Cast< TFrom, TTo >() [2/2]

static Span< TTo > System.Runtime.InteropServices.MemoryMarshal.Cast< TFrom, TTo > ( Span< TFrom > span )

inlinestatic

Type Constraints

TFrom	:	struct
TTo	:	struct

Definition at line 82 of file MemoryMarshal.cs.

                                                                           : struct where TTo : struct
    {
        if (RuntimeHelpers.IsReferenceOrContainsReferences<TFrom>())
        {
            ThrowHelper.ThrowInvalidTypeWithPointersNotSupported(typeof(TFrom));
        }
        if (RuntimeHelpers.IsReferenceOrContainsReferences<TTo>())
        {
            ThrowHelper.ThrowInvalidTypeWithPointersNotSupported(typeof(TTo));
        }
        uint num = (uint)Unsafe.SizeOf<TFrom>();
        uint num2 = (uint)Unsafe.SizeOf<TTo>();
        uint length = (uint)span.Length;
        int length2;
        if (num == num2)
        {
            length2 = (int)length;
        }
        else if (num == 1)
        {
            length2 = (int)(length / num2);
        }
        else
        {
            ulong num3 = (ulong)((long)length * (long)num) / (ulong)num2;
            length2 = checked((int)num3);
        }
        return new Span<TTo>(ref Unsafe.As<TFrom, TTo>(ref span._pointer.Value), length2);
    }

References System.length, System.length2, and System.ThrowHelper.ThrowInvalidTypeWithPointersNotSupported().