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Makes the constructors of Duration const fns.

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This commit is contained in:
Nathaniel Ringo 2018-01-09 14:21:45 -06:00
parent 61452e506f
commit 2624c05acf
1 changed files with 5 additions and 5 deletions
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10
src/libstd/time/duration.rs
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@ -73,7 +73,7 @@ impl Duration {
/// ```
#[stable(feature = "duration", since = "1.3.0")]
#[inline]
pub fn new(secs: u64, nanos: u32) -> Duration {
pub const fn new(secs: u64, nanos: u32) -> Duration {
let secs = secs.checked_add((nanos / NANOS_PER_SEC) as u64)
.expect("overflow in Duration::new");
let nanos = nanos % NANOS_PER_SEC;
@ -94,7 +94,7 @@ impl Duration {
/// ```
#[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 }
}
@ -112,7 +112,7 @@ impl Duration {
/// ```
#[stable(feature = "duration", since = "1.3.0")]
#[inline]
pub fn from_millis(millis: u64) -> Duration {
pub const 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 }
@ -133,7 +133,7 @@ impl Duration {
/// ```
#[unstable(feature = "duration_from_micros", issue = "44400")]
#[inline]
pub fn from_micros(micros: u64) -> Duration {
pub const 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 }
@ -154,7 +154,7 @@ impl Duration {
/// ```
#[unstable(feature = "duration_extras", issue = "46507")]
#[inline]
pub fn from_nanos(nanos: u64) -> Duration {
pub const 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 }