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docSidebarContainer_YfHR"><div class="sidebarViewport_aRkj"><div class="sidebar_njMd"><nav aria-label="Docs sidebar" class="menu thin-scrollbar menu_SIkG"><ul class="theme-doc-sidebar-menu menu__list"><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-1 menu__list-item"><a class="menu__link" href="../index.html">Introduction</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-0/intro.html">Contents and Figures</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-1/b-b-scope-purpose-and-history.html">1. Introduction</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-2/c-b-character-syntax.html">2. Syntax</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-3/d-b-evaluation.html">3. Evaluation and Compilation</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-4/e-b-introduction.html">4. Types and Classes</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-5/f-b-generalized-reference.html">5. Data and Control Flow</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-6/g-b-the-loop-facility.html">6. Iteration</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-7/h-b-object-creation-and-initialization.html">7. Objects</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../category/81-structures-dictionary.html">8. Structures</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-9/j-b-condition-system-concepts.html">9. Conditions</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-10/ba-b-symbol-concepts.html">10. Symbols</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-11/bb-b-package-concepts.html">11. Packages</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-12/bc-b-number-concepts.html">12. Numbers</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-13/bd-b-character-concepts.html">13. Characters</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-14/be-b-cons-concepts.html">14. Conses</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-15/bf-b-array-concepts.html">15. Arrays</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-16/bg-b-string-concepts.html">16. Strings</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-17/bh-b-sequence-concepts.html">17. Sequences</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-18/bi-b-hash-table-concepts.html">18. Hash Tables</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-19/bj-b-overview-of-filenames.html">19. Filenames</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-20/ca-b-file-system-concepts.html">20. Files</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-21/cb-b-stream-concepts.html">21. Streams</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-22/cc-b-the-lisp-printer.html">22. Printer</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-23/cd-b-reader-concepts.html">23. Reader</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-24/ce-b-system-construction-concepts.html">24. System Construction</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../chap-25/cf-b-the-external-environment.html">25. External Environment</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../environments.html">26. Environments</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../meta-object-protocol.html">27. Meta Object Protocol</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../data-structures.html">28. Data Structures</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="../portability/trivial-packages.html">29. Portability</a></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-1 menu__list-item"><a class="menu__link" href="../dictionary-entries.html">dictionary-entries</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret menu__link--active" aria-expanded="true" href="intro.html">Glossary</a></div><ul style="display:block;overflow:visible;height:auto" class="menu__list"><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="intro.html">Glossary - Introduction</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link menu__link--active" aria-current="page" tabindex="0" href="a.html">A</a></li><li class="theme-doc-sidebar-item-link 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0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Glossary</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">A</span><meta itemprop="position" content="2"></li></ul></nav><div class="theme-doc-markdown markdown"><header><h1>A</h1></header><p><strong>A</strong></p>
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<p><strong>absolute</strong> <em>adj.</em> 1. (of a <span><i>time</i></span>) representing a specific point in time. 2. (of a <span><i>pathname</i></span>) representing a specific position in a directory hierarchy. See <span><i>relative</i></span>.</p>
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<p><strong>access</strong> <em>n.</em>, <em>v.t.</em> 1. <em>v.t.</em> (a <span><i>place</i></span>, or <span><i>array</i></span>) to <span><i>read</i></span> <sub>1</sub> or <span><i>write</i></span><sub>1</sub> the <span><i>value</i></span> of the <span><i>place</i></span> or an <span><i>element</i></span> of the <span><i>array</i></span>. 2. <em>n.</em> (of a <span><i>place</i></span>) an attempt to <span><i>access</i></span><sub>1</sub> the <span><i>value</i></span> of the <span><i>place</i></span>.</p>
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<p><strong>accessibility</strong> <em>n.</em> the state of being <span><i>accessible</i></span>.</p>
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<p><strong>accessible</strong> <em>adj.</em> 1. (of an <span><i>object</i></span>) capable of being <em>referenced</em>. 2. (of <span><i>shared slots</i></span> or <span><i>local slots</i></span> in an <span><i>instance</i></span> of a <span><i>class</i></span>) having been defined by the <span><i>class</i></span> of the <span><i>instance</i></span> or <em>inherited</em> from a <span><i>superclass</i></span> of that <span><i>class</i></span>. 3. (of a <span><i>symbol</i></span> in a <span><i>package</i></span>) capable of being <em>referenced</em> without a <span><i>package prefix</i></span> when that <span><i>package</i></span> is current, regardless of whether the <span><i>symbol</i></span> is <span><i>present</i></span> in that <span><i>package</i></span> or is <em>inherited</em>.</p>
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<p><strong>accessor</strong> <em>n.</em> an <span><i>operator</i></span> that performs an <span><i>access</i></span>. See <span><i>reader</i></span> and <span><i>writer</i></span> .</p>
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<p><strong>active</strong> <em>adj.</em> 1. (of a <span><i>handler</i></span> , a <span><i>restart</i></span>, or a <span><i>catch tag</i></span>) having been <em>established</em> but not yet <em>disestablished</em>. 2. (of an <span><i>element</i></span> of an <span><i>array</i></span>) having an index that is greater than or equal to zero, but less than the <span><i>fill pointer</i></span> (if any). For an <span><i>array</i></span> that has no <span><i>fill pointer</i></span> , all <span><i>elements</i></span> are considered <span><i>active</i></span>.</p>
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<p><strong>actual adjustability</strong> <em>n.</em> (of an <span><i>array</i></span>) a <span><i>generalized boolean</i></span> that is associated with the <span><i>array</i></span>, representing whether the <span><i>array</i></span> is <span><i>actually adjustable</i></span>. See also <span><i>expressed adjustability</i></span> and <strong>adjustable-array-p</strong>.</p>
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<p><strong>actual argument</strong> <em>n. Trad.</em> an <span><i>argument</i></span>.</p>
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<p><strong>actual array element type</strong> <em>n.</em> (of an <span><i>array</i></span>) the <span><i>type</i></span> for which the <span><i>array</i></span> is actually specialized, which is the <span><i>upgraded array element type</i></span> of the <span><i>expressed array element type</i></span> of the <span><i>array</i></span>. See the <span><i>function</i></span> <span><b>array-element-type</b></span>.</p>
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<p><strong>actual complex part type</strong> <em>n.</em> (of a <span><i>complex</i></span> ) the <span><i>type</i></span> in which the real and imaginary parts of the <span><i>complex</i></span> are actually represented, which is the <span><i>upgraded complex part type</i></span> of the <span><i>expressed complex part type</i></span> of the <span><i>complex</i></span> .</p>
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<p><strong>actual parameter</strong> <em>n. Trad.</em> an <span><i>argument</i></span>.</p>
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<p><strong>actually adjustable</strong> <em>adj.</em> (of an <span><i>array</i></span>) such that <span><b>adjust-array</b></span> can adjust its</p>
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<p>characteristics by direct modification. A <span><i>conforming program</i></span> may depend on an <span><i>array</i></span> being <span><i>actually adjustable</i></span> only if either that <span><i>array</i></span> is known to have been <span><i>expressly adjustable</i></span> or if that <span><i>array</i></span> has been explicitly tested by <strong>adjustable-array-p</strong>.</p>
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<p><strong>adjustability</strong> <em>n.</em> (of an <span><i>array</i></span>) 1. <span><i>expressed adjustability</i></span>. 2. <span><i>actual adjustability</i></span>.</p>
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<p><strong>adjustable</strong> <em>adj.</em> (of an <span><i>array</i></span>) 1. <span><i>expressly adjustable</i></span>. 2. <span><i>actually adjustable</i></span>.</p>
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<p><strong>after method</strong> <em>n.</em> a <span><i>method</i></span> having the <span><i>qualifier</i></span> <!-- -->:after<!-- -->.</p>
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<p><strong>alist</strong> [ <strong>—a list</strong> ], <em>n.</em> an <span><i>association list</i></span>.</p>
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<p><b>alphabetic</b> <i>n.</i>, <i>adj.</i> 1. <i>adj.</i> (of a <i>character</i> ) being one of the <i>standard characters</i> A through Z or a through z, or being any <i>implementation-defined</i> character that has <i>case</i>, or being some other <i>graphic character</i> defined by the <i>implementation</i> to be <i>alphabetic</i><sub>1</sub>. 2. a. <i>n.</i> one of several possible <i>constituent traits</i> of a <i>character</i> . For details, see Section 2.1.4.1 (Constituent Characters) and Section 2.2 (Reader Algorithm). b. <i>adj.</i> (of a <i>character</i> ) being a <i>character</i> that has <i>syntax type constituent</i> in the <i>current readtable</i> and that has the <i>constituent trait alphabetic</i><sub>2<i>a</i></sub>. See Figure 2–8.</p>
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<p><strong>alphanumeric</strong> <em>adj.</em> (of a <span><i>character</i></span> ) being either an <span><i>alphabetic</i></span><sub>1</sub> <span><i>character</i></span> or a <span><i>numeric</i></span> character.</p>
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<p><strong>ampersand</strong> <em>n.</em> the <span><i>standard character</i></span> that is called “ampersand” (&). See Figure 2–5.</p>
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<p><strong>anonymous</strong> <em>adj.</em> 1. (of a <span><i>class</i></span> or <span><i>function</i></span>) having no <span><i>name</i></span> 2. (of a <span><i>restart</i></span>) having a <span><i>name</i></span> of <span><b>nil</b></span>.</p>
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<p><strong>apparently uninterned</strong> <em>adj.</em> having a <span><i>home package</i></span> of <span><b>nil</b></span>. (An <em>apparently</em></p>
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<p><em>uninterned symbol</em> might or might not be an <em>uninterned symbol</em>. <em>Uninterned symbols</em> have a <span><i>home package</i></span> of <span><b>nil</b></span>, but <span><i>symbols</i></span> which have been <span><i>uninterned</i></span> from their <span><i>home package</i></span> also have a <span><i>home package</i></span> of <span><b>nil</b></span>, even though they might still be <span><i>interned</i></span> in some other <span><i>package</i></span>.)</p>
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<p><strong>applicable</strong> <em>adj.</em> 1. (of a <span><i>handler</i></span> ) being an <span><i>applicable handler</i></span> . 2. (of a <span><i>method</i></span>) being an <span><i>applicable method</i></span>. 3. (of a <span><i>restart</i></span>) being an <span><i>applicable restart</i></span>.</p>
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<p><strong>applicable handler</strong> <em>n.</em> (for a <span><i>condition</i></span> being <em>signaled</em>) an <em>active handler</em> for which the associated type contains the <span><i>condition</i></span>.</p>
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<p><strong>applicable method</strong> <em>n.</em> (of a <span><i>generic function</i></span> called with <span><i>arguments</i></span>) a <span><i>method</i></span> of the <span><i>generic function</i></span> for which the <span><i>arguments</i></span> satisfy the <span><i>parameter specializers</i></span> of that <span><i>method</i></span>. See Section 7.6.6.1.1 (Selecting the Applicable Methods).</p>
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<p><strong>applicable restart</strong> <em>n.</em> 1. (for a <span><i>condition</i></span>) an <em>active handler</em> for which the associated test returns <span><i>true</i></span> when given the <span><i>condition</i></span> as an argument. 2. (for no particular <span><i>condition</i></span>) an <em>active handler</em> for which the associated test returns <span><i>true</i></span> when given <span><b>nil</b></span> as an argument.</p>
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<p><span><b>apply</b></span> <em>v.t.</em> (a <span><i>function</i></span> to a <span><i>list</i></span>) to <span><i>call</i></span> the <span><i>function</i></span> with arguments that are the <span><i>elements</i></span> of the <span><i>list</i></span>. “Applying the function <span><b>+</b></span> to a list of integers returns the sum of the elements of that list.”</p>
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<p><strong>argument</strong> <em>n.</em> 1. (of a <span><i>function</i></span>) an <span><i>object</i></span> which is offered as data to the <span><i>function</i></span> when it is <em>called</em>. 2. (of a <span><i>format control</i></span>) a <span><i>format argument</i></span>.</p>
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<p><strong>argument evaluation order</strong> <em>n.</em> the order in which <span><i>arguments</i></span> are evaluated in a function call. “The argument evaluation order for Common Lisp is left to right.” See Section 3.1 (Evaluation).</p>
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<p><strong>argument precedence order</strong> <em>n.</em> the order in which the <span><i>arguments</i></span> to a <span><i>generic function</i></span> are considered when sorting the <span><i>applicable methods</i></span> into precedence order.</p>
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<p><strong>around method</strong> <em>n.</em> a <span><i>method</i></span> having the <span><i>qualifier</i></span> <!-- -->:around<!-- -->.</p>
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<p><span><b>array</b></span> <em>n.</em> an <span><i>object</i></span> of <span><i>type</i></span> <span><b>array</b></span>, which serves as a container for other <span><i>objects</i></span> arranged in a Cartesian coordinate system.</p>
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<p><strong>array element type</strong> <em>n.</em> (of an <span><i>array</i></span>) 1. a <span><i>type</i></span> associated with the <span><i>array</i></span>, and of which all <span><i>elements</i></span> of the <span><i>array</i></span> are constrained to be members. 2. the <span><i>actual array element type</i></span> of the <span><i>array</i></span>. 3. the <span><i>expressed array element type</i></span> of the <span><i>array</i></span>.</p>
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<p><strong>array total size</strong> <em>n.</em> the total number of <span><i>elements</i></span> in an <span><i>array</i></span>, computed by taking the product of the <span><i>dimensions</i></span> of the <span><i>array</i></span>. (The size of a zero-dimensional <span><i>array</i></span> is therefore one.)</p>
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<p><strong>assign</strong> <em>v.t.</em> (a <span><i>variable</i></span>) to change the <span><i>value</i></span> of the <span><i>variable</i></span> in a <span><i>binding</i></span> that has already been <em>established</em>. See the <span><i>special operator</i></span> <span><b>setq</b></span>.</p>
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<p><strong>association list</strong> <em>n.</em> a <span><i>list</i></span> of <em>conses</em> representing an association of <span><i>keys</i></span> with <span><i>values</i></span>, where the <span><i>car</i></span> of each <span><i>cons</i></span> is the <span><i>key</i></span> and the <span><i>cdr</i></span> is the <span><i>value</i></span> associated with that <span><i>key</i></span>.</p>
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<p><strong>asterisk</strong> <em>n.</em> the <span><i>standard character</i></span> that is variously called “asterisk” or “star” (*). See Figure 2–5.</p>
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<p><strong>at-sign</strong> <em>n.</em> the <span><i>standard character</i></span> that is variously called “commercial at” or “at sign” (@). See Figure 2–5.</p>
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<p><span><b>atom</b></span> <em>n.</em> any <span><i>object</i></span> that is not a <span><i>cons</i></span>. “A vector is an atom.”</p>
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<p><strong>atomic</strong> <em>adj.</em> being an <span><i>atom</i></span>. “The number 3, the symbol foo, and <span><b>nil</b></span> are atomic.”</p>
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<p><strong>atomic type specifier</strong> <em>n.</em> a <span><i>type specifier</i></span> that is <span><i>atomic</i></span>. For every <span><i>atomic type specifier</i></span> , <em>x</em>, there is an equivalent <span><i>compound type specifier</i></span> with no arguments supplied, (<em>x</em>).</p>
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<p><strong>attribute</strong> <em>n.</em> (of a <span><i>character</i></span> ) a program-visible aspect of the <span><i>character</i></span> . The only <em>standardized attribute</em> of a <span><i>character</i></span> is its <span><i>code</i></span><sub>2</sub>, but <span><i>implementations</i></span> are permitted to have additional <em>implementation-defined attributes</em>. See Section 13.1.3 (Character Attributes). “An implementation that support fonts might make font information an attribute of a character, while others might represent font information separately from characters.”</p>
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<p><strong>aux variable</strong> <em>n.</em> a <span><i>variable</i></span> that occurs in the part of a <span><i>lambda list</i></span> that was introduced by <strong>&aux</strong>. Unlike all other <span><i>variables</i></span> introduced by a <em>lambda-list</em>, <span><i>aux variables</i></span> are not <span><i>parameters</i></span>.</p>
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<p><strong>auxiliary method</strong> <em>n.</em> a member of one of two sets of <span><i>methods</i></span> (the set of <span><i>primary methods</i></span> is the other) that form an exhaustive partition of the set of <span><i>methods</i></span> on the <span><i>method</i></span>’s <span><i>generic function</i></span>. How these sets are determined is dependent on the <span><i>method combination</i></span> type; see Section 7.6.2 (Introduction to Methods).</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/lisp-docs/cl-language-reference/tree/main/docs/chap-26/a.md" target="_blank" rel="noopener noreferrer" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">Last updated<!-- --> by <b>daninus14</b></span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" 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