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manually implement Copy on DateTime<Tz> #1572

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manually implement Copy on DateTime<Tz> #1572

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6 changes: 5 additions & 1 deletion src/datetime/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ mod tests;
/// There are some constructors implemented here (the `from_*` methods), but
/// the general-purpose constructors are all via the methods on the
/// [`TimeZone`](./offset/trait.TimeZone.html) implementations.
#[derive(Copy, Clone)]
#[derive(Clone)]
#[cfg_attr(
any(feature = "rkyv", feature = "rkyv-16", feature = "rkyv-32", feature = "rkyv-64"),
derive(Archive, Deserialize, Serialize),
Expand All @@ -58,6 +58,10 @@ pub struct DateTime<Tz: TimeZone> {
offset: Tz::Offset,
}

// The Copy impl is not derived, because it would add an un-necessary
// `Tz: Copy` bound
impl<Tz: TimeZone> Copy for DateTime<Tz> where <Tz as TimeZone>::Offset: Copy {}

/// The minimum possible `DateTime<Utc>`.
#[deprecated(since = "0.4.20", note = "Use DateTime::MIN_UTC instead")]
pub const MIN_DATETIME: DateTime<Utc> = DateTime::<Utc>::MIN_UTC;
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