for PrimitiveDateTime

§

fn add_assign(&mut self, duration: Duration)

Performs the += operation. Read more
1.9.0 · source§

impl AddAssign<Duration> for SystemTime

source§

fn add_assign(&mut self, other: Duration)

Performs the += operation. Read more
§

impl AddAssign<Duration> for Time

§

fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
source§

impl Clone for Duration

source§

fn clone(&self) -> Duration

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
1.27.0 · source§

impl Debug for Duration

source§

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

Formats the value using the given formatter. Read more
source§

impl Default for Duration

source§

fn default() -> Duration

Returns the “default value” for a type. Read more
§

impl Div<Duration> for Duration

§

type Output = f64

The resulting type after applying the / operator.
§

fn div(self, rhs: Duration) -> <Duration as Div<Duration>>::Output

Performs the / operation. Read more
§

impl Div<Duration> for Duration

§

type Output = f64

The resulting type after applying the / operator.
§

fn div(self, rhs: Duration) -> <Duration as Div<Duration>>::Output

Performs the / operation. Read more
source§

impl Div<u32> for Duration

§

type Output = Duration

The resulting type after applying the / operator.
source§

fn div(self, rhs: u32) -> Duration

Performs the / operation. Read more
1.9.0 · source§

impl DivAssign<u32> for Duration

source§

fn div_assign(&mut self, rhs: u32)

Performs the /= operation. Read more
source§

impl Hash for Duration

source§

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

Feeds this value into the given Hasher. Read more
source§

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

Feeds a slice of this type into the given Hasher. Read more
1.31.0 · source§

impl Mul<Duration> for u32

§

type Output = Duration

The resulting type after applying the * operator.
source§

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

Performs the * operation. Read more
source§

impl Mul<u32> for Duration

§

type Output = Duration

The resulting type after applying the * operator.
source§

fn mul(self, rhs: u32) -> Duration

Performs the * operation. Read more
1.9.0 · source§

impl MulAssign<u32> for Duration

source§

fn mul_assign(&mut self, rhs: u32)

Performs the *= operation. Read more
source§

impl Ord for Duration

source§

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

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

Compares and returns the maximum of two values. Read more
1.21.0 · source§

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

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
source§

impl PartialEq<Duration> for Duration

source§

fn eq(&self, other: &Duration) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
§

impl PartialEq<Duration> for Duration

§

fn eq(&self, rhs: &Duration) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
§

impl PartialEq<Duration> for Duration

§

fn eq(&self, rhs: &Duration) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl PartialOrd<Duration> for Duration

source§

fn partial_cmp(&self, other: &Duration) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
§

impl PartialOrd<Duration> for Duration

§

fn partial_cmp(&self, rhs: &Duration) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
§

impl PartialOrd<Duration> for Duration

§

fn partial_cmp(&self, rhs: &Duration) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
source§

impl SampleUniform for Duration

§

type Sampler = UniformDuration

The UniformSampler implementation supporting type X.
§

impl Sub<Duration> for Date

§

type Output = Date

The resulting type after applying the - operator.
§

fn sub(self, duration: Duration) -> <Date as Sub<Duration>>::Output

Performs the - operation. Read more
source§

impl Sub<Duration> for Duration

§

type Output = Duration

The resulting type after applying the - operator.
source§

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

Performs the - operation. Read more
§

impl Sub<Duration> for Duration

§

type Output = Duration

The resulting type after applying the - operator.
§

fn sub(self, rhs: Duration) -> <Duration as Sub<Duration>>::Output

Performs the - operation. Read more
§

impl Sub<Duration> for Duration

§

type Output = Duration

The resulting type after applying the - operator.
§

fn sub(self, rhs: Duration) -> <Duration as Sub<Duration>>::Output

Performs the - operation. Read more
1.8.0 · source§

impl Sub<Duration> for Instant

§

type Output = Instant

The resulting type after applying the - operator.
source§

fn sub(self, other: Duration) -> Instant

Performs the - operation. Read more
§

impl Sub<Duration> for Instant

§

type Output = Instant

The resulting type after applying the - operator.
§

fn sub(self, rhs: Duration) -> Instant

Performs the - operation. Read more
§

impl Sub<Duration> for Instant

§

fn sub(self, duration: Duration) -> <Instant as Sub<Duration>>::Output

Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure.

§

type Output = Instant

The resulting type after applying the - operator.
§

impl Sub<Duration> for OffsetDateTime

§

type Output = OffsetDateTime

The resulting type after applying the - operator.
§

fn sub(self, rhs: Duration) -> <OffsetDateTime as Sub<Duration>>::Output

Performs the - operation. Read more
§

impl Sub<Duration> for PrimitiveDateTime

§

type Output = PrimitiveDateTime

The resulting type after applying the - operator.
§

fn sub(self, duration: Duration) -> <PrimitiveDateTime as Sub<Duration>>::Output

Performs the - operation. Read more
1.8.0 · source§

impl Sub<Duration> for SystemTime

§

type Output = SystemTime

The resulting type after applying the - operator.
source§

fn sub(self, dur: Duration) -> SystemTime

Performs the - operation. Read more
§

impl Sub<Duration> for Time

§

fn sub(self, duration: Duration) -> <Time as Sub<Duration>>::Output

Subtract the sub-day time of the std::time::Duration from the Time. Wraps on overflow.

assert_eq!(time!(14:00) - 2.std_hours(), time!(12:00));
assert_eq!(time!(0:00:01) - 2.std_seconds(), time!(23:59:59));
§

type Output = Time

The resulting type after applying the - operator.
§

impl SubAssign<Duration> for Date

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
1.9.0 · source§

impl SubAssign<Duration> for Duration

source§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for Duration

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for Duration

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
1.9.0 · source§

impl SubAssign<Duration> for Instant

source§

fn sub_assign(&mut self, other: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for Instant

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for Instant

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for OffsetDateTime

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for PrimitiveDateTime

§

fn sub_assign(&mut self, duration: Duration)

Performs the -= operation. Read more
1.9.0 · source§

impl SubAssign<Duration> for SystemTime

source§

fn sub_assign(&mut self, other: Duration)

Performs the -= operation. Read more
§

impl SubAssign<Duration> for Time

§

fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
1.16.0 · source§

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

source§

fn sum<I>(iter: I) -> Durationwhere I: Iterator<Item = &'a Duration>,

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

impl Sum<Duration> for Duration

source§

fn sum<I>(iter: I) -> Durationwhere I: Iterator<Item = Duration>,

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

impl TryFrom<Duration> for Duration

§

type Error = ConversionRange

The type returned in the event of a conversion error.
§

fn try_from(duration: Duration) -> Result<Duration, ConversionRange>

Performs the conversion.
§

impl TryFrom<Duration> for Duration

§

type Error = ConversionRange

The type returned in the event of a conversion error.
§

fn try_from(original: Duration) -> Result<Duration, ConversionRange>

Performs the conversion.
§

impl TryFrom<Duration> for IdleTimeout

§

type Error = VarIntBoundsExceeded

The type returned in the event of a conversion error.
§

fn try_from( timeout: Duration ) -> Result<IdleTimeout, <IdleTimeout as TryFrom<Duration>>::Error>

Performs the conversion.
source§

impl Copy for Duration

source§

impl Eq for Duration

source§

impl StructuralEq for Duration

source§

impl StructuralPartialEq for Duration

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for Twhere T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
§

impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere T: 'a,

§

fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

§

impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere T: 'a,

§

fn implicit( self, class: Class, constructed: bool, tag: u32 ) -> TaggedParser<'a, Implicit, Self, E>

source§

impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
§

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T> Instrument for T

§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

§

impl<T> Pointable for T

§

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> Same<T> for T

§

type Output = T

Should always be Self
source§

impl<Borrowed> SampleBorrow<Borrowed> for Borrowedwhere Borrowed: SampleUniform,

source§

fn borrow(&self) -> &Borrowed

Immutably borrows from an owned value. See Borrow::borrow
source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

§

fn vzip(self) -> V

§

impl<T> WithSubscriber for T

§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
source§

impl<M> Measure for Mwhere M: Debug + PartialOrd<M> + Add<M, Output = M> + Default + Clone,

source§

impl<N> NodeTrait for Nwhere N: Copy + Ord + Hash,