Operator Xor Exclusive Disjunction

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Operator Xor (Exclusive Disjunction)

Returns the bitwise-xor (exclusive disjunction) of two numeric values

Syntax

Declare Operator Xor ( ByRef lhs As T1, ByRef rhs As T2 ) As Ret

Parameters

• lhs
• T1
• rhs
• T2
• Ret
• T1
• T2

Description

This operator returns the bitwise-exclusion of its operands, a logical operation that results in a value with bits set depending on the bits of the operands (for conversion of a boolean to an integer, false or true boolean value becomes 0 or -1 integer value).

The truth table below demonstrates all combinations of a boolean-exclusion operation:

Lhs Bit	Rhs Bit	Result
0	0	0
1	0	1
0	1	1
1	1	0

No short-circuiting is performed - both expressions are always evaluated.

The return type depends on the types of values passed. Byte, UByte and floating-point type values are first converted to Integer. If the left and right-hand side types differ only in signedness, then the return type is the same as the left-hand side type (T1), otherwise, the larger of the two types is returned. Only if the left and right-hand side types are both Boolean, the return type is also Boolean.

This operator can be overloaded for user-defined types.

Return Value

Returns the bitwise-xor of the two operands.

Remarks

Usage

result = lhs Xor rhs

Dialect Differences

• In the -lang qb dialect, this operator cannot be overloaded.

Differences from QB

• None

See also

• Operator Truth Tables

Examples

' Using the XOR operator on two numeric values

Dim As UByte numeric_value1, numeric_value2

numeric_value1 = 15 '00001111

numeric_value2 = 30 '00011110

'Result =  17  =     00010001

Print numeric_value1 Xor numeric_value2

Sleep

' Using the XOR operator on two conditional expressions

Dim As UByte numeric_value1, numeric_value2

numeric_value1 = 10

numeric_value2 = 15

If numeric_value1 = 10 Xor numeric_value2 = 20 Then Print "Numeric_Value1 equals 10 or Numeric_Value2 equals 20"

Sleep

' This will output "Numeric_Value1 equals 10 or Numeric_Value2 equals 20"

' because only the first condition of the IF statement is true

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Category: Operators
Kind: operator

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