System.ReadOnlySpanExtensions.MeasureStringAdjustment C# (CSharp) Method

        private static IntPtr MeasureStringAdjustment()
        {
            string sampleString = "a";
            unsafe
            {
                fixed (char* pSampleString = sampleString)
                {
                    return Unsafe.ByteOffset<char>(ref Unsafe.As<Pinnable<char>>(sampleString).Data, ref Unsafe.AsRef<char>(pSampleString));
                }
            }
        }
    }