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| Subject | Re: Logic problem: need better logic for desired thruth table. |
| Date | Fri, 29 May 2015 08:09:50 -0400 |
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On Thu, May 28, 2015, at 23:48, Chris Angelico wrote: > On Fri, May 29, 2015 at 1:20 PM, <random832@fastmail.us> wrote: > > The possibility of spelling these with the comparison operators, as some > > have suggested, is a consequence of Python's implementation where True > > == 1 and False == 0. In other languages bool may not be relatable (or at > > least not orderable), or False may be == -1. > > True. Gah. I said "False may be -1", but what I *meant* was that *True* may be -1: something that has some merit for bitwise logic (-1 is all-bits-1). This is, for example, used in pre-.NET incarnations of Visual Basic (and COM's VARIANT_BOOL type inherits from this). VB, incidentally, has its own spellings for these operators, with the "Imp" and "Eqv" operators.
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Re: Logic problem: need better logic for desired thruth table. random832@fastmail.us - 2015-05-29 08:09 -0400
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