[lwip-devel] [bug #27352] Change ip_addr from struct to typedef (u32_t)

[Simon Goldschmidt]

Follow-up Comment #44, bug #27352 (project lwip):

I've just tried "typedef u32_t ip_addr_t" with my embedded compiler:

Unfortunately, gcc (nios2-elf-gcc, v3.4.1) does *not* warn about casting the
(possibly unaligned) IP address 'src' in struct ip_hdr to an ip_addr_t pointer
on the stack (which requires alignment).

Does anybody have an idea how to get such a warning? Without that, I think
it's too dangerous to use that typedef as we risk unaligned pointers which
would result in bad IP addresses...

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