44 lines
12 KiB
HTML
44 lines
12 KiB
HTML
<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
|
|
<HTML>
|
|
<HEAD>
|
|
<TITLE>CLHS: Glossary-Section U</TITLE>
|
|
<LINK HREF="../Data/clhs.css" REL="stylesheet" TYPE="text/css" />
|
|
<META HTTP-EQUIV="Author" CONTENT="Kent M. Pitman">
|
|
<META HTTP-EQUIV="Organization" CONTENT="LispWorks Ltd.">
|
|
<LINK REL=TOP HREF="../Front/index.htm">
|
|
<LINK REL=COPYRIGHT HREF="../Front/Help.htm#Legal">
|
|
<LINK REL=DISCLAIMER HREF="../Front/Help.htm#Disclaimer">
|
|
<LINK REL=PREV HREF="26_glo_t.htm">
|
|
<LINK REL=UP HREF="26_a.htm">
|
|
<LINK REL=NEXT HREF="26_glo_v.htm">
|
|
</HEAD>
|
|
<BODY>
|
|
<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="26_glo_t.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="26_a.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="26_glo_v.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
|
|
|
|
<HR>
|
|
|
|
<B>U</B> <P>
|
|
<P><A NAME="unbound"><B>unbound</B></A> <I>adj.</I> not having an associated denotation in a <A REL=DEFINITION HREF="26_glo_b.htm#binding"><I>binding</I></A>. See <A REL=DEFINITION HREF="26_glo_b.htm#bound"><I>bound</I></A>. <P>
|
|
<P><A NAME="unbound_variable"><B>unbound variable</B></A> <I>n.</I> a <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> that is syntactically plausible as the name of a <A REL=DEFINITION HREF="26_glo_v.htm#variable"><I>variable</I></A> but which is not <A REL=DEFINITION HREF="26_glo_b.htm#bound"><I>bound</I></A> in the <A REL=DEFINITION HREF="26_glo_v.htm#variable"><I>variable</I></A> <A REL=DEFINITION HREF="26_glo_n.htm#namespace"><I>namespace</I></A>. <P>
|
|
<P><A NAME="undefined_function"><B>undefined function</B></A> <I>n.</I> a <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> that is syntactically plausible as the name of a <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> but which is not <A REL=DEFINITION HREF="26_glo_b.htm#bound"><I>bound</I></A> in the <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> <A REL=DEFINITION HREF="26_glo_n.htm#namespace"><I>namespace</I></A>. <P>
|
|
<P><A NAME="unintern"><B>unintern</B></A> <I>v.t.</I> (a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> in a <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A>) to make the <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> not be <A REL=DEFINITION HREF="26_glo_p.htm#present"><I>present</I></A> in that <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A>. (The <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> might continue to be <A REL=DEFINITION HREF="26_glo_a.htm#accessible"><I>accessible</I></A> by inheritance.) <P>
|
|
<P><A NAME="uninterned"><B>uninterned</B></A> <I>adj.</I> (of a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A>) not <A REL=DEFINITION HREF="26_glo_a.htm#accessible"><I>accessible</I></A> in any <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A>; i.e., not <A REL=DEFINITION HREF="26_glo_i.htm#interned"><I>interned</I></A>[1]. <P>
|
|
<P><A NAME="universal_time"><B>universal time</B></A> <I>n.</I> <A REL=DEFINITION HREF="26_glo_t.htm#time"><I>time</I></A>, represented as a non-negative <A REL=DEFINITION HREF="26_glo_i.htm#integer"><I>integer</I></A> number of seconds. <A REL=DEFINITION HREF="26_glo_a.htm#absolute"><I>Absolute</I></A> <A REL=DEFINITION HREF="#universal_time"><I>universal time</I></A> is measured as an offset from the beginning of the year 1900 (ignoring <A REL=DEFINITION HREF="26_glo_l.htm#leap_seconds"><I>leap seconds</I></A>). See <A REL=CHILD HREF="25_adb.htm">Section 25.1.4.2 (Universal Time)</A>. <P>
|
|
<P><A NAME="unqualified_method"><B>unqualified method</B></A> <I>n.</I> a <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> with no <A REL=DEFINITION HREF="26_glo_q.htm#qualifier"><I>qualifiers</I></A>. <P>
|
|
<P><A NAME="unregistered_package"><B>unregistered package</B></A> <I>n.</I> a <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> that is not present in the <A REL=DEFINITION HREF="26_glo_p.htm#package_registry"><I>package registry</I></A>. An <A REL=DEFINITION HREF="#unregistered_package"><I>unregistered package</I></A> has no <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A>; i.e., its <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> is <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>. See the <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> <A REL=DEFINITION HREF="f_del_pk.htm#delete-package"><B>delete-package</B></A>. <P>
|
|
<P><A NAME="unsafe"><B>unsafe</B></A> <I>adj.</I> (of <A REL=DEFINITION HREF="26_glo_c.htm#code"><I>code</I></A>) not <A REL=DEFINITION HREF="26_glo_s.htm#safe"><I>safe</I></A>. (Note that, unless explicitly specified otherwise, if a particular kind of error checking is guaranteed only in a <A REL=DEFINITION HREF="26_glo_s.htm#safe"><I>safe</I></A> context, the same checking might or might not occur in that context if it were <A REL=DEFINITION HREF="#unsafe"><I>unsafe</I></A>; describing a context as <A REL=DEFINITION HREF="#unsafe"><I>unsafe</I></A> means that certain kinds of error checking are not reliably enabled but does not guarantee that error checking is definitely disabled.) <P>
|
|
<P><A NAME="unsafe_call"><B>unsafe call</B></A> <I>n.</I> a <A REL=DEFINITION HREF="26_glo_c.htm#call"><I>call</I></A> that is not a <A REL=DEFINITION HREF="26_glo_s.htm#safe_call"><I>safe call</I></A>. For more detailed information, see <A REL=CHILD HREF="03_eaa.htm">Section 3.5.1.1 (Safe and Unsafe Calls)</A>. <P>
|
|
<P><A NAME="upgrade"><B>upgrade</B></A> <I>v.t.</I> (a declared <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> to an actual <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A>) 1. (when creating an <A REL=DEFINITION HREF="26_glo_a.htm#array"><I>array</I></A>) to substitute an <A REL=DEFINITION HREF="26_glo_a.htm#actual_array_element_type"><I>actual array element type</I></A> for an <A REL=DEFINITION HREF="26_glo_e.htm#expressed_array_element_type"><I>expressed array element type</I></A> when choosing an appropriately <A REL=DEFINITION HREF="26_glo_s.htm#specialized"><I>specialized</I></A> <A REL=DEFINITION HREF="26_glo_a.htm#array"><I>array</I></A> representation. See the <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> <A REL=DEFINITION HREF="f_upgr_1.htm#upgraded-array-element-type"><B>upgraded-array-element-type</B></A>. 2. (when creating a <A REL=DEFINITION HREF="26_glo_c.htm#complex"><I>complex</I></A>) to substitute an <A REL=DEFINITION HREF="26_glo_a.htm#actual_complex_part_type"><I>actual complex part type</I></A> for an <A REL=DEFINITION HREF="26_glo_e.htm#expressed_complex_part_type"><I>expressed complex part type</I></A> when choosing an appropriately <A REL=DEFINITION HREF="26_glo_s.htm#specialized"><I>specialized</I></A> <A REL=DEFINITION HREF="26_glo_c.htm#complex"><I>complex</I></A> representation. See the <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> <A REL=DEFINITION HREF="f_upgrad.htm#upgraded-complex-part-type"><B>upgraded-complex-part-type</B></A>. <P>
|
|
<P><A NAME="upgraded_array_element_type"><B>upgraded array element type</B></A> <I>n.</I> (of a <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A>) a <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> that is a <A REL=DEFINITION HREF="26_glo_s.htm#supertype"><I>supertype</I></A> of the <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> and that is used instead of the <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> whenever the <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> is used as an <A REL=DEFINITION HREF="26_glo_a.htm#array_element_type"><I>array element type</I></A> for object creation or type discrimination. See <A REL=CHILD HREF="15_aba.htm">Section 15.1.2.1 (Array Upgrading)</A>. <P>
|
|
<P><A NAME="upgraded_complex_part_type"><B>upgraded complex part type</B></A> <I>n.</I> (of a <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A>) a <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> that is a <A REL=DEFINITION HREF="26_glo_s.htm#supertype"><I>supertype</I></A> of the <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> and that is used instead of the <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> whenever the <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> is used as a <A REL=DEFINITION HREF="26_glo_c.htm#complex_part_type"><I>complex part type</I></A> for object creation or type discrimination. See the <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> <A REL=DEFINITION HREF="f_upgrad.htm#upgraded-complex-part-type"><B>upgraded-complex-part-type</B></A>. <P>
|
|
<P><A NAME="uppercase"><B>uppercase</B></A> <I>adj.</I> (of a <A REL=DEFINITION HREF="26_glo_c.htm#character"><I>character</I></A>) being among <A REL=DEFINITION HREF="26_glo_s.htm#standard_character"><I>standard characters</I></A> corresponding to the capital letters <TT>A</TT> through <TT>Z</TT>, or being some other <A REL=DEFINITION HREF="26_glo_i.htm#implementation-defined"><I>implementation-defined</I></A> <A REL=DEFINITION HREF="26_glo_c.htm#character"><I>character</I></A> that is defined by the <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A> to be <A REL=DEFINITION HREF="#uppercase"><I>uppercase</I></A>. See <A REL=CHILD HREF="13_adc.htm">Section 13.1.4.3 (Characters With Case)</A>. <P>
|
|
<P><A NAME="use"><B>use</B></A> <I>v.t.</I> (a <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A> P1) to <A REL=DEFINITION HREF="26_glo_i.htm#inherit"><I>inherit</I></A> the <A REL=DEFINITION HREF="26_glo_e.htm#external_symbol"><I>external symbols</I></A> of P1. (If a package P2 uses P1, the <A REL=DEFINITION HREF="26_glo_e.htm#external_symbol"><I>external symbols</I></A> of P1 become <A REL=DEFINITION HREF="26_glo_i.htm#internal_symbol"><I>internal symbols</I></A> of P2 unless they are explicitly <A REL=DEFINITION HREF="26_glo_e.htm#exported"><I>exported</I></A>.) ``The package <TT>CL-USER</TT> uses the package <TT>CL</TT>.'' <P>
|
|
<P><A NAME="use_list"><B>use list</B></A> <I>n.</I> (of a <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A>) a (possibly empty) <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> associated with each <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A> which determines what other <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>packages</I></A> are currently being <I>used</I> by that <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>package</I></A>. <P>
|
|
<P><A NAME="user"><B>user</B></A> <I>n.</I> an active entity, typically a human, that invokes or interacts with a <A REL=DEFINITION HREF="26_glo_p.htm#program"><I>program</I></A> at run time, but that is not necessarily a <A REL=DEFINITION HREF="26_glo_p.htm#programmer"><I>programmer</I></A>. <P>
|
|
<HR>
|
|
|
|
<A REL=NAVIGATOR HREF="../Front/StartPts.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Starting Points]" SRC="../Graphics/StartPts.gif" ALIGN=Bottom></A><A REL=TOC HREF="../Front/Contents.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Contents]" SRC="../Graphics/Contents.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Master.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Index]" SRC="../Graphics/Index.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Symbol.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Symbols]" SRC="../Graphics/Symbols.gif" ALIGN=Bottom></A><A REL=GLOSSARY HREF="../Body/26_a.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Glossary]" SRC="../Graphics/Glossary.gif" ALIGN=Bottom></A><A HREF="../Front/X3J13Iss.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Issues]" SRC="../Graphics/Issues.gif" ALIGN=Bottom></A><BR>
|
|
|
|
<A REL=COPYRIGHT HREF="../Front/Help.htm#Legal"><I>Copyright 1996-2005, LispWorks Ltd. All rights reserved.</I></A><P>
|
|
</BODY>
|
|
</HTML>
|