funcparams

funcparams — Parameters for a function referenced through a function pointer in a synopsis.

Synopsis

funcparams ::=

Attributes

Common attributes and common linking attributes.

No additional attributes.

Description

In some programming languages (such as C), it is possible for a function to have a pointer to another function as one of its parameters. In the syntax summary for such a function, the funcparams element provides a wrapper for the function pointer.

For example, the following prototype describes the function sort, which takes two parameters. The first parameter, arr, is an array of integers. The second parameter is a pointer to a function, comp, that returns an int. The comp function takes two parameters, both of type int *:

  |<funcprototype>
  |  <funcdef>void <function>sort</function></funcdef>
  |    <paramdef>int *<parameter>arr</parameter>[]</paramdef>
  |    <paramdef>int <parameter>(* comp)</parameter>
  |      <funcparams>int *, int *</funcparams></paramdef>
  |</funcprototype>

Processing expectations

Formatted inline. For a complete description of the processing expectations, see funcsynopsis.

Attributes

Common attributes and common linking attributes.

any attribute

Any attribute in any other explicit namespace

Parents

These elements contain funcparams: methodparam, paramdef.

Children

The following elements occur in funcparams: text, abbrev, acronym, alt, anchor, annotation, biblioref, coref, date, emphasis (db._emphasis), firstterm (db._firstterm), footnote, footnoteref, foreignphrase (db._foreignphrase), glossterm (db._glossterm), indexterm (db.indexterm.endofrange), indexterm (db.indexterm.singular), indexterm (db.indexterm.startofrange), inlinemediaobject, link, olink, phrase (db._phrase), quote (db._quote), remark, replaceable, subscript, superscript, trademark, wordasword, xref.

See Also

Related elements: funcdef, funcprototype, funcsynopsisinfo, function, paramdef, parameter, returnvalue, varargs, void.

Examples

 1 |<article xmlns='http://docbook.org/ns/docbook'>
   |<title>Example funcparams</title>
   | 
   |<funcsynopsis>
 5 |<funcprototype>
   |  <funcdef>void <function>qsort</function></funcdef>
   |    <paramdef>void *<parameter>dataptr</parameter>[]</paramdef>
   |    <paramdef>int <parameter>left</parameter></paramdef>
   |    <paramdef>int <parameter>right</parameter></paramdef>
10 |    <paramdef>int (*<parameter>comp</parameter>)
   |      <funcparams>void *, void *</funcparams></paramdef>
   |</funcprototype>
   |</funcsynopsis>
   | 
15 |</article>
void qsort(dataptr,
left,
right,
comp);
void *dataptr[]
int left
int right
int (*comp) (void *, void *)