Enum TryReserveError 

#[non_exhaustive]
pub enum TryReserveError {
    CapacityOverflow,
    AllocError {
        layout: Layout,
    },
}

An error that can occur during a try_reserve method.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

CapacityOverflow

The amount of memory that we would need to allocate would have been greater than the maximum (typically `isize::MAX).

AllocError

We were unable to allocate memory to grow the table or set.

Fields

layout: Layout

The memory layout that we were unable to allocate.

Trait Implementations

impl Clone for TryReserveError

fn clone(&self) -> TryReserveError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TryReserveError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for TryReserveError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for TryReserveError

Available on crate feature std only.

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.