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The _UNSIGNED prefix means that the variable cannot take negative values only positive (over or equal to 0).

Syntax: [_UNSIGNED] datatype

datatype can be any of the following: INTEGER, SINGLE, DOUBLE, LONG, STRING, _BIT, _BYTE, _INTEGER64, _FLOAT

Example: DIM intvariable AS _UNSIGNED INTEGER

See also: DIM, _DEFINE


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