21 replies to this topic

[Rob Donovan]

You can use either, they both work the same....

Rob D.

[Richard Bassett]

If you think about it,
#v2 = - #v1
is really just syntactic sugar for
#v2 = 0 - #v1

As an semi-relevant aside, I think I once determined that a -ve "constant" such as -3 in ProIV is not a "separately stored number" but is in fact this unary-minus operator applied to the +ve constant 3.
You could in fact test this by applying the old "1=0" bug to change the value of the numeric literal 3 and I think you'll see the value of the numeric literal -3 also change as a result.
I'm sure you really wanted to know that

[Rob Donovan]

Excellent!!!

Indeed, with the 1 = 0 bug, the negative number is also affected.

Sorry.... I just had to test it

Rob.

[twallis]

Rob,

how did you test that 1 = 0 bug
have to have a look for myself
will try now

[twallis]

Ok I got it

Almost always use Toolkit and it would not let me enter 1
@MODX did though

[Mike Nicholson]

Ah, but IDE does. Perhaps you should do something about that Rob ;-)

So that's 1-0 to Toolkit, or 1-1, or 0-1... maybe ... depending how you code it ...

I guess Rob's too busy in Schlager bar to get much coding done now though ;-)

[twallis]

Thats not a bad idea Rob when you have finish those drinks.

Change IDE to not let literals be passed to globals unless it is input only.