On Tuesday 06 March 2007 14:34, Andi Kleen wrote:
> - return x;
> + int s;
> + u32 y;
> + u64 b;
> + u64 bs;
> +
> + y = 0;
> + for (s = 63; s >= 0; s -= 3) {
> + y = 2 * y;
> + b = 3 * y * (y+1) + 1;
> + bs = b << s;
> + if (x >= bs && (b == (bs>>s))) { /* avoid overflow */
> + x -= bs;
> + y++;
> + }
> + }
> + return y;
> }
>
Andi
<rant>
Let me see... You throw code like that and expect someone to actually
understand it in one year, and be able to correct a bug ?
</rant>
Please add something, an URL or even better a nice explanation, per favor...
Thank you
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