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From: Gautier <gautier.demontmollin@maths.unine.ch>
Subject: Re: First time Ada has let me down
Date: 2000/10/25
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Date: 2000-10-25T00:00:00+00:00
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> the IP header length occupies the 4 LSB. Assuming p pointing to the
> byte offset,
> the length is just len = (*p)&0xf;
> the TCP header length occupies the 4 MSB. the length in this case
> is then  ((*p)&0xf0)>>4;
> Things just have to be easy in C, don't they. No wonder 99.99% of the
> IP stacks in the world are in C and not Ada.

Do you really think one can't write "x mod 16" or "x / 16" in Ada, Mr wv12 ? 
In fact things just have to be easy in C, and they don't - see the mess
of #includes escaped from the 1960s computing world...

______________________________________________________
Gautier  --  http://members.nbci.com/gdemont/gsoft.htm