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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>N-ary Trees: GLib Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="GLib Reference Manual"> <link rel="up" href="glib-data-types.html" title="GLib Data Types"> <link rel="prev" href="glib-Balanced-Binary-Trees.html" title="Balanced Binary Trees"> <link rel="next" href="glib-Quarks.html" title="Quarks"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> <td width="100%" align="left" class="shortcuts"> <a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> <a href="#glib-N-ary-Trees.description" class="shortcut">Description</a></span> </td> <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> <td><a accesskey="u" href="glib-data-types.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="glib-Balanced-Binary-Trees.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="glib-Quarks.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="glib-N-ary-Trees"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="glib-N-ary-Trees.top_of_page"></a>N-ary Trees</span></h2> <p>N-ary Trees — trees of data with any number of branches</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="glib-N-ary-Trees.functions"></a><h2>Functions</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="functions_proto_type"> <col class="functions_proto_name"> </colgroup> <tbody> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-new" title="g_node_new ()">g_node_new</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-copy" title="g_node_copy ()">g_node_copy</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="returnvalue">gpointer</span></a> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="glib-N-ary-Trees.html#GCopyFunc" title="GCopyFunc ()">*GCopyFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-copy-deep" title="g_node_copy_deep ()">g_node_copy_deep</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-insert" title="g_node_insert ()">g_node_insert</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-insert-before" title="g_node_insert_before ()">g_node_insert_before</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-insert-after" title="g_node_insert_after ()">g_node_insert_after</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-append" title="g_node_append()">g_node_append</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-prepend" title="g_node_prepend ()">g_node_prepend</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-insert-data" title="g_node_insert_data()">g_node_insert_data</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-insert-data-after" title="g_node_insert_data_after()">g_node_insert_data_after</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-insert-data-before" title="g_node_insert_data_before()">g_node_insert_data_before</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-append-data" title="g_node_append_data()">g_node_append_data</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-prepend-data" title="g_node_prepend_data()">g_node_prepend_data</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-reverse-children" title="g_node_reverse_children ()">g_node_reverse_children</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()">g_node_traverse</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="glib-N-ary-Trees.html#GNodeTraverseFunc" title="GNodeTraverseFunc ()">*GNodeTraverseFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-children-foreach" title="g_node_children_foreach ()">g_node_children_foreach</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="glib-N-ary-Trees.html#GNodeForeachFunc" title="GNodeForeachFunc ()">*GNodeForeachFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-get-root" title="g_node_get_root ()">g_node_get_root</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-find" title="g_node_find ()">g_node_find</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-find-child" title="g_node_find_child ()">g_node_find_child</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-child-index" title="g_node_child_index ()">g_node_child_index</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-child-position" title="g_node_child_position ()">g_node_child_position</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-first-child" title="g_node_first_child()">g_node_first_child</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-last-child" title="g_node_last_child ()">g_node_last_child</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-nth-child" title="g_node_nth_child ()">g_node_nth_child</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-first-sibling" title="g_node_first_sibling ()">g_node_first_sibling</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-next-sibling" title="g_node_next_sibling()">g_node_next_sibling</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-prev-sibling" title="g_node_prev_sibling()">g_node_prev_sibling</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-last-sibling" title="g_node_last_sibling ()">g_node_last_sibling</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#G-NODE-IS-LEAF:CAPS" title="G_NODE_IS_LEAF()">G_NODE_IS_LEAF</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#G-NODE-IS-ROOT:CAPS" title="G_NODE_IS_ROOT()">G_NODE_IS_ROOT</a><span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-depth" title="g_node_depth ()">g_node_depth</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-n-nodes" title="g_node_n_nodes ()">g_node_n_nodes</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-n-children" title="g_node_n_children ()">g_node_n_children</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-is-ancestor" title="g_node_is_ancestor ()">g_node_is_ancestor</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-max-height" title="g_node_max_height ()">g_node_max_height</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-unlink" title="g_node_unlink ()">g_node_unlink</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="glib-N-ary-Trees.html#g-node-destroy" title="g_node_destroy ()">g_node_destroy</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="glib-N-ary-Trees.other"></a><h2>Types and Values</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="other_proto_type"> <col class="other_proto_name"> </colgroup> <tbody> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode">GNode</a></td> </tr> <tr> <td class="datatype_keyword">enum</td> <td class="function_name"><a class="link" href="glib-N-ary-Trees.html#GTraverseType" title="enum GTraverseType">GTraverseType</a></td> </tr> <tr> <td class="datatype_keyword">enum</td> <td class="function_name"><a class="link" href="glib-N-ary-Trees.html#GTraverseFlags" title="enum GTraverseFlags">GTraverseFlags</a></td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="glib-N-ary-Trees.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <gmodule.h> </pre> </div> <div class="refsect1"> <a name="glib-N-ary-Trees.description"></a><h2>Description</h2> <p>The <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> struct and its associated functions provide a N-ary tree data structure, where nodes in the tree can contain arbitrary data.</p> <p>To create a new tree use <a class="link" href="glib-N-ary-Trees.html#g-node-new" title="g_node_new ()"><code class="function">g_node_new()</code></a>.</p> <p>To insert a node into a tree use <a class="link" href="glib-N-ary-Trees.html#g-node-insert" title="g_node_insert ()"><code class="function">g_node_insert()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-insert-before" title="g_node_insert_before ()"><code class="function">g_node_insert_before()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-append" title="g_node_append()"><code class="function">g_node_append()</code></a> and <a class="link" href="glib-N-ary-Trees.html#g-node-prepend" title="g_node_prepend ()"><code class="function">g_node_prepend()</code></a>.</p> <p>To create a new node and insert it into a tree use <a class="link" href="glib-N-ary-Trees.html#g-node-insert-data" title="g_node_insert_data()"><code class="function">g_node_insert_data()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-insert-data-after" title="g_node_insert_data_after()"><code class="function">g_node_insert_data_after()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-insert-data-before" title="g_node_insert_data_before()"><code class="function">g_node_insert_data_before()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-append-data" title="g_node_append_data()"><code class="function">g_node_append_data()</code></a> and <a class="link" href="glib-N-ary-Trees.html#g-node-prepend-data" title="g_node_prepend_data()"><code class="function">g_node_prepend_data()</code></a>.</p> <p>To reverse the children of a node use <a class="link" href="glib-N-ary-Trees.html#g-node-reverse-children" title="g_node_reverse_children ()"><code class="function">g_node_reverse_children()</code></a>.</p> <p>To find a node use <a class="link" href="glib-N-ary-Trees.html#g-node-get-root" title="g_node_get_root ()"><code class="function">g_node_get_root()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-find" title="g_node_find ()"><code class="function">g_node_find()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-find-child" title="g_node_find_child ()"><code class="function">g_node_find_child()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-child-index" title="g_node_child_index ()"><code class="function">g_node_child_index()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-child-position" title="g_node_child_position ()"><code class="function">g_node_child_position()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-first-child" title="g_node_first_child()"><code class="function">g_node_first_child()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-last-child" title="g_node_last_child ()"><code class="function">g_node_last_child()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-nth-child" title="g_node_nth_child ()"><code class="function">g_node_nth_child()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-first-sibling" title="g_node_first_sibling ()"><code class="function">g_node_first_sibling()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-prev-sibling" title="g_node_prev_sibling()"><code class="function">g_node_prev_sibling()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-next-sibling" title="g_node_next_sibling()"><code class="function">g_node_next_sibling()</code></a> or <a class="link" href="glib-N-ary-Trees.html#g-node-last-sibling" title="g_node_last_sibling ()"><code class="function">g_node_last_sibling()</code></a>.</p> <p>To get information about a node or tree use <a class="link" href="glib-N-ary-Trees.html#G-NODE-IS-LEAF:CAPS" title="G_NODE_IS_LEAF()"><code class="function">G_NODE_IS_LEAF()</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-NODE-IS-ROOT:CAPS" title="G_NODE_IS_ROOT()"><code class="function">G_NODE_IS_ROOT()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-depth" title="g_node_depth ()"><code class="function">g_node_depth()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-n-nodes" title="g_node_n_nodes ()"><code class="function">g_node_n_nodes()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-n-children" title="g_node_n_children ()"><code class="function">g_node_n_children()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-is-ancestor" title="g_node_is_ancestor ()"><code class="function">g_node_is_ancestor()</code></a> or <a class="link" href="glib-N-ary-Trees.html#g-node-max-height" title="g_node_max_height ()"><code class="function">g_node_max_height()</code></a>.</p> <p>To traverse a tree, calling a function for each node visited in the traversal, use <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()"><code class="function">g_node_traverse()</code></a> or <a class="link" href="glib-N-ary-Trees.html#g-node-children-foreach" title="g_node_children_foreach ()"><code class="function">g_node_children_foreach()</code></a>.</p> <p>To remove a node or subtree from a tree use <a class="link" href="glib-N-ary-Trees.html#g-node-unlink" title="g_node_unlink ()"><code class="function">g_node_unlink()</code></a> or <a class="link" href="glib-N-ary-Trees.html#g-node-destroy" title="g_node_destroy ()"><code class="function">g_node_destroy()</code></a>.</p> </div> <div class="refsect1"> <a name="glib-N-ary-Trees.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="g-node-new"></a><h3>g_node_new ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_new (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Creates a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> containing the given data. Used to create the first node in a tree.</p> <div class="refsect3"> <a name="g-node-new.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data of the new node</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-new.returns"></a><h4>Returns</h4> <p> a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-copy"></a><h3>g_node_copy ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_copy (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Recursively copies a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> (but does not deep-copy the data inside the nodes, see <a class="link" href="glib-N-ary-Trees.html#g-node-copy-deep" title="g_node_copy_deep ()"><code class="function">g_node_copy_deep()</code></a> if you need that).</p> <div class="refsect3"> <a name="g-node-copy.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-copy.returns"></a><h4>Returns</h4> <p> a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> containing the same data pointers</p> </div> </div> <hr> <div class="refsect2"> <a name="GCopyFunc"></a><h3>GCopyFunc ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="returnvalue">gpointer</span></a> <span class="c_punctuation">(</span>*GCopyFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> src</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>A function of this signature is used to copy the node data when doing a deep-copy of a tree.</p> <div class="refsect3"> <a name="GCopyFunc.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>src</p></td> <td class="parameter_description"><p>A pointer to the data which should be copied. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL must not be passed as the value in, out, in-out; or as a return value."><span class="acronym">not nullable</span></acronym>]</span></td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>Additional data</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="GCopyFunc.returns"></a><h4>Returns</h4> <p>A pointer to the copy. </p> <p><span class="annotation">[<acronym title="NULL must not be passed as the value in, out, in-out; or as a return value."><span class="acronym">not nullable</span></acronym>]</span></p> </div> <p class="since">Since: <a class="link" href="api-index-2-4.html#api-index-2.4">2.4</a></p> </div> <hr> <div class="refsect2"> <a name="g-node-copy-deep"></a><h3>g_node_copy_deep ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_copy_deep (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GCopyFunc" title="GCopyFunc ()"><span class="type">GCopyFunc</span></a> copy_func</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Recursively copies a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> and its data.</p> <div class="refsect3"> <a name="g-node-copy-deep.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>copy_func</p></td> <td class="parameter_description"><p>the function which is called to copy the data inside each node, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> to use the original data.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>data to pass to <em class="parameter"><code>copy_func</code></em> </p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-copy-deep.returns"></a><h4>Returns</h4> <p> a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> containing copies of the data in <em class="parameter"><code>node</code></em> .</p> </div> <p class="since">Since: <a class="link" href="api-index-2-4.html#api-index-2.4">2.4</a></p> </div> <hr> <div class="refsect2"> <a name="g-node-insert"></a><h3>g_node_insert ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_insert (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *parent</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> position</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Inserts a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> beneath the parent at the given position.</p> <div class="refsect3"> <a name="g-node-insert.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place <em class="parameter"><code>node</code></em> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>position</p></td> <td class="parameter_description"><p>the position to place <em class="parameter"><code>node</code></em> at, with respect to its siblings If position is -1, <em class="parameter"><code>node</code></em> is inserted as the last child of <em class="parameter"><code>parent</code></em> </p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to insert</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-insert.returns"></a><h4>Returns</h4> <p> the inserted <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-insert-before"></a><h3>g_node_insert_before ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_insert_before (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *parent</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *sibling</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Inserts a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> beneath the parent before the given sibling.</p> <div class="refsect3"> <a name="g-node-insert-before.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place <em class="parameter"><code>node</code></em> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>sibling</p></td> <td class="parameter_description"><p>the sibling <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place <em class="parameter"><code>node</code></em> before. If sibling is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, the node is inserted as the last child of <em class="parameter"><code>parent</code></em> .</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to insert</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-insert-before.returns"></a><h4>Returns</h4> <p> the inserted <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-insert-after"></a><h3>g_node_insert_after ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_insert_after (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *parent</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *sibling</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Inserts a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> beneath the parent after the given sibling.</p> <div class="refsect3"> <a name="g-node-insert-after.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place <em class="parameter"><code>node</code></em> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>sibling</p></td> <td class="parameter_description"><p>the sibling <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place <em class="parameter"><code>node</code></em> after. If sibling is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, the node is inserted as the first child of <em class="parameter"><code>parent</code></em> .</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to insert</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-insert-after.returns"></a><h4>Returns</h4> <p> the inserted <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-append"></a><h3>g_node_append()</h3> <pre class="programlisting">#define g_node_append(parent, node)</pre> <p>Inserts a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> as the last child of the given parent.</p> <div class="refsect3"> <a name="g-node-append.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to insert</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-append.returns"></a><h4>Returns</h4> <p> the inserted <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-prepend"></a><h3>g_node_prepend ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_prepend (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *parent</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Inserts a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> as the first child of the given parent.</p> <div class="refsect3"> <a name="g-node-prepend.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to insert</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-prepend.returns"></a><h4>Returns</h4> <p> the inserted <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-insert-data"></a><h3>g_node_insert_data()</h3> <pre class="programlisting">#define g_node_insert_data(parent, position, data)</pre> <p>Inserts a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> at the given position.</p> <div class="refsect3"> <a name="g-node-insert-data.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>position</p></td> <td class="parameter_description"><p>the position to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> at. If position is -1, the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> is inserted as the last child of <em class="parameter"><code>parent</code></em> </p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data for the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-insert-data.returns"></a><h4>Returns</h4> <p> the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-insert-data-after"></a><h3>g_node_insert_data_after()</h3> <pre class="programlisting">#define g_node_insert_data_after(parent, sibling, data)</pre> <p>Inserts a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> after the given sibling.</p> <div class="refsect3"> <a name="g-node-insert-data-after.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>sibling</p></td> <td class="parameter_description"><p>the sibling <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> after</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data for the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-insert-data-after.returns"></a><h4>Returns</h4> <p> the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-insert-data-before"></a><h3>g_node_insert_data_before()</h3> <pre class="programlisting">#define g_node_insert_data_before(parent, sibling, data)</pre> <p>Inserts a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> before the given sibling.</p> <div class="refsect3"> <a name="g-node-insert-data-before.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>sibling</p></td> <td class="parameter_description"><p>the sibling <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> before</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data for the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-insert-data-before.returns"></a><h4>Returns</h4> <p> the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-append-data"></a><h3>g_node_append_data()</h3> <pre class="programlisting">#define g_node_append_data(parent, data)</pre> <p>Inserts a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> as the last child of the given parent.</p> <div class="refsect3"> <a name="g-node-append-data.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data for the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-append-data.returns"></a><h4>Returns</h4> <p> the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-prepend-data"></a><h3>g_node_prepend_data()</h3> <pre class="programlisting">#define g_node_prepend_data(parent, data)</pre> <p>Inserts a new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> as the first child of the given parent.</p> <div class="refsect3"> <a name="g-node-prepend-data.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>parent</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to place the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> under</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data for the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-prepend-data.returns"></a><h4>Returns</h4> <p> the new <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-reverse-children"></a><h3>g_node_reverse_children ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_node_reverse_children (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Reverses the order of the children of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. (It doesn't change the order of the grandchildren.)</p> <div class="refsect3"> <a name="g-node-reverse-children.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-node-traverse"></a><h3>g_node_traverse ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_node_traverse (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *root</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseType" title="enum GTraverseType"><span class="type">GTraverseType</span></a> order</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseFlags" title="enum GTraverseFlags"><span class="type">GTraverseFlags</span></a> flags</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> max_depth</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNodeTraverseFunc" title="GNodeTraverseFunc ()"><span class="type">GNodeTraverseFunc</span></a> func</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Traverses a tree starting at the given root <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. It calls the given function for each node visited. The traversal can be halted at any point by returning <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> from <em class="parameter"><code>func</code></em> . <em class="parameter"><code>func</code></em> must not do anything that would modify the structure of the tree.</p> <div class="refsect3"> <a name="g-node-traverse.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>root</p></td> <td class="parameter_description"><p>the root <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> of the tree to traverse</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>order</p></td> <td class="parameter_description"><p>the order in which nodes are visited - <a class="link" href="glib-N-ary-Trees.html#G-IN-ORDER:CAPS"><code class="literal">G_IN_ORDER</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-PRE-ORDER:CAPS"><code class="literal">G_PRE_ORDER</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-POST-ORDER:CAPS"><code class="literal">G_POST_ORDER</code></a>, or <a class="link" href="glib-N-ary-Trees.html#G-LEVEL-ORDER:CAPS"><code class="literal">G_LEVEL_ORDER</code></a>.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>flags</p></td> <td class="parameter_description"><p>which types of children are to be visited, one of <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-ALL:CAPS"><code class="literal">G_TRAVERSE_ALL</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAVES:CAPS"><code class="literal">G_TRAVERSE_LEAVES</code></a> and <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAVES:CAPS"><code class="literal">G_TRAVERSE_NON_LEAVES</code></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>max_depth</p></td> <td class="parameter_description"><p>the maximum depth of the traversal. Nodes below this depth will not be visited. If max_depth is -1 all nodes in the tree are visited. If depth is 1, only the root is visited. If depth is 2, the root and its children are visited. And so on.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>func</p></td> <td class="parameter_description"><p>the function to call for each visited <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>user data to pass to the function</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GNodeTraverseFunc"></a><h3>GNodeTraverseFunc ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> <span class="c_punctuation">(</span>*GNodeTraverseFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Specifies the type of function passed to <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()"><code class="function">g_node_traverse()</code></a>. The function is called with each of the nodes visited, together with the user data passed to <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()"><code class="function">g_node_traverse()</code></a>. If the function returns <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a>, then the traversal is stopped.</p> <div class="refsect3"> <a name="GNodeTraverseFunc.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>user data passed to <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()"><code class="function">g_node_traverse()</code></a>.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="GNodeTraverseFunc.returns"></a><h4>Returns</h4> <p> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> to stop the traversal.</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-children-foreach"></a><h3>g_node_children_foreach ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_node_children_foreach (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseFlags" title="enum GTraverseFlags"><span class="type">GTraverseFlags</span></a> flags</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNodeForeachFunc" title="GNodeForeachFunc ()"><span class="type">GNodeForeachFunc</span></a> func</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Calls a function for each of the children of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. Note that it doesn't descend beneath the child nodes. <em class="parameter"><code>func</code></em> must not do anything that would modify the structure of the tree.</p> <div class="refsect3"> <a name="g-node-children-foreach.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>flags</p></td> <td class="parameter_description"><p>which types of children are to be visited, one of <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-ALL:CAPS"><code class="literal">G_TRAVERSE_ALL</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAVES:CAPS"><code class="literal">G_TRAVERSE_LEAVES</code></a> and <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAVES:CAPS"><code class="literal">G_TRAVERSE_NON_LEAVES</code></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>func</p></td> <td class="parameter_description"><p>the function to call for each visited node</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>user data to pass to the function</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GNodeForeachFunc"></a><h3>GNodeForeachFunc ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> <span class="c_punctuation">(</span>*GNodeForeachFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Specifies the type of function passed to <a class="link" href="glib-N-ary-Trees.html#g-node-children-foreach" title="g_node_children_foreach ()"><code class="function">g_node_children_foreach()</code></a>. The function is called with each child node, together with the user data passed to <a class="link" href="glib-N-ary-Trees.html#g-node-children-foreach" title="g_node_children_foreach ()"><code class="function">g_node_children_foreach()</code></a>.</p> <div class="refsect3"> <a name="GNodeForeachFunc.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>user data passed to <a class="link" href="glib-N-ary-Trees.html#g-node-children-foreach" title="g_node_children_foreach ()"><code class="function">g_node_children_foreach()</code></a>.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-node-get-root"></a><h3>g_node_get_root ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_get_root (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Gets the root of a tree.</p> <div class="refsect3"> <a name="g-node-get-root.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-get-root.returns"></a><h4>Returns</h4> <p> the root of the tree</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-find"></a><h3>g_node_find ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_find (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *root</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseType" title="enum GTraverseType"><span class="type">GTraverseType</span></a> order</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseFlags" title="enum GTraverseFlags"><span class="type">GTraverseFlags</span></a> flags</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Finds a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> in a tree.</p> <div class="refsect3"> <a name="g-node-find.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>root</p></td> <td class="parameter_description"><p>the root <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> of the tree to search</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>order</p></td> <td class="parameter_description"><p>the order in which nodes are visited - <a class="link" href="glib-N-ary-Trees.html#G-IN-ORDER:CAPS"><code class="literal">G_IN_ORDER</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-PRE-ORDER:CAPS"><code class="literal">G_PRE_ORDER</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-POST-ORDER:CAPS"><code class="literal">G_POST_ORDER</code></a>, or <a class="link" href="glib-N-ary-Trees.html#G-LEVEL-ORDER:CAPS"><code class="literal">G_LEVEL_ORDER</code></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>flags</p></td> <td class="parameter_description"><p>which types of children are to be searched, one of <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-ALL:CAPS"><code class="literal">G_TRAVERSE_ALL</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAVES:CAPS"><code class="literal">G_TRAVERSE_LEAVES</code></a> and <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAVES:CAPS"><code class="literal">G_TRAVERSE_NON_LEAVES</code></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data to find</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-find.returns"></a><h4>Returns</h4> <p> the found <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if the data is not found</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-find-child"></a><h3>g_node_find_child ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_find_child (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseFlags" title="enum GTraverseFlags"><span class="type">GTraverseFlags</span></a> flags</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Finds the first child of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> with the given data.</p> <div class="refsect3"> <a name="g-node-find-child.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>flags</p></td> <td class="parameter_description"><p>which types of children are to be searched, one of <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-ALL:CAPS"><code class="literal">G_TRAVERSE_ALL</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAVES:CAPS"><code class="literal">G_TRAVERSE_LEAVES</code></a> and <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAVES:CAPS"><code class="literal">G_TRAVERSE_NON_LEAVES</code></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data to find</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-find-child.returns"></a><h4>Returns</h4> <p> the found child <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if the data is not found</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-child-index"></a><h3>g_node_child_index ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a> g_node_child_index (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> <p>Gets the position of the first child of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> which contains the given data.</p> <div class="refsect3"> <a name="g-node-child-index.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>the data to find</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-child-index.returns"></a><h4>Returns</h4> <p> the index of the child of <em class="parameter"><code>node</code></em> which contains <em class="parameter"><code>data</code></em> , or -1 if the data is not found</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-child-position"></a><h3>g_node_child_position ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a> g_node_child_position (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *child</code></em>);</pre> <p>Gets the position of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> with respect to its siblings. <em class="parameter"><code>child</code></em> must be a child of <em class="parameter"><code>node</code></em> . The first child is numbered 0, the second 1, and so on.</p> <div class="refsect3"> <a name="g-node-child-position.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>child</p></td> <td class="parameter_description"><p>a child of <em class="parameter"><code>node</code></em> </p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-child-position.returns"></a><h4>Returns</h4> <p> the position of <em class="parameter"><code>child</code></em> with respect to its siblings</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-first-child"></a><h3>g_node_first_child()</h3> <pre class="programlisting">#define g_node_first_child(node)</pre> <p>Gets the first child of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p> <div class="refsect3"> <a name="g-node-first-child.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-first-child.returns"></a><h4>Returns</h4> <p> the first child of <em class="parameter"><code>node</code></em> , or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if <em class="parameter"><code>node</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> or has no children</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-last-child"></a><h3>g_node_last_child ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_last_child (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Gets the last child of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p> <div class="refsect3"> <a name="g-node-last-child.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> (must not be <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>)</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-last-child.returns"></a><h4>Returns</h4> <p> the last child of <em class="parameter"><code>node</code></em> , or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if <em class="parameter"><code>node</code></em> has no children</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-nth-child"></a><h3>g_node_nth_child ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_nth_child (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> n</code></em>);</pre> <p>Gets a child of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>, using the given index. The first child is at index 0. If the index is too big, <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> is returned.</p> <div class="refsect3"> <a name="g-node-nth-child.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>n</p></td> <td class="parameter_description"><p>the index of the desired child</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-nth-child.returns"></a><h4>Returns</h4> <p> the child of <em class="parameter"><code>node</code></em> at index <em class="parameter"><code>n</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-first-sibling"></a><h3>g_node_first_sibling ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_first_sibling (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Gets the first sibling of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. This could possibly be the node itself.</p> <div class="refsect3"> <a name="g-node-first-sibling.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-first-sibling.returns"></a><h4>Returns</h4> <p> the first sibling of <em class="parameter"><code>node</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-next-sibling"></a><h3>g_node_next_sibling()</h3> <pre class="programlisting">#define g_node_next_sibling(node)</pre> <p>Gets the next sibling of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p> <div class="refsect3"> <a name="g-node-next-sibling.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-next-sibling.returns"></a><h4>Returns</h4> <p> the next sibling of <em class="parameter"><code>node</code></em> , or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if <em class="parameter"><code>node</code></em> is the last node or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-prev-sibling"></a><h3>g_node_prev_sibling()</h3> <pre class="programlisting">#define g_node_prev_sibling(node)</pre> <p>Gets the previous sibling of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p> <div class="refsect3"> <a name="g-node-prev-sibling.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-prev-sibling.returns"></a><h4>Returns</h4> <p> the previous sibling of <em class="parameter"><code>node</code></em> , or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if <em class="parameter"><code>node</code></em> is the first node or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-last-sibling"></a><h3>g_node_last_sibling ()</h3> <pre class="programlisting"><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="returnvalue">GNode</span></a> * g_node_last_sibling (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Gets the last sibling of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. This could possibly be the node itself.</p> <div class="refsect3"> <a name="g-node-last-sibling.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-last-sibling.returns"></a><h4>Returns</h4> <p> the last sibling of <em class="parameter"><code>node</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="G-NODE-IS-LEAF:CAPS"></a><h3>G_NODE_IS_LEAF()</h3> <pre class="programlisting">#define G_NODE_IS_LEAF(node) (((GNode*) (node))->children == NULL) </pre> <p>Returns <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> is a leaf node.</p> <div class="refsect3"> <a name="G-NODE-IS-LEAF.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="G-NODE-IS-LEAF.returns"></a><h4>Returns</h4> <p> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> is a leaf node (i.e. it has no children)</p> </div> </div> <hr> <div class="refsect2"> <a name="G-NODE-IS-ROOT:CAPS"></a><h3>G_NODE_IS_ROOT()</h3> <pre class="programlisting">#define G_NODE_IS_ROOT(node)</pre> <p>Returns <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> is the root of a tree.</p> <div class="refsect3"> <a name="G-NODE-IS-ROOT.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="G-NODE-IS-ROOT.returns"></a><h4>Returns</h4> <p> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> is the root of a tree (i.e. it has no parent or siblings)</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-depth"></a><h3>g_node_depth ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> g_node_depth (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Gets the depth of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p> <p>If <em class="parameter"><code>node</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> the depth is 0. The root node has a depth of 1. For the children of the root node the depth is 2. And so on.</p> <div class="refsect3"> <a name="g-node-depth.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-depth.returns"></a><h4>Returns</h4> <p> the depth of the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-n-nodes"></a><h3>g_node_n_nodes ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> g_node_n_nodes (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *root</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GTraverseFlags" title="enum GTraverseFlags"><span class="type">GTraverseFlags</span></a> flags</code></em>);</pre> <p>Gets the number of nodes in a tree.</p> <div class="refsect3"> <a name="g-node-n-nodes.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>root</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>flags</p></td> <td class="parameter_description"><p>which types of children are to be counted, one of <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-ALL:CAPS"><code class="literal">G_TRAVERSE_ALL</code></a>, <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAVES:CAPS"><code class="literal">G_TRAVERSE_LEAVES</code></a> and <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAVES:CAPS"><code class="literal">G_TRAVERSE_NON_LEAVES</code></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-n-nodes.returns"></a><h4>Returns</h4> <p> the number of nodes in the tree</p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-n-children"></a><h3>g_node_n_children ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> g_node_n_children (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Gets the number of children of a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>.</p> <div class="refsect3"> <a name="g-node-n-children.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-n-children.returns"></a><h4>Returns</h4> <p> the number of children of <em class="parameter"><code>node</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-is-ancestor"></a><h3>g_node_is_ancestor ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> g_node_is_ancestor (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>, <em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *descendant</code></em>);</pre> <p>Returns <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>node</code></em> is an ancestor of <em class="parameter"><code>descendant</code></em> . This is true if node is the parent of <em class="parameter"><code>descendant</code></em> , or if node is the grandparent of <em class="parameter"><code>descendant</code></em> etc.</p> <div class="refsect3"> <a name="g-node-is-ancestor.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>descendant</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-is-ancestor.returns"></a><h4>Returns</h4> <p> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>node</code></em> is an ancestor of <em class="parameter"><code>descendant</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-max-height"></a><h3>g_node_max_height ()</h3> <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a> g_node_max_height (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *root</code></em>);</pre> <p>Gets the maximum height of all branches beneath a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. This is the maximum distance from the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to all leaf nodes.</p> <p>If <em class="parameter"><code>root</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, 0 is returned. If <em class="parameter"><code>root</code></em> has no children, 1 is returned. If <em class="parameter"><code>root</code></em> has children, 2 is returned. And so on.</p> <div class="refsect3"> <a name="g-node-max-height.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>root</p></td> <td class="parameter_description"><p>a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-node-max-height.returns"></a><h4>Returns</h4> <p> the maximum height of the tree beneath <em class="parameter"><code>root</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="g-node-unlink"></a><h3>g_node_unlink ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_node_unlink (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *node</code></em>);</pre> <p>Unlinks a <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> from a tree, resulting in two separate trees.</p> <div class="refsect3"> <a name="g-node-unlink.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>node</p></td> <td class="parameter_description"><p>the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> to unlink, which becomes the root of a new tree</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-node-destroy"></a><h3>g_node_destroy ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_node_destroy (<em class="parameter"><code><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *root</code></em>);</pre> <p>Removes <em class="parameter"><code>root</code></em> and its children from the tree, freeing any memory allocated.</p> <div class="refsect3"> <a name="g-node-destroy.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>root</p></td> <td class="parameter_description"><p>the root of the tree/subtree to destroy</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> </div> <div class="refsect1"> <a name="glib-N-ary-Trees.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="GNode"></a><h3>struct GNode</h3> <pre class="programlisting">struct GNode { gpointer data; GNode *next; GNode *prev; GNode *parent; GNode *children; }; </pre> <p>The <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> struct represents one node in a <a class="link" href="glib-N-ary-Trees.html" title="N-ary Trees">n-ary tree</a>.</p> <div class="refsect3"> <a name="GNode.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="struct_members_name"> <col class="struct_members_description"> <col width="200px" class="struct_members_annotations"> </colgroup> <tbody> <tr> <td class="struct_member_name"><p><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="GNode.data"></a>data</code></em>;</p></td> <td class="struct_member_description"><p>contains the actual data of the node.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *<em class="structfield"><code><a name="GNode.next"></a>next</code></em>;</p></td> <td class="struct_member_description"><p>points to the node's next sibling (a sibling is another <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> with the same parent).</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *<em class="structfield"><code><a name="GNode.prev"></a>prev</code></em>;</p></td> <td class="struct_member_description"><p>points to the node's previous sibling.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *<em class="structfield"><code><a name="GNode.parent"></a>parent</code></em>;</p></td> <td class="struct_member_description"><p>points to the parent of the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>, or is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> is the root of the tree.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a> *<em class="structfield"><code><a name="GNode.children"></a>children</code></em>;</p></td> <td class="struct_member_description"><p>points to the first child of the <a class="link" href="glib-N-ary-Trees.html#GNode" title="struct GNode"><span class="type">GNode</span></a>. The other children are accessed by using the <em class="parameter"><code>next</code></em> pointer of each child.</p></td> <td class="struct_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GTraverseType"></a><h3>enum GTraverseType</h3> <p>Specifies the type of traveral performed by <a class="link" href="glib-Balanced-Binary-Trees.html#g-tree-traverse" title="g_tree_traverse ()"><code class="function">g_tree_traverse()</code></a>, <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()"><code class="function">g_node_traverse()</code></a> and <a class="link" href="glib-N-ary-Trees.html#g-node-find" title="g_node_find ()"><code class="function">g_node_find()</code></a>. The different orders are illustrated here:</p> <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem"><p>In order: A, B, C, D, E, F, G, H, I <span class="inlinemediaobject"><img src="Sorted_binary_tree_inorder.svg"></span></p></li> <li class="listitem"><p>Pre order: F, B, A, D, C, E, G, I, H <span class="inlinemediaobject"><img src="Sorted_binary_tree_preorder.svg"></span></p></li> <li class="listitem"><p>Post order: A, C, E, D, B, H, I, G, F <span class="inlinemediaobject"><img src="Sorted_binary_tree_postorder.svg"></span></p></li> <li class="listitem"><p>Level order: F, B, G, A, D, I, C, E, H <span class="inlinemediaobject"><img src="Sorted_binary_tree_breadth-first_traversal.svg"></span></p></li> </ul></div> <div class="refsect3"> <a name="GTraverseType.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="enum_members_name"> <col class="enum_members_description"> <col width="200px" class="enum_members_annotations"> </colgroup> <tbody> <tr> <td class="enum_member_name"><p><a name="G-IN-ORDER:CAPS"></a>G_IN_ORDER</p></td> <td class="enum_member_description"> <p>vists a node's left child first, then the node itself, then its right child. This is the one to use if you want the output sorted according to the compare function.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-PRE-ORDER:CAPS"></a>G_PRE_ORDER</p></td> <td class="enum_member_description"> <p>visits a node, then its children.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-POST-ORDER:CAPS"></a>G_POST_ORDER</p></td> <td class="enum_member_description"> <p>visits the node's children, then the node itself.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-LEVEL-ORDER:CAPS"></a>G_LEVEL_ORDER</p></td> <td class="enum_member_description"> <p>is not implemented for <a class="link" href="glib-Balanced-Binary-Trees.html" title="Balanced Binary Trees">balanced binary trees</a>. For <a class="link" href="glib-N-ary-Trees.html" title="N-ary Trees">n-ary trees</a>, it vists the root node first, then its children, then its grandchildren, and so on. Note that this is less efficient than the other orders.</p> </td> <td class="enum_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GTraverseFlags"></a><h3>enum GTraverseFlags</h3> <p>Specifies which nodes are visited during several of the tree functions, including <a class="link" href="glib-N-ary-Trees.html#g-node-traverse" title="g_node_traverse ()"><code class="function">g_node_traverse()</code></a> and <a class="link" href="glib-N-ary-Trees.html#g-node-find" title="g_node_find ()"><code class="function">g_node_find()</code></a>.</p> <div class="refsect3"> <a name="GTraverseFlags.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="enum_members_name"> <col class="enum_members_description"> <col width="200px" class="enum_members_annotations"> </colgroup> <tbody> <tr> <td class="enum_member_name"><p><a name="G-TRAVERSE-LEAVES:CAPS"></a>G_TRAVERSE_LEAVES</p></td> <td class="enum_member_description"> <p>only leaf nodes should be visited. This name has been introduced in 2.6, for older version use <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAFS:CAPS"><code class="literal">G_TRAVERSE_LEAFS</code></a>.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-TRAVERSE-NON-LEAVES:CAPS"></a>G_TRAVERSE_NON_LEAVES</p></td> <td class="enum_member_description"> <p>only non-leaf nodes should be visited. This name has been introduced in 2.6, for older version use <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAFS:CAPS"><code class="literal">G_TRAVERSE_NON_LEAFS</code></a>.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-TRAVERSE-ALL:CAPS"></a>G_TRAVERSE_ALL</p></td> <td class="enum_member_description"> <p>all nodes should be visited.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-TRAVERSE-MASK:CAPS"></a>G_TRAVERSE_MASK</p></td> <td class="enum_member_description"> <p>a mask of all traverse flags.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-TRAVERSE-LEAFS:CAPS"></a>G_TRAVERSE_LEAFS</p></td> <td class="enum_member_description"> <p>identical to <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-LEAVES:CAPS"><code class="literal">G_TRAVERSE_LEAVES</code></a>.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-TRAVERSE-NON-LEAFS:CAPS"></a>G_TRAVERSE_NON_LEAFS</p></td> <td class="enum_member_description"> <p>identical to <a class="link" href="glib-N-ary-Trees.html#G-TRAVERSE-NON-LEAVES:CAPS"><code class="literal">G_TRAVERSE_NON_LEAVES</code></a>.</p> </td> <td class="enum_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>