Not operator
Used to perform logical negation on an expression.
Syntax
result = Not expression
The Not operator syntax has these parts:
| Part | Description |
|---|---|
| result | Required; any numeric variable. |
| expression | Required; any expression. |
Remarks
The following table illustrates how result is determined.
| If expression is | Then result is |
|---|---|
| True | False |
| False | True |
| Null | Null |
In addition, the Not operator inverts the bit values of any variable and sets the corresponding bit in result according to the following table.
| If bit in expression is | Then bit in result is |
|---|---|
| 0 | 1 |
| 1 | 0 |
Example
This example uses the Not operator to perform logical negation on an expression.
Dim A, B, C, D, MyCheck
A = 10: B = 8: C = 6: D = Null ' Initialize variables.
MyCheck = Not(A > B) ' Returns False.
MyCheck = Not(B > A) ' Returns True.
MyCheck = Not(C > D) ' Returns Null.
MyCheck = Not A ' Returns -11 (bitwise comparison).
See also
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