<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>User-defined Data Types (GNU Octave (version 5.1.0))</title> <meta name="description" content="User-defined Data Types (GNU Octave (version 5.1.0))"> <meta name="keywords" content="User-defined Data Types (GNU Octave (version 5.1.0))"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <link href="index.html#Top" rel="start" title="Top"> <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Data-Types.html#Data-Types" rel="up" title="Data Types"> <link href="Object-Sizes.html#Object-Sizes" rel="next" title="Object Sizes"> <link href="Cell-Array-Objects.html#Cell-Array-Objects" rel="prev" title="Cell Array Objects"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} pre.smalldisplay {font-family: inherit; font-size: smaller} pre.smallexample {font-size: smaller} pre.smallformat {font-family: inherit; font-size: smaller} pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> <link rel="stylesheet" type="text/css" href="octave.css"> </head> <body lang="en"> <a name="User_002ddefined-Data-Types"></a> <div class="header"> <p> Next: <a href="Object-Sizes.html#Object-Sizes" accesskey="n" rel="next">Object Sizes</a>, Previous: <a href="Built_002din-Data-Types.html#Built_002din-Data-Types" accesskey="p" rel="prev">Built-in Data Types</a>, Up: <a href="Data-Types.html#Data-Types" accesskey="u" rel="up">Data Types</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="User_002ddefined-Data-Types-1"></a> <h3 class="section">3.2 User-defined Data Types</h3> <a name="index-user_002ddefined-data-types"></a> <a name="index-data-types_002c-user_002ddefined"></a> <p>Someday I hope to expand this to include a complete description of Octave’s mechanism for managing user-defined data types. Until this feature is documented here, you will have to make do by reading the code in the <samp>ov.h</samp>, <samp>ops.h</samp>, and related files from Octave’s <samp>src</samp> directory. </p> </body> </html>