%SetInvalid function

Function
The function invalidates (sets the Invalid attribute) the value given by the parameter while the value type remains unchanged.
Declaration
UNIVAL  %SetInvalid(
   UNIVAL in expression
 )
Parameters
expressionOptional expression.
Note
The function may be used e.g. to invalidate any value.
Example
%SetInvalid(0)
Related topics
%IsNull

Related pages:

Implemented functions
Function arguments - types

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