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).