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ANSI Common Lisp  11 Packages 11.2 Dictionary of Packages
| 11.2.14 unexport |
Function |
- Syntax:
-
unexport
symbols &optional package
 t
- Arguments and Values:
-
symbols - a designator for a list of symbols.
package - a package designator.
The default is the current package.
- Description:
-
unexport reverts external symbols in package to
internal status; it undoes the effect of export.
unexport works only on symbols
present
in package, switching them back to internal status.
If unexport is given a symbol that is
already accessible as an internal symbol in package,
it does nothing.
- Examples:
-
(in-package "COMMON-LISP-USER") #<PACKAGE "COMMON-LISP-USER">
(export (intern "CONTRABAND" (make-package 'temp)) 'temp) T
(find-symbol "CONTRABAND") NIL, NIL
(use-package 'temp) T
(find-symbol "CONTRABAND") CONTRABAND, :INHERITED
(unexport 'contraband 'temp) T
(find-symbol "CONTRABAND") NIL, NIL
- Side Effects:
-
Package system is modified.
- Affected By:
-
Current state of the package system.
- Exceptional Situations:
-
If unexport is given a symbol
not accessible in package at all,
an error of type package-error is signaled.
The consequences are undefined if package is the keyword package
or the common-lisp package.
- See Also:
-
export, Section 11.1 Package Concepts
- Allegro CL Implementation Details:
-
None.
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