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Forum Index : Microcontroller and PC projects : DIM a(1) and OPTION BASE 1

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andreas

Senior Member

Joined: 07/12/2020
Location: Germany
Posts: 226

Posted: 08:54am 03 Dec 2024

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Hi,

when using OPTION BASE 1 I get an error when writing dim a(1).

[3] Dim a(n)
Error : Dimensions

OPTION BASE 1
n=1
DIM a(n)

If n>1 everything is fine.

I understand that the lowest index in an array is 0 when using OPTION BASE 0 and 1 when using OPTION BASE 1, but why do I need 2 values when using OPTION BASE 1?

I get the problem when reading the value of 'n' from a DATA statement by READ. The program has a DATA statement holding application data and n=1 could be a possible value for 'n'.

WebMite MMBasic RP2350A Edition V6.00.01RC1

-andreas
Edited 2024-12-03 18:57 by andreas

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10067

Posted: 09:19am 03 Dec 2024

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MMBasic doesn't allow single element arrays. I wish it did for reasons such as array multiplication but it doesn't. I don't think this is something that could be easily changed as it is fundamental to the way the variable table is built

andreas

Senior Member

Joined: 07/12/2020
Location: Germany
Posts: 226

Posted: 06:16pm 03 Dec 2024

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matherp said MMBasic doesn't allow single element arrays. I wish it did for reasons such as array multiplication but it doesn't. I don't think this is something that could be easily changed as it is fundamental to the way the variable table is built

ok - many thanks for answer!

-andreas

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