AsMemory() [4/5]

static ReadOnlyMemory< char > System.MemoryExtensions.AsMemory ( this string? text, int start, int length )

inlinestatic

Definition at line 456 of file MemoryExtensions.cs.

    {
        if (text == null)
        {
            if (start != 0 || length != 0)
            {
                ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.start);
            }
            return default(ReadOnlyMemory<char>);
        }
        if ((ulong)((long)(uint)start + (long)(uint)length) > (ulong)(uint)text.Length)
        {
            ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.start);
        }
        return new ReadOnlyMemory<char>(text, start, length);
    }

References System.length, System.start, System.text, and System.ThrowHelper.ThrowArgumentOutOfRangeException().