pub struct Global;
allocator_api
)mtls
only.Expand description
The global memory allocator.
This type implements the Allocator
trait by forwarding calls
to the allocator registered with the #[global_allocator]
attribute
if there is one, or the std
crateโs default.
Note: while this type is unstable, the functionality it provides can be
accessed through the free functions in alloc
.
Trait Implementationsยง
Sourceยงimpl Allocator for Global
impl Allocator for Global
Sourceยงfn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
allocator_api
)Sourceยงfn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
allocator_api
)allocate
, but also ensures that the returned memory is zero-initialized. Read moreSourceยงunsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)
unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)
allocator_api
)ptr
. Read moreSourceยงunsafe fn grow(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout,
) -> Result<NonNull<[u8]>, AllocError>
unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>
allocator_api
)Sourceยงunsafe fn grow_zeroed(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout,
) -> Result<NonNull<[u8]>, AllocError>
unsafe fn grow_zeroed( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>
allocator_api
)grow
, but also ensures that the new contents are set to zero before being
returned. Read moreimpl Copy for Global
Auto Trait Implementationsยง
impl Freeze for Global
impl RefUnwindSafe for Global
impl Send for Global
impl Sync for Global
impl Unpin for Global
impl UnwindSafe for Global
Blanket Implementationsยง
Sourceยงimpl<T> AsAny for Twhere
T: Any,
impl<T> AsAny for Twhere
T: Any,
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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Sourceยงimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Sourceยงfn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Sourceยงimpl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
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impl<T> Instrument for T
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fn in_current_span(self) -> Instrumented<Self> โ
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impl<T> IntoEither for T
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self
into a Left
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.
Converts self
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> โ
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
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T: ?Sized,
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T: ?Sized,
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This method should be used rarely. Instead, prefer to use color-specific
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and
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Set foreground color to white using white()
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Sourceยงfn on_bright_green(&self) -> Painted<&T>
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Sourceยงfn on_bright_yellow(&self) -> Painted<&T>
fn on_bright_yellow(&self) -> Painted<&T>
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Enables the styling Attribute
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๐Deprecated since 1.0.1: renamed to resetting()
due to conflicts with Vec::clear()
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The clear()
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