Help with C function

[Kokie]

I have problem with converting this C Function to VB.NET:

unsigned int GetCRC (char *buff)
{
int pos = 0;
int crc = 0;
while (buff [pos] != '\0')
{
crc ^= ((unsigned int)(unsigned char)(buff [pos]) << (pos % 9)) &
0x0ffff;
pos++;
}
return crc;
}

It uses Bit_Shift_Left which is not supportet in VB.NET

Any help will be appreciated.

Tx,

Kokie

 

[Mattias Sjögren]

It uses Bit_Shift_Left which is not supportet in VB.NET

Yes it is, since version 7.1 (VS 2003).

If you have to use 7.0 you can just multiply by 2^shiftcount.



Mattias

 

[Guest]

Are you just looking for a CRC class? If so, I have written my own one.

Also, the bit shift is available to VB.NET 2003 because I used it to decrypt
the Windows Product ID(?????-?????-?????-?????-?????) a few months back.

 

[Kokie]

I needed CRC functionality, but I think that I did it

Tx anyway,

Kokie