Re: basic BASIC question

In article <vnjat2$3hjku$1@dont-email.me>,
Chris Townley  <news@cct-net.co.uk> wrote:

On 31/01/2025 19:24, Dan Cross wrote:

In article <679d001e$0$713$14726298@news.sunsite.dk>,
Arne Vajhøj  <arne@vajhoej.dk> wrote:

On 1/31/2025 11:39 AM, Dave Froble wrote:

On 1/31/2025 10:18 AM, Arne Vajhøj wrote:

Is it common to use:
>
declare integer constant TRUE = -1
declare integer constant FALSE = 0
>
>
?

>
It works.  Doesn't really matter if declared a constant.  Zero is false,
anything else is true.  Using 1 vs -1 has been more my experience.

>
I got the impression that the manual/compiler prefer -1 over 1.
>
print not 0%
>
does print -1.

 
This sort of makes some sense when one considers the bit
representation of `-1` on a 2s complement machine (all bits 1).

>
That was my understanding, a bitwise True and False should return zero
(False)

Surely the same is true of 0 and 1, though?  Perhaps a bitwise
AND of some value and TRUE should never be 0 unless that value
is 0.

- Dan C.