OpenEuphoria

Re: 'Unknown' and three-valued logic (was: Example where Euphoria ...)

• Posted by dm31 at uow.edu.au Nov 25, 2002
• 453 views

|C intially chose to represent a int by 16 bits, with first bit as
|sign-bit. They could have reserved one bit as nil-bit (nil-flag),
|meaning a int would have been in the range +/- 16384.

And Programmers, like me, would not be very happy with our range oin
each data type been halved for a flag that we would RARELY use. I have
no problem with values not been initialised, as it is part of
programming. A little care saves a lot of debug time, and the times
that your nil, would be vital would be rare, considering the software
available so far today. Implementing a 3-state software architechure
on a 2 state system is the most effiecent idea.

I'm not saying 3-state logic would be useless, far from it. Just
wonder how the pro's and con's weight up in natively supporting it on
a 2-state machine....

Creating a package would be the best way to go, like the c++ code you
got from me Rom, when using it, you basically use it like it was a
native type.

Oh, btw, you can't call 3-state logic "boolean" 2 <=> 3... :P:P