type — The classification of a value
type ::=
altanchorannotationbibliorefindexterm (db.indexterm.endofrange)indexterm (db.indexterm.singular)indexterm (db.indexterm.startofrange)inlinemediaobjectlinkolinkphrase (db._phrase)remarkreplaceablesubscriptsuperscriptxrefIn general usage, Type identifies one member of a
class of values. 
In documenting computer programs, it identifies specifically a
“type,” as might be declared with typedef
in the C programming language.
These elements contain type: bridgehead, citation, citetitle, classsynopsisinfo, emphasis (db.emphasis), entry, fieldsynopsis, firstterm, funcdef, funcsynopsisinfo, glosssee, glossseealso, glossterm, html:button, html:label, html:legend, link, literallayout, member, methodparam, methodsynopsis, olink, orgdiv, para, paramdef, phrase (db.phrase), primary, primaryie, programlisting, quote, refdescriptor, refentrytitle, refname, refpurpose, screen, secondary, secondaryie, see, seealso, seealsoie, seeie, seg, segtitle, simpara, subtitle, synopsis, td, term, termdef, tertiary, tertiaryie, th, title, titleabbrev, tocentry.
The following elements occur in type: text, alt, anchor, annotation, biblioref, indexterm (db.indexterm.endofrange), indexterm (db.indexterm.singular), indexterm (db.indexterm.startofrange), inlinemediaobject, link, olink, phrase (db._phrase), remark, replaceable, subscript, superscript, xref.
<article xmlns='http://docbook.org/ns/docbook'> <title>Example type</title> <para>The <function>geteuid</function> function returns a <type>uid_t</type> that contains the user's <emphasis>effective</emphasis> user id. </para> </article>
The geteuid function returns a uid_t that
contains the user's effective user id.