Xor operator

Used to perform a bitwise exclusion (exclusive-or) on two expressions.

Syntax:

result = expression1 Xor expression2

result

Any numeric variable.

expression1, expression2

Any expressions.

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

If expression1 is	And expression2 is	Then result is
True	True	False
True	False	True
False	True	True
False	False	False

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

If bit in expression1 is	And bit in expression2 is	Then result is
0	0	0
0	1	1
1	0	1
1	1	0

INFO

Xor always evaluates both operands. There is no short-circuit form because the result of an exclusive-or always depends on both inputs.

Example

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

Dim A, B, C, D, MyCheck
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 (bitwise comparison).

See Also

• And operator
• Or operator
• Not operator
• Eqv operator
• Operators