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.
Applies to
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