glib-arrays.html

glid编写实例

</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3158777"></a><h3>
<a name="g-array-remove-index-fast"></a>g_array_remove_index_fast ()</h3>
<a class="indexterm" name="id3158789"></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"><code class="function">g_array_remove_index()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>array</code></em>&#160;:</span></td>
<td>a <em class="parameter"><code>GArray</code></em>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>index_</code></em>&#160;:</span></td>
<td>the index of the element to remove.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</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="id3158910"></a><h3>
<a name="g-array-remove-range"></a>g_array_remove_range ()</h3>
<a class="indexterm" name="id3158921"></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"><em class="parameter"><code>array</code></em>&#160;:</span></td>
<td>a <em class="parameter"><code>GArray</code></em>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>index_</code></em>&#160;:</span></td>
<td>the index of the first element to remove.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>length</code></em>&#160;:</span></td>
<td>the number of elements to remove.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</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="id3159049"></a><h3>
<a name="g-array-sort"></a>g_array_sort ()</h3>
<a class="indexterm" name="id3159059"></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 <em class="parameter"><code>compare_func</code></em> which should be a <code class="function">qsort()</code>-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"><em class="parameter"><code>array</code></em>&#160;:</span></td>
<td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>compare_func</code></em>&#160;:</span></td>
<td>comparison function.


</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3159162"></a><h3>
<a name="g-array-sort-with-data"></a>g_array_sort_with_data ()</h3>
<a class="indexterm" name="id3159173"></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"><code class="function">g_array_sort()</code></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"><em class="parameter"><code>array</code></em>&#160;:</span></td>
<td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>compare_func</code></em>&#160;:</span></td>
<td>comparison function.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td>data to pass to <em class="parameter"><code>compare_func</code></em>.


</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3159289"></a><h3>
<a name="g-array-index"></a>g_array_index()</h3>
<a class="indexterm" name="id3159300"></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="id3159323"></a><p class="title"><b>Example&#160;4.&#160;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"><em class="parameter"><code>a</code></em>&#160;:</span></td>
<td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>t</code></em>&#160;:</span></td>
<td>the type of the elements.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>i</code></em>&#160;:</span></td>
<td>the index of the element to return.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td>the element of the <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a> at the index given by <em class="parameter"><code>i</code></em>.


</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3159422"></a><h3>
<a name="g-array-set-size"></a>g_array_set_size ()</h3>
<a class="indexterm" name="id3159433"></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 <em class="parameter"><code>clear_</code></em> set to <code class="literal">TRUE</code>, 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"><em class="parameter"><code>array</code></em>&#160;:</span></td>
<td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>length</code></em>&#160;:</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>&#160;:</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="id3159548"></a><h3>
<a name="g-array-free"></a>g_array_free ()</h3>
<a class="indexterm" name="id3159559"></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 <em class="parameter"><code>free_segment</code></em> is <code class="literal">TRUE</code> 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"><em class="parameter"><code>array</code></em>&#160;:</span></td>
<td>a <a href="glib-Arrays.html#GArray"><span class="type">GArray</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>free_segment</code></em>&#160;:</span></td>
<td>if <code class="literal">TRUE</code> the actual element data is freed as well.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td>the element data if <em class="parameter"><code>free_segment</code></em> is <code class="literal">FALSE</code>, otherwise <code class="literal">NULL</code>


</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle">
<td align="left"><a accesskey="p" href="glib-String-Chunks.html"><b>&lt;&lt;&#160;String Chunks</b></a></td>
<td align="right"><a accesskey="n" href="glib-Pointer-Arrays.html"><b>Pointer Arrays&#160;&gt;&gt;</b></a></td>
</tr></table>
</body>
</html>