bitwise.not
Description
Performs a bitwise NOT operation (one’s complement) on an integer, inverting all bits.
Syntax
flex.bitwise.not(a)
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
a |
number (integer) | Yes | The operand to invert |
Returns
Type: number (integer)
The result of the bitwise NOT operation (one’s complement).
Examples
Example 1: Basic NOT Operation
RETURN flex.bitwise.not(5) AS result
Output:
result
------
-6
(Binary: NOT 0101 = …11111010 in 32-bit two’s complement = -6)
Example 2: Inverting All Bits
RETURN flex.bitwise.not(0) AS result
Output:
result
------
-1
(All bits become 1 in two’s complement = -1)
Example 3: Double NOT Returns Original
WITH 42 AS value
RETURN flex.bitwise.not(flex.bitwise.not(value)) AS restored
Output:
restored
--------
42
Notes
- Operates on 32-bit signed integers in JavaScript
- Result uses two’s complement representation
- NOT operation inverts all bits including sign bit
- Formula:
~n = -(n + 1) - Less commonly used than AND, OR, XOR in typical applications
See Also
- bitwise.and - Bitwise AND operation
- bitwise.or - Bitwise OR operation
- bitwise.xor - Bitwise XOR operation
Frequently Asked Questions 2
What does flex.bitwise.not do?
It performs a bitwise NOT (one’s complement) operation, flipping every bit in the integer — 0s become 1s and 1s become 0s.
Why does bitwise.not return a negative number?
Because integers use two’s complement representation. Flipping all bits of a positive number produces its negative complement minus one. For example, flex.bitwise.not(5) returns -6.