classxapian_1_1internal_1_1refcntptr.tex

xapian 是一个“Xapian 是一个开源概率论信息检索库

\hypertarget{classXapian_1_1Internal_1_1RefCntPtr}{
\section{Xapian::Internal::Ref\-Cnt\-Ptr$<$ T $>$ Class Template Reference}
\label{classXapian_1_1Internal_1_1RefCntPtr}\index{Xapian::Internal::RefCntPtr@{Xapian::Internal::RefCntPtr}}
}
A reference-counted pointer.  


{\tt \#include $<$base.h$>$}

Inheritance diagram for Xapian::Internal::Ref\-Cnt\-Ptr$<$ T $>$:\begin{figure}[H]
\begin{center}
\leavevmode
\includegraphics[width=119pt]{classXapian_1_1Internal_1_1RefCntPtr__inherit__graph}
\end{center}
\end{figure}
Collaboration diagram for Xapian::Internal::Ref\-Cnt\-Ptr$<$ T $>$:\begin{figure}[H]
\begin{center}
\leavevmode
\includegraphics[width=103pt]{classXapian_1_1Internal_1_1RefCntPtr__coll__graph}
\end{center}
\end{figure}
\subsection*{Public Member Functions}
\begin{CompactItemize}
\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_2d0feb855d92fd8e9067a9bcd018d663}{
T $\ast$ {\bf operator $\rightarrow$ } () const }
\label{classXapian_1_1Internal_1_1RefCntPtr_2d0feb855d92fd8e9067a9bcd018d663}

\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_759346003f0cde6364c50be6b3a7af75}{
T \& {\bf operator $\ast$} () const }
\label{classXapian_1_1Internal_1_1RefCntPtr_759346003f0cde6364c50be6b3a7af75}

\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_8a8ff6af4a1deb0cf91e203e9bcd8c9f}{
T $\ast$ {\bf get} () const }
\label{classXapian_1_1Internal_1_1RefCntPtr_8a8ff6af4a1deb0cf91e203e9bcd8c9f}

\item 
\hyperlink{classXapian_1_1Internal_1_1RefCntPtr_16ba6cf200890b2f1479473cee3d5383}{Ref\-Cnt\-Ptr} (T $\ast$dest\_\-)
\begin{CompactList}\small\item\em Make a \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr} for an object which may already have reference counted pointers. \item\end{CompactList}\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_7f98177fbab0d45416861921dfb588c9}{
{\bf Ref\-Cnt\-Ptr} (const \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr} \&other)}
\label{classXapian_1_1Internal_1_1RefCntPtr_7f98177fbab0d45416861921dfb588c9}

\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_86fa9669fef5adf3478f274db396c1e5}{
void {\bf operator=} (const \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr} \&other)}
\label{classXapian_1_1Internal_1_1RefCntPtr_86fa9669fef5adf3478f274db396c1e5}

\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_4406c105a937f4098446cbf0acb3d60f}{
void {\bf operator=} (T $\ast$dest\_\-)}
\label{classXapian_1_1Internal_1_1RefCntPtr_4406c105a937f4098446cbf0acb3d60f}

\item 
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_599351dc79ac40513e6c624f43923dea}{
template$<$class U$>$ {\bf Ref\-Cnt\-Ptr} (const \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr}$<$ U $>$ \&other)}
\label{classXapian_1_1Internal_1_1RefCntPtr_599351dc79ac40513e6c624f43923dea}

\end{CompactItemize}


\subsection{Detailed Description}
\subsubsection*{template$<$class T$>$ class Xapian::Internal::Ref\-Cnt\-Ptr$<$ T $>$}

A reference-counted pointer. 

Can be used with any class derived from \hyperlink{classXapian_1_1Internal_1_1RefCntBase}{Ref\-Cnt\-Base}, as long as it is allocated on the heap by new (not new\mbox{[}\mbox{]}!). 



\subsection{Constructor \& Destructor Documentation}
\hypertarget{classXapian_1_1Internal_1_1RefCntPtr_16ba6cf200890b2f1479473cee3d5383}{
\index{Xapian::Internal::RefCntPtr@{Xapian::Internal::Ref\-Cnt\-Ptr}!RefCntPtr@{RefCntPtr}}
\index{RefCntPtr@{RefCntPtr}!Xapian::Internal::RefCntPtr@{Xapian::Internal::Ref\-Cnt\-Ptr}}
\subsubsection[RefCntPtr]{\setlength{\rightskip}{0pt plus 5cm}template$<$class T$>$ \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Xapian::Internal::Ref\-Cnt\-Ptr}$<$ T $>$::\hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr} (T $\ast$ {\em dest\_\-})\hspace{0.3cm}{\tt  \mbox{[}inline\mbox{]}}}}
\label{classXapian_1_1Internal_1_1RefCntPtr_16ba6cf200890b2f1479473cee3d5383}


Make a \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr} for an object which may already have reference counted pointers. 

You usually pass in a newly created object, or an object may pass in \char`\"{}this\char`\"{} to get a \hyperlink{classXapian_1_1Internal_1_1RefCntPtr}{Ref\-Cnt\-Ptr} to itself to pass to other classes. (e.g. a database might pass a newly created postlist a reference counted pointer to itself.) 

The documentation for this class was generated from the following file:\begin{CompactItemize}
\item 
include/xapian/base.h\end{CompactItemize}