Fixed/variable length structure in c# and big endian conversion

Question

Struct {
 byte F1[2]
 SHORT F2
 byte F3[512]
} BPD


CBD
{
 SHORT CLENGTH
 byte DATA[]
}

Above are 2 c++ structure. Here SHORT is of 2 byte signed. What would be the best way to convert it into C#?

(Note that in 2nd struture length of DATA is uundefined.)

I have seen following two links.

http://stackoverflow.com/questions/415214/fixed-length-strings-or-structures-in-c

and

http://stackoverflow.com/questions/2871/reading-a-c-c-data-structure-in-c-from-a-byte-array

After reading data into structure i need to covert the short variable to big endian. (reversing bytes).

Answer 1

Only 'short' is needed to be converted. Array of bytes identical on big/little endian platform.

So, just read structures and do something like this:

data.F2 = ((uint)data.F2 >> 8) | ( ((uint)data.F2 & 0xFF) << 8);

and

data.CLENGTH = ((uint)data.CLENGTH >> 8) | ( ((uint)data.CLENGTH & 0xFF) << 8);

Answer 2

Solved myself.

Structures are good but if you are not going to modify any data classes are better to use. I have create classes in c# for c++ structure and for big to little endian conversion i have create 3 library functions and it works for me.

Thnaks everybody for the valuable input.