## Function: SB-INT:PARSE-OPTIONAL-ARG-SPEC
[![package](https://img.shields.io/badge/Package-SB--INT-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Function-5f9ea0.svg?style=social&colorA=999999)](../#function) [![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/compiler/parse-lambda-list.lisp/) 

> No description.

### Lambda list
```cl
(sb-c::spec &optional sb-c::default)
```