ReadOnlySpan<T>.CastUp<TDerived> Method
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Casts a read-only span of TDerived to a read-only span of T.
public:
generic <typename TDerived>
where TDerived : class, T static ReadOnlySpan<T> CastUp(ReadOnlySpan<TDerived> items);C#
public static ReadOnlySpan<T> CastUp<TDerived>(ReadOnlySpan<TDerived> items) where TDerived : class, T;static member CastUp : ReadOnlySpan<#'T> -> ReadOnlySpan<'T>Public Shared Function CastUp(Of TDerived As {Class, T}) (items As ReadOnlySpan(Of TDerived)) As ReadOnlySpan(Of T)- TDerived
The element type of the source read-only span, which must be derived from T.
- items
- ReadOnlySpan<TDerived>
The source read-only span. No copy is made.
A read-only span with elements cast to the new type.
This method uses a covariant cast, producing a read-only span that shares the same memory as the source. The relationships expressed in the type constraints ensure that the cast is a safe operation.
| Product | Versions |
|---|---|
| .NET | 9, 10 |
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