namespace System { public static class Buffer { public static void BlockCopy(Array src, int srcOffset, Array dst, int dstOffset, int count); public static int ByteLength(Array array); public static byte GetByte(Array array, int index); public unsafe static void MemoryCopy(void* source, void* destination, long destinationSizeInBytes, long sourceBytesToCopy); public unsafe static void MemoryCopy(void* source, void* destination, ulong destinationSizeInBytes, ulong sourceBytesToCopy); public static void SetByte(Array array, int index, byte value); } }