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[BUG] Logical AND
02-01-2014, 07:57 PM
Post: #20
RE: [BUG] Logical AND
Hi Eddie,
(01-30-2014 01:49 PM)Eddie W. Shore Wrote:  I am beginning to realize that the AND, OR, and NOT from the Shift+6 menu are more meant for Boolean tests (true vs false) - while BITAND, BITOR, and BITNOT are for Boolean operations.
I don't know if it is a usage or not, but I call "Boolean" operations done at integer value level, and "bitwise" operations done at bit level.

AND, OR and NOT are said to be Boolean.
BITAND, BITOR, BITNOT and BITXOR are said to be bitwise (operations done at bit level.

So:
3 OR 5 => 1, Boolean as expected
BITOR(3,5) => 7, bitwise as expected
but
#3 OR #5 => #7, bitwise not as expected
BITOR(#3,#5) => #7, bitwise as expected

in order to get OR to act Boolean, one have to resort to:
(#3 <> #0) OR '#5 <> #0)

Unfortunate behavior!

Patrice
“Everything should be made as simple as possible, but no simpler.” Albert Einstein
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Messages In This Thread
[BUG] Logical AND - Terje Vallestad - 01-26-2014, 04:10 PM
RE: [BUG] Logical AND - Tim Wessman - 01-26-2014, 04:27 PM
RE: [BUG] Logical AND - Terje Vallestad - 01-26-2014, 04:45 PM
RE: [BUG] Logical AND - Tim Wessman - 01-26-2014, 07:49 PM
RE: [BUG] Logical AND - patrice - 01-26-2014, 04:59 PM
RE: [BUG] Logical AND - eried - 01-26-2014, 05:01 PM
RE: [BUG] Logical AND - Tugdual - 01-26-2014, 05:15 PM
RE: [BUG] Logical AND - patrice - 01-26-2014, 05:16 PM
RE: [BUG] Logical AND - Tugdual - 01-26-2014, 06:56 PM
RE: [BUG] Logical AND - parisse - 01-27-2014, 09:20 AM
RE: [BUG] Logical AND - Han - 01-28-2014, 12:02 AM
RE: [BUG] Logical AND - Tugdual - 01-27-2014, 06:37 PM
RE: [BUG] Logical AND - patrice - 01-27-2014, 06:42 PM
RE: [BUG] Logical AND - Tugdual - 01-27-2014, 10:53 PM
RE: [BUG] Logical AND - patrice - 01-27-2014, 11:15 PM
RE: [BUG] Logical AND - Terje Vallestad - 01-27-2014, 11:59 PM
RE: [BUG] Logical AND - Joe Horn - 01-28-2014, 06:03 AM
RE: [BUG] Logical AND - parisse - 01-28-2014, 07:32 AM
RE: [BUG] Logical AND - Eddie W. Shore - 01-30-2014, 01:49 PM
RE: [BUG] Logical AND - patrice - 02-01-2014 07:57 PM
RE: [BUG] Logical AND - Joe Horn - 02-02-2014, 05:07 AM



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