Method CastUp

Namespace

Zyl.ExSpans

Assembly

ExSpans.Core.dll

CastUp<TDerived>(ReadOnlyExSpan<TDerived>)

Casts a read-only ExSpan of TDerived to a read-only ExSpan of T.

public static ReadOnlyExSpan<T> CastUp<TDerived>(ReadOnlyExSpan<TDerived> items) where TDerived : class?, T

Parameters

items ReadOnlyExSpan<TDerived>

The source read-only ExSpan. No copy is made.

Returns

ReadOnlyExSpan<T>

A read-only ExSpan with elements cast to the new type.

Type Parameters

TDerived

The element type of the source read-only ExSpan, which must be derived from T.

Remarks

This method uses a covariant cast, producing a read-only ExSpan that shares the same memory as the source. The relationships expressed in the type constraints ensure that the cast is a safe operation.