[Gambas-user] Object array code gives weird results

[ron]

On Friday 19 May 2006 12:35, Timothy Marshal-Nichols wrote:
> > PUBLIC SUB Parse_fdisk(sTemp AS String)
> >    DIM vDI AS NEW CDiskInfo
> >    DIM vPI AS NEW CPartInfo
> >    DIM arrTemp1 AS NEW String[]
> >    DIM arrTemp2 AS NEW String[]
> >    DIM pos AS Long
> >    DIM n AS Long
> >    DIM pcounter AS Long
> >
> >    arrTemp1 = Split(sTemp, Chr$(10))
> >
> >    FOR n = 0 TO arrTemp1.Max
> >       pos = InStr(arrTemp1[n], "/dev/")
> >       IF pos = 1 'Parse a partition.
> >          arrTemp2 = Split(arrTemp1[n], Space$(1), "", TRUE)
> >          INC pcounter

see next below


> >          vPI.Device = arrTemp2[0]
> >          vPI.Bootable = FALSE
> >          vPI.StartBlock = 0
> >          vPI.EndBlock = 1024
> >          vPI.Blocks = 25
> >          vPI.ID = "06"
> >          PartInfo.Push(vPI)
> 
> On the above line you a pushing an object. So at the end of the loop
> all items in the array are set to the same object.
----------------------------------------^^^^^^^^^^^^
> 


Here you add a vPI object to the PartInfo.
Because it should be every time a new fresh vPI object you need to 
create the new object.
Add before using vPI for *new* info storage a *new* instance of it

  vPI = New CPartInfo

You are now using all the time the same and only 1 vPI object !!

> To overcome the problem push the value of the object or create a new object
> with the value you want.
> 
> >          Form1.TextView1.Text &= "<br>" & PartInfo[pcounter - 1].Device
> >       END IF
> >    NEXT
> >
> >    FOR n = 0 TO PartInfo.Max
> 
> So on the line below you are always looking the same object. You
--------------------------------------------------^^^^^^^^^^^^

> always get the value you last set this object to.
---------------------------^^^^^^^^^^^^^^^^^^^^

> 
> You might not like this behaviour. But it is the same as in most
> programming languages with objects.
> 
> >       Form1.TextView1.Text &= "<br>" & PartInfo[n].Device
> >    NEXT
> >
> > END


Ron