64 lines
4.9 KiB
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64 lines
4.9 KiB
HTML
<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Function UNUSE-PACKAGE</TITLE>
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<A NAME="unuse-package"><I>Function</I> <B>UNUSE-PACKAGE</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>unuse-package</B> <I>packages-to-unuse <TT>&optional</TT> package</I> => <I><A REL=DEFINITION HREF="a_t.htm#t"><B>t</B></A></I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>packages-to-unuse</I>---a <A REL=DEFINITION HREF="26_glo_d.htm#designator"><I>designator</I></A> for a <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> of <A REL=DEFINITION HREF="26_glo_p.htm#package_designator"><I>package designators</I></A>. <P>
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<I>package</I>---a <A REL=DEFINITION HREF="26_glo_p.htm#package_designator"><I>package designator</I></A>. The default is the <A REL=DEFINITION HREF="26_glo_c.htm#current_package"><I>current package</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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<A REL=DEFINITION HREF="#unuse-package"><B>unuse-package</B></A> causes <I>package</I> to cease inheriting all the <A REL=DEFINITION HREF="26_glo_e.htm#external_symbol"><I>external symbols</I></A> of <I>packages-to-unuse</I>; <A REL=DEFINITION HREF="#unuse-package"><B>unuse-package</B></A> undoes the effects of <A REL=DEFINITION HREF="f_use_pk.htm#use-package"><B>use-package</B></A>. The <I>packages-to-unuse</I> are removed from the <A REL=DEFINITION HREF="26_glo_u.htm#use_list"><I>use list</I></A> of <I>package</I>. <P>
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Any <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbols</I></A> that have been <I>imported</I> into <I>package</I> continue to be <A REL=DEFINITION HREF="26_glo_p.htm#present"><I>present</I></A> in <I>package</I>. <P>
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<P><B>Examples:</B><P>
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<P>
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<PRE>
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(in-package "COMMON-LISP-USER") => #<PACKAGE "COMMON-LISP-USER">
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(export (intern "SHOES" (make-package 'temp)) 'temp) => T
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(find-symbol "SHOES") => NIL, NIL
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(use-package 'temp) => T
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(find-symbol "SHOES") => SHOES, :INHERITED
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(find (find-package 'temp) (package-use-list 'common-lisp-user)) => #<PACKAGE "TEMP">
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(unuse-package 'temp) => T
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(find-symbol "SHOES") => NIL, NIL
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</PRE>
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</TT> <P>
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<P><B>Side Effects:</B><P>
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<P>
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The <A REL=DEFINITION HREF="26_glo_u.htm#use_list"><I>use list</I></A> of <I>package</I> is modified. <P>
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<P><B>Affected By:</B><P>
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Current state of the package system. <P><B>Exceptional Situations:</B> None.
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<P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="f_use_pk.htm#use-package"><B>use-package</B></A>, <A REL=DEFINITION HREF="f_pkg_us.htm#package-use-list"><B>package-use-list</B></A> <P>
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<P><B>Notes:</B> None.
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<P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issue</A>, <I>not part of the specification</I>, applies to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss254.htm">PACKAGE-FUNCTION-CONSISTENCY:MORE-PERMISSIVE</A><P></UL><HR>
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