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<li class="navelem"><a class="el" href="namespaceGlib.html">Glib</a></li><li class="navelem"><a class="el" href="namespaceGlib_1_1Container__Helpers.html">Container_Helpers</a></li><li class="navelem"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">ArrayKeeper</a></li> </ul>
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<a href="#pub-types">Public Types</a> |
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<div class="title">Glib::Container_Helpers::ArrayKeeper< Tr > Class Template Reference</div> </div>
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<p>A keeper class for C array.
<a href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#details">More...</a></p>
<p><code>#include <glibmm/vectorutils.h></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a71580ea30bdbe2abdf09d90a99540411"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a71580ea30bdbe2abdf09d90a99540411">CppType</a> = typename Tr::CppType</td></tr>
<tr class="separator:a71580ea30bdbe2abdf09d90a99540411"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a001e4008744d1bb974a31d6cb6237562"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a001e4008744d1bb974a31d6cb6237562">CType</a> = typename Tr::CType</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a5aef24f8ff4c0f9d5e5b75f34ed5557e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a5aef24f8ff4c0f9d5e5b75f34ed5557e">ArrayKeeper</a> (const <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a001e4008744d1bb974a31d6cb6237562">CType</a>* array, std::size_t array_size, <a class="el" href="group__ContHandles.html#ga64c27560b41710ccf64a3679a3ba3f20">Glib::OwnershipType</a> ownership)</td></tr>
<tr class="memdesc:a5aef24f8ff4c0f9d5e5b75f34ed5557e"><td class="mdescLeft"> </td><td class="mdescRight">Constructs an <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html" title="A keeper class for C array. ">ArrayKeeper</a> holding <em>array</em> of size <em>array_size</em>. <a href="#a5aef24f8ff4c0f9d5e5b75f34ed5557e">More...</a><br /></td></tr>
<tr class="separator:a5aef24f8ff4c0f9d5e5b75f34ed5557e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a738365225944b868725261e4a6a78e19"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a738365225944b868725261e4a6a78e19">ArrayKeeper</a> (const <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">ArrayKeeper</a>& keeper)</td></tr>
<tr class="separator:a738365225944b868725261e4a6a78e19"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac393065acda97ba912eacf78c1b68410"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#ac393065acda97ba912eacf78c1b68410">~ArrayKeeper</a> () noexcept</td></tr>
<tr class="separator:ac393065acda97ba912eacf78c1b68410"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a18f975bdb32d597905cac18321853676"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a001e4008744d1bb974a31d6cb6237562">CType</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a18f975bdb32d597905cac18321853676">data</a> () const </td></tr>
<tr class="memdesc:a18f975bdb32d597905cac18321853676"><td class="mdescLeft"> </td><td class="mdescRight">Gets data the keeper holds. <a href="#a18f975bdb32d597905cac18321853676">More...</a><br /></td></tr>
<tr class="separator:a18f975bdb32d597905cac18321853676"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<typename Tr><br />
class Glib::Container_Helpers::ArrayKeeper< Tr ></h3>
<p>A keeper class for C array. </p>
<p>Primarily used by C++ wrappers like gtkmm.</p>
<p>Its main purpose is to free its data when they are not needed. What will be destroyed depends on passed ownership upon construction.</p>
<p>The most common usage of Glib::ArrayKeeper is getting its data when converting <a class="elRef" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a06912.html">std::vector</a> to a C array: </p><div class="fragment"><div class="line"><span class="keywordtype">void</span> G::Temp::do_something(<span class="keyword">const</span> <a class="codeRef" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a06912.html">std::vector<int></a>& v)</div><div class="line">{</div><div class="line"> g_temp_do_something(gobj(), <a class="code" href="classGlib_1_1ArrayHandler.html">Glib::ArrayHandler<int>::vector_to_array</a>(v).<a class="code" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a18f975bdb32d597905cac18321853676">data</a>());</div><div class="line">}</div></div><!-- fragment --><p> Variables of this class are seldom defined directly - it is mostly used as a temporary variable returned by <a class="el" href="classGlib_1_1ArrayHandler.html#a563ad995495dd87c559f9c4c26f4c6f0">Glib::ArrayHandler::vector_to_array()</a>.</p>
<p>Note that the usage above is correct with regards to C++ standard point 12.2.3. That means that data returned by <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a18f975bdb32d597905cac18321853676" title="Gets data the keeper holds. ">data()</a> method is valid through whole g_temp_do_something function and is destroyed, when this function returns. </p>
</div><h2 class="groupheader">Member Typedef Documentation</h2>
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template <typename Tr > </div>
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<td class="memname">using <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">Glib::Container_Helpers::ArrayKeeper</a>< Tr >::<a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a71580ea30bdbe2abdf09d90a99540411">CppType</a> = typename Tr::CppType</td>
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template <typename Tr > </div>
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<td class="memname">using <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">Glib::Container_Helpers::ArrayKeeper</a>< Tr >::<a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a001e4008744d1bb974a31d6cb6237562">CType</a> = typename Tr::CType</td>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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template <typename Tr > </div>
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<td class="memname"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">Glib::Container_Helpers::ArrayKeeper</a>< Tr >::<a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">ArrayKeeper</a> </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a001e4008744d1bb974a31d6cb6237562">CType</a>* </td>
<td class="paramname"><em>array</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>array_size</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__ContHandles.html#ga64c27560b41710ccf64a3679a3ba3f20">Glib::OwnershipType</a> </td>
<td class="paramname"><em>ownership</em> </td>
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<td>)</td>
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<p>Constructs an <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html" title="A keeper class for C array. ">ArrayKeeper</a> holding <em>array</em> of size <em>array_size</em>. </p>
<p><em>ownership</em> tells what should be destroyed with keeper destruction: </p><ul>
<li>
<a class="el" href="group__ContHandles.html#gga64c27560b41710ccf64a3679a3ba3f20a7d594cffcc2d2d6c4313ddb4d6613c79">Glib::OWNERSHIP_NONE</a> - keeper won't destroy data it holds. </li>
<li>
<a class="el" href="group__ContHandles.html#gga64c27560b41710ccf64a3679a3ba3f20a448c598cdc37e2de8a162e1020001715">Glib::OWNERSHIP_SHALLOW</a> - keeper will destroy only container it holds. </li>
<li>
<a class="el" href="group__ContHandles.html#gga64c27560b41710ccf64a3679a3ba3f20a2a6d6bfadc36f9eda31af79d32928c6a">Glib::OWNERSHIP_DEEP</a> - keeper will destroy data and container it holds. </li>
</ul>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">array</td><td>- C array to hold. </td></tr>
<tr><td class="paramname">array_size</td><td>- length of <em>array</em>. </td></tr>
<tr><td class="paramname">ownership</td><td>- ownership definition. </td></tr>
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template <typename Tr > </div>
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<td class="memname"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">Glib::Container_Helpers::ArrayKeeper</a>< Tr >::<a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">ArrayKeeper</a> </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">ArrayKeeper</a>< Tr >& </td>
<td class="paramname"><em>keeper</em></td><td>)</td>
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<td class="memname"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">Glib::Container_Helpers::ArrayKeeper</a>< Tr >::~<a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">ArrayKeeper</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname"><a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html#a001e4008744d1bb974a31d6cb6237562">CType</a>* <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html">Glib::Container_Helpers::ArrayKeeper</a>< Tr >::data </td>
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<p>Gets data the keeper holds. </p>
<p>Note that this data is owned by the keeper, so there is no need to free it.</p>
<dl class="section return"><dt>Returns</dt><dd>C array owned by <a class="el" href="classGlib_1_1Container__Helpers_1_1ArrayKeeper.html" title="A keeper class for C array. ">ArrayKeeper</a>. </dd></dl>
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