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OPTION BASE

Sets the default lower array bound.

Syntax

OPTION BASE {0 1}

Comments

If you don’t specify the default bound, QBasic uses 0.

You can specify only one OPTION BASE statement per module.

For more flexibility, use the TO clause in the DIM statement.

Example

OPTION BASE 0
DIM a(1 TO 20)
DIM b(20)
PRINT LBOUND(a). LBOUND(b)
PRINT UBOUND(a), UBOUND(b)

Results in:

1           0
20          20

See Also