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<h1>NLMISC::CRefPtr< T > Class Template Reference</h1><code>#include <<a class="el" href="a06402.html">smart_ptr.h</a>></code>
<p>
<hr><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class T><br>
class NLMISC::CRefPtr< T ></h3>
<a class="el" href="a03321.html">CRefPtr</a>: an handle on a ptr. T Must derive from <a class="el" href="a02209.html">CRefCount</a>. If you use <a class="el" href="a03321.html">CRefPtr</a>, you can kill the object simply by calling delete (T*)RefPtr, or the <a class="el" href="a03321.html#NLMISC_1_1CRefPtra3">kill()</a> method. All other <a class="el" href="a03321.html">CRefPtr</a> which point to it can know if it has been deleted. (but you must be sure that this ptr is not handle by a SmartPtr, of course...)<p>
SmartPtr are compatible with RefPtr. A ptr may be link to a <a class="el" href="a03321.html">CRefPtr</a> and a <a class="el" href="a03408.html">CSmartPtr</a>. As example, when the <a class="el" href="a03408.html">CSmartPtr</a> will destroy him, <a class="el" href="a03321.html">CRefPtr</a> will be informed... Sample: <pre class="fragment"><div> <span class="keywordtype">void</span> foo()
{
A *p;
CSmartPtr<A> sp;
CRefPtr<A> rp;
p= <span class="keyword">new</span> A;
sp= p; <span class="comment">// OK. p is now owned by sp and will be deleted by sp.</span>
rp= p; <span class="comment">// OK. rp handle p.</span>
sp= NULL; <span class="comment">// Destruction. p deleted. rp automatically informed.</span>
<span class="keywordflow">if</span>(rp==NULL)
thisIsGood(); <span class="comment">// rp==NULL.</span>
}
</div></pre><p>
<b>PERFORMANCE</b> <b>WARNING!</b> <a class="el" href="a03321.html#NLMISC_1_1CRefPtra8">operator=()</a> are about 10 times slower than normal pointers. So use them wisely. For local use, prefer cast the refptr to a normal Ptr. Also, an object used with a <a class="el" href="a03321.html">CRefPtr</a> will allocate a small PtrInfo (one only per object, not per ptr). <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="a03408.html">CSmartPtr</a> </dd></dl>
<p>
<p>
Definition at line <a class="el" href="a06402.html#l00256">256</a> of file <a class="el" href="a06402.html">smart_ptr.h</a>.<table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra0">CRefPtr</a> (const <a class="el" href="a03321.html">CRefPtr</a> &copy)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor. <a href="#NLMISC_1_1CRefPtra0"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra1">CRefPtr</a> (T *<a class="el" href="a04223.html#a576">v</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Attach a ptr to a RefPtr. <a href="#NLMISC_1_1CRefPtra1"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra2">CRefPtr</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Init a NULL Ptr. <a href="#NLMISC_1_1CRefPtra2"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra3">kill</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>T & </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra4">operator *</a> (void) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Indirection operator. Doesn't test if ptr has been deleted somewhere, and doesn't check NULL. <a href="#NLMISC_1_1CRefPtra4"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra5">operator T *</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Cast operator. Check if the object has been deleted somewhere, and return NULL if this is the case. <a href="#NLMISC_1_1CRefPtra5"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>T * </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra6">operator-></a> (void) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Selection operator. Doesn't test if ptr has been deleted somewhere, and doesn't check NULL. <a href="#NLMISC_1_1CRefPtra6"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a03321.html">CRefPtr</a> & </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra7">operator=</a> (const <a class="el" href="a03321.html">CRefPtr</a> &copy)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">operator=. Giving a NULL pointer is a valid operation. <a href="#NLMISC_1_1CRefPtra7"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a03321.html">CRefPtr</a> & </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra8">operator=</a> (T *<a class="el" href="a04223.html#a576">v</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">operator=. Giving a NULL pointer is a valid operation. <a href="#NLMISC_1_1CRefPtra8"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtra9">~CRefPtr</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Release the RefPtr. <a href="#NLMISC_1_1CRefPtra9"></a><br><br></td></tr>
<tr><td colspan=2><br><h2>Private Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtrd0">unRef</a> () const </td></tr>
<tr><td colspan=2><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a03320.html">CRefCount::CPtrInfo</a> * </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>T * </td><td class="memItemRight" valign=bottom><a class="el" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a></td></tr>
</table>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="NLMISC_1_1CRefPtra2" doxytag="NLMISC::CRefPtr::CRefPtr" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" colspan="4">
template<class T> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::<a class="el" href="a03321.html">CRefPtr</a> </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Init a NULL Ptr.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00153">153</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00097">REF_TRACE</a>.
<p>
<div class="fragment"><pre>00154 {
00155 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>= &CRefCount::NullPtrInfo;
00156 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= NULL;
00157
00158 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"Smart()"</span>);
00159 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NLMISC_1_1CRefPtra1" doxytag="NLMISC::CRefPtr::CRefPtr" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" colspan="4">
template<class T> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::<a class="el" href="a03321.html">CRefPtr</a> </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">T * </td>
<td class="mdname1" valign="top" nowrap> <em>v</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Attach a ptr to a RefPtr.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00160">160</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00097">REF_TRACE</a>, <a class="el" href="a06402.html#l00056">NLMISC::CRefCount::CPtrInfo::RefCount</a>, and <a class="el" href="a05646.html#l00237">v</a>.
<p>
<div class="fragment"><pre>00161 {
00162 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= <a class="code" href="a04223.html#a576">v</a>;
00163 <span class="keywordflow">if</span>(<a class="code" href="a04223.html#a576">v</a>)
00164 {
00165 <span class="comment">// If no CRefPtr handles v, create a pinfo ref...</span>
00166 <span class="keywordflow">if</span>(<a class="code" href="a04223.html#a576">v</a>->pinfo->IsNullPtrInfo)
00167 <a class="code" href="a04223.html#a576">v</a>->pinfo=<span class="keyword">new</span> CRefCount::CPtrInfo(v);
00168 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>=<a class="code" href="a04223.html#a576">v</a>->pinfo;
00169 <span class="comment">// v is now used by this.</span>
00170 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->RefCount++;
00171 }
00172 <span class="keywordflow">else</span>
00173 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>= &CRefCount::NullPtrInfo;
00174
00175 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"Smart(T*)"</span>);
00176 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NLMISC_1_1CRefPtra0" doxytag="NLMISC::CRefPtr::CRefPtr" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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template<class T> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::<a class="el" href="a03321.html">CRefPtr</a> </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="a03321.html">CRefPtr</a>< T > & </td>
<td class="mdname1" valign="top" nowrap> <em>copy</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
Copy constructor.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00177">177</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00259">NLMISC::CRefPtr< T >::pinfo</a>, <a class="el" href="a06402.html#l00055">NLMISC::CRefCount::CPtrInfo::Ptr</a>, <a class="el" href="a06402.html#l00097">REF_TRACE</a>, and <a class="el" href="a06402.html#l00056">NLMISC::CRefCount::CPtrInfo::RefCount</a>.
<p>
<div class="fragment"><pre>00178 {
00179 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>=copy.pinfo;
00180 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->RefCount++;
00181 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= (T*)<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->Ptr;
00182
00183 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"SmartCopy()"</span>);
00184 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NLMISC_1_1CRefPtra9" doxytag="NLMISC::CRefPtr::~CRefPtr" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::~<a class="el" href="a03321.html">CRefPtr</a> </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
Release the RefPtr.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00185">185</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00097">REF_TRACE</a>, and <a class="el" href="a06403.html#l00121">NLMISC::CRefPtr< T >::unRef()</a>.
<p>
<div class="fragment"><pre>00186 {
00187 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"~Smart()"</span>);
00188
00189 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrd0">unRef</a>();
00190 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>= &CRefCount::NullPtrInfo;
00191 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= NULL;
00192 }
</pre></div> </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="NLMISC_1_1CRefPtra3" doxytag="NLMISC::CRefPtr::kill" ></a><p>
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<td class="md" nowrap valign="top"> void <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::kill </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
kill/delete the object pointed by the pointer, and inform the other RefPtr of this. "rp.kill()" and "delete (T*)rp" do the same thing, except that rp NULLity is updated with <a class="el" href="a03321.html#NLMISC_1_1CRefPtra3">kill()</a>. RefPtr which point to the same object could know if the object is valid, by just testing it ( by an implicit call to the cast operator to T*). But any calls to <a class="el" href="a03321.html#NLMISC_1_1CRefPtra6">operator->()</a> or <a class="el" href="a03321.html#NLMISC_1_1CRefPtra4">operator*()</a> will have unpredictible effects (may crash... :) ).
<p>
Definition at line <a class="el" href="a06403.html#l00241">241</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00055">NLMISC::CRefCount::CPtrInfo::Ptr</a>, <a class="el" href="a06402.html#l00097">REF_TRACE</a>, and <a class="el" href="a06403.html#l00121">NLMISC::CRefPtr< T >::unRef()</a>.
<p>
<div class="fragment"><pre>00242 {
00243 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"SmartKill"</span>);
00244
00245 T *ptr= (T*)<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->Ptr;
00246
00247 <span class="comment">// First, release the refptr.</span>
00248 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrd0">unRef</a>();
00249 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>= &CRefCount::NullPtrInfo;
00250 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= NULL;
00251
00252 <span class="comment">// Then delete the pointer.</span>
00253 <span class="keywordflow">if</span>(ptr)
00254 <span class="keyword">delete</span> ptr;
00255 }
</pre></div> </td>
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<a class="anchor" name="NLMISC_1_1CRefPtra4" doxytag="NLMISC::CRefPtr::operator *" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> T & <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::operator * </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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<p>
Indirection operator. Doesn't test if ptr has been deleted somewhere, and doesn't check NULL.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00272">272</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00097">REF_TRACE</a>.
<p>
<div class="fragment"><pre>00273 {
00274 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"Smart *()"</span>);
00275 <span class="keywordflow">return</span> *<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>;
00276 }
</pre></div> </td>
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<a class="anchor" name="NLMISC_1_1CRefPtra5" doxytag="NLMISC::CRefPtr::operator T *" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::operator T * </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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</td>
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<p>
Cast operator. Check if the object has been deleted somewhere, and return NULL if this is the case.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00260">260</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00055">NLMISC::CRefCount::CPtrInfo::Ptr</a>, and <a class="el" href="a06402.html#l00097">REF_TRACE</a>.
<p>
<div class="fragment"><pre>00261 {
00262 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"SmartCast T*()"</span>);
00263
00264 <span class="comment">// Refresh Ptr.</span>
00265 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= (T*)<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->Ptr;
00266 <span class="keywordflow">return</span> <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>;
00267 }
</pre></div> </td>
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<a class="anchor" name="NLMISC_1_1CRefPtra6" doxytag="NLMISC::CRefPtr::operator->" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> T * <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::operator-> </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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<td>
<p>
Selection operator. Doesn't test if ptr has been deleted somewhere, and doesn't check NULL.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00277">277</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00097">REF_TRACE</a>.
<p>
<div class="fragment"><pre>00278 {
00279 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"Smart ->()"</span>);
00280 <span class="keywordflow">return</span> <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>;
00281 }
</pre></div> </td>
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<a class="anchor" name="NLMISC_1_1CRefPtra7" doxytag="NLMISC::CRefPtr::operator=" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">CRefPtr</a>< T > & <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::operator= </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="a03321.html">CRefPtr</a>< T > & </td>
<td class="mdname1" valign="top" nowrap> <em>copy</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
operator=. Giving a NULL pointer is a valid operation.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00223">223</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00259">NLMISC::CRefPtr< T >::pinfo</a>, <a class="el" href="a06402.html#l00055">NLMISC::CRefCount::CPtrInfo::Ptr</a>, <a class="el" href="a06402.html#l00097">REF_TRACE</a>, <a class="el" href="a06402.html#l00056">NLMISC::CRefCount::CPtrInfo::RefCount</a>, and <a class="el" href="a06403.html#l00121">NLMISC::CRefPtr< T >::unRef()</a>.
<p>
<div class="fragment"><pre>00224 {
00225 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"ope=(Smart)Start"</span>);
00226
00227 <span class="comment">// The auto equality test is implicitly done by upcounting first "copy", then downcounting "this".</span>
00228 copy.pinfo->RefCount++;
00229 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrd0">unRef</a>();
00230 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>=copy.pinfo;
00231 <span class="comment">// Must Refresh the ptr.</span>
00232 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= (T*)<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->Ptr;
00233
00234 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"ope=(Smart)End"</span>);
00235 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00236 }
</pre></div> </td>
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<a class="anchor" name="NLMISC_1_1CRefPtra8" doxytag="NLMISC::CRefPtr::operator=" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a03321.html">CRefPtr</a>< T > & <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::operator= </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">T * </td>
<td class="mdname1" valign="top" nowrap> <em>v</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
operator=. Giving a NULL pointer is a valid operation.
<p>
<p>
Definition at line <a class="el" href="a06403.html#l00196">196</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00097">REF_TRACE</a>, <a class="el" href="a06403.html#l00121">NLMISC::CRefPtr< T >::unRef()</a>, and <a class="el" href="a05646.html#l00237">v</a>.
<p>
<div class="fragment"><pre>00197 {
00198 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"ope=(T*)Start"</span>);
00199
00200
00201 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a>= <a class="code" href="a04223.html#a576">v</a>;
00202 <span class="keywordflow">if</span>(<a class="code" href="a04223.html#a576">v</a>)
00203 {
00204 <span class="comment">// If no CRefPtr handles v, create a pinfo ref...</span>
00205 <span class="keywordflow">if</span>(<a class="code" href="a04223.html#a576">v</a>->pinfo->IsNullPtrInfo)
00206 <a class="code" href="a04223.html#a576">v</a>->pinfo=<span class="keyword">new</span> CRefCount::CPtrInfo(v);
00207 <span class="comment">// The auto equality test is implicitly done by upcounting first "v", then downcounting "this".</span>
00208 <a class="code" href="a04223.html#a576">v</a>->pinfo->RefCount++;
00209 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrd0">unRef</a>();
00210 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>= <a class="code" href="a04223.html#a576">v</a>->pinfo;
00211 }
00212 <span class="keywordflow">else</span>
00213 {
00214 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrd0">unRef</a>();
00215 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>= &CRefCount::NullPtrInfo;
00216 }
00217
00218
00219 <a class="code" href="a04979.html#a1">REF_TRACE</a>(<span class="stringliteral">"ope=(T*)End"</span>);
00220
00221 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00222 }
</pre></div> </td>
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<a class="anchor" name="NLMISC_1_1CRefPtrd0" doxytag="NLMISC::CRefPtr::unRef" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> void <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::unRef </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline, private]</code></td>
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<p>
<p>
Definition at line <a class="el" href="a06403.html#l00121">121</a> of file <a class="el" href="a06403.html">smart_ptr_inline.h</a>.
<p>
References <a class="el" href="a06402.html#l00058">NLMISC::CRefCount::CPtrInfo::IsNullPtrInfo</a>, <a class="el" href="a06402.html#l00055">NLMISC::CRefCount::CPtrInfo::Ptr</a>, <a class="el" href="a06402.html#l00056">NLMISC::CRefCount::CPtrInfo::RefCount</a>, and <a class="el" href="a06403.html#l00039">SMART_INLINE</a>.
<p>
Referenced by <a class="el" href="a06403.html#l00241">NLMISC::CRefPtr< T >::kill()</a>, <a class="el" href="a06403.html#l00196">NLMISC::CRefPtr< T >::operator=()</a>, and <a class="el" href="a06403.html#l00185">NLMISC::CRefPtr< T >::~CRefPtr()</a>.
<p>
<div class="fragment"><pre>00122 {
00123 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->RefCount--;
00124 <span class="keywordflow">if</span>(<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->RefCount==0)
00125 {
00126 <span class="comment">// In CRefPtr, Never delete the object.</span>
00127
00128 <span class="comment">// We may be in the case that this==NullPtrInfo, and our NullPtrInfo has done a total round. Test it.</span>
00129 <span class="keywordflow">if</span>(<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->IsNullPtrInfo)
00130 {
00131 <span class="comment">// This should not happens, but I'm not sure :) ...</span>
00132 <span class="comment">// Reset the NullPtrInfo to a middle round.</span>
00133 <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->RefCount= 0x7FFFFFFF;
00134 }
00135 <span class="keywordflow">else</span>
00136 {
00137 <span class="comment">// If the CRefPtr still point to a valid object.</span>
00138 <span class="keywordflow">if</span>(<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->Ptr)
00139 {
00140 <span class="comment">// Inform the Object that no more CRefPtr points on it.</span>
00141 ((T*)(<a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>->Ptr))->pinfo= &CRefCount::NullPtrInfo;
00142 }
00143 <span class="comment">// Then delete the pinfo.</span>
00144 <span class="keyword">delete</span> <a class="code" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a>;
00145 }
00146
00147 }
00148 }
</pre></div> </td>
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<hr><h2>Field Documentation</h2>
<a class="anchor" name="NLMISC_1_1CRefPtrr0" doxytag="NLMISC::CRefPtr::pinfo" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a03320.html">CRefCount::CPtrInfo</a>* <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::<a class="el" href="a03321.html#NLMISC_1_1CRefPtrr0">pinfo</a><code> [private]</code>
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</td>
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<p>
<p>
Definition at line <a class="el" href="a06402.html#l00259">259</a> of file <a class="el" href="a06402.html">smart_ptr.h</a>.
<p>
Referenced by <a class="el" href="a06403.html#l00177">NLMISC::CRefPtr< T >::CRefPtr()</a>, and <a class="el" href="a06403.html#l00223">NLMISC::CRefPtr< T >::operator=()</a>. </td>
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<a class="anchor" name="NLMISC_1_1CRefPtrr1" doxytag="NLMISC::CRefPtr::Ptr" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> T* <a class="el" href="a03321.html">NLMISC::CRefPtr</a>< T >::<a class="el" href="a03321.html#NLMISC_1_1CRefPtrr1">Ptr</a><code> [mutable, private]</code>
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</td>
<td>
<p>
<p>
Definition at line <a class="el" href="a06402.html#l00260">260</a> of file <a class="el" href="a06402.html">smart_ptr.h</a>. </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="a06402.html">smart_ptr.h</a><li><a class="el" href="a06403.html">smart_ptr_inline.h</a></ul>
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