C++ to PB

[chippy73]

Anybody help with this ?

I need to convert this:- ***Array[] to PB. This is a pointer to a pointer to a pointer to an array.

Also this:- something->that This is something to do with objects.


Any help welcomed.

Alan

[blueznl]

the first one would be something like PeekL(PeekL(PeekL(...)))

the second one... ain't got a clue

[LarsG]

Anybody help with this ?

I need to convert this:- ***Array[] to PB. This is a pointer to a pointer to a pointer to an array.

No.. that's just nasty!!

Also this:- something->that This is something to do with objects.

That's a way of accessing a field or procedure in a class (structure)... OO stuff..
PB is not able to do this stuff easily (yet), without mocking around like crazy with interfaces and stuff...
I guess you'll have to look up Interface in the help file..
Basically what you have to do is to make an interface with integer fields,
which in turn have to be used as pointers to a procedure, then to be used in a structure..
(I hope I got it right)

[traumatic]

It's pretty much impossible to translate this without any further code.

something->that can be used as a reference to a pointer to a structure or to a class.
If it's not a pointer to a class it may simply be *something\that in PB.

[chippy73]

This is typical of the code that I am trying to convert to PB.....

Code: Select all

 Idx=0
    While Idx<SymbolsPerLine
      Idx=Idx+1
      Symbol[Idx]->ClearCorrection()
      Symbol[Idx]->Scan_Init()
    Wend
    For(Idx=0: Idx<SymbolsPerLine: Idx++)
        CorrectSymbol(Idx)
        Idx=0
        While Idx<SymbolsPerLine
          Idx=Idx+1
          Symbol[Idx]->AddCorrection(Weight);
          Symbol[Idx]->Decode()
        Wend

Hope that helps

Alan

[traumatic]

Ok, then it's like LarsG said => OOP

[GedB]

For ***Array use somthing like this:

Code: Select all

Structure StaticArray
  Values.l[5]
EndStructure

DefType.StaticArray SA
SA\Values[0] = 1
SA\Values[1] = 2
SA\Values[2] = 4
SA\Values[3] = 8
SA\Values[4] = 16

*ThirdPointer = @SA
*SecondPointer = @*ThirdPointer
*FirstPointer = @*SecondPointer

;Note that we are using a pointer (begins with *) so only two peeks are needed to go 3 pointers deep.
*ReferencingSA.StaticArray =  PeekL(PeekL(*FirstPointer)) 
Debug *ReferencingSA\Values[0]
Debug *ReferencingSA\Values[1]
Debug *ReferencingSA\Values[2]
Debug *ReferencingSA\Values[3]
Debug *ReferencingSA\Values[4]
Debug *ReferencingSA\Values[5]

Structure ThreePointersDeep

For something->that you'll want to use an Interface.

If you have the class declaration then converting this to an Interface isn't too difficult. Take a look at the following posts:

An example using interfaces.
viewtopic.php?t=9553&highlight=ipbfriendly

An example of converting some complex C++ classes to PB:
viewtopic.php?t=11827&highlight=winnie

[chippy73]

Thanks everyone for your comments.

It's getting very complex for my poor ol' "grey cells". I need to sleep on it and take another look tomorrow.

Thanks again.

Alan