NextBytes() [2/2]

unsafe override void System.Random.XoshiroImpl.NextBytes ( Span< byte > buffer )

inline

Definition at line 575 of file Random.cs.

        {
            ulong num = _s0;
            ulong num2 = _s1;
            ulong num3 = _s2;
            ulong num4 = _s3;
            while (buffer.Length >= 8)
            {
                Unsafe.WriteUnaligned(ref MemoryMarshal.GetReference(buffer), BitOperations.RotateLeft(num2 * 5, 7) * 9);
                ulong num5 = num2 << 17;
                num3 ^= num;
                num4 ^= num2;
                num2 ^= num3;
                num ^= num4;
                num3 ^= num5;
                num4 = BitOperations.RotateLeft(num4, 45);
                buffer = buffer.Slice(8);
            }
            if (!buffer.IsEmpty)
            {
                ulong num6 = BitOperations.RotateLeft(num2 * 5, 7) * 9;
                byte* ptr = (byte*)(&num6);
                for (int i = 0; i < buffer.Length; i++)
                {
                    buffer[i] = ptr[i];
                }
                ulong num7 = num2 << 17;
                num3 ^= num;
                num4 ^= num2;
                num2 ^= num3;
                num ^= num4;
                num3 ^= num7;
                num4 = BitOperations.RotateLeft(num4, 45);
            }
            _s0 = num;
            _s1 = num2;
            _s2 = num3;
            _s3 = num4;
        }

References System.Random.XoshiroImpl._s0, System.Random.XoshiroImpl._s1, System.Random.XoshiroImpl._s2, System.Random.XoshiroImpl._s3, System.buffer, and System.Numerics.BitOperations.RotateLeft().