Xor Operator

Description

Used to perform a logical exclusion on two expressions.

Syntax

result = expression1 Xor expression2

The Xor operator syntax has these parts:

Part	Description

result	Any numeric variable.
expression1	Any expression.
expression2	Any expression.

Remarks

If one, and only one, of the expressions evaluates True, result is True. However, if either expression is a Null, result is also a Null. When neither expression is a Null, result is determined according to the following table:

*If expression1* is**	*And expression2* is**	*The result* is**

True	True	False
True	False	True
False	True	True
False	False	False

The Xor operator also performs a bit-wise comparison of identically positioned bits in two numeric expressions and sets the corresponding bit in result according to the following truth table:

*If bit in expression1* is**	*And bit in expression2* is**	*The result* is**

0	0	0
0	1	1
1	0	1
1	1	0

See Also

Operator Precedence.

Example

This example uses the Xor operator to perform logical exclusion on two expressions.

A = 10: B = 8: C = 6 : D = Null    ' Initialize variables.
MyCheck = A > B Xor B > C    ' Returns False.
MyCheck = B > A Xor B > C    ' Returns True.
MyCheck = B > A Xor C > B    ' Returns False.
MyCheck = B > D Xor A > B    ' Returns Null.
MyCheck = A Xor B    ' Returns 2 (bit-wise comparison).