ReadOnlyTensorSpan<T> Struct
Definition
Important
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ReadOnlyTensorSpan 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 ReadOnlyTensorSpan
[System.Diagnostics.CodeAnalysis.Experimental("SYSLIB5001", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public readonly ref struct ReadOnlyTensorSpan<T>
[<System.Diagnostics.CodeAnalysis.Experimental("SYSLIB5001", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type ReadOnlyTensorSpan<'T> = struct
Public Structure ReadOnlyTensorSpan(Of T)
Type Parameters
- T
- Inheritance
- Attributes
Constructors
ReadOnlyTensorSpan<T>(Array) |
Creates a new ReadOnlyTensorSpan<T> over the provided Array. The new ReadOnlyTensorSpan<T> will have a rank of 1 and a length equal to the length of the provided Array. |
ReadOnlyTensorSpan<T>(Array, ReadOnlySpan<Int32>, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>) |
Creates a new ReadOnlyTensorSpan<T> over the provided Array using the specified start offsets, lengths, and strides. If the strides are not provided, they will be automatically calculated. |
ReadOnlyTensorSpan<T>(Array, ReadOnlySpan<NIndex>, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>) |
Creates a new ReadOnlyTensorSpan<T> over the provided Array using the specified start offsets, lengths, and strides. If the strides are not provided, they will be automatically calculated. |
ReadOnlyTensorSpan<T>(ReadOnlySpan<T>) |
Creates a new ReadOnlyTensorSpan<T> over the provided ReadOnlySpan<T>. The new ReadOnlyTensorSpan<T> will have a rank of 1 and a length equal to the length of the provided ReadOnlySpan<T>. |
ReadOnlyTensorSpan<T>(ReadOnlySpan<T>, ReadOnlySpan<IntPtr>, ReadOnlySpan<IntPtr>) |
Creates a new ReadOnlyTensorSpan<T> over the provided Span<T> using the specified lengths and strides. If the strides are not provided, they will be automatically calculated. |
ReadOnlyTensorSpan<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. |
ReadOnlyTensorSpan<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. |
ReadOnlyTensorSpan<T>(T[]) |
Creates a new span over the entirety of the target array. |
ReadOnlyTensorSpan<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). |
ReadOnlyTensorSpan<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). |
Properties
Empty |
Returns a 0-length read-only span whose base is the null pointer. |
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 ReadOnlyTensorSpan. |
Item[ReadOnlySpan<NIndex>] |
Returns a reference to specified element of the ReadOnlyTensorSpan. |
Item[ReadOnlySpan<NRange>] |
Returns a slice of the ReadOnlyTensorSpan. |
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
CastUp<TDerived>(ReadOnlyTensorSpan<TDerived>) |
Casts a read-only span of |
CopyTo(TensorSpan<T>) |
Copies the contents of this read-only 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==. |
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 ReadOnlyTensorSpan. If the ReadOnlyTensorSpan 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() |
Returns a String with the name of the type and the number of elements. |
TryCopyTo(TensorSpan<T>) |
Copies the contents of this read-only 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(ReadOnlyTensorSpan<T>, ReadOnlyTensorSpan<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 ReadOnlyTensorSpan<T>) | |
Inequality(ReadOnlyTensorSpan<T>, ReadOnlyTensorSpan<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>(ReadOnlyTensorSpan<T>, TensorSpan<T>) |
Broadcast the data from |
Reshape<T>(ReadOnlyTensorSpan<T>, ReadOnlySpan<IntPtr>) |
Reshapes the |
SequenceEqual<T>(ReadOnlyTensorSpan<T>, ReadOnlyTensorSpan<T>) |
Determines whether two sequences are equal by comparing the elements using IEquatable{T}.Equals(T). |
Squeeze<T>(ReadOnlyTensorSpan<T>) |
Removes all dimensions of length one from the |
SqueezeDimension<T>(ReadOnlyTensorSpan<T>, Int32) |
Removes axis of length one from the |
ToString<T>(ReadOnlyTensorSpan<T>, ReadOnlySpan<IntPtr>) |
Creates a String representation of the ReadOnlyTensorSpan<T>."/> |
TryBroadcastTo<T>(ReadOnlyTensorSpan<T>, TensorSpan<T>) |
Broadcast the data from |
Unsqueeze<T>(ReadOnlyTensorSpan<T>, Int32) |
Insert a new dimension of length 1 that will appear at the dimension position. |