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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: smartptr.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>smartptr.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_SMARTPTR_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_SMARTPTR_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00004"></a>00004 <span class="preprocessor">#include "config.h"</span><a name="l00005"></a>00005 <span class="preprocessor">#include <algorithm></span><a name="l00006"></a>00006 <a name="l00007"></a>00007 NAMESPACE_BEGIN(CryptoPP)<a name="l00008"></a>00008 <a name="l00009"></a><a class="code" href="classsimple__ptr.html">00009</a> template <class T> class <a class="code" href="classsimple__ptr.html">simple_ptr</a><a name="l00010"></a>00010 {<a name="l00011"></a>00011 <span class="keyword">public</span>:<a name="l00012"></a><a class="code" href="classsimple__ptr.html#9e8a2d379248fd1d76819775dfa496af">00012</a> simple_ptr() : m_p(NULL) {}<a name="l00013"></a><a class="code" href="classsimple__ptr.html#2f64c0e14b1c7a11dd7c6649d95c8cb8">00013</a> ~simple_ptr() {<span class="keyword">delete</span> m_p;}<a name="l00014"></a><a class="code" href="classsimple__ptr.html#7c4a48ed4ea8b823d14de63fb6d56993">00014</a> T *m_p;<a name="l00015"></a>00015 };<a name="l00016"></a>00016 <a name="l00017"></a><a class="code" href="classmember__ptr.html">00017</a> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classmember__ptr.html">member_ptr</a><a name="l00018"></a>00018 {<a name="l00019"></a>00019 <span class="keyword">public</span>:<a name="l00020"></a><a class="code" href="classmember__ptr.html#07de11b50740176cd87957cb3ed3d3b8">00020</a> <span class="keyword">explicit</span> <a class="code" href="classmember__ptr.html#07de11b50740176cd87957cb3ed3d3b8">member_ptr</a>(T *p = NULL) : <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>(p) {}<a name="l00021"></a>00021 <a name="l00022"></a>00022 <a class="code" href="classmember__ptr.html#d8fef226532200a97e1691bfc6ac2b63">~member_ptr</a>();<a name="l00023"></a>00023 <a name="l00024"></a><a class="code" href="classmember__ptr.html#cb313509122835253aa304f2dff87133">00024</a> <span class="keyword">const</span> T& <a class="code" href="classmember__ptr.html#cb313509122835253aa304f2dff87133">operator*</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> *<a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; }<a name="l00025"></a><a class="code" href="classmember__ptr.html#9b60ca3ecf7ea2e8dab6d8eccdc27d19">00025</a> T& <a class="code" href="classmember__ptr.html#cb313509122835253aa304f2dff87133">operator*</a>() { <span class="keywordflow">return</span> *<a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; }<a name="l00026"></a>00026 <a name="l00027"></a><a class="code" href="classmember__ptr.html#f98d04ac57ff3a330394f4327aa805b1">00027</a> <span class="keyword">const</span> T* <a class="code" href="classmember__ptr.html#f98d04ac57ff3a330394f4327aa805b1">operator-></a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; }<a name="l00028"></a><a class="code" href="classmember__ptr.html#f129ccfbdb03a896c933bf5cd00c31b0">00028</a> T* <a class="code" href="classmember__ptr.html#f98d04ac57ff3a330394f4327aa805b1">operator-></a>() { <span class="keywordflow">return</span> <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; }<a name="l00029"></a>00029 <a name="l00030"></a><a class="code" href="classmember__ptr.html#2d10dec2a51691b589d56b71ec78e59a">00030</a> <span class="keyword">const</span> T* <span class="keyword">get</span>() <span class="keyword">const</span> { <span class="keywordflow">return</span> <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; }<a name="l00031"></a><a class="code" href="classmember__ptr.html#e2feaf010df5dbe2ac54dc02ccb976ed">00031</a> T* <span class="keyword">get</span>() { <span class="keywordflow">return</span> <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; }<a name="l00032"></a>00032 <a name="l00033"></a><a class="code" href="classmember__ptr.html#3e2476e6f94e4f472b1ae3cf26d94a16">00033</a> T* <a class="code" href="classmember__ptr.html#3e2476e6f94e4f472b1ae3cf26d94a16">release</a>()<a name="l00034"></a>00034 {<a name="l00035"></a>00035 T *old_p = <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>;<a name="l00036"></a>00036 <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a> = 0;<a name="l00037"></a>00037 <span class="keywordflow">return</span> old_p;<a name="l00038"></a>00038 } <a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="keywordtype">void</span> <a class="code" href="classmember__ptr.html#0191c833924d93e9093b07bab31010fe">reset</a>(T *p = 0);<a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="keyword">protected</span>:<a name="l00043"></a>00043 <a class="code" href="classmember__ptr.html#07de11b50740176cd87957cb3ed3d3b8">member_ptr</a>(<span class="keyword">const</span> <a class="code" href="classmember__ptr.html">member_ptr<T></a>& rhs); <span class="comment">// copy not allowed</span><a name="l00044"></a>00044 <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="classmember__ptr.html">member_ptr<T></a>& rhs); <span class="comment">// assignment not allowed</span><a name="l00045"></a>00045 <a name="l00046"></a><a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">00046</a> T *<a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>;<a name="l00047"></a>00047 };<a name="l00048"></a>00048 <a name="l00049"></a><a class="code" href="classmember__ptr.html#d8fef226532200a97e1691bfc6ac2b63">00049</a> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classmember__ptr.html#d8fef226532200a97e1691bfc6ac2b63">member_ptr<T>::~member_ptr</a>() {<span class="keyword">delete</span> <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>;}<a name="l00050"></a><a class="code" href="classmember__ptr.html#0191c833924d93e9093b07bab31010fe">00050</a> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keywordtype">void</span> <a class="code" href="classmember__ptr.html#0191c833924d93e9093b07bab31010fe">member_ptr<T>::reset</a>(T *p) {<span class="keyword">delete</span> <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>; <a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a> = p;}<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="comment">// ********************************************************</span><a name="l00053"></a>00053 <a name="l00054"></a><a class="code" href="classvalue__ptr.html">00054</a> <span class="keyword">template</span><<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classvalue__ptr.html">value_ptr</a> : <span class="keyword">public</span> <a class="code" href="classmember__ptr.html">member_ptr</a><T><a name="l00055"></a>00055 {<a name="l00056"></a>00056 <span class="keyword">public</span>:<a name="l00057"></a><a class="code" href="classvalue__ptr.html#d01274b9aa3cbdcd49346cd09abfcba1">00057</a> <a class="code" href="classvalue__ptr.html">value_ptr</a>(<span class="keyword">const</span> T &obj) : <a class="code" href="classmember__ptr.html">member_ptr</a><T>(new T(obj)) {}<a name="l00058"></a><a class="code" href="classvalue__ptr.html#486a8583cd4c12ae4a73600d99c93b46">00058</a> <a class="code" href="classvalue__ptr.html">value_ptr</a>(T *p = NULL) : <a class="code" href="classmember__ptr.html">member_ptr</a><T>(p) {}<a name="l00059"></a><a class="code" href="classvalue__ptr.html#b2613c09bc965c2d2303dea0c8f345df">00059</a> <a class="code" href="classvalue__ptr.html">value_ptr</a>(<span class="keyword">const</span> <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& rhs)<a name="l00060"></a>00060 : <a class="code" href="classmember__ptr.html">member_ptr</a><T>(rhs.<a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a> ? new T(*rhs.<a class="code" href="classmember__ptr.html#82d41ef68f80d1add88d40ed274e2357">m_p</a>) : NULL) {}<a name="l00061"></a>00061 <a name="l00062"></a>00062 <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& operator=(<span class="keyword">const</span> <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& rhs);<a name="l00063"></a><a class="code" href="classvalue__ptr.html#31aeb58ab1ed1cfee3671313f6891f91">00063</a> <span class="keywordtype">bool</span> <a class="code" href="gf2n_8h.html#22c25c181c409600aa2e4bf1067ac47a">operator==</a>(<span class="keyword">const</span> <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& rhs)⌨️ 快捷键说明
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