Struct hipool::NullAlloc

pub struct NullAlloc;

Trait Implementations

impl Allocator for NullAlloc

unsafe fn alloc_buf<F>( &self, _layout: Layout, _f: F ) -> Result<NonNull<[u8]>, Error>

where F: FnOnce(NonNull<[u8]>) -> Result<(), Error>,

Safety

unsafe fn deallocate(&self, _ptr: NonNull<[u8]>, _layout: Layout)

Safety

unsafe fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, Error>

Safety

unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout)

Safety

unsafe fn alloc_then<T, F>(&self, f: F) -> Result<NonNull<T>, Error>

where F: FnOnce(&mut MaybeUninit<T>) -> Result<(), Error>,

Safety

unsafe fn alloc_slice_then<T, F>( &self, len: usize, f: F ) -> Result<NonNull<[T]>, Error>

where F: FnMut(usize, &mut MaybeUninit<T>) -> Result<(), Error>,

Safety

unsafe fn init<T>(&self, val: T) -> Result<NonNull<T>, Error>

Safety

unsafe fn init_slice<T: Clone>( &self, len: usize, val: T ) -> Result<NonNull<[T]>, Error>

Safety

unsafe fn zeroed<T>(&self) -> Result<NonNull<MaybeUninit<T>>, Error>

Safety

unsafe fn zeroed_slice<T>( &self, len: usize ) -> Result<NonNull<[MaybeUninit<T>]>, Error>

Safety

unsafe fn uninit<T>(&self) -> Result<NonNull<MaybeUninit<T>>, Error>

Safety

unsafe fn uninit_slice<T>( &self, len: usize ) -> Result<NonNull<[MaybeUninit<T>]>, Error>

Safety

unsafe fn release<T>(&self, ptr: NonNull<T>)

Safety

unsafe fn release_with<T: ?Sized>(&self, ptr: NonNull<T>, layout: Layout)

Safety

unsafe fn release_slice<T>(&self, ptr: NonNull<[T]>)

Safety

impl Clone for NullAlloc

fn clone(&self) -> NullAlloc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl GlobalAlloc for NullAlloc

unsafe fn alloc(&self, _layout: Layout) -> *mut u8

Allocate memory as described by the given layout.

unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout)

Deallocate the block of memory at the given ptr pointer with the given layout.

unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8

Behaves like alloc, but also ensures that the contents are set to zero before being returned.

unsafe fn realloc( &self, ptr: *mut u8, layout: Layout, new_size: usize ) -> *mut u8

Shrink or grow a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout.

impl Ord for NullAlloc

fn cmp(&self, other: &NullAlloc) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for NullAlloc

fn eq(&self, other: &NullAlloc) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for NullAlloc

fn partial_cmp(&self, other: &NullAlloc) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for NullAlloc

impl Eq for NullAlloc

impl StructuralEq for NullAlloc

impl StructuralPartialEq for NullAlloc