Constant ::= (#PCDATA|Replaceable|InlineGraphic|InlineMediaObject|IndexTerm)*
Name | Type | Default |
| Class | Enumeration: Limit | None |
Both the start- and end-tags are required for this element.
A Constant identifies a value as immutable. It is most often used to identify system limitations or other defined constants.
These elements contain Constant: Action, Application, Attribution, BiblioMisc, BridgeHead, Citation, CiteTitle, Command, Comment, ComputerOutput, Database, Emphasis, entry, Filename, ForeignPhrase, FuncParams, FuncSynopsisInfo, Function, GlossSee, GlossSeeAlso, GlossTerm, Hardware, Interface, InterfaceDefinition, KeyCap, LineAnnotation, Link, Literal, LiteralLayout, LoTentry, Member, MsgAud, OLink, Option, Optional, Para, Parameter, Phrase, Primary, PrimaryIE, ProductName, ProgramListing, Property, Quote, RefDescriptor, RefEntryTitle, RefName, RefPurpose, Screen, ScreenInfo, Secondary, SecondaryIE, See, SeeAlso, SeeAlsoIE, SeeIE, Seg, SegTitle, SimPara, Subtitle, Synopsis, SystemItem, Term, Tertiary, TertiaryIE, Title, TitleAbbrev, ToCback, ToCentry, ToCfront, Trademark, ULink, UserInput.
The following elements occur in Constant: IndexTerm, InlineGraphic, InlineMediaObject, Replaceable.
In some contexts, the following elements are allowed anywhere: BeginPage, IndexTerm.
In some contexts, the following elements are excluded: IndexTerm.
Class identifies constants that are system or application limits (for example, the maximum length of a filename).
Command, ComputerOutput, Literal, Markup, Option, Optional, Parameter, Prompt, Replaceable, SGMLTag, UserInput, VarName
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook V3.1//EN"> <para> In ACL, <constant>main::PCS</constant> contains the path component separator character. </para>
In ACL, main::PCS contains the path component separator character.
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook V3.1//EN"> <para> The maximum legal length for a path name is <constant class=limit>PATH_MAX</constant>, defined in <filename class=headerfile>limits.h</filename>. </para>
The maximum legal length for a path name is PATH_MAX, defined in limits.h.
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