keywordp

ToC

Allegro CL

ANSI Common Lisp

10 Symbols

10.2 Dictionary of Symbols

10.2.4 keywordp

Function

Syntax:

keywordp object

generalized-boolean

Arguments and Values:

object - an object.

generalized-boolean - a generalized boolean.

Description:

Returns true if object is a keyword₁; otherwise, returns false.

Examples:

 (keywordp 'elephant)  false
 (keywordp 12)  false
 (keywordp :test)  true
 (keywordp ':test)  true
 (keywordp nil)  false
 (keywordp :nil)  true
 (keywordp '(:test))  false
 (keywordp "hello")  false
 (keywordp ":hello")  false
 (keywordp '&optional)  false

See Also:

constantp, keyword, symbolp, symbol-package

Allegro CL Implementation Details:

None.