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

[Bill Auerbach]

Stephane,

In the Wiki LWIP_PLATFORM_HTONS/L has 2 problems: 

1) Cases where HTONS is given  a value larger than 0xFFFF.  The >> needs an & 
0xFF added to it.
2) The x in the macro text must be (x).  x could be an expression whose 
precedence doesn't work out with the other operators in the macro.

Bill

>-----Original Message-----
>From: Stephane Lesage [mailto:address@hidden
>Sent: Saturday, February 06, 2010 6:53 PM
>To: Kieran Mansley; Simon Goldschmidt; David Empson; Mike Kleshov;
>Stephane Lesage; Bill Auerbach; address@hidden
>Subject: [bug #27352] Change ip_addr from struct to typedef (u32_t)
>
>
>Follow-up Comment #35, bug #27352 (project lwip):
>
>I updated http://lwip.wikia.com/wiki/Porting_for_an_OS#cc.h to explain
>endianness macros and structure packing optimization.
>
>By the way, I think we should separate cc.h and sys_arch documentations,
>as
>they obviously are independent (both .txt and wiki pages)
>
>Also, MEM_ALIGNMENT, MEMCPY and SMEMCPY should be moved to cc.h.
>
>
>
>
>
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