What is with the V numbers?

[skysurf]

I have put in my time and read over 300 pages of programming books in the last 2 weeks. Im finally breaking down and just asking. What do the Vxx statements mean after # declarations?

I have a feeling I could find out from going through the source code /cringe, and I will if I have to, but I figured I would ask here first.


Sky

P.S. On a side note, I have ALWAYS wanted to learn to program but MQ is the very first thing to even remotely motivate me enough to learn, so when you answer my question make sure to send me in the right direction if you can, but dont give it all away hehe. Trying to learn this stuff is fun, but the Vxx's I just cant seem to figure out.

[ThatOtherGuy]

if you mean as in
#define RandomThingy v92
the v92 is teh variable you're assigning RandomThingy to
Kinda like
Dim RandomThingy String
in visual basic (censor: i'm an idiot; please ignore me)

[Doodman]

if you mean as in
#define RandomThingy v92
the v92 is teh variable you're assigning RandomThingy to
Kinda like
Dim RandomThingy String
in visual basic (censor: i'm an idiot; please ignore me)

Well, not exactly.

A little background:
Variables in MQ are numbered. .$v0, $v1, $v2, etc..
#define a b Will replace where ever 'a' is found with 'b'.

So:

Code: Select all

#define RandomThingy v92
/varset RamdomThingy 2
/echo $RandmonThingy

Is the same as:

Code: Select all

/varset v92 2
/echo $v92

But just more human readable.

Doodman

[Consilium]

I understand pound defines from my Java background but I don't understand the v... so this is just the way MQ is? And do the numbers matter or do they just have to be different? Also if I have an #include do the v's of that file have to be different?

Anyway.. I will probably answer this myself before someone answers it on these boards. Not to say you guys are slow...just stating that this is something that I should just try to see.

[Zeus]

Correct is a MQ thingie. Not sure if i'm correct on all of this but this is what I understand. There's a finite number of posible variables, v0-v99 v are normal variables, p are parameters, a are arrays, etc. The #define is what it's called a macro in C/C++ whenver it finds an occurrence of that test it substitutes for your macro. You don't need to define any variables they always exist, but if you want to give em a name to make it easier to read/debug then you use em. A good programming practice.