(l-onnx-doc-BitwiseNot)=

# BitwiseNot


(l-onnx-op-bitwisenot-18)=

## BitwiseNot - 18

### Version

- **name**: [BitwiseNot (GitHub)](https://github.com/onnx/onnx/blob/main/docs/Operators.md#BitwiseNot)
- **domain**: `main`
- **since_version**: `18`
- **function**: `False`
- **support_level**: `SupportType.COMMON`
- **shape inference**: `True`

This version of the operator has been available
**since version 18**.

### Summary

Returns the bitwise not of the input tensor element-wise.

### Inputs

- **X** (heterogeneous) - **T**:

  Input tensor

### Outputs

- **Y** (heterogeneous) - **T**:

  Output tensor

### Type Constraints

* **T** in ( `tensor(int16)`, `tensor(int32)`, `tensor(int64)`, `tensor(int8)`, `tensor(uint16)`, `tensor(uint32)`, `tensor(uint64)`, `tensor(uint8)` ):

  Constrain input/output to integer tensors.