Wireshark · Wireshark-dev: Re: [Wireshark-dev] packet-ieee802154.c compilation error

[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hello Guy,

Thanks for the extensive analysis of this issue. You come to the same conclusion 
 as I. ^ is converted into/handled as ~ which is not the same in this case. 
I'll see if I can create a test program showing this issue to file with the report.

Thanx,
Jaap

Guy Harris wrote:
> On Sep 2, 2008, at 2:04 PM, Maynard, Chris wrote:
>
> > Jaap,
> > I assume this is the line it's complaining about?:
> >
> > fcs_ok = (fcs == ieee802154_crc_tvb(tvb,
> > tvb_reported_length(tvb)-IEEE802154_FCS_LEN));
>
> So I think this is a GCC bug; you might want to file a bug either  
> against Debian or against GCC and note that "{unsigned short} ^  
> 0xFFFF" is not equivalent to "~{unsigned short}" in an "int longer  
> than short" environment (the first of those doesn't flip the upper N  
> bits of the promoted "unsigned short", the second of those does).