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| author | John Kugelman <john@kugelman.name> | 2021-10-30 23:37:32 -0400 |
|---|---|---|
| committer | John Kugelman <john@kugelman.name> | 2021-10-30 23:37:32 -0400 |
| commit | a81d4b18ea7ee03733e983974400816684f78ebe (patch) | |
| tree | 6ad8f58e2ef27985c4350a332d5e8ec77ee2b3f9 /library/std/src/time.rs | |
| parent | e249ce6b2345587d6e11052779c86adbad626dff (diff) | |
| download | rust-a81d4b18ea7ee03733e983974400816684f78ebe.tar.gz rust-a81d4b18ea7ee03733e983974400816684f78ebe.zip | |
Add #[must_use] to remaining std functions (O-Z)
Diffstat (limited to 'library/std/src/time.rs')
| -rw-r--r-- | library/std/src/time.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/library/std/src/time.rs b/library/std/src/time.rs index 3e27e3a4297..a5e3bd0c290 100644 --- a/library/std/src/time.rs +++ b/library/std/src/time.rs @@ -239,6 +239,7 @@ impl Instant { /// /// let now = Instant::now(); /// ``` + #[must_use] #[stable(feature = "time2", since = "1.8.0")] pub fn now() -> Instant { let os_now = time::Instant::now(); @@ -306,6 +307,7 @@ impl Instant { /// let new_now = Instant::now(); /// println!("{:?}", new_now.duration_since(now)); /// ``` + #[must_use] #[stable(feature = "time2", since = "1.8.0")] pub fn duration_since(&self, earlier: Instant) -> Duration { self.0.checked_sub_instant(&earlier.0).expect("supplied instant is later than self") @@ -326,6 +328,7 @@ impl Instant { /// println!("{:?}", new_now.checked_duration_since(now)); /// println!("{:?}", now.checked_duration_since(new_now)); // None /// ``` + #[must_use] #[stable(feature = "checked_duration_since", since = "1.39.0")] pub fn checked_duration_since(&self, earlier: Instant) -> Option<Duration> { self.0.checked_sub_instant(&earlier.0) @@ -346,6 +349,7 @@ impl Instant { /// println!("{:?}", new_now.saturating_duration_since(now)); /// println!("{:?}", now.saturating_duration_since(new_now)); // 0ns /// ``` + #[must_use] #[stable(feature = "checked_duration_since", since = "1.39.0")] pub fn saturating_duration_since(&self, earlier: Instant) -> Duration { self.checked_duration_since(earlier).unwrap_or_default() @@ -370,6 +374,7 @@ impl Instant { /// sleep(three_secs); /// assert!(instant.elapsed() >= three_secs); /// ``` + #[must_use] #[stable(feature = "time2", since = "1.8.0")] pub fn elapsed(&self) -> Duration { Instant::now() - *self @@ -476,6 +481,7 @@ impl SystemTime { /// /// let sys_time = SystemTime::now(); /// ``` + #[must_use] #[stable(feature = "time2", since = "1.8.0")] pub fn now() -> SystemTime { SystemTime(time::SystemTime::now()) @@ -644,6 +650,7 @@ impl SystemTimeError { /// Err(e) => println!("SystemTimeError difference: {:?}", e.duration()), /// } /// ``` + #[must_use] #[stable(feature = "time2", since = "1.8.0")] pub fn duration(&self) -> Duration { self.0 |