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 <span id="projectnumber">7.0</span>
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<a href="smartptr_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// smartptr.h - originally written and placed in the public domain by Wei Dai</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"></span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/// \file smartptr.h</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/// \brief Classes for automatic resource management</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#ifndef CRYPTOPP_SMARTPTR_H</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#define CRYPTOPP_SMARTPTR_H</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "<a class="code" href="stdcpp_8h.html">stdcpp.h</a>"</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">/// \brief Manages resources for a single object</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span><span class="comment">/// \tparam T class or type</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"></span><span class="comment">/// \details \p simple_ptr is used frequently in the library to manage resources and</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"></span><span class="comment">/// ensure cleanup under the RAII pattern (Resource Acquisition Is Initialization).</span></div><div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="classsimple__ptr.html"> 18</a></span> <span class="comment"></span>template <class T> class <a class="code" href="classsimple__ptr.html">simple_ptr</a></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="classsimple__ptr.html">simple_ptr</a>(T *p = NULLPTR) : m_p(p) {}</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  ~<a class="code" href="classsimple__ptr.html">simple_ptr</a>()</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">delete</span> m_p;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  m_p = NULLPTR;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  }</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  T *m_p;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> };</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">/// \brief Pointer that overloads operator -></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">/// \tparam T class or type</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">/// \details member_ptr is used frequently in the library to avoid the issues related to</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">/// std::auto_ptr in C++11 (deprecated) and std::unique_ptr in C++03 (non-existent).</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/// \bug <a href="http://github.com/weidai11/cryptopp/issues/48">Issue 48: "Use of auto_ptr causes dirty compile under C++11"</a></span></div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classmember__ptr.html"> 36</a></span> <span class="comment"></span><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></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">explicit</span> <a class="code" href="classmember__ptr.html">member_ptr</a>(T *p = NULLPTR) : m_p(p) {}</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  ~<a class="code" href="classmember__ptr.html">member_ptr</a>();</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">const</span> T& operator*()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> *m_p; }</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  T& operator*() { <span class="keywordflow">return</span> *m_p; }</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">const</span> T* operator->()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_p; }</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  T* operator->() { <span class="keywordflow">return</span> m_p; }</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> T* get()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_p; }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  T* get() { <span class="keywordflow">return</span> m_p; }</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  T* release()</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  T *old_p = m_p;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  m_p = NULLPTR;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> old_p;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  }</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span> reset(T *p = 0);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="classmember__ptr.html">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></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <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></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  T *m_p;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> };</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classmember__ptr.html">member_ptr<T>::~member_ptr</a>() {<span class="keyword">delete</span> m_p;}</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keywordtype">void</span> <a class="code" href="classmember__ptr.html">member_ptr<T>::reset</a>(T *p) {<span class="keyword">delete</span> m_p; m_p = p;}</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// ********************************************************</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"></span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment">/// \brief Value pointer</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">/// \tparam T class or type</span></div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classvalue__ptr.html"> 75</a></span> <span class="comment"></span><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></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <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<T></a>(<span class="keyword">new</span> T(obj)) {}</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="classvalue__ptr.html">value_ptr</a>(T *p = NULLPTR) : <a class="code" href="classmember__ptr.html">member_ptr<T></a>(p) {}</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <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)</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  : <a class="code" href="classmember__ptr.html">member_ptr<T></a>(rhs.m_p ? <span class="keyword">new</span> T(*rhs.m_p) : NULLPTR) {}</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <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);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& rhs)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> (!this->m_p && !rhs.m_p) || (this->m_p && rhs.m_p && *this->m_p == *rhs.m_p);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> };</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& <a class="code" href="classvalue__ptr.html">value_ptr<T>::operator=</a>(<span class="keyword">const</span> <a class="code" href="classvalue__ptr.html">value_ptr<T></a>& rhs)</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> {</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  T *old_p = this->m_p;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  this->m_p = rhs.m_p ? <span class="keyword">new</span> T(*rhs.m_p) : NULLPTR;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">delete</span> old_p;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// ********************************************************</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"></span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">/// \brief A pointer which can be copied and cloned</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">/// \tparam T class or type</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">/// \details \p T should adhere to the \p Clonable interface</span></div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classclonable__ptr.html"> 103</a></span> <span class="comment"></span><span class="keyword">template</span><<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classclonable__ptr.html">clonable_ptr</a> : <span class="keyword">public</span> <a class="code" href="classmember__ptr.html">member_ptr</a><T></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="classclonable__ptr.html">clonable_ptr</a>(<span class="keyword">const</span> T &obj) : <a class="code" href="classmember__ptr.html">member_ptr<T></a>(obj.Clone()) {}</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="classclonable__ptr.html">clonable_ptr</a>(T *p = NULLPTR) : <a class="code" href="classmember__ptr.html">member_ptr<T></a>(p) {}</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classclonable__ptr.html">clonable_ptr</a>(<span class="keyword">const</span> <a class="code" href="classclonable__ptr.html">clonable_ptr<T></a>& rhs)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  : <a class="code" href="classmember__ptr.html">member_ptr<T></a>(rhs.m_p ? rhs.m_p->Clone() : NULLPTR) {}</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="classclonable__ptr.html">clonable_ptr<T></a>& operator=(<span class="keyword">const</span> <a class="code" href="classclonable__ptr.html">clonable_ptr<T></a>& rhs);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> };</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classclonable__ptr.html">clonable_ptr<T></a>& <a class="code" href="classclonable__ptr.html">clonable_ptr<T>::operator=</a>(<span class="keyword">const</span> <a class="code" href="classclonable__ptr.html">clonable_ptr<T></a>& rhs)</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  T *old_p = this->m_p;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  this->m_p = rhs.m_p ? rhs.m_p->Clone() : NULLPTR;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">delete</span> old_p;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> }</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// ********************************************************</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"></span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">/// \brief Reference counted pointer</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">/// \tparam T class or type</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">/// \details users should declare \p m_referenceCount as <tt>std::atomic<unsigned></tt></span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">/// (or similar) under C++ 11</span></div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="classcounted__ptr.html"> 128</a></span> <span class="comment"></span><span class="keyword">template</span><<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classcounted__ptr.html">counted_ptr</a></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">explicit</span> <a class="code" href="classcounted__ptr.html">counted_ptr</a>(T *p = 0);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="classcounted__ptr.html">counted_ptr</a>(<span class="keyword">const</span> T &r) : m_p(0) {attach(r);}</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="classcounted__ptr.html">counted_ptr</a>(<span class="keyword">const</span> <a class="code" href="classcounted__ptr.html">counted_ptr<T></a>& rhs);</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  ~<a class="code" href="classcounted__ptr.html">counted_ptr</a>();</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">const</span> T& operator*()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> *m_p; }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  T& operator*() { <span class="keywordflow">return</span> *m_p; }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">const</span> T* operator->()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_p; }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  T* operator->() { <span class="keywordflow">return</span> get(); }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">const</span> T* get()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_p; }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  T* get();</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">void</span> attach(<span class="keyword">const</span> T &p);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="classcounted__ptr.html">counted_ptr<T></a> & operator=(<span class="keyword">const</span> <a class="code" href="classcounted__ptr.html">counted_ptr<T></a>& rhs);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  T *m_p;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> };</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classcounted__ptr.html">counted_ptr<T>::counted_ptr</a>(T *p)</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  : m_p(p)</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> (m_p)</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  m_p->m_referenceCount = 1;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classcounted__ptr.html">counted_ptr<T>::counted_ptr</a>(<span class="keyword">const</span> <a class="code" href="classcounted__ptr.html">counted_ptr<T></a>& rhs)</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  : m_p(rhs.m_p)</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> {</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (m_p)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  m_p->m_referenceCount++;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classcounted__ptr.html">counted_ptr<T>::~counted_ptr</a>()</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> {</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span> (m_p && --m_p->m_referenceCount == 0)</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">delete</span> m_p;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keywordtype">void</span> <a class="code" href="classcounted__ptr.html">counted_ptr<T>::attach</a>(<span class="keyword">const</span> T &r)</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (m_p && --m_p->m_referenceCount == 0)</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">delete</span> m_p;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (r.m_referenceCount == 0)</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  {</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  m_p = r.clone();</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  m_p->m_referenceCount = 1;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  {</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  m_p = const_cast<T *>(&r);</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  m_p->m_referenceCount++;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> }</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> T* <a class="code" href="classcounted__ptr.html">counted_ptr<T>::get</a>()</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> {</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (m_p && m_p->m_referenceCount > 1)</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  {</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  T *temp = m_p->clone();</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  m_p->m_referenceCount--;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  m_p = temp;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  m_p->m_referenceCount = 1;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  }</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> m_p;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keyword">template</span> <<span class="keyword">class</span> T> <a class="code" href="classcounted__ptr.html">counted_ptr<T></a> & <a class="code" href="classcounted__ptr.html">counted_ptr<T>::operator=</a>(<span class="keyword">const</span> <a class="code" href="classcounted__ptr.html">counted_ptr<T></a>& rhs)</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> {</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">if</span> (m_p != rhs.m_p)</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">if</span> (m_p && --m_p->m_referenceCount == 0)</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">delete</span> m_p;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  m_p = rhs.m_p;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">if</span> (m_p)</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  m_p->m_referenceCount++;</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// ********************************************************</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment"></span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">/// \brief Manages resources for an array of objects</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">/// \tparam T class or type</span></div><div class="line"><a name="l00219"></a><span class="lineno"><a class="line" href="classvector__member__ptrs.html"> 219</a></span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classvector__member__ptrs.html">vector_member_ptrs</a></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment"> /// Construct an arry of \p T</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"> /// \param size the size of the array, in elements</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> /// \details If \p T is a Plain Old Dataype (POD), then the array is uninitialized.</span></div><div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="classvector__member__ptrs.html#a4ccb624330e43c1121a2b74b2487307c"> 225</a></span> <span class="comment"></span> <a class="code" href="classvector__member__ptrs.html#a4ccb624330e43c1121a2b74b2487307c">vector_member_ptrs</a>(<span class="keywordtype">size_t</span> size=0)</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  : m_size(size), m_ptr(new <a class="code" href="classmember__ptr.html">member_ptr</a><T>[size]) {}</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  ~<a class="code" href="classvector__member__ptrs.html">vector_member_ptrs</a>()</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  {<span class="keyword">delete</span> [] this->m_ptr;}</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="classmember__ptr.html">member_ptr<T></a>& operator[](<span class="keywordtype">size_t</span> index)</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  {<a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(index<this->m_size); <span class="keywordflow">return</span> this->m_ptr[index];}</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">const</span> <a class="code" href="classmember__ptr.html">member_ptr<T></a>& operator[](<span class="keywordtype">size_t</span> index)<span class="keyword"> const</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keyword"> </span>{<a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(index<this->m_size); <span class="keywordflow">return</span> this->m_ptr[index];}</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordtype">size_t</span> size()<span class="keyword"> const </span>{<span class="keywordflow">return</span> this->m_size;}</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordtype">void</span> resize(<span class="keywordtype">size_t</span> newSize)</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  {</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <a class="code" href="classmember__ptr.html">member_ptr<T></a> *newPtr = <span class="keyword">new</span> <a class="code" href="classmember__ptr.html">member_ptr<T></a>[newSize];</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<this->m_size && i<newSize; i++)</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  newPtr[i].reset(this->m_ptr[i].release());</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">delete</span> [] this->m_ptr;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  this->m_size = newSize;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  this->m_ptr = newPtr;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <a class="code" href="classvector__member__ptrs.html#a4ccb624330e43c1121a2b74b2487307c">vector_member_ptrs</a>(<span class="keyword">const</span> <a class="code" href="classvector__member__ptrs.html">vector_member_ptrs<T></a> &c); <span class="comment">// copy not allowed</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="classvector__member__ptrs.html">vector_member_ptrs<T></a> &x); <span class="comment">// assignment not allowed</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordtype">size_t</span> m_size;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="classmember__ptr.html">member_ptr<T></a> *m_ptr;</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> };</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> NAMESPACE_END</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Library configuration file.</div></div>
<div class="ttc" id="stdcpp_8h_html"><div class="ttname"><a href="stdcpp_8h.html">stdcpp.h</a></div><div class="ttdoc">Common C++ header files.</div></div>
<div class="ttc" id="classmember__ptr_html"><div class="ttname"><a href="classmember__ptr.html">member_ptr</a></div><div class="ttdoc">Pointer that overloads operator -></div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00036">smartptr.h:36</a></div></div>
<div class="ttc" id="classcounted__ptr_html"><div class="ttname"><a href="classcounted__ptr.html">counted_ptr</a></div><div class="ttdoc">Reference counted pointer.</div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00128">smartptr.h:128</a></div></div>
<div class="ttc" id="classsimple__ptr_html"><div class="ttname"><a href="classsimple__ptr.html">simple_ptr</a></div><div class="ttdoc">Manages resources for a single object.</div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00018">smartptr.h:18</a></div></div>
<div class="ttc" id="classclonable__ptr_html"><div class="ttname"><a href="classclonable__ptr.html">clonable_ptr</a></div><div class="ttdoc">A pointer which can be copied and cloned.</div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00103">smartptr.h:103</a></div></div>
<div class="ttc" id="classvector__member__ptrs_html"><div class="ttname"><a href="classvector__member__ptrs.html">vector_member_ptrs</a></div><div class="ttdoc">Manages resources for an array of objects.</div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00219">smartptr.h:219</a></div></div>
<div class="ttc" id="trap_8h_html_adf3b392588bc94cbeae9f415a78c7b95"><div class="ttname"><a href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a></div><div class="ttdeci">#define CRYPTOPP_ASSERT(exp)</div><div class="ttdoc">Debugging and diagnostic assertion.</div><div class="ttdef"><b>Definition:</b> <a href="trap_8h_source.html#l00060">trap.h:60</a></div></div>
<div class="ttc" id="classvector__member__ptrs_html_a4ccb624330e43c1121a2b74b2487307c"><div class="ttname"><a href="classvector__member__ptrs.html#a4ccb624330e43c1121a2b74b2487307c">vector_member_ptrs::vector_member_ptrs</a></div><div class="ttdeci">vector_member_ptrs(size_t size=0)</div><div class="ttdoc">Construct an arry of T.</div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00225">smartptr.h:225</a></div></div>
<div class="ttc" id="classvalue__ptr_html"><div class="ttname"><a href="classvalue__ptr.html">value_ptr</a></div><div class="ttdoc">Value pointer.</div><div class="ttdef"><b>Definition:</b> <a href="smartptr_8h_source.html#l00075">smartptr.h:75</a></div></div>
<div class="ttc" id="namespace_crypto_p_p_html"><div class="ttname"><a href="namespace_crypto_p_p.html">CryptoPP</a></div><div class="ttdoc">Crypto++ library namespace.</div></div>
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