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SubjectRe: [PATCH] 2.4.22pre10: {,un}likely_p() macros for pointers
Willy Tarreau wrote:
> So in any case, the !!(x) construct should be valid.

Yes, either of these is fine for pointers and integers alike:

#define likely(x) __builtin_expect ((x) != 0, 1)
#define unlikely(x) __builtin_expect ((x) != 0, 0)

#define likely(x) __builtin_expect (!!(x), 1)
#define unlikely(x) __builtin_expect (!!(x), 0)

-- Jamie
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