On Mar 4, 2010, at 12:42 PM, prashanth joshi wrote:

> thanks for the clarification.
> I was writing a function to read such 3 byte values and convert them to int. 
> Unaware that uint24 field is supported in C (I have seen uint24 field only in 
> wireshark).
> Now I am using the uint24 type.

Standard C doesn't have a uint24 data type (even C99 doesn't have uint24_t).  I 
suppose if you're using C on the Datacraft/Harris machines (no relation):

        http://bolt.beetlebolt.com/blog/?m=200706

you'd have a 24-bit data type, but most if not all machines capable of running 
Wireshark have 8-bit bytes and 32-bit or 64-bit registers.

Wireshark supports 24-bit integral-valued fields - but you put the values into 
32-bit variables.
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