From f2ec0d3d26dc31c84274b853cc04ce25371c8d3d Mon Sep 17 00:00:00 2001
From: Pavel Grigorenko <grigorenkopv@ya.ru>
Date: Thu, 14 Mar 2024 01:37:12 +0300
Subject: [PATCH] Implement `Duration::as_millis_{f64,f32}`
---
library/core/src/time.rs | 42 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/library/core/src/time.rs b/library/core/src/time.rs
index b533f53993870..78494b866b108 100644
--- a/library/core/src/time.rs
+++ b/library/core/src/time.rs
@@ -856,6 +856,48 @@ impl Duration {
(self.secs as f32) + (self.nanos.0 as f32) / (NANOS_PER_SEC as f32)
}
+ /// Returns the number of milliseconds contained by this `Duration` as `f64`.
+ ///
+ /// The returned value does include the fractional (nanosecond) part of the duration.
+ ///
+ /// # Examples
+ /// ```
+ /// #![feature(duration_millis_float)]
+ /// use std::time::Duration;
+ ///
+ /// let dur = Duration::new(2, 345_678_000);
+ /// assert_eq!(dur.as_millis_f64(), 2345.678);
+ /// ```
+ #[unstable(feature = "duration_millis_float", issue = "122451")]
+ #[must_use]
+ #[inline]
+ #[rustc_const_unstable(feature = "duration_consts_float", issue = "72440")]
+ pub const fn as_millis_f64(&self) -> f64 {
+ (self.secs as f64) * (MILLIS_PER_SEC as f64)
+ + (self.nanos.0 as f64) / (NANOS_PER_MILLI as f64)
+ }
+
+ /// Returns the number of milliseconds contained by this `Duration` as `f32`.
+ ///
+ /// The returned value does include the fractional (nanosecond) part of the duration.
+ ///
+ /// # Examples
+ /// ```
+ /// #![feature(duration_millis_float)]
+ /// use std::time::Duration;
+ ///
+ /// let dur = Duration::new(2, 345_678_000);
+ /// assert_eq!(dur.as_millis_f32(), 2345.678);
+ /// ```
+ #[unstable(feature = "duration_millis_float", issue = "122451")]
+ #[must_use]
+ #[inline]
+ #[rustc_const_unstable(feature = "duration_consts_float", issue = "72440")]
+ pub const fn as_millis_f32(&self) -> f32 {
+ (self.secs as f32) * (MILLIS_PER_SEC as f32)
+ + (self.nanos.0 as f32) / (NANOS_PER_MILLI as f32)
+ }
+
/// Creates a new `Duration` from the specified number of seconds represented
/// as `f64`.
///