On Fri, Apr 30, 2004 at 14:37:59 +0530, syedk wrote:
> Hi All,
>
> This is the structure declaration of IP Header. Can you tell me how
> little endian and big endian come into picture in the case of a
> byte. U can find this declaration in
> /usr/src/linux-2.4.18-14/include/linux/ip.h.
>
> struct iphdr {
> #if defined(__LITTLE_ENDIAN_BITFIELD)
> __u8 ihl:4,
> version:4;
> #elif defined (__BIG_ENDIAN_BITFIELD)
> __u8 version:4,
> ihl:4;
You sure know, what the :4 modifier means. So you should know, what's
the difference between these two declaratinons. And thus know, what in
the compiler is affected by endianity.
-------------------------------------------------------------------------------
Jan 'Bulb' Hudec <bulb@ucw.cz>
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