Trait DurationExt

pub trait DurationExt {
    // Required methods
    fn try_from_secs_i64(secs: i64) -> Result<Duration, DurationError>;
    fn saturating_mul_f64(&self, rhs: f64) -> Duration;
}

Extensions for std::time::Duration.

Required Methods

fn try_from_secs_i64(secs: i64) -> Result<Duration, DurationError>

Creates a Duration from the specified number of seconds represented as an i64.

Returns an error if the provided number of seconds is negative.

use std::time::Duration;
use mz_ore::time::DurationExt;

// Negative numbers will fail.
assert!(Duration::try_from_secs_i64(-100).is_err());

// i64 max works.
assert!(Duration::try_from_secs_i64(i64::MAX).is_ok());

fn saturating_mul_f64(&self, rhs: f64) -> Duration

Saturating Duration multiplication. Computes self * rhs, saturating at the numeric bounds instead of overflowing.

use std::time::Duration;
use mz_ore::time::DurationExt;

let one = Duration::from_secs(1);
assert_eq!(one.saturating_mul_f64(f64::INFINITY), Duration::from_secs(u64::MAX));

assert_eq!(one.saturating_mul_f64(f64::NEG_INFINITY), Duration::from_secs(0));
assert_eq!(one.saturating_mul_f64(f64::NAN), Duration::from_secs(0));
assert_eq!(one.saturating_mul_f64(-0.0), Duration::from_secs(0));
assert_eq!(one.saturating_mul_f64(0.0), Duration::from_secs(0));

assert_eq!(Duration::from_secs(20).saturating_mul_f64(0.1), Duration::from_secs(2));

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl DurationExt for Duration

fn try_from_secs_i64(secs: i64) -> Result<Duration, DurationError>

fn saturating_mul_f64(&self, rhs: f64) -> Duration

Implementors