ServiceStack.StreamExtensions.Combine C# (CSharp) Метод

        public static byte[] Combine(this byte[] bytes, params byte[][] withBytes)
        {
            var combinedLength = bytes.Length + withBytes.Sum(b => b.Length);
            var to = new byte[combinedLength];

            Buffer.BlockCopy(bytes, 0, to, 0, bytes.Length);
            var pos = bytes.Length;

            foreach (var b in withBytes)
            {
                Buffer.BlockCopy(b, 0, to, pos, b.Length);
                pos += b.Length;
            }

            return to;
        }