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<li class="navelem"><a class="el" href="namespaceCairo.html">Cairo</a></li><li class="navelem"><a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a></li> </ul>
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<div class="title">Cairo::RefPtr< T_CppObject > Class Template Reference</div> </div>
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<p>RefPtr<> is a reference-counting shared smartpointer.
<a href="classCairo_1_1RefPtr.html#details">More...</a></p>
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Inheritance diagram for Cairo::RefPtr< T_CppObject >:</div>
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<div class="center"><img src="classCairo_1_1RefPtr__inherit__graph.png" border="0" usemap="#Cairo_1_1RefPtr_3_01T__CppObject_01_4_inherit__map" alt="Inheritance graph"/></div>
<map name="Cairo_1_1RefPtr_3_01T__CppObject_01_4_inherit__map" id="Cairo_1_1RefPtr_3_01T__CppObject_01_4_inherit__map">
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ad818ee4774212dbd29112e39e101198e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#ad818ee4774212dbd29112e39e101198e">RefPtr</a> () noexcept</td></tr>
<tr class="memdesc:ad818ee4774212dbd29112e39e101198e"><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <a href="#ad818ee4774212dbd29112e39e101198e">More...</a><br /></td></tr>
<tr class="separator:ad818ee4774212dbd29112e39e101198e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7449c6c42857a06c601a7564a403ad9a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a7449c6c42857a06c601a7564a403ad9a">~RefPtr</a> () noexcept</td></tr>
<tr class="memdesc:a7449c6c42857a06c601a7564a403ad9a"><td class="mdescLeft"> </td><td class="mdescRight">Destructor - decrements reference count. <a href="#a7449c6c42857a06c601a7564a403ad9a">More...</a><br /></td></tr>
<tr class="separator:a7449c6c42857a06c601a7564a403ad9a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a61ee3e164f0a7248e5b22fe2cf1e74b4"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a61ee3e164f0a7248e5b22fe2cf1e74b4">RefPtr</a> (T_CppObject* pCppObject) noexcept</td></tr>
<tr class="memdesc:a61ee3e164f0a7248e5b22fe2cf1e74b4"><td class="mdescLeft"> </td><td class="mdescRight">For use only in the internal implementation of cairomm, gtkmm, etc. <a href="#a61ee3e164f0a7248e5b22fe2cf1e74b4">More...</a><br /></td></tr>
<tr class="separator:a61ee3e164f0a7248e5b22fe2cf1e74b4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9571e746dcf28b99e2e51ebae0fb35a1"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a9571e746dcf28b99e2e51ebae0fb35a1">RefPtr</a> (T_CppObject* pCppObject, int* refcount) noexcept</td></tr>
<tr class="memdesc:a9571e746dcf28b99e2e51ebae0fb35a1"><td class="mdescLeft"> </td><td class="mdescRight">For use only in the internal implementation of sharedptr. <a href="#a9571e746dcf28b99e2e51ebae0fb35a1">More...</a><br /></td></tr>
<tr class="separator:a9571e746dcf28b99e2e51ebae0fb35a1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a33be2213aa14b184a8c2c6477ae6ce3c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a33be2213aa14b184a8c2c6477ae6ce3c">RefPtr</a> (<a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>&& src) noexcept</td></tr>
<tr class="memdesc:a33be2213aa14b184a8c2c6477ae6ce3c"><td class="mdescLeft"> </td><td class="mdescRight">Move constructor. <a href="#a33be2213aa14b184a8c2c6477ae6ce3c">More...</a><br /></td></tr>
<tr class="separator:a33be2213aa14b184a8c2c6477ae6ce3c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8d2a9e0461793104b51efbef7f73d355"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:a8d2a9e0461793104b51efbef7f73d355"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a8d2a9e0461793104b51efbef7f73d355">RefPtr</a> (<a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >&& src) noexcept</td></tr>
<tr class="memdesc:a8d2a9e0461793104b51efbef7f73d355"><td class="mdescLeft"> </td><td class="mdescRight">Move constructor (from different, but castable type). <a href="#a8d2a9e0461793104b51efbef7f73d355">More...</a><br /></td></tr>
<tr class="separator:a8d2a9e0461793104b51efbef7f73d355"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a41f1ceed87262d3148b1797c526d788a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a41f1ceed87262d3148b1797c526d788a">RefPtr</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& src) noexcept</td></tr>
<tr class="memdesc:a41f1ceed87262d3148b1797c526d788a"><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor. <a href="#a41f1ceed87262d3148b1797c526d788a">More...</a><br /></td></tr>
<tr class="separator:a41f1ceed87262d3148b1797c526d788a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a942f1d647bfccfda787fd70751ab1832"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:a942f1d647bfccfda787fd70751ab1832"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a942f1d647bfccfda787fd70751ab1832">RefPtr</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >& src) noexcept</td></tr>
<tr class="memdesc:a942f1d647bfccfda787fd70751ab1832"><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor (from different, but castable type). <a href="#a942f1d647bfccfda787fd70751ab1832">More...</a><br /></td></tr>
<tr class="separator:a942f1d647bfccfda787fd70751ab1832"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae60f24b9b0751786b78d83962f1312a2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#ae60f24b9b0751786b78d83962f1312a2">swap</a> (<a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& other) noexcept</td></tr>
<tr class="memdesc:ae60f24b9b0751786b78d83962f1312a2"><td class="mdescLeft"> </td><td class="mdescRight">Swap the contents of two RefPtr<>. <a href="#ae60f24b9b0751786b78d83962f1312a2">More...</a><br /></td></tr>
<tr class="separator:ae60f24b9b0751786b78d83962f1312a2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae7ce66d31ad318da6bc33e2b254f223e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#ae7ce66d31ad318da6bc33e2b254f223e">operator=</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& src) noexcept</td></tr>
<tr class="memdesc:ae7ce66d31ad318da6bc33e2b254f223e"><td class="mdescLeft"> </td><td class="mdescRight">Copy from another <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a>: <a href="#ae7ce66d31ad318da6bc33e2b254f223e">More...</a><br /></td></tr>
<tr class="separator:ae7ce66d31ad318da6bc33e2b254f223e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a10e520853f23ce4f0a72f48055719ed7"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:a10e520853f23ce4f0a72f48055719ed7"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a10e520853f23ce4f0a72f48055719ed7">operator=</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >& src) noexcept</td></tr>
<tr class="memdesc:a10e520853f23ce4f0a72f48055719ed7"><td class="mdescLeft"> </td><td class="mdescRight">Copy from different, but castable type). <a href="#a10e520853f23ce4f0a72f48055719ed7">More...</a><br /></td></tr>
<tr class="separator:a10e520853f23ce4f0a72f48055719ed7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab5759ac29a870acd77de7965dc89a430"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#ab5759ac29a870acd77de7965dc89a430">operator=</a> (<a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>&& src) noexcept</td></tr>
<tr class="memdesc:ab5759ac29a870acd77de7965dc89a430"><td class="mdescLeft"> </td><td class="mdescRight">Move assignment operator: <a href="#ab5759ac29a870acd77de7965dc89a430">More...</a><br /></td></tr>
<tr class="separator:ab5759ac29a870acd77de7965dc89a430"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3ea385c344eaf95f5a912bf08d1fc392"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:a3ea385c344eaf95f5a912bf08d1fc392"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>& </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a3ea385c344eaf95f5a912bf08d1fc392">operator=</a> (<a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >&& src) noexcept</td></tr>
<tr class="memdesc:a3ea385c344eaf95f5a912bf08d1fc392"><td class="mdescLeft"> </td><td class="mdescRight">Move assignment operator (from different, but castable type): <a href="#a3ea385c344eaf95f5a912bf08d1fc392">More...</a><br /></td></tr>
<tr class="separator:a3ea385c344eaf95f5a912bf08d1fc392"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6bc4844686505c04065879ede5c325f0"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a6bc4844686505c04065879ede5c325f0">operator==</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& src) const noexcept</td></tr>
<tr class="memdesc:a6bc4844686505c04065879ede5c325f0"><td class="mdescLeft"> </td><td class="mdescRight">Tests whether the RefPtr<> point to the same underlying instance. <a href="#a6bc4844686505c04065879ede5c325f0">More...</a><br /></td></tr>
<tr class="separator:a6bc4844686505c04065879ede5c325f0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6374fdf5a0c78115afa0567b7b2c1731"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a6374fdf5a0c78115afa0567b7b2c1731">operator!=</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject >& src) const noexcept</td></tr>
<tr class="memdesc:a6374fdf5a0c78115afa0567b7b2c1731"><td class="mdescLeft"> </td><td class="mdescRight">See <a class="el" href="classCairo_1_1RefPtr.html#a6bc4844686505c04065879ede5c325f0" title="Tests whether the RefPtr<> point to the same underlying instance. ">operator==()</a>. <a href="#a6374fdf5a0c78115afa0567b7b2c1731">More...</a><br /></td></tr>
<tr class="separator:a6374fdf5a0c78115afa0567b7b2c1731"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a22ed3eb889a613c973b547c64f3acad1"><td class="memItemLeft" align="right" valign="top">T_CppObject* </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a22ed3eb889a613c973b547c64f3acad1">operator-></a> () const noexcept</td></tr>
<tr class="memdesc:a22ed3eb889a613c973b547c64f3acad1"><td class="mdescLeft"> </td><td class="mdescRight">Dereferencing. <a href="#a22ed3eb889a613c973b547c64f3acad1">More...</a><br /></td></tr>
<tr class="separator:a22ed3eb889a613c973b547c64f3acad1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a18040dd7243379ed6689c57c093ad19c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a18040dd7243379ed6689c57c093ad19c">operator bool</a> () const noexcept</td></tr>
<tr class="memdesc:a18040dd7243379ed6689c57c093ad19c"><td class="mdescLeft"> </td><td class="mdescRight">Test whether the RefPtr<> points to any underlying instance. <a href="#a18040dd7243379ed6689c57c093ad19c">More...</a><br /></td></tr>
<tr class="separator:a18040dd7243379ed6689c57c093ad19c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a65770debda718f499a5139a5b68ac5a0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a65770debda718f499a5139a5b68ac5a0">clear</a> () noexcept</td></tr>
<tr class="memdesc:a65770debda718f499a5139a5b68ac5a0"><td class="mdescLeft"> </td><td class="mdescRight">Set underlying instance to 0, decrementing reference count of existing instance appropriately. <a href="#a65770debda718f499a5139a5b68ac5a0">More...</a><br /></td></tr>
<tr class="separator:a65770debda718f499a5139a5b68ac5a0"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:acc2da15e27dc2564743e8e3f874747a5"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:acc2da15e27dc2564743e8e3f874747a5"><td class="memTemplItemLeft" align="right" valign="top">static <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#acc2da15e27dc2564743e8e3f874747a5">cast_dynamic</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >& src) noexcept</td></tr>
<tr class="memdesc:acc2da15e27dc2564743e8e3f874747a5"><td class="mdescLeft"> </td><td class="mdescRight">Dynamic cast to derived class. <a href="#acc2da15e27dc2564743e8e3f874747a5">More...</a><br /></td></tr>
<tr class="separator:acc2da15e27dc2564743e8e3f874747a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9f9cbc71098a24c46b4cce772f0311e1"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:a9f9cbc71098a24c46b4cce772f0311e1"><td class="memTemplItemLeft" align="right" valign="top">static <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a9f9cbc71098a24c46b4cce772f0311e1">cast_static</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >& src) noexcept</td></tr>
<tr class="memdesc:a9f9cbc71098a24c46b4cce772f0311e1"><td class="mdescLeft"> </td><td class="mdescRight">Static cast to derived class. <a href="#a9f9cbc71098a24c46b4cce772f0311e1">More...</a><br /></td></tr>
<tr class="separator:a9f9cbc71098a24c46b4cce772f0311e1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a694be61d7f4838e75d31df09c49a63ea"><td class="memTemplParams" colspan="2">template<class T_CastFrom > </td></tr>
<tr class="memitem:a694be61d7f4838e75d31df09c49a63ea"><td class="memTemplItemLeft" align="right" valign="top">static <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CppObject > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classCairo_1_1RefPtr.html#a694be61d7f4838e75d31df09c49a63ea">cast_const</a> (const <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a>< T_CastFrom >& src) noexcept</td></tr>
<tr class="memdesc:a694be61d7f4838e75d31df09c49a63ea"><td class="mdescLeft"> </td><td class="mdescRight">Cast to non-const. <a href="#a694be61d7f4838e75d31df09c49a63ea">More...</a><br /></td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<class T_CppObject><br />
class Cairo::RefPtr< T_CppObject ></h3>
<p>RefPtr<> is a reference-counting shared smartpointer. </p>
<p>Reference counting means that a shared reference count is incremented each time a <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a> is copied, and decremented each time a <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a> is destroyed, for instance when it leaves its scope. When the reference count reaches zero, the contained object is deleted</p>
<p>cairomm uses <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a> so that you don't need to remember to delete the object explicitly, or know when a method expects you to delete the object that it returns, and to prevent any need to manually reference and unreference() cairo objects. </p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="user-font_8cc-example.html#_a1">user-font.cc</a>.</dd>
</dl></div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<p>Default constructor. </p>
<p>Afterwards it will be null and use of -> will cause a segmentation fault. </p>
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<p>Destructor - decrements reference count. </p>
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<p>For use only in the internal implementation of cairomm, gtkmm, etc. </p>
<p>This takes ownership of <em>pCppObject</em>, so it will be deleted when the last <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a> is deleted, for instance when it goes out of scope.</p>
<p>This assumes that <em>pCppObject</em> already has a starting reference for its underlying cairo object, so that destruction of <em></em> will cause a corresponding unreference of its underlying cairo object. For instance, a cairo_*_create() function usually provides a starting reference, but a cairo_*_get_*() function requires the caller to manually reference the returned object. In this case, you should call reference() on <em>pCppObject</em> before passing it to this constructor. </p>
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<p>For use only in the internal implementation of sharedptr. </p>
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<p>Move constructor. </p>
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<p>Move constructor (from different, but castable type). </p>
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<p>Copy constructor. </p>
<p>This increments the shared reference count. </p>
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<p>Copy constructor (from different, but castable type). </p>
<p>Increments the reference count. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">static <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a><T_CppObject> <a class="el" href="classCairo_1_1RefPtr.html">Cairo::RefPtr</a>< T_CppObject >::cast_const </td>
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<p>Cast to non-const. </p>
<p>The <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a> can't be cast with the usual notation so instead you can use </p><div class="fragment"><div class="line">ptr_unconst = <a class="code" href="classCairo_1_1RefPtr.html#a694be61d7f4838e75d31df09c49a63ea">RefPtr<UnConstType>::cast_const</a>(ptr_const);</div>
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<td class="memname">static <a class="el" href="classCairo_1_1RefPtr.html">RefPtr</a><T_CppObject> <a class="el" href="classCairo_1_1RefPtr.html">Cairo::RefPtr</a>< T_CppObject >::cast_dynamic </td>
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<p>Dynamic cast to derived class. </p>
<p>The <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a> can't be cast with the usual notation so instead you can use </p><div class="fragment"><div class="line">ptr_derived = <a class="code" href="classCairo_1_1RefPtr.html#acc2da15e27dc2564743e8e3f874747a5">RefPtr<Derived>::cast_dynamic</a>(ptr_base);</div>
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<p>Static cast to derived class. </p>
<p>Like the dynamic cast; the notation is </p><div class="fragment"><div class="line">ptr_derived = <a class="code" href="classCairo_1_1RefPtr.html#a9f9cbc71098a24c46b4cce772f0311e1">RefPtr<Derived>::cast_static</a>(ptr_base);</div>
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<p>Set underlying instance to 0, decrementing reference count of existing instance appropriately. </p>
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<p>Test whether the RefPtr<> points to any underlying instance. </p>
<p>Mimics usage of ordinary pointers: </p><div class="fragment"><div class="line"><span class="keywordflow">if</span> (ptr)</div>
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<p>See <a class="el" href="classCairo_1_1RefPtr.html#a6bc4844686505c04065879ede5c325f0" title="Tests whether the RefPtr<> point to the same underlying instance. ">operator==()</a>. </p>
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<p>Dereferencing. </p>
<p>Use the methods of the underlying instance like so: <code>refptr->memberfun()</code>. </p>
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<p>Copy from another <a class="el" href="classCairo_1_1RefPtr.html" title="RefPtr<> is a reference-counting shared smartpointer. ">RefPtr</a>: </p>
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<p>Copy from different, but castable type). </p>
<p>Increments the reference count. </p>
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<p>Move assignment operator: </p>
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<p>Move assignment operator (from different, but castable type): </p>
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template <class T_CppObject> </div>
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<td class="memname">bool <a class="el" href="classCairo_1_1RefPtr.html">Cairo::RefPtr</a>< T_CppObject >::operator== </td>
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<p>Tests whether the RefPtr<> point to the same underlying instance. </p>
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<td class="memname">void <a class="el" href="classCairo_1_1RefPtr.html">Cairo::RefPtr</a>< T_CppObject >::swap </td>
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<p>Swap the contents of two RefPtr<>. </p>
<p>This method swaps the internal pointers to T_CppObject. This can be done safely without involving a reference/unreference cycle and is therefore highly efficient. </p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>cairomm/refptr.h</li>
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