Trait time::ext::NumericalDuration[−][src]

pub trait NumericalDuration {
    fn nanoseconds(self) -> Duration;

    fn microseconds(self) -> Duration;

    fn milliseconds(self) -> Duration;

    fn seconds(self) -> Duration;

    fn minutes(self) -> Duration;

    fn hours(self) -> Duration;

    fn days(self) -> Duration;

    fn weeks(self) -> Duration;
}
Expand description

Create Durations from primitive and core numeric types.

This trait can be imported with use time::prelude::*.

Due to limitations in rustc, these methods are currently not const fn. See RFC 2632 for details.

Examples

Basic construction of Durations.

assert_eq!(5.nanoseconds(), Duration::nanoseconds(5));
assert_eq!(5.microseconds(), Duration::microseconds(5));
assert_eq!(5.milliseconds(), Duration::milliseconds(5));
assert_eq!(5.seconds(), Duration::seconds(5));
assert_eq!(5.minutes(), Duration::minutes(5));
assert_eq!(5.hours(), Duration::hours(5));
assert_eq!(5.days(), Duration::days(5));
assert_eq!(5.weeks(), Duration::weeks(5));

Signed integers work as well!

assert_eq!((-5).nanoseconds(), Duration::nanoseconds(-5));
assert_eq!((-5).microseconds(), Duration::microseconds(-5));
assert_eq!((-5).milliseconds(), Duration::milliseconds(-5));
assert_eq!((-5).seconds(), Duration::seconds(-5));
assert_eq!((-5).minutes(), Duration::minutes(-5));
assert_eq!((-5).hours(), Duration::hours(-5));
assert_eq!((-5).days(), Duration::days(-5));
assert_eq!((-5).weeks(), Duration::weeks(-5));

Just like any other Duration, they can be added, subtracted, etc.

assert_eq!(2.seconds() + 500.milliseconds(), 2_500.milliseconds());
assert_eq!(2.seconds() - 500.milliseconds(), 1_500.milliseconds());

When called on floating point values, any remainder of the floating point value will be truncated. Keep in mind that floating point numbers are inherently imprecise and have limited capacity.

Required methods

Create a Duration from the number of nanoseconds.

Create a Duration from the number of microseconds.

Create a Duration from the number of milliseconds.

Create a Duration from the number of seconds.

Create a Duration from the number of minutes.

Create a Duration from the number of hours.

Create a Duration from the number of days.

Create a Duration from the number of weeks.

Implementations on Foreign Types

Implementors