Required Language Features (ANSI and GNU Common Lisp Document)

Next: Documentation of Implementation-Dependent Features, Previous: Conforming Implementations, Up: Conforming Implementations

#### 1.5.1.1 Required Language Features

A conforming implementation shall accept all features (including deprecated features) of the language specified in this standard, with the meanings defined in this standard.

A conforming implementation shall not require the inclusion of substitute or additional language elements in code in order to accomplish a feature of the language that is specified in this standard.