## Function: COMMON-LISP:BIT-NOT [![package](https://img.shields.io/badge/Package-COMMON--LISP-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Function-5f9ea0.svg?style=social&colorA=999999)](../#function) [![clhs](https://img.shields.io/badge/CLHS-BIT--NOT-5f9ea0.svg?style=social&colorA=999999)](http://www.lispworks.com/documentation/HyperSpec/Body/f_bt_and.htm) [![github](https://img.shields.io/badge/GitHub-View_the_source-5f9ea0.svg?style=social&colorA=999999&logo=github)](https://github.com/sbcl/sbcl/blob/master/src/code/array.lisp/) > Performs a bit-wise logical NOT on the elements of BIT-ARRAY, > putting the results in RESULT-BIT-ARRAY. If RESULT-BIT-ARRAY is T, > BIT-ARRAY is used. If RESULT-BIT-ARRAY is NIL or omitted, a new array is > created. Both arrays must have the same rank and dimensions. ### Lambda list ```cl (sb-vm::bit-array &optional sb-vm::result-bit-array) ```