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ZeroCopyTensor

Struct ZeroCopyTensor 

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pub struct ZeroCopyTensor<T> { /* private fields */ }
Expand description

Zero-copy tensor wrapper that avoids unnecessary memory allocation

This struct provides a view into existing memory without copying data. It can work with borrowed slices or take ownership of allocated memory.

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impl<T> ZeroCopyTensor<T>

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pub unsafe fn from_raw_parts( data_ptr: *const T, shape: Vec<usize>, stride: Vec<usize>, ) -> Self

Create a zero-copy tensor from existing data without copying

§Safety

This function is unsafe because it directly uses raw pointers. The caller must ensure:

  • data_ptr is a valid pointer to a memory region that contains at least capacity elements
  • The memory region remains valid for the lifetime of the ZeroCopyTensor
  • The memory is properly aligned for type T
  • The shape and stride parameters correctly describe the tensor layout
  • No other code mutates the memory region while this tensor exists
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pub fn from_slice(data: &[T], shape: Vec<usize>) -> Self

Create a zero-copy tensor from a slice

This creates a view into the provided slice without copying data. The slice must remain valid for the lifetime of the tensor.

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pub fn from_vec(data: Vec<T>, shape: Vec<usize>) -> Self

Create a zero-copy tensor by taking ownership of a Vec

This transfers ownership of the Vec’s memory to the tensor, avoiding the need to copy data.

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pub fn shape(&self) -> &[usize]

Get the shape of the tensor

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pub fn stride(&self) -> &[usize]

Get the stride of the tensor

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pub fn len(&self) -> usize

Get the total number of elements

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pub fn is_empty(&self) -> bool

Check if the tensor is empty

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pub fn as_slice(&self) -> &[T]

Get data as a slice

§Safety

This is safe as long as the tensor was constructed properly and the underlying memory remains valid.

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pub fn slice_view(&self, ranges: &[(usize, usize)]) -> Result<ZeroCopyTensor<T>>

Create a view into a subregion without copying data

This creates a new tensor that views a slice of the current tensor. The data is not copied, only the view parameters are adjusted.

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pub fn ndim(&self) -> usize

Get the number of dimensions

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pub fn is_owned(&self) -> bool

Check if this tensor owns its memory

Trait Implementations§

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impl<T> Drop for ZeroCopyTensor<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more
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impl<T: Send> Send for ZeroCopyTensor<T>

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impl<T: Sync> Sync for ZeroCopyTensor<T>

Auto Trait 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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts 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> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V