/// ```
#[stable(feature = "duration", since = "1.3.0")]
#[inline]
- pub fn from_secs(secs: u64) -> Duration {
+ pub const fn from_secs(secs: u64) -> Duration {
Duration { secs: secs, nanos: 0 }
}
/// ```
#[stable(feature = "duration", since = "1.3.0")]
#[inline]
- pub fn from_millis(millis: u64) -> Duration {
- let secs = millis / MILLIS_PER_SEC;
- let nanos = ((millis % MILLIS_PER_SEC) as u32) * NANOS_PER_MILLI;
- Duration { secs: secs, nanos: nanos }
+ pub const fn from_millis(millis: u64) -> Duration {
+ Duration {
+ secs: millis / MILLIS_PER_SEC,
+ nanos: ((millis % MILLIS_PER_SEC) as u32) * NANOS_PER_MILLI,
+ }
}
/// Creates a new `Duration` from the specified number of microseconds.
/// ```
#[unstable(feature = "duration_from_micros", issue = "44400")]
#[inline]
- pub fn from_micros(micros: u64) -> Duration {
- let secs = micros / MICROS_PER_SEC;
- let nanos = ((micros % MICROS_PER_SEC) as u32) * NANOS_PER_MICRO;
- Duration { secs: secs, nanos: nanos }
+ pub const fn from_micros(micros: u64) -> Duration {
+ Duration {
+ secs: micros / MICROS_PER_SEC,
+ nanos: ((micros % MICROS_PER_SEC) as u32) * NANOS_PER_MICRO,
+ }
}
/// Creates a new `Duration` from the specified number of nanoseconds.
/// ```
#[unstable(feature = "duration_extras", issue = "46507")]
#[inline]
- pub fn from_nanos(nanos: u64) -> Duration {
- let secs = nanos / (NANOS_PER_SEC as u64);
- let nanos = (nanos % (NANOS_PER_SEC as u64)) as u32;
- Duration { secs: secs, nanos: nanos }
+ pub const fn from_nanos(nanos: u64) -> Duration {
+ Duration {
+ secs: nanos / (NANOS_PER_SEC as u64),
+ nanos: (nanos % (NANOS_PER_SEC as u64)) as u32,
+ }
}
/// Returns the number of _whole_ seconds contained by this `Duration`.