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> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
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# Uint.bitwiseNot

> Bitwise NOT operation on Uint256 value

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## `Uint.bitwiseNot(value: BrandedUint256): BrandedUint256`

Bitwise NOT (complement) operation - flips all bits.

**Parameters:**

* `value: BrandedUint256` - Value to invert

**Returns:** `BrandedUint256` - Bitwise NOT result

**Example:**

```typescript theme={null}
import { Uint } from 'tevm'

const a = Uint(0xfn)
Uint.bitwiseNot(a)  // 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0

Uint.bitwiseNot(Uint.ZERO)  // MAX
Uint.bitwiseNot(Uint.MAX)   // ZERO
```

**Defined in:** [primitives/Uint/bitwiseNot.ts](https://github.com/evmts/voltaire/blob/main/src/primitives/Uint/bitwiseNot.ts)

## See Also

* [bitwiseAnd](/primitives/uint256/bitwise-and) - Bitwise AND
* [Bitwise operations](/primitives/uint256/bitwise) - Full bitwise reference