MemoryMarshal.CreateReadOnlySpan<T>(T, Int32) Method
Definition
Important
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Creates a new read-only span over a portion of a regular managed object.
public:
generic <typename T>
static ReadOnlySpan<T> CreateReadOnlySpan(T % reference, int length);public static ReadOnlySpan<T> CreateReadOnlySpan<T> (ref T reference, int length);public static ReadOnlySpan<T> CreateReadOnlySpan<T> (scoped ref T reference, int length);static member CreateReadOnlySpan : 'T * int -> ReadOnlySpan<'T>Public Shared Function CreateReadOnlySpan(Of T) (ByRef reference As T, length As Integer) As ReadOnlySpan(Of T)Type Parameters
- T
The type of the data items.
Parameters
- reference
- T
A reference to data.
- length
- Int32
The number of T elements that reference contains.
Returns
A read-only span.
Remarks
This method can be useful if part of a managed object represents a fixed array.
Warning
This method should be used with caution. It is dangerous because the length argument is not checked. Even though the ref is annotated as scoped, it will be stored into the returned span, and the lifetime of the returned span will not be validated for safety, even by span-aware languages.
