Struct std::collections::btree_map::OccupiedError   
source · [−]pub struct OccupiedError<'a, K, V> where
    K: 'a,
    V: 'a,  {
    pub entry: OccupiedEntry<'a, K, V>,
    pub value: V,
}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>The entry in the map that was already occupied.
value: VThe value which was not inserted, because the entry was already occupied.
Trait Implementations
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> RefUnwindSafe for OccupiedError<'a, K, V> where
    K: RefUnwindSafe,
    V: RefUnwindSafe, 
impl<'a, K, V> Send for OccupiedError<'a, K, V> where
    K: Send,
    V: Send, 
impl<'a, K, V> Sync for OccupiedError<'a, K, V> where
    K: Sync,
    V: Sync, 
impl<'a, K, V> Unpin for OccupiedError<'a, K, V> where
    V: Unpin, 
impl<'a, K, V> !UnwindSafe for OccupiedError<'a, K, V>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
    T: ?Sized, 
 
impl<T> BorrowMut<T> for T where
    T: ?Sized, 
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
 
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more