## Function: COMMON-LISP:ENDP [![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-ENDP-5f9ea0.svg?style=social&colorA=999999)](http://www.lispworks.com/documentation/HyperSpec/Body/f_endp.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/list.lisp/) > This is the recommended way to test for the end of a proper list. It > returns true if OBJECT is NIL, false if OBJECT is a CONS, and an error > for any other type of OBJECT. ### Lambda list ```cl (sb-impl::object) ```