Purpose
The AND operator works as both a logical and a bitwise arithmetic operator.
Syntax
p AND q
Using AND as a logical operator
AND returns TRUE (non-zero) if (and only if) both its operands are TRUE. The AND truth table looks like this:
|
Truth Table |
||
|
x |
y |
x AND y |
|
T |
T |
T |
|
T |
F |
F |
|
F |
T |
F |
|
F |
F |
F |
Using AND as a bitwise arithmetic operator
AND masks clear selected bits of an integral-class value without affecting the other bits. For example, to clear the most-significant (leftmost) 2 bits in the integer value &H9700, AND it with &H3FFF. That is, the mask contains all 1s, except for the bit positions you want to force to 0:
See also
Arithmetic Operators, EQV, IMP, ISFALSE, ISTRUE, NOT, OR, XOR