Enum std::heap::AllocErr

pub enum AllocErr {
    Exhausted {
        request: Layout,
    },
    Unsupported {
        details: &'static str,
    },
}

The AllocErr error specifies whether an allocation failure is specifically due to resource exhaustion or if it is due to something wrong when combining the given input arguments with this allocator.

Variants

Exhausted

Error due to hitting some resource limit or otherwise running out of memory. This condition strongly implies that some series of deallocations would allow a subsequent reissuing of the original allocation request to succeed.

Fields of Exhausted

request: Layout

🔬 This is a nightly-only experimental API. (allocator_api #32838)the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector

Unsupported

Error due to allocator being fundamentally incapable of satisfying the original request. This condition implies that such an allocation request will never succeed on the given allocator, regardless of environment, memory pressure, or other contextual conditions.

For example, an allocator that does not support requests for large memory blocks might return this error variant.

Fields of Unsupported

details: &'static str

🔬 This is a nightly-only experimental API. (allocator_api #32838)the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector

Methods

impl AllocErr [src]

fn invalid_input(details: &'static str) -> AllocErr [src]

fn is_memory_exhausted(&self) -> bool [src]

fn is_request_unsupported(&self) -> bool [src]

fn description(&self) -> &str [src]

Trait Implementations

impl PartialEq<AllocErr> for AllocErr [src]

fn eq(&self, __arg_0: &AllocErr) -> bool [src]

fn ne(&self, __arg_0: &AllocErr) -> bool [src]

impl Debug for AllocErr [src]

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error> [src]

impl Clone for AllocErr [src]

fn clone(&self) -> AllocErr [src]

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

1.0.0

[src]

impl Eq for AllocErr [src]

impl Display for AllocErr [src]

fn fmt(&self, f: &mut Formatter) -> Result<(), Error> [src]

impl Error for AllocErr [src]

fn description(&self) -> &str [src]

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

1.0.0

[src]