Struct WeeAlloc

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pub struct WeeAlloc<'a> { /* private fields */ }
Expand description

A wee allocator.

§Safety

When used in unix environments, cannot move in memory. Typically not an issue if you’re just using this as a static global allocator.

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impl<'a> WeeAlloc<'a>

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pub const INIT: Self = <Self as ConstInit>::INIT

An initial const default construction of a WeeAlloc allocator.

This is usable for initializing statics that get set as the global allocator.

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impl GlobalAlloc for WeeAlloc<'static>

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

Allocates memory as described by the given layout. Read more
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unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout)

Deallocates the block of memory at the given ptr pointer with the given layout. Read more
1.28.0 · Source§

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

Shrinks or grows a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout. Read more
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impl<'a> Sync for WeeAlloc<'a>

Auto Trait Implementations§

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impl<'a> !Freeze for WeeAlloc<'a>

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impl<'a> !RefUnwindSafe for WeeAlloc<'a>

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impl<'a> !Send for WeeAlloc<'a>

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impl<'a> Unpin for WeeAlloc<'a>

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impl<'a> !UnwindSafe for WeeAlloc<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.