[Pixman] [PATCH 1/8] Add doubly linked lists

Alan Coopersmith alan.coopersmith at oracle.com
Wed May 30 17:31:30 PDT 2012


On 05/30/12 04:41 PM, Søren Sandmann wrote:
> +#   define OFFSET_OF(type, member)					\
> +    ((unsigned long)(&(((type *)0)->member))
> +#endif

Why not use the offsetof(type, member) macro that C89 guarantees to be provided
by #include <stddef.h> instead of coding up your own?   Presumably GCC's
__builtin_offsetof is designed to mimic the standard C offsetof.

-- 
	-Alan Coopersmith-              alan.coopersmith at oracle.com
	 Oracle Solaris Engineering - http://blogs.oracle.com/alanc


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