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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#harfbuzz-hb-map.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="harfbuzz-hb-map"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="harfbuzz-hb-map.top_of_page"></a>hb-map</span></h2>
<p>hb-map — Object representing integer to integer mapping</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="harfbuzz-hb-map.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="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-allocation-successful" title="hb_map_allocation_successful ()">hb_map_allocation_successful</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="harfbuzz-hb-map.html#hb-map-clear" title="hb_map_clear ()">hb_map_clear</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-create" title="hb_map_create ()">hb_map_create</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="harfbuzz-hb-map.html#hb-map-del" title="hb_map_del ()">hb_map_del</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="harfbuzz-hb-map.html#hb-map-destroy" title="hb_map_destroy ()">hb_map_destroy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="returnvalue">hb_codepoint_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-get" title="hb_map_get ()">hb_map_get</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-get-empty" title="hb_map_get_empty ()">hb_map_get_empty</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">unsigned <span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-get-population" title="hb_map_get_population ()">hb_map_get_population</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="harfbuzz-hb-map.html#hb-map-get-user-data" title="hb_map_get_user_data ()">hb_map_get_user_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-has" title="hb_map_has ()">hb_map_has</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-is-empty" title="hb_map_is_empty ()">hb_map_is_empty</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-reference" title="hb_map_reference ()">hb_map_reference</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="harfbuzz-hb-map.html#hb-map-set" title="hb_map_set ()">hb_map_set</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-map.html#hb-map-set-user-data" title="hb_map_set_user_data ()">hb_map_set_user_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-map.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="define_keyword">#define</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-map.html#HB-MAP-VALUE-INVALID:CAPS" title="HB_MAP_VALUE_INVALID">HB_MAP_VALUE_INVALID</a></td>
</tr>
<tr>
<td class="typedef_keyword">typedef</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t">hb_map_t</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-map.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;hb.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-map.description"></a><h2>Description</h2>
<p>Map objects are integer-to-integer hash-maps.  Currently they are
not used in the HarfBuzz public API, but are provided for client's
use if desired.</p>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-map.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="hb-map-allocation-successful"></a><h3>hb_map_allocation_successful ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_map_allocation_successful (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre>
<p>Tests whether memory allocation for a set was successful.</p>
<div class="refsect3">
<a name="hb-map-allocation-successful.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-allocation-successful.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if allocation succeeded, false otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-clear"></a><h3>hb_map_clear ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_map_clear (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre>
<p>Clears out the contents of <em class="parameter"><code>map</code></em>
.</p>
<div class="refsect3">
<a name="hb-map-clear.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-create"></a><h3>hb_map_create ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> *
hb_map_create (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new, initially empty map.</p>
<p><span class="annotation">[Xconstructor]</span></p>
<div class="refsect3">
<a name="hb-map-create.returns"></a><h4>Returns</h4>
<p>The new <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-del"></a><h3>hb_map_del ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_map_del (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>,
            <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>);</pre>
<p>Removes <em class="parameter"><code>key</code></em>
 and its stored value from <em class="parameter"><code>map</code></em>
.</p>
<div class="refsect3">
<a name="hb-map-del.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The key to delete</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-destroy"></a><h3>hb_map_destroy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_map_destroy (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre>
<p>Decreases the reference count on a map. When
the reference count reaches zero, the map is
destroyed, freeing all memory.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-map-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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-get"></a><h3>hb_map_get ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="returnvalue">hb_codepoint_t</span></a>
hb_map_get (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>,
            <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>);</pre>
<p>Fetches the value stored for <em class="parameter"><code>key</code></em>
 in <em class="parameter"><code>map</code></em>
.</p>
<div class="refsect3">
<a name="hb-map-get.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The key to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-get-empty"></a><h3>hb_map_get_empty ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> *
hb_map_get_empty (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Fetches the singleton empty <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a>.</p>
<div class="refsect3">
<a name="hb-map-get-empty.returns"></a><h4>Returns</h4>
<p>The empty <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-get-population"></a><h3>hb_map_get_population ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">int</span>
hb_map_get_population (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre>
<p>Returns the number of key-value pairs in the map.</p>
<div class="refsect3">
<a name="hb-map-get-population.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-get-population.returns"></a><h4>Returns</h4>
<p> The population of <em class="parameter"><code>map</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-get-user-data"></a><h3>hb_map_get_user_data ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> *
hb_map_get_user_data (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>,
                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-user-data-key-t" title="hb_user_data_key_t"><span class="type">hb_user_data_key_t</span></a> *key</code></em>);</pre>
<p>Fetches the user data associated with the specified key,
attached to the specified map.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-map-get-user-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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The user-data key to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-get-user-data.returns"></a><h4>Returns</h4>
<p>A pointer to the user data. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-has"></a><h3>hb_map_has ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_map_has (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>,
            <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>);</pre>
<p>Tests whether <em class="parameter"><code>key</code></em>
 is an element of <em class="parameter"><code>map</code></em>
.</p>
<div class="refsect3">
<a name="hb-map-has.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The key to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-has.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if <em class="parameter"><code>key</code></em>
is found in <em class="parameter"><code>map</code></em>
, false otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-is-empty"></a><h3>hb_map_is_empty ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_map_is_empty (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre>
<p>Tests whether <em class="parameter"><code>map</code></em>
 is empty (contains no elements).</p>
<div class="refsect3">
<a name="hb-map-is-empty.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-is-empty.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if <em class="parameter"><code>map</code></em>
is empty</p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-reference"></a><h3>hb_map_reference ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> *
hb_map_reference (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre>
<p>Increases the reference count on a map.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-map-reference.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-reference.returns"></a><h4>Returns</h4>
<p>The map. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-set"></a><h3>hb_map_set ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_map_set (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>,
            <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>,
            <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> value</code></em>);</pre>
<p>Stores <em class="parameter"><code>key</code></em>
:<em class="parameter"><code>value</code></em>
 in the map.</p>
<div class="refsect3">
<a name="hb-map-set.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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The key to store in the map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>The value to store for <em class="parameter"><code>key</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-set-user-data"></a><h3>hb_map_set_user_data ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_map_set_user_data (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>,
                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-user-data-key-t" title="hb_user_data_key_t"><span class="type">hb_user_data_key_t</span></a> *key</code></em>,
                      <em class="parameter"><code><span class="type">void</span> *data</code></em>,
                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>,
                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> replace</code></em>);</pre>
<p>Attaches a user-data key/data pair to the specified map.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-map-set-user-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>map</p></td>
<td class="parameter_description"><p>A map</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The user-data key to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>A pointer to the user data to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>A callback to call when <em class="parameter"><code>data</code></em>
is not needed anymore. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed instead of a pointer to a location."><span class="acronym">optional</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>replace</p></td>
<td class="parameter_description"><p>Whether to replace an existing data with the same key</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-map-set-user-data.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if success, <code class="literal">false</code> otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p>
</div>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-map.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="HB-MAP-VALUE-INVALID:CAPS"></a><h3>HB_MAP_VALUE_INVALID</h3>
<pre class="programlisting">#define HB_MAP_VALUE_INVALID ((hb_codepoint_t) -1)
</pre>
</div>
<hr>
<div class="refsect2">
<a name="hb-map-t"></a><h3>hb_map_t</h3>
<pre class="programlisting">typedef struct hb_map_t hb_map_t;
</pre>
<p>Data type for holding integer-to-integer hash maps.</p>
</div>
</div>
</div>
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