Struct StdAllocator 

#[repr(C)]
pub struct StdAllocator;

The default implementation of Allocator trait, that calls standard alloc crate under the hood.

Trait Implementations

impl Allocator for StdAllocator

type SpecificAllocationError = AllocationError

A specific Allocator error. Implementor can add additional information to the error, not only generic “allocation failed”.

fn allocate( &self, layout: Layout, ) -> Result<NonNull<u8>, Self::SpecificAllocationError>

Allocates new piece of memory. This is the only safe function here. The returned ptr is guaranteed to satisfy layout requirements (although the implementation is free to overallocate and strengthen alignment).

unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)

Deallocates memory.

unsafe fn resize( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<u8>, Self::SpecificAllocationError>

Resizes given ptr to the new layout.

impl Clone for StdAllocator

fn clone(&self) -> StdAllocator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StdAllocator

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

Formats the value using the given formatter.

impl Default for StdAllocator

fn default() -> StdAllocator

Returns the “default value” for a type.

impl Copy for StdAllocator