# Bitwise AND Assignment Operator (&=)

Performs a bitwise AND on the value of a variable and the value of an expression and assigns the result to the variable.

*result* **&=** *expression*

#### Arguments

*result*
- Any variable.
*expression*
- Any expression.

#### Remarks

Using this operator is exactly the same as specifying:

result = result & expression

The **&=** operator looks at the binary representation of the values of *result* and *expression* and does a bitwise AND operation on them. The output of this operation behaves like this:

0101 (result)
1100 (expression)
----
0100 (output)

Any time both of the expressions have a 1 in a digit, the result has a 1 in that digit. Otherwise, the result has a 0 in that digit.

#### Requirements

Version 1

#### See Also

& Operator | Operator Precedence | Operator Summary