Name
constant — A programming or system constant
Synopsis
constant ::=
(text | phrase db._phrase | replaceable
| Graphic inlines | Indexing inlines | Linking inlines | Ubiquitous inlines)*
Attribute synopsis
Common attributes and common linking attributes.
Additional attributes:
class(enumeration) = “limit”
Description
A constant identifies a value as immutable. It
is most often used to identify system limitations or other defined
constants.
Attributes
Common attributes and common linking attributes.
- class
Identifies the class of constant
Enumerated values: “limit” The value is a limit of some kind.
See Also
command, computeroutput, literal, markup, option, optional, parameter, prompt, replaceable, tag, userinput, varname
Examples
<article xmlns='http://docbook.org/ns/docbook'> <title>Example constant</title> <para>In ACL, <constant>main::PCS</constant> contains the path component separator character. </para> </article>
<article xmlns='http://docbook.org/ns/docbook'> <title>Example constant</title> <para>The maximum legal length for a pathname is <constant class='limit'>PATH_MAX</constant>, defined in <filename class='headerfile'>limits.h</filename>. </para> </article>
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