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Илья Рудаков, 12/22/2009 04:12 PM

 
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Arrays</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.0"><link rel="start" href="index.html" title="GLib Reference Manual"><link rel="up" href="glib-data-types.html" title="GLib Data Types"><link rel="prev" href="glib-String-Chunks.html" title="String Chunks"><link rel="next" href="glib-Pointer-Arrays.html" title="Pointer Arrays"><meta name="generator" content="GTK-Doc V1.3 (XML mode)"><link rel="stylesheet" href="style.css" type="text/css"><link rel="chapter" href="glib.html" title="GLib Overview"><link rel="chapter" href="glib-fundamentals.html" title="GLib Fundamentals"><link rel="chapter" href="glib-core.html" title="GLib Core Application Support"><link rel="chapter" href="glib-utilities.html" title="GLib Utilities"><link rel="chapter" href="glib-data-types.html" title="GLib Data Types"><link rel="chapter" href="tools.html" title="GLib Tools"><link rel="index" href="ix01.html" title="Index"><link rel="index" href="ix02.html" title="Index of deprecated symbols"><link rel="index" href="ix03.html" title="Index of new symbols in 2.2"><link rel="index" href="ix04.html" title="Index of new symbols in 2.4"><link rel="index" href="ix05.html" title="Index of new symbols in 2.6"></head>

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<table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="glib-String-Chunks.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="glib-data-types.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">GLib Reference Manual</th><td><a accesskey="n" href="glib-Pointer-Arrays.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="refentry" lang="en"><a name="glib-Arrays"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><span class="refentrytitle">Arrays</span></h2><p>Arrays &#8212; arrays of arbitrary elements which grow automatically as elements are added.</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">

#include &lt;glib.h&gt;


<a href="glib-Arrays.html#GArray">GArray</a>;
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-new">g_array_new</a> (<a href="glib-Basic-Types.html#gboolean">gboolean</a> zero_terminated,
<a href="glib-Basic-Types.html#gboolean">gboolean</a> clear_,
<a href="glib-Basic-Types.html#guint">guint</a> element_size);
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-sized-new">g_array_sized_new</a> (<a href="glib-Basic-Types.html#gboolean">gboolean</a> zero_terminated,
<a href="glib-Basic-Types.html#gboolean">gboolean</a> clear_,
<a href="glib-Basic-Types.html#guint">guint</a> element_size,
<a href="glib-Basic-Types.html#guint">guint</a> reserved_size);
#define <a href="glib-Arrays.html#g-array-append-val">g_array_append_val</a> (a,v)
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-append-vals">g_array_append_vals</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#gconstpointer">gconstpointer</a> data,
<a href="glib-Basic-Types.html#guint">guint</a> len);
#define <a href="glib-Arrays.html#g-array-prepend-val">g_array_prepend_val</a> (a,v)
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-prepend-vals">g_array_prepend_vals</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#gconstpointer">gconstpointer</a> data,
<a href="glib-Basic-Types.html#guint">guint</a> len);
#define <a href="glib-Arrays.html#g-array-insert-val">g_array_insert_val</a> (a,i,v)
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-insert-vals">g_array_insert_vals</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_,
<a href="glib-Basic-Types.html#gconstpointer">gconstpointer</a> data,
<a href="glib-Basic-Types.html#guint">guint</a> len);
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-remove-index">g_array_remove_index</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_);
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-remove-index-fast">g_array_remove_index_fast</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_);
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-remove-range">g_array_remove_range</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_,
<a href="glib-Basic-Types.html#guint">guint</a> length);
void <a href="glib-Arrays.html#g-array-sort">g_array_sort</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Doubly-Linked-Lists.html#GCompareFunc">GCompareFunc</a> compare_func);
void <a href="glib-Arrays.html#g-array-sort-with-data">g_array_sort_with_data</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Doubly-Linked-Lists.html#GCompareDataFunc">GCompareDataFunc</a> compare_func,
<a href="glib-Basic-Types.html#gpointer">gpointer</a> user_data);
#define <a href="glib-Arrays.html#g-array-index">g_array_index</a> (a,t,i)
<a href="glib-Arrays.html#GArray">GArray</a>* <a href="glib-Arrays.html#g-array-set-size">g_array_set_size</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> length);
<a href="glib-Basic-Types.html#gchar">gchar</a>* <a href="glib-Arrays.html#g-array-free">g_array_free</a> (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#gboolean">gboolean</a> free_segment);
</pre></div><div class="refsect1" lang="en"><a name="id3224671"></a><h2>Description</h2><p>
Arrays are similar to standard C arrays, except that they grow automatically
as elements are added.
</p><p>
Array elements can be of any size (though all elements of one array are the
same size), and the array can be automatically cleared to '0's and
zero-terminated.
</p><p>
To create a new array use <a href="glib-Arrays.html#g-array-new"><tt class="function">g_array_new()</tt></a>.
</p><p>
To add elements to an array, use <a href="glib-Arrays.html#g-array-append-val"><tt class="function">g_array_append_val()</tt></a>, <a href="glib-Arrays.html#g-array-append-vals"><tt class="function">g_array_append_vals()</tt></a>,
<a href="glib-Arrays.html#g-array-prepend-val"><tt class="function">g_array_prepend_val()</tt></a>, and <a href="glib-Arrays.html#g-array-prepend-vals"><tt class="function">g_array_prepend_vals()</tt></a>.
</p><p>
To access an element of an array, use <a href="glib-Arrays.html#g-array-index"><tt class="function">g_array_index()</tt></a>.
</p><p>
To set the size of an array, use <a href="glib-Arrays.html#g-array-set-size"><tt class="function">g_array_set_size()</tt></a>.
</p><p>
To free an array, use <a href="glib-Arrays.html#g-array-free"><tt class="function">g_array_free()</tt></a>.
</p><div class="example"><a name="id3224791"></a><p class="title"><b>Example 3. Using a <span class="structname">GArray</span> to store <span class="type">gint</span> values</b></p><pre class="programlisting">
GArray *garray;
gint i;

/* We create a new array to store gint values.
We don't want it zero-terminated or cleared to 0's. */
garray = g_array_new (FALSE, FALSE, sizeof (gint));
for (i = 0; i &lt; 10000; i++)
g_array_append_val (garray, i);

for (i = 0; i &lt; 10000; i++)
if (g_array_index (garray, gint, i) != i)
g_print ("ERROR: got %d instead of %d\n",
g_array_index (garray, gint, i), i);

g_array_free (garray, TRUE);
</pre></div></div><div class="refsect1" lang="en"><a name="id3224809"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id3224826"></a><h3><a name="GArray"></a>GArray</h3><a class="indexterm" name="id3224834"></a><pre class="programlisting">typedef struct {
gchar *data;
guint len;
} GArray;
</pre><p>
Contains the public fields of an Array.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><a href="glib-Basic-Types.html#gchar">gchar</a> *<i class="structfield"><tt>data</tt></i>;</span></td><td>a pointer to the element data. The data may be moved as elements are
added to the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><a href="glib-Basic-Types.html#guint">guint</a> <i class="structfield"><tt>len</tt></i>;</span></td><td>the number of elements in the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.

</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3224920"></a><h3><a name="g-array-new"></a>g_array_new ()</h3><a class="indexterm" name="id3224930"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_new (<a href="glib-Basic-Types.html#gboolean">gboolean</a> zero_terminated,
<a href="glib-Basic-Types.html#gboolean">gboolean</a> clear_,
<a href="glib-Basic-Types.html#guint">guint</a> element_size);</pre><p>
Creates a new <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>zero_terminated</tt></i> :</span></td><td><tt class="literal">TRUE</tt> if the array should have an extra element at the end
which is set to 0.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>clear_</tt></i> :</span></td><td><tt class="literal">TRUE</tt> if <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> elements should be automatically cleared to 0
when they are allocated.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>element_size</tt></i> :</span></td><td>the size of each element in bytes.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the new <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225066"></a><h3><a name="g-array-sized-new"></a>g_array_sized_new ()</h3><a class="indexterm" name="id3225077"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_sized_new (<a href="glib-Basic-Types.html#gboolean">gboolean</a> zero_terminated,
<a href="glib-Basic-Types.html#gboolean">gboolean</a> clear_,
<a href="glib-Basic-Types.html#guint">guint</a> element_size,
<a href="glib-Basic-Types.html#guint">guint</a> reserved_size);</pre><p>
Creates a new <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> with <i class="parameter"><tt>reserved_size</tt></i> elements
preallocated. This avoids frequent reallocation, if you are going to
add many elements to the array. Note however that the size of the
array is still 0.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>zero_terminated</tt></i> :</span></td><td><tt class="literal">TRUE</tt> if the array should have an extra element at the end with all bits cleared.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>clear_</tt></i> :</span></td><td><tt class="literal">TRUE</tt> if all bits in the array should be cleared to 0 on allocation.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>element_size</tt></i> :</span></td><td>size of each element in the array.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>reserved_size</tt></i> :</span></td><td>number of elements preallocated.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the new <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225236"></a><h3><a name="g-array-append-val"></a>g_array_append_val()</h3><a class="indexterm" name="id3225247"></a><pre class="programlisting">#define g_array_append_val(a,v)</pre><p>
Adds the value on to the end of the array.
The array will grow in size automatically if necessary.
</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>
<a href="glib-Arrays.html#g-array-append-val"><tt class="function">g_array_append_val()</tt></a> is a macro which uses a reference to the value
parameter <i class="parameter"><tt>v</tt></i>. This means that you cannot use it with literal values
such as "27". You must use variables.
</p></div><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>a</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>v</tt></i> :</span></td><td>the value to append to the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225354"></a><h3><a name="g-array-append-vals"></a>g_array_append_vals ()</h3><a class="indexterm" name="id3225365"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_append_vals (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#gconstpointer">gconstpointer</a> data,
<a href="glib-Basic-Types.html#guint">guint</a> len);</pre><p>
Adds <i class="parameter"><tt>len</tt></i> elements onto the end of the array.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>data</tt></i> :</span></td><td>a pointer to the elements to append to the end of the array.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>len</tt></i> :</span></td><td>the number of elements to append.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225487"></a><h3><a name="g-array-prepend-val"></a>g_array_prepend_val()</h3><a class="indexterm" name="id3225498"></a><pre class="programlisting">#define g_array_prepend_val(a,v)</pre><p>
Adds the value on to the start of the array.
The array will grow in size automatically if necessary.
</p><p>
This operation is slower than <a href="glib-Arrays.html#g-array-append-val"><tt class="function">g_array_append_val()</tt></a> since the existing elements
in the array have to be moved to make space for the new element.
</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>
<a href="glib-Arrays.html#g-array-prepend-val"><tt class="function">g_array_prepend_val()</tt></a> is a macro which uses a reference to the value
parameter <i class="parameter"><tt>v</tt></i>. This means that you cannot use it with literal values
such as "27". You must use variables.
</p></div><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>a</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>v</tt></i> :</span></td><td>the value to prepend to the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225622"></a><h3><a name="g-array-prepend-vals"></a>g_array_prepend_vals ()</h3><a class="indexterm" name="id3225633"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_prepend_vals (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#gconstpointer">gconstpointer</a> data,
<a href="glib-Basic-Types.html#guint">guint</a> len);</pre><p>
Adds <i class="parameter"><tt>len</tt></i> elements onto the start of the array.
</p><p>
This operation is slower than <a href="glib-Arrays.html#g-array-append-vals"><tt class="function">g_array_append_vals()</tt></a> since the existing elements
in the array have to be moved to make space for the new elements.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>data</tt></i> :</span></td><td>a pointer to the elements to prepend to the start of the array.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>len</tt></i> :</span></td><td>the number of elements to prepend.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225772"></a><h3><a name="g-array-insert-val"></a>g_array_insert_val()</h3><a class="indexterm" name="id3225783"></a><pre class="programlisting">#define g_array_insert_val(a,i,v)</pre><p>
Inserts an element into an array at the given index.
</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>
<a href="glib-Arrays.html#g-array-insert-val"><tt class="function">g_array_insert_val()</tt></a> is a macro which uses a reference to the value
parameter <i class="parameter"><tt>v</tt></i>. This means that you cannot use it with literal values
such as "27". You must use variables.
</p></div><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>a</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>i</tt></i> :</span></td><td>the index to place the element at.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>v</tt></i> :</span></td><td>the value to insert into the array.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3225896"></a><h3><a name="g-array-insert-vals"></a>g_array_insert_vals ()</h3><a class="indexterm" name="id3225907"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_insert_vals (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_,
<a href="glib-Basic-Types.html#gconstpointer">gconstpointer</a> data,
<a href="glib-Basic-Types.html#guint">guint</a> len);</pre><p>
Inserts <i class="parameter"><tt>len</tt></i> elements into a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> at the given index.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>index_</tt></i> :</span></td><td>the index to place the elements at.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>data</tt></i> :</span></td><td>a pointer to the elements to insert.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>len</tt></i> :</span></td><td>the number of elements to insert.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226059"></a><h3><a name="g-array-remove-index"></a>g_array_remove_index ()</h3><a class="indexterm" name="id3226069"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_remove_index (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_);</pre><p>
Removes the element at the given index from a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
The following elements are moved down one place.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>index_</tt></i> :</span></td><td>the index of the element to remove.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226173"></a><h3><a name="g-array-remove-index-fast"></a>g_array_remove_index_fast ()</h3><a class="indexterm" name="id3226185"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_remove_index_fast (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_);</pre><p>
Removes the element at the given index from a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
The last element in the array is used to fill in the space, so this function
does not preserve the order of the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>. But it is faster than
<a href="glib-Arrays.html#g-array-remove-index"><tt class="function">g_array_remove_index()</tt></a>.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <i class="parameter"><tt>GArray</tt></i>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>index_</tt></i> :</span></td><td>the index of the element to remove.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226306"></a><h3><a name="g-array-remove-range"></a>g_array_remove_range ()</h3><a class="indexterm" name="id3226316"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_remove_range (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> index_,
<a href="glib-Basic-Types.html#guint">guint</a> length);</pre><p>
Removes the given number of elements starting at the given index from a
<a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>. The following elements are moved to close the gap.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <i class="parameter"><tt>GArray</tt></i>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>index_</tt></i> :</span></td><td>the index of the first element to remove.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>length</tt></i> :</span></td><td>the number of elements to remove.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr></tbody></table></div><p>Since 2.4


</p></div><hr><div class="refsect2" lang="en"><a name="id3226445"></a><h3><a name="g-array-sort"></a>g_array_sort ()</h3><a class="indexterm" name="id3226455"></a><pre class="programlisting">void g_array_sort (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Doubly-Linked-Lists.html#GCompareFunc">GCompareFunc</a> compare_func);</pre><p>
Sorts a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> using <i class="parameter"><tt>compare_func</tt></i> which should be a <tt class="function">qsort()</tt>-style comparison
function (returns -1 for first arg is less than second arg, 0 for equal, 1 if
first arg is greater than second arg).
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>compare_func</tt></i> :</span></td><td>comparison function.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226558"></a><h3><a name="g-array-sort-with-data"></a>g_array_sort_with_data ()</h3><a class="indexterm" name="id3226569"></a><pre class="programlisting">void g_array_sort_with_data (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Doubly-Linked-Lists.html#GCompareDataFunc">GCompareDataFunc</a> compare_func,
<a href="glib-Basic-Types.html#gpointer">gpointer</a> user_data);</pre><p>
Like <a href="glib-Arrays.html#g-array-sort"><tt class="function">g_array_sort()</tt></a>, but the comparison function receives a user data
argument.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>compare_func</tt></i> :</span></td><td>comparison function.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>user_data</tt></i> :</span></td><td>data to pass to <i class="parameter"><tt>compare_func</tt></i>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226685"></a><h3><a name="g-array-index"></a>g_array_index()</h3><a class="indexterm" name="id3226696"></a><pre class="programlisting">#define g_array_index(a,t,i)</pre><p>
Returns the element of a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> at the given index.
The return value is cast to the given type.

</p><div class="example"><a name="id3226719"></a><p class="title"><b>Example 4. Getting a pointer to an element in a <span class="structname">GArray</span></b></p><pre class="programlisting">
EDayViewEvent *event;

/* This gets a pointer to the 3rd element in the array of EDayViewEvent
structs. */
event = &amp;g_array_index (events, EDayViewEvent, 3);
</pre></div><p>
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>a</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>t</tt></i> :</span></td><td>the type of the elements.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>i</tt></i> :</span></td><td>the index of the element to return.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the element of the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> at the index given by <i class="parameter"><tt>i</tt></i>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226818"></a><h3><a name="g-array-set-size"></a>g_array_set_size ()</h3><a class="indexterm" name="id3226829"></a><pre class="programlisting"><a href="glib-Arrays.html#GArray">GArray</a>* g_array_set_size (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#guint">guint</a> length);</pre><p>
Sets the size of the array, expanding it if necessary.
If the array was created with <i class="parameter"><tt>clear_</tt></i> set to <tt class="literal">TRUE</tt>, the new elements are set to 0.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>length</tt></i> :</span></td><td>the new size of the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.


</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3226944"></a><h3><a name="g-array-free"></a>g_array_free ()</h3><a class="indexterm" name="id3226955"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gchar">gchar</a>* g_array_free (<a href="glib-Arrays.html#GArray">GArray</a> *array,
<a href="glib-Basic-Types.html#gboolean">gboolean</a> free_segment);</pre><p>
Frees the memory allocated for the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
If <i class="parameter"><tt>free_segment</tt></i> is <tt class="literal">TRUE</tt> it frees the actual element data as well.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>array</tt></i> :</span></td><td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>free_segment</tt></i> :</span></td><td>if <tt class="literal">TRUE</tt> the actual element data is freed as well.
</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the element data if <i class="parameter"><tt>free_segment</tt></i> is <tt class="literal">FALSE</tt>, otherwise <tt class="literal">NULL</tt>


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