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Forum Index : Microcontroller and PC projects : Problem with 5D integer array

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William Leue
Guru

Joined: 03/07/2020
Location: United States
Posts: 405
Posted: 08:07pm 10 Oct 2020
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I am getting "Error: Dimensions" when I try to use this


option default integer
option base 1

dim Stuff(12, 4, 2, 5, 3)

This is only 1440 integer values, surely not too large. According to the docs, MMBasic is supposed to support arrays with 5 dimensions.

The firmware version is 5.05.05

Any clues?

-Bill
 
twofingers

Guru

Joined: 02/06/2014
Location: Germany
Posts: 1677
Posted: 10:16pm 10 Oct 2020
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Hi Bill,

IMHO you found your first BUG! Congratulation!

With "Option Base 1" I get the mysterious error even for DIM Stuff(1) - after I executed your code -, but not always reproducible. Strange!

I get an error for this:_
option default integer
option base 1

dim integer test(1)


Without this both options:
option default integer
option base 1

I can execute
DIM stuff(1200,4,2,5)
without an issue, but DIM stuff(12,4,2,5,0) results in an (Dimension) error.

I have never encountered problems related to DIM in the past.

MMBasic CMM2_Beta - V5.05.06RC2

Michael
Edited 2020-10-11 08:31 by twofingers
causality ≠ correlation ≠ coincidence
 
William Leue
Guru

Joined: 03/07/2020
Location: United States
Posts: 405
Posted: 10:49pm 10 Oct 2020
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Ok well I'm glad it's not just some idiot mistake of mine. I'll be interested in hearing Peter's take on this.

-Bill
 
mkopack73
Senior Member

Joined: 03/07/2020
Location: United States
Posts: 261
Posted: 01:56am 11 Oct 2020
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  twofingers said  Hi Bill,

IMHO you found your first BUG! Congratulation!

With "Option Base 1" I get the mysterious error even for DIM Stuff(1) - after I executed your code -, but not always reproducible. Strange!

I get an error for this:_
option default integer
option base 1

dim integer test(1)


Without this both options:
option default integer
option base 1

I can execute
DIM stuff(1200,4,2,5)
without an issue, but DIM stuff(12,4,2,5,0) results in an (Dimension) error.

I have never encountered problems related to DIM in the past.

MMBasic CMM2_Beta - V5.05.06RC2

Michael



Ok, well, just a shot in the dark but:

If you ARE using OPTION BASE 1, then a dimension of value of 1 isn't actually a dimension - it's a single cell.

Without OPTION BASE 1 (ie BASE 0), then setting the value to 0 is again setting it to a single value which isn't an array then...



However, that doesn't explain why the OP's code didn't work.
 
matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10582
Posted: 07:58am 11 Oct 2020
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  Quote   DIM stuff(12,4,2,5,0) results in an (Dimension) error.

This looks like a day-1 MMBasic bug. Will liaise with Geoff and fix in next release

  Quote    If you ARE using OPTION BASE 1, then a dimension of value of 1 isn't actually a dimension - it's a single cell.


This correctly gives an error
 
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