Used to perform a logical equivalence on two expressions.
result = expression1 Eqv expression2
The Eqv operator syntax has these parts:
|
Part |
Description |
|
result |
Any numeric variable. |
|
expression1 |
Any expression. |
|
expression2 |
Any expression. |
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 bit-wise comparison of identically positioned bits in two numeric expressions and sets the corresponding bit in result according to the following truth 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 |
Operator Precedence.
This example uses the Eqv operator to perform logical equivalence on two expressions.
A = 10: B = 8: C = 6: D = Null ' Initialize variables.= A > B Eqv B > C ' Returns True.= B > A Eqv B > C ' Returns False.= A > B Eqv B > D ' Returns Null.= A Eqv B ' Returns -3 (bit-wise comparison).