Re: [tip:x86/mce] x86/bitops: Move BIT_64() for a wider use

[Peter Zijlstra]

On Wed, 2012-05-23 at 18:29 +0200, Peter Zijlstra wrote:
> If I remember my type rules correctly you'll get something like that
> with:
> 
> #define BIT(n)  ({ typeof(n) __n = (n); (__n < 32) ? (1UL << __n) : (1ULL << __n); })

OK, that doesn't work. Memory played tricks on me. Now I'll keep
wondering what was special about ?: and how I've seen it abused.

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