Re: bit operations

>>>>> "Oliver" == Oliver Vecernik <vecernik@aon.at> writes:

Oliver> "Randal L. Schwartz" wrote:
>>
>> >>>>> "Oliver" == Oliver Vecernik <vecernik@aon.at> writes:
>>
>> >> Say I wanna check if 8 (1xxx) and 2 (xx1x) is set, how do I do that?!
>>
Oliver> Sorry, I didn't read the whole question first:
>>
Oliver> select * from table where ((flags & 8) <> 0) and ((flags & 2) <> 0);
>>
>> In the old days, we spelled that as flags & 10 = 10. :)  Wouldn't that
>> work just as well?

Oliver> As far as I know testing for <> 0 could be calculated faster. Does
Oliver> anybody know if this is true?

But that's wrong for flags & 10.
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