TensorSpan<T> Struct

Reference

Definition

Namespace:: System.Numerics.Tensors

Assembly:: System.Numerics.Tensors.dll

Package:: System.Numerics.Tensors v9.0.0

Source:: TensorSpan.cs

Source:: TensorSpan.cs

Important

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TensorSpan represents a contiguous region of arbitrary memory. Unlike arrays, it can point to either managed or native memory, or to memory allocated on the stack. It is type-safe and memory-safe.

generic <typename T>
public value class TensorSpan

[System.Diagnostics.CodeAnalysis.Experimental("SYSLIB5001", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public readonly ref struct TensorSpan<T>

[<System.Diagnostics.CodeAnalysis.Experimental("SYSLIB5001", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type TensorSpan<'T> = struct

Public Structure TensorSpan(Of T)

Type Parameters

T

Inheritance: Object

ValueType
TensorSpan<T>

Attributes: ExperimentalAttribute

Constructors

TensorSpan<T>(Array, ReadOnlySpan<Int32>, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>)	Creates a new TensorSpan<T> over the provided Array using the specified start offsets, lengths, and strides. If the strides are not provided, they will be automatically calculated.
TensorSpan<T>(Array, ReadOnlySpan<NIndex>, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>)	Creates a new TensorSpan<T> over the provided Array using the specified start offsets, lengths, and strides. If the strides are not provided, they will be automatically calculated.
TensorSpan<T>(Array)	Creates a new TensorSpan<T> over the provided Array. The new TensorSpan<T> will have a rank of 1 and a length equal to the length of the provided Array.
TensorSpan<T>(Span<T>, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>)	Creates a new TensorSpan<T> over the provided Span<T> using the specified lengths and strides. If the strides are not provided, they will be automatically calculated.
TensorSpan<T>(Span<T>)	Creates a new TensorSpan<T> over the provided Span<T>. The new TensorSpan<T> will have a rank of 1 and a length equal to the length of the provided Span<T>.
TensorSpan<T>(T[], Index, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>)	Creates a new span over the portion of the target array beginning at 'start' index and ending at 'end' index (exclusive).
TensorSpan<T>(T[], Int32, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>)	Creates a new span over the portion of the target array beginning at 'start' index and ending at 'end' index (exclusive).
TensorSpan<T>(T[])	Creates a new span over the entirety of the target array.
TensorSpan<T>(T*, IntPtr, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>)	Creates a new span over the target unmanaged buffer. Clearly this is quite dangerous, because the length is not checked. But if this creation is correct, then all subsequent uses are correct.
TensorSpan<T>(T*, IntPtr)	Creates a new span over the target unmanaged buffer. Clearly this is quite dangerous the length is not checked. But if this creation is correct, then all subsequent uses are correct.

Properties

Empty	Returns an empty TensorSpan<T>
FlattenedLength	The number of items in the span.
IsEmpty	Gets a value indicating whether this TensorSpan<T> is empty.
Item[ReadOnlySpan<IntPtr>]	Returns a reference to specified element of the TensorSpan.
Item[ReadOnlySpan<NIndex>]	Returns a reference to specified element of the TensorSpan.
Item[ReadOnlySpan<NRange>]	Returns a slice of the TensorSpan.
Lengths	Gets the length of each dimension in this TensorSpan<T>.
Rank	Gets the rank, aka the number of dimensions, of this TensorSpan<T>.
Strides	Gets the strides of this TensorSpan<T>

Methods

Clear()	Clears the contents of this span.
CopyTo(TensorSpan<T>)	Copies the contents of this span into destination span. If the source and destinations overlap, this method behaves as if the original values in a temporary location before the destination is overwritten.
Equals(Object)	Obsolete. This method is not supported as spans cannot be boxed. To compare two spans, use operator==.
Fill(T)	Fills the contents of this span with the given value.
FlattenTo(Span<T>)	Flattens the contents of this span into the provided Span<T>.
GetEnumerator()	Gets an enumerator for this span.
GetHashCode()	Obsolete. This method is not supported as spans cannot be boxed.
GetPinnableReference()	Returns a reference to the 0th element of the TensorSpan. If the TensorSpan is empty, returns null reference. It can be used for pinning and is required to support the use of span within a fixed statement.
Slice(ReadOnlySpan<NIndex>)	Returns a reference to specified element of the TensorSpan.
Slice(ReadOnlySpan<NRange>)	Forms a slice out of the given span
ToString()	For Span<T>, returns a new instance of string that represents the characters pointed to by the span. Otherwise, returns a String with the name of the type and the number of elements.
TryCopyTo(TensorSpan<T>)	Copies the contents of this span into destination span. If the source and destinations overlap, this method behaves as if the original values in a temporary location before the destination is overwritten.
TryFlattenTo(Span<T>)	Flattens the contents of this span into the provided Span<T>.

Operators

Equality(TensorSpan<T>, TensorSpan<T>)	Returns true if left and right point at the same memory and have the same length. Note that this does not check to see if the contents are equal.
Implicit(T[] to TensorSpan<T>)
Implicit(TensorSpan<T> to ReadOnlyTensorSpan<T>)	Converts a TensorSpan<T> to a ReadOnlyTensorSpan<T>.
Inequality(TensorSpan<T>, TensorSpan<T>)	Returns false if left and right point at the same memory and have the same length. Note that this does not check to see if the contents are equal.

Extension Methods

BroadcastTo<T>(TensorSpan<T>, TensorSpan<T>)	Broadcast the data from `source` to `destination`.
FilteredUpdate<T>(TensorSpan<T>, ReadOnlyTensorSpan<Boolean>, T)	Updates the `tensor` tensor with the `value` where the `filter` is true.
FilteredUpdate<T>(TensorSpan<T>, ReadOnlyTensorSpan<Boolean>, ReadOnlyTensorSpan<T>)	Updates the `tensor` tensor with the `values` where the `filter` is true. If dimensions are not the same an exception is thrown.
Reshape<T>(TensorSpan<T>, ReadOnlySpan<IntPtr>)	Reshapes the `tensor` tensor to the specified `lengths`. If one of the lengths is -1, it will be calculated automatically. Does not change the length of the underlying memory nor does it allocate new memory. If the new shape is not compatible with the old shape, an exception is thrown.
SequenceEqual<T>(TensorSpan<T>, ReadOnlyTensorSpan<T>)	Determines whether two sequences are equal by comparing the elements using IEquatable{T}.Equals(T).
SetSlice<T>(TensorSpan<T>, ReadOnlyTensorSpan<T>, ReadOnlySpan<NRange>)	Sets a slice of the given `tensor` with the provided `values` for the given `ranges`
Squeeze<T>(TensorSpan<T>)	Removes all dimensions of length one from the `tensor`.
SqueezeDimension<T>(TensorSpan<T>, Int32)	Removes axis of length one from the `tensor` for the given `dimension`. If the dimension is not of length one it will throw an exception.
ToString<T>(TensorSpan<T>, ReadOnlySpan<IntPtr>)	Creates a String representation of the TensorSpan<T>."/>
TryBroadcastTo<T>(TensorSpan<T>, TensorSpan<T>)	Broadcast the data from `tensor` to the smallest broadcastable shape compatible with `destination` and stores it in `destination` If the shapes are not compatible, false is returned.
Unsqueeze<T>(TensorSpan<T>, Int32)	Insert a new dimension of length 1 that will appear at the dimension position.

Applies to

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