XOR Operator

Used to perform a logical exclusion on two expressions.

Syntax

[result =] expression1 Xor expression2

The Xor operator syntax has these parts:

Part Description
result Optional; any numeric variable.
expression1 Required; any expression.
expression2 Required; any expression.

Remarks

If one, and only one, of the expressions evaluates to True, result is True. The following table illustrates how result is determined:

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

The Xor operator performs as both a logical and bitwise operator. A bit-wise comparison of two expressions using exclusive-or logic to form the result, as shown in the following table:

If expression1 is And expression2 is The result is
0 0 0
0 1 1
1 0 1
1 1 0

Example

Dim A, B, C, D, MyCheck
A = 10: B = 8: C = 6: D = Null ' Initialize variables.
MyCheck = A > B Xor B > C ' Returns False.
trace MyCheck
MyCheck = B > A Xor B > C ' Returns True.
trace MyCheck
MyCheck = B > A Xor C > B ' Returns False.
trace MyCheck
MyCheck = B > D Xor A > B ' Returns False.
trace MyCheck
MyCheck = A Xor B ' Returns 2 (bitwise comparison).
trace MyCheck

 

See Also

Operators