/// <summary>
/// Gets an UInt64 from the next 8 bytes in a byte array, starting at the specified index
/// </summary>
/// <param name="array">byte array</param>
/// <param name="startIndex">start index</param>
/// <param name="reverse">reverse the byte array, useful to quickly switch endiannes</param>
/// <returns>the uint64 value</returns>
public static ulong ToUInt64(byte[] array, int startIndex, bool reverse = false)
{
if (array.Length - startIndex < 8)
{
throw new ArgumentException("Array must be at least of length 8");
}
UInt64Struct uint64;
if (reverse)
{
uint64 = new UInt64Struct()
{
Byte7 = array[startIndex], Byte6 = array[++startIndex], Byte5 = array[++startIndex], Byte4 = array[++startIndex], Byte3 = array[++startIndex], Byte2 = array[++startIndex], Byte1 = array[++startIndex], Byte0 = array[++startIndex]
};
}
else
{
uint64 = new UInt64Struct()
{
Byte0 = array[startIndex], Byte1 = array[++startIndex], Byte2 = array[++startIndex], Byte3 = array[++startIndex], Byte4 = array[++startIndex], Byte5 = array[++startIndex], Byte6 = array[++startIndex], Byte7 = array[++startIndex]
};
}
return(uint64.UInt64);
}
/// <summary>
/// Gets the bytes from an UInt64
/// </summary>
/// <param name="value">uint64 value</param>
/// <returns>the bytes from the UInt64</returns>
public static byte[] GetBytes(ulong value, bool reverse = false)
{
UInt64Struct uint64 = new UInt64Struct()
{
UInt64 = value
};
if (reverse)
{
return(new byte[] { uint64.Byte7, uint64.Byte6, uint64.Byte5, uint64.Byte4, uint64.Byte3, uint64.Byte2, uint64.Byte1, uint64.Byte0 });
}
return(new byte[] { uint64.Byte0, uint64.Byte1, uint64.Byte2, uint64.Byte3, uint64.Byte4, uint64.Byte5, uint64.Byte6, uint64.Byte7 });
}
