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Re: Logical vs. Bitwise boolean operators [message #29155]

Fri, 01 February 2002 13:17

James Kuyper
Messages: 425
Registered: March 2000

Senior Member

Jeff Guerber wrote:

> On Fri, 1 Feb 2002, James Kuyper wrote:
...
>> IF (!D.FLAGS AND 8) AND (ratio LE minrat) THEN BEGIN
>
>
> James, as an aside, this statement tries use AND both bitwise _and_
logically.
> But I understand your point...

I realized after I sent the message that I'd used a messy example. It
doesn't reflect any single, consistent mis-interpretation. I now fully
understand what's going on, but that code represents an intermediate
stage where I was just plain confused. :-)

...
> When confronted with a similar situation I like to use "IF ((!D.FLAGS
> AND 8) NE 0) ...", which is a little more general.

I used that construct two more times today, and by the time I'd written
it the third time, I'd figured out the advantage of "NE 0".

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		Re: Logical vs. Bitwise boolean operators By: James Kuyper on Fri, 01 February 2002 13:17
		Re: Logical vs. Bitwise boolean operators By: Jeff Guerber on Fri, 01 February 2002 12:47

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