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  ANSI Common Lisp   11 Packages   11.2 Dictionary of Packages

11.2.26 package-used-by-list Function

Syntax:
package-used-by-list package    used-by-list

Arguments and Values:
package - a package designator.

used-by-list - a list of package objects.

Description:
package-used-by-list returns a list of other packages that use package.

Examples:
 (package-used-by-list (make-package 'temp))  ()
 (make-package 'trash :use '(temp))  #<PACKAGE "TRASH">
 (package-used-by-list 'temp)  (#<PACKAGE "TRASH">)

Exceptional Situations:
Should signal an error of type type-error if package is not a package.

See Also:
use-package, unuse-package

Allegro CL Implementation Details:
None.

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