Eqv Operator

Description

Used to perform a logical equivalence on two expressions.

Syntax

result = expression1 Eqv expression2

The Eqv operator syntax has these parts

Part	Description

result	Required; any numeric variable.
expression1	Required; any expression.
expression2	Required; any expression.

Remarks

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	The result is

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

The Eqv 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	The result is

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

See Also

Operator precedence.

Example

This example uses the Eqv operator to perform logical equivalence on two expressions.

Dim A, B, C, D, MyCheck
A = 10: B = 8: C = 6: D = Null    ' Initialize variables.
MyCheck = A > B Eqv B > C            ' Returns True.
MyCheck = B > A Eqv B > C            ' Returns False.
MyCheck = A > B Eqv B > D            ' Returns Null.
MyCheck = A Eqv B                        ' Returns -3 (bitwise comparison).