Xor
Operator
For Boolean expressions, returns “true” if they have different values. For integer expressions, does a bitwise XOR operation.
Syntax
expression_1 Xor expression_2
Parts
expression_1
- A Boolean or integer expression.
expression_2
- A Boolean or integer expression.
Instructions
For Boolean expressions, the result is true only if expression_1
and expression_2
hold different values at the same time.
The table that follows shows how to find this result.
If expression_1 is |
And expression_2 is |
Then the result is |
---|---|---|
True | True | False |
True | False | True |
False | True | True |
False | False | False |
For bitwise operations, the operator Xor
compares each bit at the same position in the two numeric expressions.
The table that follows shows how to calculate the bit in the result.
If the bit in expression_1 is |
And the bit in expression_2 is |
Then the bit in the result is |
---|---|---|
1 | 1 | 0 |
1 | 0 | 1 |
0 | 1 | 1 |
0 | 0 | 0 |
Note: The logical and bitwise operators have lower precedence than the arithmetic and relational operators. Thus, we recommend that you put parentheses around bitwise operations to make sure they give correct results.
Examples
Var a = 255, b = 170, c = 85
Var a_xor_b = a Xor b
Var a_xor_c = a Xor c
Var b_xor_c = b Xor c
a |
255 (11111111) |
---|---|
b |
170 (10101010) |
c |
85 (01010101) |
a_xor_b |
85 (01010101) |
a_xor_c |
170 (10101010) |
b_xor_c |
255 (11111111) |