## Function: SB-UNICODE:DIGIT-VALUE
[![package](https://img.shields.io/badge/Package-SB--UNICODE-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/code/target-unicode.lisp/) 

> Returns the Unicode digit value of CHARACTER or NIL if it doesn't exist.
> 
> Digit values are guaranteed to be integers between 0 and 9 inclusive.
> All characters with decimal digit values have the same digit value,
> but there are characters (such as digits of number systems without a 0 value)
> that have a digit value but no decimal digit value

### Lambda list
```cl
(character)
```