#### 3.8.8 compiler-macro-function [Accessor]

`compiler-macro-function` name &optional environment ⇒ function

(setf (`compiler-macro-function` name &optional environment) new-function)

#### Arguments and Values::

name—a function name.

environment—an environment object.

function, new-function—a compiler macro function, or nil.

#### Description::

Accesses the compiler macro function named name, if any, in the environment.

A value of nil denotes the absence of a compiler macro function named name.

#### Exceptional Situations::

The consequences are undefined if environment is non-nil in a use of setf of compiler-macro-function.

#### See Also::

define-compiler-macro , Compiler Macros