Question that is kinda a riddle

[markyrocks]

I'm trying to figure out the autoit representation of the following c++ code

Int a=6;

Int& ref_a=a

So then if ref_a changes a would change aswell. 

I'm essentially interested in taking an unknown variable passed into my function be an alias to a element inside of an array lol.  So that if the variable value passed into my function changes after the function is exited the value inside of the array element would change aswell.   

So in short

$a=3

Func($a)

Array[1]=$a

End func

Then if the value of $a changed after the function so would the value in the  element in the array.... I know it's a longshot but I figured it's worth a post.

I've used byref and that works great inside functions but I'm talking about outside of a function. Or possibly some other function.

[jdelaney]

Something like this I guess

$a = 3
Local $aArray[1] = ["a"]
ConsoleWrite(Eval($aArray[0]) & @CRLF)
$a = 6
ConsoleWrite(Eval($aArray[0]) & @CRLF)

setAVariable($a, 25)
ConsoleWrite(Eval($aArray[0]) & @CRLF)


Func setAVariable(ByRef $a, $i)
    $a = $i
EndFunc

output

3

6

25

Edited January 10, 2020 by jdelaney

[markyrocks]

3 hours ago, jdelaney said:

Something like this I guess

$a = 3
Local $aArray[1] = ["a"]
ConsoleWrite(Eval($aArray[0]) & @CRLF)
$a = 6
ConsoleWrite(Eval($aArray[0]) & @CRLF)

setAVariable($a, 25)
ConsoleWrite(Eval($aArray[0]) & @CRLF)


Func setAVariable(ByRef $a, $i)
    $a = $i
EndFunc

output

3

6

25

this is working,  its definitely a move in the right direction.  Thankyou its very tricky.  

 

#include <Array.au3>


Global $array[1]=['temp'] , $UnknownVariable="random value", $temp


_aFunction($UnknownVariable)
ConsoleWrite(eval($array[0]))
;~ _ArrayDisplay($array)

$UnknownVariable=4456

_aFunction($UnknownVariable)
;~ _ArrayDisplay($array)
ConsoleWrite(eval($array[0]))

_aFunction("34235")
ConsoleWrite(eval($array[0]))
;~ _ArrayDisplay($array)


func _aFunction($var)
$temp=$var

EndFunc

this technique is sweet and I appreciate it for what it is but it still doesn't off the implicit connection im looking for.  I'm basically looking for this

int a=5;

int* b=&a;

*b=10;

at this point int a would also be =10.  This is part of the downside of not having access to variable pointers bc theres no way to monitor if a variable has changed without adding in some kinda constant loop that the whole point was to just monitor variables that had been passed into a previous function.  An the only way to make the connection is by forcing the user to pass the original variable without any value except for the string of its name.   I've seen the question asked about turning a variable name into a string b4 and apparently thats not possible?

 

 

 

 

 

Edited January 10, 2020 by markyrocks

[Gianni]

I don't know if the following is an appropriate way of using @genius257's "AutoItObject Pure AutoIt", and if this way can be useful to you, but this script shows how to "clone" "mirror" a variable (or better, an object)

; https://www.autoitscript.com/forum/topic/185720-autoitobject-pure-autoit/
#include <AutoItObject_Internal.au3>

$a = IDispatch()

$b = $a

$a.value = 1

MsgBox(0, '', $b.value)

$b.value = 0

MsgBox(0, '', $a.value)

 

Edited January 11, 2020 by Chimp

[argumentum]

On 1/9/2020 at 5:55 PM, markyrocks said:

the autoit representation of the following c++ code

Well, this is all linear, so.., anything that changes, will change in chronological order ( unless is Adlib or a registered call, but then use flags/globals ).
So don't get too caught up in the ways of C++ while scripting AutoIt.

My 2 cents