SETARRAY /Z bug

[x13]

Hi all.

I want to load a file into an array, then resize it.

TYPE fruit
banana
pear
cherry
coconut
strawberry
pineapple
orange
pomegranate
kiwi
peach

SETARRAY /R fruit data
SETARRAY data
data[10]

ECHO %@ARRAYINFO[data,5] ** total cells in array **
10

DO x=0 TO 9 (ECHO [%x]: %data[%x])
[0]: banana
[1]: pear
[2]: cherry
[3]: coconut
[4]: strawberry
[5]: pineapple
[6]: orange
[7]: pomegranate
[8]: kiwi
[9]: peach

SETARRAY /Z data[10,3]
SETARRAY data
data[10,3]

ECHO %@ARRAYINFO[data,5] ** total cells in array **
30

DO x=0 TO 9 (DO y=0 TO 2 (ECHO [%x,%y]: %data[%x,%y]))
[0,0]:
[0,1]:
[0,2]:
[1,0]:
[1,1]:
[1,2]:
[2,0]:
[2,1]:
[2,2]:
[3,0]:
[3,1]:
[3,2]:
[4,0]:
[4,1]:
[4,2]:
[5,0]:
[5,1]:
[5,2]:
[6,0]:
[6,1]:
[6,2]:
[7,0]:
[7,1]:
[7,2]:
[8,0]:
[8,1]:
[8,2]:
[9,0]:
[9,1]:
[9,2]:

Data is gone!

So I think there's a bug with SETARRAY /Z because I can add and remove rows and columns in arrays; but as soon as extra dimensions are added, then the array is cleared.

Anyone else can corroborate this?

Mark/x13

 

[vefatica]

It doesn't surprise me a bit. /Z shouldn't let you re-dimension (or the help should note the consequences).

 

[x13]

What do you mean Vince?

Seems to me that If the function is there, it should work for all resize operations.

Mark

 

[vefatica]

What do you mean Vince?

Seems to me that If the function is there, it should work for all resize operations.

Mark

I think of resizing and redimensioning as very different operations. My first impression (formed without much thought) was that the former was relatively easy and the latter relatively hard. We'll have to wait for Rex to chime in.

 

[x13]

I'm myself a programmer (in another life).

I get what you mean, but I took the /Z option as resizing, that is changing the number of rows/cols without losing data.
I'm sure a new option could be added to do this (i.e. /C(lear)) to erase an array after resizing it.

M.

 

[rconn]

SETARRAY /Z only supports changing the number of elements, not the number of dimensions. Changing the dimensions is considerably more difficult, and much more prone to confusion as to where the existing values should be moved.

 

[x13]

Ok.

However, the documentation says nothing about this limitation.

Only "/Z Resize an existing array"

Thanks.