SystemTimeError in std::time - Rust (original) (raw)

Struct SystemTimeError

1.8.0 · Source

pub struct SystemTimeError(/* private fields */);

Expand description

An error returned from the duration_since and elapsed methods onSystemTime, used to learn how far in the opposite direction a system time lies.

§Examples

use std::thread::sleep;
use std::time::{Duration, SystemTime};

let sys_time = SystemTime::now();
sleep(Duration::from_secs(1));
let new_sys_time = SystemTime::now();
match sys_time.duration_since(new_sys_time) {
    Ok(_) => {}
    Err(e) => println!("SystemTimeError difference: {:?}", e.duration()),
}

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1.8.0 · Source

Returns the positive duration which represents how far forward the second system time was from the first.

A SystemTimeError is returned from the SystemTime::duration_sinceand SystemTime::elapsed methods whenever the second system time represents a point later in time than the self of the method call.

§Examples
use std::thread::sleep;
use std::time::{Duration, SystemTime};

let sys_time = SystemTime::now();
sleep(Duration::from_secs(1));
let new_sys_time = SystemTime::now();
match sys_time.duration_since(new_sys_time) {
    Ok(_) => {}
    Err(e) => println!("SystemTimeError difference: {:?}", e.duration()),
}

1.8.0 · Source§

1.8.0 · Source§

1.8.0 · Source§

1.8.0 · Source§

1.30.0§

Returns the lower-level source of this error, if any. Read more

1.0.0§

👎Deprecated since 1.42.0: use the Display impl or to_string()

1.0.0§

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

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🔬This is a nightly-only experimental API. (error_generic_member_access #99301)

Provides type-based access to context intended for error reports. Read more

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Immutably borrows from an owned value. Read more

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Mutably borrows from an owned value. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit #126799)

Performs copy-assignment from self to dest. Read more

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Returns the argument unchanged.

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Calls U::from(self).

That is, this conversion is whatever the implementation of[From](../convert/trait.From.html "trait std::convert::From")<T> for U chooses to do.

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The resulting type after obtaining ownership.

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

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

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Converts the given value to a String. Read more

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The type returned in the event of a conversion error.

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Performs the conversion.

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The type returned in the event of a conversion error.

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Performs the conversion.