Enum MemoryError 

pub enum MemoryError {
    ZeroLength,
    MaximumBelowInitial {
        initial: usize,
        maximum: usize,
    },
    FixedSize,
    ShrinkUnsupported {
        current: usize,
        requested: usize,
    },
    MaximumExceeded {
        requested: usize,
        maximum: usize,
    },
    Platform {
        operation: &'static str,
    },
    RandomnessUnavailable,
}

Portable allocation, policy, or lifecycle failure.

Variants

ZeroLength

Shared-memory regions cannot be empty.

MaximumBelowInitial

Configured maximum is smaller than the initial logical length.

Fields

initial: usize

Initial requested logical length.

maximum: usize

Configured maximum logical length.

FixedSize

Fixed-size policy rejects growth.

ShrinkUnsupported

Shrinking would silently discard user-owned bytes.

Fields

current: usize

Current logical length.

requested: usize

Requested smaller logical length.

MaximumExceeded

Requested growth exceeds the configured limit.

Fields

requested: usize

Requested logical length.

maximum: usize

Configured maximum logical length.

Platform

Selected native backend rejected the bounded operation.

Fields

operation: &'static str

Portable operation category.

RandomnessUnavailable

The operating-system CSPRNG could not mint object freshness.

Trait Implementations

impl Debug for MemoryError

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

Formats the value using the given formatter.

impl Display for MemoryError

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

Formats the value using the given formatter.

impl Error for MemoryError

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.

impl From<MemoryError> for RegionError

fn from(value: MemoryError) -> Self

Converts to this type from the input type.