String Array Storage Issue?

[RH610]

I have a VB5 program that read a large, comma-delimited file using the input # command. For example:

for i = 1 to 12: input #1, S$(i): next

There are about 80 arrays of the above size, most of which are numeric.
After each line I redimension all the arrays.
Problem is that after x number of lines have been read I will find that an element of the array that should be null (i.e. nothing between 2 commas) contains something that looks like it came from some previous input. It's as if I have not cleared the arrays (although I have).

This code worked fine in Microsoft BASIC, but doesn't seem to in VB. Is there some type of memory or storage issue going on here? I don't know.

Thank You

 

[Johnomill]

Hi,

I tried to reproduce your situation and found nothing strange. I made a file (c:\map1.csv) with:
1,2,3,4,,6,7,8,9,10,11,12

and used this code to test it:

Option Base 1 'array starting with 1 in stead of 0

Sub Test()

Dim Values()

f = FreeFile
Open "C:\map1.csv" For Input As #f

For i = 1 To 12

ReDim Preserve Values(i)
Input #f, Value
Values(i) = Value

Next i

Close #f

End Sub

Best regards,

John