Struct alloc::collections::btree_map::OccupiedError
source · [−]pub struct OccupiedError<'a, K: 'a, V: 'a, A: Allocator + Clone = Global> {
pub entry: OccupiedEntry<'a, K, V, A>,
pub value: V,
}
🔬This is a nightly-only experimental API. (
map_try_insert
#82766)Expand description
The error returned by try_insert
when the key already exists.
Contains the occupied entry, and the value that was not inserted.
Fields
entry: OccupiedEntry<'a, K, V, A>
🔬This is a nightly-only experimental API. (
map_try_insert
#82766)The entry in the map that was already occupied.
value: V
🔬This is a nightly-only experimental API. (
map_try_insert
#82766)The value which was not inserted, because the entry was already occupied.
Trait Implementations
sourceimpl<'a, K: Debug + Ord, V: Debug, A: Allocator + Clone> Display for OccupiedError<'a, K, V, A>
impl<'a, K: Debug + Ord, V: Debug, A: Allocator + Clone> Display for OccupiedError<'a, K, V, A>
sourceimpl<'a, K: Debug + Ord, V: Debug> Error for OccupiedError<'a, K, V>
impl<'a, K: Debug + Ord, V: Debug> Error for OccupiedError<'a, K, V>
sourcefn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
1.30.0 · sourcefn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
Auto Trait Implementations
impl<'a, K, V, A> RefUnwindSafe for OccupiedError<'a, K, V, A>where
A: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V, A> Send for OccupiedError<'a, K, V, A>where
A: Send,
K: Send,
V: Send,
impl<'a, K, V, A> Sync for OccupiedError<'a, K, V, A>where
A: Sync,
K: Sync,
V: Sync,
impl<'a, K, V, A> Unpin for OccupiedError<'a, K, V, A>where
A: Unpin,
V: Unpin,
impl<'a, K, V, A = Global> !UnwindSafe for OccupiedError<'a, K, V, A>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more