If it's nullable, then it can't be a boolean.
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Henry Minute wrote:
I can only come up with truelean or trilean.
Almost. There is Boost.Tribool[^] library. An example of use:
tribool a (true);
tribool b (false);
tribool c (indeterminate);if (indeterminate (a) && !b) do_something();
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goblinTech wrote:
No such beast exists,
That may well be true, but I have seen many such references.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Yeah, I know. The terminology used in describing nullable types and the misuderstanding it leads to is a bit of a pet hate, as you may well guess from my reply :-)
Rhys "I'd rather die on my feet than live on my knees"
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Buddhist bool
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Henry Minute wrote:
so why call it a nullable bool?
Anyone got a better name?A Boolean Nullable would be technically more accurate. -Richard
Hit any user to continue.
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Surely it should be called 'noolean'?
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair. nils illegitimus carborundum me, me, me
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Closest I can come up with is ternary. There is Balanced Ternary[^], but the "don't care" value is 0 (-1 false, +1 true) though null might better describe a don't "care state" ?
Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^] -
Closest I can come up with is ternary. There is Balanced Ternary[^], but the "don't care" value is 0 (-1 false, +1 true) though null might better describe a don't "care state" ?
Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^] -
I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
Don't come with that. It reminds me too much of a database where some (censored word) declared boolean columns as varchar(1) and used the letter 'X' as true and null as false. And of course his application failed when there was anything else than 'X' or null in those columns. No doubt that he also would have created a similar chaos if he had known that you can have nullable value types.
"Dark the dark side is. Very dark..." - Yoda ---
"Shut up, Yoda, and just make yourself another toast." - Obi Wan Kenobi -
How about a 'Bacon'? Seems as good a choice as any.
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
I like bullean
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
In Spanish a "trilero" is a guy who use three cards or pots to hide a small ball to cheat tourists in crowded streets... so avoid that name... if you don't avoid it one of your variables could go to jail... :rolleyes:
[www.tamelectromecanica.com] Robots, CNC and PLC machines for grinding and polishing.
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
It's tri-curious.
And sometimes when you're on, you're really f***ing on And your friends they sing along and they love you But the lows are so extreme that the good seems f***ing cheap And it teases you for weeks in its absence Rilo Kiley - "A Better Son/Daughter"
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In Spanish a "trilero" is a guy who use three cards or pots to hide a small ball to cheat tourists in crowded streets... so avoid that name... if you don't avoid it one of your variables could go to jail... :rolleyes:
[www.tamelectromecanica.com] Robots, CNC and PLC machines for grinding and polishing.
Joan Murt wrote:
In Spanish a "trilero" is a guy who use three cards or pots to hide a small ball
In America I believe they use one cup but two girls.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
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Joan Murt wrote:
In Spanish a "trilero" is a guy who use three cards or pots to hide a small ball
In America I believe they use one cup but two girls.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
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Joan Murt wrote:
In Spanish a "trilero" is a guy who use three cards or pots to hide a small ball
In America I believe they use one cup but two girls.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
X| :rolleyes:
[www.tamelectromecanica.com] Robots, CNC and PLC machines for grinding and polishing.
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Joan Murt wrote:
In Spanish a "trilero" is a guy who use three cards or pots to hide a small ball
In America I believe they use one cup but two girls.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
In "The Relational Model of Database Management v2" (a tome and a half), Codd introduces 4-valued logic, Yes, No, Maybe but Applicable, Maybe and Inapplicable. The distinction between the latter affects how aggregates apply (you can Count Applicable (or A-Marks), but not Inapplicable (I-Marks)). Unfortunately, by Codd's definitions, there are No RDBMS in existence. (There are many other improvements there, we would probably have no need for ORM's among other things). Doesn't answer your question of course ;-)
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Buddhist bool
The Buddhist Boole: inherits from System.Mind which implements Consciousness Interface: true == relative => true; false == relative => true; true != false => false; false != true => true;
"Reason is the natural order of truth; but imagination is the organ of meaning." C.S. Lewis
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It's tri-curious.
And sometimes when you're on, you're really f***ing on And your friends they sing along and they love you But the lows are so extreme that the good seems f***ing cheap And it teases you for weeks in its absence Rilo Kiley - "A Better Son/Daughter"
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I'm sure that a subject of such import must have been discussed here before, but if so, I missed it. If it can have more than two values it cannot really be a boolean value, so why call it a nullable bool? Anyone got a better name? I can only come up with truelean or trilean.
Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” I wouldn't let CG touch my Abacus! When you're wrestling a gorilla, you don't stop when you're tired, you stop when the gorilla is.
a "nullable boolean" is equivalent to "pointer-to-boolean", if it's null then you don't know the answer.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader." - John Quincy Adams
You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering” - Wernher von Braun