net9.0
namespace System
{
    [DefaultMember("Item")]
    [NativeMarshalling(typeof(ReadOnlySpanMarshaller<?, ?>))]
    public readonly struct ReadOnlySpan<T>
    {
        public static ReadOnlySpan<T> CastUp<TDerived>(ReadOnlySpan<TDerived!> items)
            where TDerived, class, T;
    }
}
Design Reviews
.NET 9.0
Information specific to net9.0
Assembly

System.Runtime , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Preview The API is contained in a preview framework.
Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API

12/22/2024
An error has occurred. This application may no longer respond until reloaded. Reload 🗙