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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div class="title">zdeflate.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// zdeflate.cpp - 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> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Many of the algorithms and tables used here came from the deflate implementation</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// by Jean-loup Gailly, which was included in Crypto++ 4.0 and earlier. I completely</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// rewrote it in order to fix a bug that I could not figure out. This code</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// is less clever, but hopefully more understandable and maintainable.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "<a class="code" href="pch_8h.html">pch.h</a>"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "<a class="code" href="zdeflate_8h.html">zdeflate.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> <span class="preprocessor">#include "<a class="code" href="misc_8h.html">misc.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#if (defined(_MSC_VER) && (_MSC_VER < 1400)) && !defined(__MWERKS__)</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="comment">// VC60 and VC7 workaround: built-in std::reverse_iterator has two template parameters, Dinkumware only has one</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keyword">typedef</span> std::reverse_bidirectional_iterator<unsigned int *, unsigned int> RevIt;</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#elif defined(_RWSTD_NO_CLASS_PARTIAL_SPEC)</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keyword">typedef</span> std::reverse_iterator<unsigned int *, std::random_access_iterator_tag, unsigned int> RevIt;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keyword">typedef</span> std::reverse_iterator<unsigned int *> RevIt;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="class_low_first_bit_writer.html#a8d67445920583ea9223ee504d190a8ec"> 24</a></span> <a class="code" href="class_low_first_bit_writer.html#a8d67445920583ea9223ee504d190a8ec">LowFirstBitWriter::LowFirstBitWriter</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment)</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  : <a class="code" href="class_filter.html">Filter</a>(attachment), m_counting(false), m_bitCount(0), m_buffer(0)</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  , m_bitsBuffered(0), m_bytesBuffered(0)</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> }</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="keywordtype">void</span> LowFirstBitWriter::StartCounting()</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(!m_counting);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  m_counting = <span class="keyword">true</span>;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  m_bitCount = 0;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> LowFirstBitWriter::FinishCounting()</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_counting);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  m_counting = <span class="keyword">false</span>;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">return</span> m_bitCount;</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> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">void</span> LowFirstBitWriter::PutBits(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> value, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length)</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="keywordflow">if</span> (m_counting)</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  m_bitCount += length;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  m_buffer |= value << m_bitsBuffered;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  m_bitsBuffered += length;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_bitsBuffered <= <span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)*8);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">while</span> (m_bitsBuffered >= 8)</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  m_outputBuffer[m_bytesBuffered++] = (byte)m_buffer;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (m_bytesBuffered == m_outputBuffer.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>())</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>  <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#ae15df84a7b67c25dfe2ce0ef5a74123c">PutModifiable</a>(m_outputBuffer, m_bytesBuffered);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  m_bytesBuffered = 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>  m_buffer >>= 8;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  m_bitsBuffered -= 8;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</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> }</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> <span class="keywordtype">void</span> LowFirstBitWriter::FlushBitBuffer()</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">if</span> (m_counting)</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  m_bitCount += 8*(m_bitsBuffered > 0);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  {</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">if</span> (m_bytesBuffered > 0)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#ae15df84a7b67c25dfe2ce0ef5a74123c">PutModifiable</a>(m_outputBuffer, m_bytesBuffered);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  m_bytesBuffered = 0;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  }</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (m_bitsBuffered > 0)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede">Put</a>((byte)m_buffer);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  m_buffer = 0;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  m_bitsBuffered = 0;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  }</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> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">void</span> LowFirstBitWriter::ClearBitBuffer()</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>  m_buffer = 0;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  m_bytesBuffered = 0;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  m_bitsBuffered = 0;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="class_huffman_encoder.html#af646f8a57a3fae0ff8c2e8ff27d8db87"> 94</a></span> <a class="code" href="class_huffman_encoder.html#af2b441522d45cf1e1935673e27d09b30">HuffmanEncoder::HuffmanEncoder</a>(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *codeBits, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nCodes)</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> {</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">Initialize</a>(codeBits, nCodes);</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> </div><div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="struct_huffman_node.html"> 99</a></span> <span class="keyword">struct </span><a class="code" href="struct_huffman_node.html">HuffmanNode</a></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> {</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// Coverity finding on uninitialized 'symbol' member</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="struct_huffman_node.html">HuffmanNode</a>()</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  : symbol(0), parent(0) {}</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="struct_huffman_node.html">HuffmanNode</a>(<span class="keyword">const</span> <a class="code" href="struct_huffman_node.html">HuffmanNode</a>& rhs)</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  : symbol(rhs.symbol), parent(rhs.parent) {}</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">size_t</span> symbol;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">union </span>{<span class="keywordtype">size_t</span> parent; <span class="keywordtype">unsigned</span> depth, freq;};</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> };</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="struct_freq_less_than.html"> 111</a></span> <span class="keyword">struct </span><a class="code" href="struct_freq_less_than.html">FreqLessThan</a></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>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator()(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lhs, <span class="keyword">const</span> <a class="code" href="struct_huffman_node.html">HuffmanNode</a> &rhs) {<span class="keywordflow">return</span> lhs < rhs.freq;}</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> <a class="code" href="struct_huffman_node.html">HuffmanNode</a> &lhs, <span class="keyword">const</span> <a class="code" href="struct_huffman_node.html">HuffmanNode</a> &rhs)<span class="keyword"> const </span>{<span class="keywordflow">return</span> lhs.freq < rhs.freq;}</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// needed for MSVC .NET 2005</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> <a class="code" href="struct_huffman_node.html">HuffmanNode</a> &lhs, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rhs) {<span class="keywordflow">return</span> lhs.freq < rhs;}</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> };</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keywordtype">void</span> HuffmanEncoder::GenerateCodeLengths(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *codeBits, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxCodeBits, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *codeCounts, <span class="keywordtype">size_t</span> nCodes)</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(nCodes > 0);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(nCodes <= ((<span class="keywordtype">size_t</span>)1 << maxCodeBits));</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">size_t</span> i;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="class_sec_block_with_hint.html">SecBlockWithHint<HuffmanNode, 2*286></a> tree(nCodes);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">for</span> (i=0; i<nCodes; i++)</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  tree[i].symbol = i;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  tree[i].freq = codeCounts[i];</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  std::sort(tree.begin(), tree.end(), <a class="code" href="struct_freq_less_than.html">FreqLessThan</a>());</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">size_t</span> treeBegin = std::upper_bound(tree.begin(), tree.end(), 0, <a class="code" href="struct_freq_less_than.html">FreqLessThan</a>()) - tree.begin();</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (treeBegin == nCodes)</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  { <span class="comment">// special case for no codes</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  std::fill(codeBits, codeBits+nCodes, 0);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  tree.resize(nCodes + nCodes - treeBegin - 1);</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="keywordtype">size_t</span> leastLeaf = treeBegin, leastInterior = nCodes;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">for</span> (i=nCodes; i<tree.size(); i++)</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="keywordtype">size_t</span> least;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  least = (leastLeaf == nCodes || (leastInterior < i && tree[leastInterior].freq < tree[leastLeaf].freq)) ? leastInterior++ : leastLeaf++;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  tree[i].freq = tree[least].freq;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  tree[least].parent = i;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  least = (leastLeaf == nCodes || (leastInterior < i && tree[leastInterior].freq < tree[leastLeaf].freq)) ? leastInterior++ : leastLeaf++;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  tree[i].freq += tree[least].freq;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  tree[least].parent = i;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  tree[tree.size()-1].depth = 0;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">if</span> (tree.size() >= 2)</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">for</span> (i=tree.size()-2; i>=nCodes; i--)</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  tree[i].depth = tree[tree[i].parent].depth + 1;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sum = 0;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="class_sec_block_with_hint.html">SecBlockWithHint<unsigned int, 15+1></a> blCount(maxCodeBits+1);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  std::fill(blCount.begin(), blCount.end(), 0);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">for</span> (i=treeBegin; i<nCodes; i++)</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">const</span> <span class="keywordtype">size_t</span> n = tree[i].parent;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> depth = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(maxCodeBits, tree[n].depth + 1);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  blCount[depth]++;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  sum += 1 << (maxCodeBits - depth);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</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>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> overflow = sum > (<span class="keywordtype">unsigned</span> int)(1 << maxCodeBits) ? sum - (1 << maxCodeBits) : 0;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">while</span> (overflow--)</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bits = maxCodeBits-1;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">while</span> (blCount[bits] == 0)</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  bits--;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  blCount[bits]--;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  blCount[bits+1] += 2;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(blCount[maxCodeBits] > 0);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  blCount[maxCodeBits]--;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</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>  <span class="keywordflow">for</span> (i=0; i<treeBegin; i++)</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  codeBits[tree[i].symbol] = 0;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bits = maxCodeBits;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">for</span> (i=treeBegin; i<nCodes; i++)</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>  <span class="keywordflow">while</span> (blCount[bits] == 0)</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  bits--;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  codeBits[tree[i].symbol] = bits;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  blCount[bits]--;</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(blCount[bits] == 0);</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> </div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d"> 193</a></span> <span class="keywordtype">void</span> <a class="code" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">HuffmanEncoder::Initialize</a>(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *codeBits, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nCodes)</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> {</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(nCodes > 0);</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxCodeBits = *std::max_element(codeBits, codeBits+nCodes);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (maxCodeBits == 0)</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span>; <span class="comment">// assume this object won't be used</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="class_sec_block_with_hint.html">SecBlockWithHint<unsigned int, 15+1></a> blCount(maxCodeBits+1);</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  std::fill(blCount.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), blCount.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), 0);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">for</span> (i=0; i<nCodes; i++)</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  blCount[codeBits[i]]++;</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>  code_t code = 0;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <a class="code" href="class_sec_block_with_hint.html">SecBlockWithHint<code_t, 15+1></a> nextCode(maxCodeBits+1);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  nextCode[1] = 0;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">for</span> (i=2; i<=maxCodeBits; i++)</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  code = (code + blCount[i-1]) << 1;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  nextCode[i] = code;</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(maxCodeBits == 1 || code == (1 << maxCodeBits) - blCount[maxCodeBits]);</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  m_valueToCode.resize(nCodes);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">for</span> (i=0; i<nCodes; i++)</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  {</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len = m_valueToCode[i].len = codeBits[i];</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> (len != 0)</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  m_valueToCode[i].code = <a class="code" href="misc_8h.html#a1746e70bf831f0cbf8ad73d8c15bc921">BitReverse</a>(nextCode[len]++) >> (8*<span class="keyword">sizeof</span>(code_t)-len);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> HuffmanEncoder::Encode(<a class="code" href="class_low_first_bit_writer.html">LowFirstBitWriter</a> &writer, value_t value)<span class="keyword"> const</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="keyword"></span>{</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_valueToCode[value].len > 0);</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  writer.PutBits(m_valueToCode[value].code, m_valueToCode[value].len);</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> </div><div class="line"><a name="l00231"></a><span class="lineno"><a class="line" href="class_deflator.html#aee81a8ccc99647834b079bbcb70e4027"> 231</a></span> <a class="code" href="class_deflator.html#aee81a8ccc99647834b079bbcb70e4027">Deflator::Deflator</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment, <span class="keywordtype">int</span> deflateLevel, <span class="keywordtype">int</span> log2WindowSize, <span class="keywordtype">bool</span> detectUncompressible)</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  : <a class="code" href="class_low_first_bit_writer.html">LowFirstBitWriter</a>(attachment)</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  , m_deflateLevel(-1)</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>  InitializeStaticEncoders();</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="class_deflator.html#ac9f545b8062a7e822e537364ef422111">IsolatedInitialize</a>(<a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"DeflateLevel"</span>, deflateLevel)(<span class="stringliteral">"Log2WindowSize"</span>, log2WindowSize)(<span class="stringliteral">"DetectUncompressible"</span>, detectUncompressible));</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> </div><div class="line"><a name="l00239"></a><span class="lineno"><a class="line" href="class_deflator.html#ac8cc60904628ddbd604458c2fbf15632"> 239</a></span> <a class="code" href="class_deflator.html#aee81a8ccc99647834b079bbcb70e4027">Deflator::Deflator</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters, <a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> *attachment)</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  : <a class="code" href="class_low_first_bit_writer.html">LowFirstBitWriter</a>(attachment)</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  , m_deflateLevel(-1)</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> {</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  InitializeStaticEncoders();</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <a class="code" href="class_deflator.html#ac9f545b8062a7e822e537364ef422111">IsolatedInitialize</a>(parameters);</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> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="keywordtype">void</span> Deflator::InitializeStaticEncoders()</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> {</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> codeLengths[288];</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  std::fill(codeLengths + 0, codeLengths + 144, 8);</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  std::fill(codeLengths + 144, codeLengths + 256, 9);</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  std::fill(codeLengths + 256, codeLengths + 280, 7);</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  std::fill(codeLengths + 280, codeLengths + 288, 8);</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  m_staticLiteralEncoder.<a class="code" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">Initialize</a>(codeLengths, 288);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  std::fill(codeLengths + 0, codeLengths + 32, 5);</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  m_staticDistanceEncoder.<a class="code" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">Initialize</a>(codeLengths, 32);</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> }</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="class_deflator.html#ac9f545b8062a7e822e537364ef422111"> 259</a></span> <span class="keywordtype">void</span> <a class="code" href="class_deflator.html#ac9f545b8062a7e822e537364ef422111">Deflator::IsolatedInitialize</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters)</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> {</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordtype">int</span> log2WindowSize = parameters.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Log2WindowSize"</span>, <a class="code" href="class_deflator.html#a5d1d2b1a7c83fa2b2ebb2adeb646d4baa255f7554f69a861bf69bf40c2ad79334">DEFAULT_LOG2_WINDOW_SIZE</a>);</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">if</span> (!(<a class="code" href="class_deflator.html#a5d1d2b1a7c83fa2b2ebb2adeb646d4baadc9d5f12cda39d4a4303af54e21a65c8">MIN_LOG2_WINDOW_SIZE</a> <= log2WindowSize && log2WindowSize <= <a class="code" href="class_deflator.html#a5d1d2b1a7c83fa2b2ebb2adeb646d4baa2ad5ee7b41a04c975a32e721641754d8">MAX_LOG2_WINDOW_SIZE</a>))</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"Deflator: "</span> + <a class="code" href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a>(log2WindowSize) + <span class="stringliteral">" is an invalid window size"</span>);</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  m_log2WindowSize = log2WindowSize;</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  DSIZE = 1 << m_log2WindowSize;</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  DMASK = DSIZE - 1;</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  HSIZE = 1 << m_log2WindowSize;</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  HMASK = HSIZE - 1;</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  m_byteBuffer.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(2*DSIZE);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  m_head.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(HSIZE);</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  m_prev.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(DSIZE);</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  m_matchBuffer.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(DSIZE/2);</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  Reset(<span class="keyword">true</span>);</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> deflateLevel = parameters.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"DeflateLevel"</span>, <a class="code" href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797a88190923f9a4afb1e3e43daa3aaf32c9">DEFAULT_DEFLATE_LEVEL</a>);</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(deflateLevel >= <a class="code" href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797a81ef097154334c9425cc13d1da4b5e82">MIN_DEFLATE_LEVEL</a> <span class="comment">/*0*/</span> && deflateLevel <= <a class="code" href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797ad15dc39a3f833cce997c3cade5f556ca">MAX_DEFLATE_LEVEL</a> <span class="comment">/*9*/</span>);</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="code" href="class_deflator.html#a5b19de812080b7b12d0a6cc974f60b33">SetDeflateLevel</a>(deflateLevel);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordtype">bool</span> detectUncompressible = parameters.<a class="code" href="class_name_value_pairs.html#a4daf1ef67b547c6be96188a43e5ec05e">GetValueWithDefault</a>(<span class="stringliteral">"DetectUncompressible"</span>, <span class="keyword">true</span>);</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  m_compressibleDeflateLevel = detectUncompressible ? m_deflateLevel : 0;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> }</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="keywordtype">void</span> Deflator::Reset(<span class="keywordtype">bool</span> forceReset)</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> (forceReset)</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  ClearBitBuffer();</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_bitsBuffered == 0);</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  m_headerWritten = <span class="keyword">false</span>;</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  m_matchAvailable = <span class="keyword">false</span>;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  m_dictionaryEnd = 0;</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  m_stringStart = 0;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  m_lookahead = 0;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  m_minLookahead = MAX_MATCH;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  m_matchBufferEnd = 0;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  m_blockStart = 0;</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  m_blockLength = 0;</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> </div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  m_detectCount = 1;</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  m_detectSkip = 0;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// m_prev will be initialized automatically in InsertString</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  std::fill(m_head.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), m_head.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), byte(0));</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  std::fill(m_literalCounts.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), m_literalCounts.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), byte(0));</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  std::fill(m_distanceCounts.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), m_distanceCounts.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), byte(0));</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> }</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div><div class="line"><a name="l00310"></a><span class="lineno"><a class="line" href="class_deflator.html#a5b19de812080b7b12d0a6cc974f60b33"> 310</a></span> <span class="keywordtype">void</span> <a class="code" href="class_deflator.html#a5b19de812080b7b12d0a6cc974f60b33">Deflator::SetDeflateLevel</a>(<span class="keywordtype">int</span> deflateLevel)</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> {</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">if</span> (!(<a class="code" href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797a81ef097154334c9425cc13d1da4b5e82">MIN_DEFLATE_LEVEL</a> <= deflateLevel && deflateLevel <= <a class="code" href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797ad15dc39a3f833cce997c3cade5f556ca">MAX_DEFLATE_LEVEL</a>))</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"Deflator: "</span> + <a class="code" href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a>(deflateLevel) + <span class="stringliteral">" is an invalid deflate level"</span>);</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span> (deflateLevel == m_deflateLevel)</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  EndBlock(<span class="keyword">false</span>);</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> configurationTable[10][4] = {</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">/* good lazy nice chain */</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">/* 0 */</span> {0, 0, 0, 0}, <span class="comment">/* store only */</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">/* 1 */</span> {4, 3, 8, 4}, <span class="comment">/* maximum speed, no lazy matches */</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">/* 2 */</span> {4, 3, 16, 8},</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">/* 3 */</span> {4, 3, 32, 32},</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">/* 4 */</span> {4, 4, 16, 16}, <span class="comment">/* lazy matches */</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">/* 5 */</span> {8, 16, 32, 32},</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="comment">/* 6 */</span> {8, 16, 128, 128},</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">/* 7 */</span> {8, 32, 128, 256},</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">/* 8 */</span> {32, 128, 258, 1024},</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">/* 9 */</span> {32, 258, 258, 4096}}; <span class="comment">/* maximum compression */</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  GOOD_MATCH = configurationTable[deflateLevel][0];</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  MAX_LAZYLENGTH = configurationTable[deflateLevel][1];</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  MAX_CHAIN_LENGTH = configurationTable[deflateLevel][3];</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  m_deflateLevel = deflateLevel;</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> }</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Deflator::FillWindow(<span class="keyword">const</span> byte *str, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> {</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxBlockSize = (<span class="keywordtype">unsigned</span> int)<a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(2UL*DSIZE, 0xffffUL);</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">if</span> (m_stringStart >= maxBlockSize - MAX_MATCH)</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  {</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">if</span> (m_blockStart < DSIZE)</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  EndBlock(<span class="keyword">false</span>);</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  memcpy(m_byteBuffer, m_byteBuffer + DSIZE, DSIZE);</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  m_dictionaryEnd = m_dictionaryEnd < DSIZE ? 0 : m_dictionaryEnd-DSIZE;</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_stringStart >= DSIZE);</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  m_stringStart -= DSIZE;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(!m_matchAvailable || m_previousMatch >= DSIZE);</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  m_previousMatch -= DSIZE;</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_blockStart >= DSIZE);</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  m_blockStart -= DSIZE;</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// These are set to the same value in IsolatedInitialize(). If they</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="comment">// are the same, then we can clear a Coverity false alarm.</span></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(DSIZE == HSIZE);</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">for</span> (i=0; i<HSIZE; i++)</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  m_head[i] = <a class="code" href="misc_8h.html#a30712a90999ad9d9152975f2e92d46b8">SaturatingSubtract</a>(m_head[i], HSIZE); <span class="comment">// was DSIZE???</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> </div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordflow">for</span> (i=0; i<DSIZE; i++)</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  m_prev[i] = <a class="code" href="misc_8h.html#a30712a90999ad9d9152975f2e92d46b8">SaturatingSubtract</a>(m_prev[i], DSIZE);</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  }</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(maxBlockSize > m_stringStart+m_lookahead);</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> accepted = <a class="code" href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a>(maxBlockSize-(m_stringStart+m_lookahead), length);</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(accepted > 0);</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  memcpy(m_byteBuffer + m_stringStart + m_lookahead, str, accepted);</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  m_lookahead += accepted;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">return</span> accepted;</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span> }</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Deflator::ComputeHash(<span class="keyword">const</span> byte *str)<span class="keyword"> const</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="keyword"></span>{</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(str+3 <= m_byteBuffer + m_stringStart + m_lookahead);</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">return</span> ((str[0] << 10) ^ (str[1] << 5) ^ str[2]) & HMASK;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> }</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Deflator::LongestMatch(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &bestMatch)<span class="keyword"> const</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="keyword"></span>{</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_previousLength < MAX_MATCH);</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> </div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  bestMatch = 0;</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bestLength = <a class="code" href="misc_8h.html#af1490597cb11989e78d5ba5b5f21266b">STDMAX</a>(m_previousLength, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)MIN_MATCH-1);</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">if</span> (m_lookahead <= bestLength)</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keyword">const</span> byte *scan = m_byteBuffer + m_stringStart, *scanEnd = scan + <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)MAX_MATCH, m_lookahead);</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> limit = m_stringStart > (DSIZE-MAX_MATCH) ? m_stringStart - (DSIZE-MAX_MATCH) : 0;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> current = m_head[ComputeHash(scan)];</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> chainLength = MAX_CHAIN_LENGTH;</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">if</span> (m_previousLength >= GOOD_MATCH)</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  chainLength >>= 2;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">while</span> (current > limit && --chainLength > 0)</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  {</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keyword">const</span> byte *match = m_byteBuffer + current;</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(scan + bestLength < m_byteBuffer + m_stringStart + m_lookahead);</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">if</span> (scan[bestLength-1] == match[bestLength-1] && scan[bestLength] == match[bestLength] && scan[0] == match[0] && scan[1] == match[1])</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  {</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(scan[2] == match[2]);</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len = (<span class="keywordtype">unsigned</span> int)(</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> #<span class="keywordflow">if</span> defined(_STDEXT_BEGIN) && !(defined(_MSC_VER) && (_MSC_VER < 1400 || _MSC_VER >= 1600)) && !defined(_STLPORT_VERSION)</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  stdext::unchecked_mismatch</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  std::mismatch</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="preprocessor">#if _MSC_VER >= 1600</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  (stdext::make_unchecked_array_iterator(scan)+3, stdext::make_unchecked_array_iterator(scanEnd), stdext::make_unchecked_array_iterator(match)+3).first - stdext::make_unchecked_array_iterator(scan));</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  (scan+3, scanEnd, match+3).first - scan);</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(len != bestLength);</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">if</span> (len > bestLength)</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  {</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  bestLength = len;</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  bestMatch = current;</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(scanEnd >= scan);</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">if</span> (len == (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)(scanEnd - scan))</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  }</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  }</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  current = m_prev[current & DMASK];</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  }</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">return</span> (bestMatch > 0) ? bestLength : 0;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> }</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> Deflator::InsertString(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> start)</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> {</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(start <= 0xffff);</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hash = ComputeHash(m_byteBuffer + start);</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  m_prev[start & DMASK] = m_head[hash];</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  m_head[hash] = word16(start);</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> }</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="keywordtype">void</span> Deflator::ProcessBuffer()</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span> {</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">if</span> (!m_headerWritten)</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  {</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  WritePrestreamHeader();</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  m_headerWritten = <span class="keyword">true</span>;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> (m_deflateLevel == 0)</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  {</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  m_stringStart += m_lookahead;</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  m_lookahead = 0;</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  m_blockLength = m_stringStart - m_blockStart;</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  m_matchAvailable = <span class="keyword">false</span>;</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  }</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keywordflow">while</span> (m_lookahead > m_minLookahead)</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  {</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">while</span> (m_dictionaryEnd < m_stringStart && m_dictionaryEnd+3 <= m_stringStart+m_lookahead)</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  InsertString(m_dictionaryEnd++);</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">if</span> (m_matchAvailable)</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  {</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> matchPosition = 0, matchLength = 0;</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keywordtype">bool</span> usePreviousMatch;</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">if</span> (m_previousLength >= MAX_LAZYLENGTH)</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  usePreviousMatch = <span class="keyword">true</span>;</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  {</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  matchLength = LongestMatch(matchPosition);</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  usePreviousMatch = (matchLength == 0);</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  }</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">if</span> (usePreviousMatch)</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  {</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  MatchFound(m_stringStart-1-m_previousMatch, m_previousLength);</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  m_stringStart += m_previousLength-1;</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  m_lookahead -= m_previousLength-1;</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  m_matchAvailable = <span class="keyword">false</span>;</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  {</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  m_previousLength = matchLength;</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  m_previousMatch = matchPosition;</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  LiteralByte(m_byteBuffer[m_stringStart-1]);</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  m_stringStart++;</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  m_lookahead--;</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  }</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  }</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  {</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  m_previousLength = 0;</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  m_previousLength = LongestMatch(m_previousMatch);</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">if</span> (m_previousLength)</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  m_matchAvailable = <span class="keyword">true</span>;</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  LiteralByte(m_byteBuffer[m_stringStart]);</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  m_stringStart++;</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  m_lookahead--;</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  }</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_stringStart - (m_blockStart+m_blockLength) == (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)m_matchAvailable);</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  }</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> </div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">if</span> (m_minLookahead == 0 && m_matchAvailable)</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  {</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  LiteralByte(m_byteBuffer[m_stringStart-1]);</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  m_matchAvailable = <span class="keyword">false</span>;</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  }</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> }</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div><div class="line"><a name="l00515"></a><span class="lineno"><a class="line" href="class_deflator.html#ab3ba26f52807a9b5d4af6948d56cd4a9"> 515</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_deflator.html#ab3ba26f52807a9b5d4af6948d56cd4a9">Deflator::Put2</a>(<span class="keyword">const</span> byte *str, <span class="keywordtype">size_t</span> length, <span class="keywordtype">int</span> messageEnd, <span class="keywordtype">bool</span> blocking)</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> {</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">if</span> (!blocking)</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">throw</span> <a class="code" href="struct_buffered_transformation_1_1_blocking_input_only.html">BlockingInputOnly</a>(<span class="stringliteral">"Deflator"</span>);</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keywordtype">size_t</span> accepted = 0;</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">while</span> (accepted < length)</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  {</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> newAccepted = FillWindow(str+accepted, length-accepted);</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  ProcessBuffer();</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="comment">// call ProcessUncompressedData() after WritePrestreamHeader()</span></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  ProcessUncompressedData(str+accepted, newAccepted);</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  accepted += newAccepted;</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  }</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(accepted == length);</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">if</span> (messageEnd)</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  {</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  m_minLookahead = 0;</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  ProcessBuffer();</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  EndBlock(<span class="keyword">true</span>);</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  FlushBitBuffer();</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  WritePoststreamTail();</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  Reset();</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  }</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> </div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  Output(0, NULLPTR, 0, messageEnd, blocking);</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> }</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> </div><div class="line"><a name="l00545"></a><span class="lineno"><a class="line" href="class_deflator.html#a4337716743ff155dc5321843eda29d00"> 545</a></span> <span class="keywordtype">bool</span> <a class="code" href="class_deflator.html#a4337716743ff155dc5321843eda29d00">Deflator::IsolatedFlush</a>(<span class="keywordtype">bool</span> hardFlush, <span class="keywordtype">bool</span> blocking)</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> {</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keywordflow">if</span> (!blocking)</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keywordflow">throw</span> <a class="code" href="struct_buffered_transformation_1_1_blocking_input_only.html">BlockingInputOnly</a>(<span class="stringliteral">"Deflator"</span>);</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> </div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  m_minLookahead = 0;</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  ProcessBuffer();</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  m_minLookahead = MAX_MATCH;</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  EndBlock(<span class="keyword">false</span>);</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keywordflow">if</span> (hardFlush)</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  EncodeBlock(<span class="keyword">false</span>, STORED);</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> }</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> </div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="keywordtype">void</span> Deflator::LiteralByte(byte b)</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> {</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">if</span> (m_matchBufferEnd == m_matchBuffer.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>())</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  EndBlock(<span class="keyword">false</span>);</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  m_matchBuffer[m_matchBufferEnd++].literalCode = b;</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  m_literalCounts[b]++;</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  m_blockLength++;</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> }</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> </div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="keywordtype">void</span> Deflator::MatchFound(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> distance, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length)</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span> {</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">if</span> (m_matchBufferEnd == m_matchBuffer.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>())</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  EndBlock(<span class="keyword">false</span>);</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> </div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lengthCodes[] = {</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  257, 258, 259, 260, 261, 262, 263, 264, 265, 265, 266, 266, 267, 267, 268, 268,</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  269, 269, 269, 269, 270, 270, 270, 270, 271, 271, 271, 271, 272, 272, 272, 272,</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  273, 273, 273, 273, 273, 273, 273, 273, 274, 274, 274, 274, 274, 274, 274, 274,</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  275, 275, 275, 275, 275, 275, 275, 275, 276, 276, 276, 276, 276, 276, 276, 276,</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277,</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278,</div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279,</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280,</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281,</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281,</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282,</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282,</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283,</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283,</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284,</div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 285};</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lengthBases[] =</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  {3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  227,258};</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> distanceBases[30] =</div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  {1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  4097,6145,8193,12289,16385,24577};</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> </div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_matchBufferEnd < m_matchBuffer.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  EncodedMatch &m = m_matchBuffer[m_matchBufferEnd++];</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>((length >= 3) && (length-3 < <a class="code" href="misc_8h.html#a2d7e4464ea73d6393ebe78f952253426">COUNTOF</a>(lengthCodes)));</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lengthCode = lengthCodes[length-3];</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  m.literalCode = lengthCode;</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  m.literalExtra = length - lengthBases[lengthCode-257];</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> distanceCode = (<span class="keywordtype">unsigned</span> int)(std::upper_bound(distanceBases, distanceBases+30, distance) - distanceBases - 1);</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  m.distanceCode = distanceCode;</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  m.distanceExtra = distance - distanceBases[distanceCode];</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span> </div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  m_literalCounts[lengthCode]++;</div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  m_distanceCounts[distanceCode]++;</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  m_blockLength += length;</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span> }</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CodeLengthEncode(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *begin,</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *end,</div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *& p,</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &extraBits,</div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &extraBitsLength)</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> {</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> v = *p;</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keywordflow">if</span> ((end-p) >= 3)</div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  {</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *oldp = p;</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keywordflow">if</span> (v==0 && p[1]==0 && p[2]==0)</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  {</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordflow">for</span> (p=p+3; p!=end && *p==0 && p!=oldp+138; p++) {}</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> repeat = (<span class="keywordtype">unsigned</span> int)(p - oldp);</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keywordflow">if</span> (repeat <= 10)</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  {</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  extraBits = repeat-3;</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  extraBitsLength = 3;</div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordflow">return</span> 17;</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  }</div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  {</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  extraBits = repeat-11;</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  extraBitsLength = 7;</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">return</span> 18;</div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  }</div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  }</div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (p!=begin && v==p[-1] && v==p[1] && v==p[2])</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  {</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordflow">for</span> (p=p+3; p!=end && *p==v && p!=oldp+6; p++) {}</div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> repeat = (<span class="keywordtype">unsigned</span> int)(p - oldp);</div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  extraBits = repeat-3;</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  extraBitsLength = 2;</div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keywordflow">return</span> 16;</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  }</div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  }</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  p++;</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  extraBits = 0;</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  extraBitsLength = 0;</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <span class="keywordflow">return</span> v;</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span> }</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span> </div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="keywordtype">void</span> Deflator::EncodeBlock(<span class="keywordtype">bool</span> eof, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> blockType)</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span> {</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  PutBits(eof, 1);</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  PutBits(blockType, 2);</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> </div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="keywordflow">if</span> (blockType == STORED)</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  {</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_blockStart + m_blockLength <= m_byteBuffer.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_blockLength <= 0xffff);</div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  FlushBitBuffer();</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#a92c60616792d7bce5cd41eaffbd1c3cc">PutWord16</a>(word16(m_blockLength), <a class="code" href="cryptlib_8h.html#aaeb92d42f5a6e27b8ba19f18d69d142baccd5b3585bd07d6bdae383aa8271b9d2">LITTLE_ENDIAN_ORDER</a>);</div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#a92c60616792d7bce5cd41eaffbd1c3cc">PutWord16</a>(word16(~m_blockLength), <a class="code" href="cryptlib_8h.html#aaeb92d42f5a6e27b8ba19f18d69d142baccd5b3585bd07d6bdae383aa8271b9d2">LITTLE_ENDIAN_ORDER</a>);</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <a class="code" href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">AttachedTransformation</a>()-><a class="code" href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede">Put</a>(m_byteBuffer + m_blockStart, m_blockLength);</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  }</div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  {</div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keywordflow">if</span> (blockType == DYNAMIC)</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  {</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<unsigned int, 286></a> literalCodeLengths;</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<unsigned int, 30></a> distanceCodeLengths;</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> </div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  m_literalCounts[256] = 1;</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  HuffmanEncoder::GenerateCodeLengths(literalCodeLengths, 15, m_literalCounts, 286);</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  m_dynamicLiteralEncoder.<a class="code" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">Initialize</a>(literalCodeLengths, 286);</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hlit = (<span class="keywordtype">unsigned</span> int)(<a class="code" href="misc_8h.html#ab29e4cf4553b1ff9f884df223a2abd6a">FindIfNot</a>(RevIt(literalCodeLengths.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>()), RevIt(literalCodeLengths.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>()+257), 0).base() - (literalCodeLengths.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>()+257));</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> </div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  HuffmanEncoder::GenerateCodeLengths(distanceCodeLengths, 15, m_distanceCounts, 30);</div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  m_dynamicDistanceEncoder.<a class="code" href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">Initialize</a>(distanceCodeLengths, 30);</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hdist = (<span class="keywordtype">unsigned</span> int)(<a class="code" href="misc_8h.html#ab29e4cf4553b1ff9f884df223a2abd6a">FindIfNot</a>(RevIt(distanceCodeLengths.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>()), RevIt(distanceCodeLengths.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>()+1), 0).base() - (distanceCodeLengths.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>()+1));</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <a class="code" href="class_sec_block_with_hint.html">SecBlockWithHint<unsigned int, 286+30></a> combinedLengths(hlit+257+hdist+1);</div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  memcpy(combinedLengths, literalCodeLengths, (hlit+257)*<span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>));</div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  memcpy(combinedLengths+hlit+257, distanceCodeLengths, (hdist+1)*<span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>));</div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span> </div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<unsigned int, 19></a> codeLengthCodeCounts, codeLengthCodeLengths;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  std::fill(codeLengthCodeCounts.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), codeLengthCodeCounts.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), 0);</div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *p = combinedLengths.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), *begin = combinedLengths.begin(), *end = combinedLengths.end();</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keywordflow">while</span> (p != end)</div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  {</div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> code=0, extraBits=0, extraBitsLength=0;</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  code = CodeLengthEncode(begin, end, p, extraBits, extraBitsLength);</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  codeLengthCodeCounts[code]++;</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  }</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  HuffmanEncoder::GenerateCodeLengths(codeLengthCodeLengths, 7, codeLengthCodeCounts, 19);</div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <a class="code" href="class_huffman_encoder.html">HuffmanEncoder</a> codeLengthEncoder(codeLengthCodeLengths, 19);</div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> border[] = { <span class="comment">// Order of the bit length code lengths</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};</div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hclen = 19;</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="keywordflow">while</span> (hclen > 4 && codeLengthCodeLengths[border[hclen-1]] == 0)</div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  hclen--;</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  hclen -= 4;</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span> </div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  PutBits(hlit, 5);</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  PutBits(hdist, 5);</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  PutBits(hclen, 4);</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span> </div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<hclen+4; i++)</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  PutBits(codeLengthCodeLengths[border[i]], 3);</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span> </div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  p = combinedLengths.begin();</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <span class="keywordflow">while</span> (p != end)</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  {</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> code=0, extraBits=0, extraBitsLength=0;</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  code = CodeLengthEncode(begin, end, p, extraBits, extraBitsLength);</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  codeLengthEncoder.Encode(*<span class="keyword">this</span>, code);</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  PutBits(extraBits, extraBitsLength);</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  }</div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  }</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span> </div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lengthExtraBits[] = {</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> distanceExtraBits[] = {</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  7, 7, 8, 8, 9, 9, 10, 10, 11, 11,</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  12, 12, 13, 13};</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span> </div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="keyword">const</span> <a class="code" href="class_huffman_encoder.html">HuffmanEncoder</a> &literalEncoder = (blockType == STATIC) ? m_staticLiteralEncoder : m_dynamicLiteralEncoder;</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="keyword">const</span> <a class="code" href="class_huffman_encoder.html">HuffmanEncoder</a> &distanceEncoder = (blockType == STATIC) ? m_staticDistanceEncoder : m_dynamicDistanceEncoder;</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span> </div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<m_matchBufferEnd; i++)</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  {</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> literalCode = m_matchBuffer[i].literalCode;</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  literalEncoder.Encode(*<span class="keyword">this</span>, literalCode);</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keywordflow">if</span> (literalCode >= 257)</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  {</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(literalCode <= 285);</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  PutBits(m_matchBuffer[i].literalExtra, lengthExtraBits[literalCode-257]);</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> distanceCode = m_matchBuffer[i].distanceCode;</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  distanceEncoder.Encode(*<span class="keyword">this</span>, distanceCode);</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  PutBits(m_matchBuffer[i].distanceExtra, distanceExtraBits[distanceCode]);</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  }</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  }</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  literalEncoder.Encode(*<span class="keyword">this</span>, 256); <span class="comment">// end of block</span></div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  }</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span> }</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span> </div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span> <span class="keywordtype">void</span> Deflator::EndBlock(<span class="keywordtype">bool</span> eof)</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> {</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="keywordflow">if</span> (m_blockLength == 0 && !eof)</div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span> </div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="keywordflow">if</span> (m_deflateLevel == 0)</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  {</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  EncodeBlock(eof, STORED);</div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span> </div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="keywordflow">if</span> (m_compressibleDeflateLevel > 0 && ++m_detectCount == m_detectSkip)</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  {</div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  m_deflateLevel = m_compressibleDeflateLevel;</div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  m_detectCount = 1;</div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  }</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  }</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  {</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> storedLen = 8*((<span class="keywordtype">unsigned</span> long)m_blockLength+4) + <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(m_bitsBuffered+3, 8U)-m_bitsBuffered;</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span> </div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  StartCounting();</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  EncodeBlock(eof, STATIC);</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> staticLen = FinishCounting();</div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span> </div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> dynamicLen;</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="keywordflow">if</span> (m_blockLength < 128 && m_deflateLevel < 8)</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  dynamicLen = ULONG_MAX;</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  {</div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  StartCounting();</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  EncodeBlock(eof, DYNAMIC);</div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  dynamicLen = FinishCounting();</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  }</div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span> </div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="keywordflow">if</span> (storedLen <= staticLen && storedLen <= dynamicLen)</div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  {</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  EncodeBlock(eof, STORED);</div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span> </div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="keywordflow">if</span> (m_compressibleDeflateLevel > 0)</div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  {</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="keywordflow">if</span> (m_detectSkip)</div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  m_deflateLevel = 0;</div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  m_detectSkip = m_detectSkip ? <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(2*m_detectSkip, 128U) : 1;</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  }</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  }</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  {</div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keywordflow">if</span> (staticLen <= dynamicLen)</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  EncodeBlock(eof, STATIC);</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  EncodeBlock(eof, DYNAMIC);</div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span> </div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="keywordflow">if</span> (m_compressibleDeflateLevel > 0)</div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  m_detectSkip = 0;</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  }</div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  }</div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span> </div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  m_matchBufferEnd = 0;</div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  m_blockStart += m_blockLength;</div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  m_blockLength = 0;</div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  std::fill(m_literalCounts.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), m_literalCounts.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), 0);</div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  std::fill(m_distanceCounts.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), m_distanceCounts.<a class="code" href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">end</a>(), 0);</div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span> }</div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span> </div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span> NAMESPACE_END</div><div class="ttc" id="class_name_value_pairs_html_a7ddb654b7afcd1a04422a7b4b01366d9"><div class="ttname"><a href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">NameValuePairs::GetIntValueWithDefault</a></div><div class="ttdeci">int GetIntValueWithDefault(const char *name, int defaultValue) const</div><div class="ttdoc">Get a named value with type int, with default. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00392">cryptlib.h:392</a></div></div>
<div class="ttc" id="class_sec_block_html_a26d88ba73b5da0f5dd4ab87ce6345d8f"><div class="ttname"><a href="class_sec_block.html#a26d88ba73b5da0f5dd4ab87ce6345d8f">SecBlock::end</a></div><div class="ttdeci">iterator end()</div><div class="ttdoc">Provides an iterator pointing beyond the last element in the memory block. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00544">secblock.h:544</a></div></div>
<div class="ttc" id="misc_8h_html_ab29e4cf4553b1ff9f884df223a2abd6a"><div class="ttname"><a href="misc_8h.html#ab29e4cf4553b1ff9f884df223a2abd6a">FindIfNot</a></div><div class="ttdeci">InputIt FindIfNot(InputIt first, InputIt last, const T &value)</div><div class="ttdoc">Finds first element not in a range. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l02540">misc.h:2540</a></div></div>
<div class="ttc" id="class_deflator_html_aac6abb58c77248380bcf0933bc2c4797a81ef097154334c9425cc13d1da4b5e82"><div class="ttname"><a href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797a81ef097154334c9425cc13d1da4b5e82">Deflator::MIN_DEFLATE_LEVEL</a></div><div class="ttdoc">Minimum deflation level, fastest speed (0) </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00081">zdeflate.h:81</a></div></div>
<div class="ttc" id="class_invalid_argument_html"><div class="ttname"><a href="class_invalid_argument.html">InvalidArgument</a></div><div class="ttdoc">An invalid argument was detected. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00199">cryptlib.h:199</a></div></div>
<div class="ttc" id="class_sec_block_with_hint_html"><div class="ttname"><a href="class_sec_block_with_hint.html">SecBlockWithHint</a></div><div class="ttdoc">Stack-based SecBlock that grows into the heap. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00862">secblock.h:862</a></div></div>
<div class="ttc" id="misc_8h_html"><div class="ttname"><a href="misc_8h.html">misc.h</a></div><div class="ttdoc">Utility functions for the Crypto++ library. </div></div>
<div class="ttc" id="class_deflator_html_a5d1d2b1a7c83fa2b2ebb2adeb646d4baadc9d5f12cda39d4a4303af54e21a65c8"><div class="ttname"><a href="class_deflator.html#a5d1d2b1a7c83fa2b2ebb2adeb646d4baadc9d5f12cda39d4a4303af54e21a65c8">Deflator::MIN_LOG2_WINDOW_SIZE</a></div><div class="ttdoc">Minimum window size, smallest table (9) </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00090">zdeflate.h:90</a></div></div>
<div class="ttc" id="class_name_value_pairs_html_a4daf1ef67b547c6be96188a43e5ec05e"><div class="ttname"><a href="class_name_value_pairs.html#a4daf1ef67b547c6be96188a43e5ec05e">NameValuePairs::GetValueWithDefault</a></div><div class="ttdeci">T GetValueWithDefault(const char *name, T defaultValue) const</div><div class="ttdoc">Get a named value. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00360">cryptlib.h:360</a></div></div>
<div class="ttc" id="class_deflator_html_aac6abb58c77248380bcf0933bc2c4797ad15dc39a3f833cce997c3cade5f556ca"><div class="ttname"><a href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797ad15dc39a3f833cce997c3cade5f556ca">Deflator::MAX_DEFLATE_LEVEL</a></div><div class="ttdoc">Minimum deflation level, slowest speed (9) </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00085">zdeflate.h:85</a></div></div>
<div class="ttc" id="class_low_first_bit_writer_html"><div class="ttname"><a href="class_low_first_bit_writer.html">LowFirstBitWriter</a></div><div class="ttdoc">Encoding table writer. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00017">zdeflate.h:17</a></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="class_sec_block_html_a90d46e577c951d81a2d25a4742a3e979"><div class="ttname"><a href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">SecBlock::New</a></div><div class="ttdeci">void New(size_type newSize)</div><div class="ttdoc">Change size without preserving contents. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00729">secblock.h:729</a></div></div>
<div class="ttc" id="class_deflator_html_a4337716743ff155dc5321843eda29d00"><div class="ttname"><a href="class_deflator.html#a4337716743ff155dc5321843eda29d00">Deflator::IsolatedFlush</a></div><div class="ttdeci">bool IsolatedFlush(bool hardFlush, bool blocking)</div><div class="ttdoc">Flushes data buffered by this object, without signal propagation. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00545">zdeflate.cpp:545</a></div></div>
<div class="ttc" id="class_buffered_transformation_html"><div class="ttname"><a href="class_buffered_transformation.html">BufferedTransformation</a></div><div class="ttdoc">Interface for buffered transformations. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01545">cryptlib.h:1545</a></div></div>
<div class="ttc" id="zdeflate_8h_html"><div class="ttname"><a href="zdeflate_8h.html">zdeflate.h</a></div><div class="ttdoc">DEFLATE compression and decompression (RFC 1951) </div></div>
<div class="ttc" id="misc_8h_html_a1746e70bf831f0cbf8ad73d8c15bc921"><div class="ttname"><a href="misc_8h.html#a1746e70bf831f0cbf8ad73d8c15bc921">BitReverse</a></div><div class="ttdeci">byte BitReverse(byte value)</div><div class="ttdoc">Reverses bits in a 8-bit value. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l01905">misc.h:1905</a></div></div>
<div class="ttc" id="class_deflator_html_a5d1d2b1a7c83fa2b2ebb2adeb646d4baa2ad5ee7b41a04c975a32e721641754d8"><div class="ttname"><a href="class_deflator.html#a5d1d2b1a7c83fa2b2ebb2adeb646d4baa2ad5ee7b41a04c975a32e721641754d8">Deflator::MAX_LOG2_WINDOW_SIZE</a></div><div class="ttdoc">Maximum window size, largest table (15) </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00094">zdeflate.h:94</a></div></div>
<div class="ttc" id="cryptlib_8h_html_aaeb92d42f5a6e27b8ba19f18d69d142baccd5b3585bd07d6bdae383aa8271b9d2"><div class="ttname"><a href="cryptlib_8h.html#aaeb92d42f5a6e27b8ba19f18d69d142baccd5b3585bd07d6bdae383aa8271b9d2">LITTLE_ENDIAN_ORDER</a></div><div class="ttdoc">byte order is little-endian </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00142">cryptlib.h:142</a></div></div>
<div class="ttc" id="class_buffered_transformation_html_ae15df84a7b67c25dfe2ce0ef5a74123c"><div class="ttname"><a href="class_buffered_transformation.html#ae15df84a7b67c25dfe2ce0ef5a74123c">BufferedTransformation::PutModifiable</a></div><div class="ttdeci">size_t PutModifiable(byte *inString, size_t length, bool blocking=true)</div><div class="ttdoc">Input multiple bytes that may be modified by callee. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01621">cryptlib.h:1621</a></div></div>
<div class="ttc" id="class_buffered_transformation_html_ae70658b0d271f8e114ac6c3cc9774ede"><div class="ttname"><a href="class_buffered_transformation.html#ae70658b0d271f8e114ac6c3cc9774ede">BufferedTransformation::Put</a></div><div class="ttdeci">size_t Put(byte inByte, bool blocking=true)</div><div class="ttdoc">Input a byte for processing. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01567">cryptlib.h:1567</a></div></div>
<div class="ttc" id="algparam_8h_html_aa13eee74de98cf8aaa7e83f4fae7f28b"><div class="ttname"><a href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a></div><div class="ttdeci">AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed=true)</div><div class="ttdoc">Create an object that implements NameValuePairs. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00502">algparam.h:502</a></div></div>
<div class="ttc" id="class_filter_html_ac8fc888888b2dad88bf64fc703044a93"><div class="ttname"><a href="class_filter.html#ac8fc888888b2dad88bf64fc703044a93">Filter::AttachedTransformation</a></div><div class="ttdeci">BufferedTransformation * AttachedTransformation()</div><div class="ttdoc">Retrieve attached transformation. </div><div class="ttdef"><b>Definition:</b> <a href="filters_8cpp_source.html#l00036">filters.cpp:36</a></div></div>
<div class="ttc" id="pch_8h_html"><div class="ttname"><a href="pch_8h.html">pch.h</a></div><div class="ttdoc">Precompiled header file. </div></div>
<div class="ttc" id="misc_8h_html_a30712a90999ad9d9152975f2e92d46b8"><div class="ttname"><a href="misc_8h.html#a30712a90999ad9d9152975f2e92d46b8">SaturatingSubtract</a></div><div class="ttdeci">T1 SaturatingSubtract(const T1 &a, const T2 &b)</div><div class="ttdoc">Performs a saturating subtract clamped at 0. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00890">misc.h:890</a></div></div>
<div class="ttc" id="misc_8h_html_ac8391e7d9d613a6c401787d2cdab1f51"><div class="ttname"><a href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a></div><div class="ttdeci">const T1 UnsignedMin(const T1 &a, const T2 &b)</div><div class="ttdoc">Safe comparison of values that could be neagtive and incorrectly promoted. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00546">misc.h:546</a></div></div>
<div class="ttc" id="misc_8h_html_a2d7e4464ea73d6393ebe78f952253426"><div class="ttname"><a href="misc_8h.html#a2d7e4464ea73d6393ebe78f952253426">COUNTOF</a></div><div class="ttdeci">#define COUNTOF(arr)</div><div class="ttdoc">Counts elements in an array. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00181">misc.h:181</a></div></div>
<div class="ttc" id="class_fixed_size_sec_block_html"><div class="ttname"><a href="class_fixed_size_sec_block.html">FixedSizeSecBlock< unsigned int, 286 ></a></div></div>
<div class="ttc" id="misc_8h_html_abe412b0409249cb54899e97bc7d86424"><div class="ttname"><a href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a></div><div class="ttdeci">const T & STDMIN(const T &a, const T &b)</div><div class="ttdoc">Replacement function for std::min. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00507">misc.h:507</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="class_deflator_html_aac6abb58c77248380bcf0933bc2c4797a88190923f9a4afb1e3e43daa3aaf32c9"><div class="ttname"><a href="class_deflator.html#aac6abb58c77248380bcf0933bc2c4797a88190923f9a4afb1e3e43daa3aaf32c9">Deflator::DEFAULT_DEFLATE_LEVEL</a></div><div class="ttdoc">Default deflation level, compromise between speed (6) </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00083">zdeflate.h:83</a></div></div>
<div class="ttc" id="class_huffman_encoder_html_af2b441522d45cf1e1935673e27d09b30"><div class="ttname"><a href="class_huffman_encoder.html#af2b441522d45cf1e1935673e27d09b30">HuffmanEncoder::HuffmanEncoder</a></div><div class="ttdeci">HuffmanEncoder()</div><div class="ttdoc">Construct a HuffmanEncoder. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00048">zdeflate.h:48</a></div></div>
<div class="ttc" id="class_deflator_html_a5b19de812080b7b12d0a6cc974f60b33"><div class="ttname"><a href="class_deflator.html#a5b19de812080b7b12d0a6cc974f60b33">Deflator::SetDeflateLevel</a></div><div class="ttdeci">void SetDeflateLevel(int deflateLevel)</div><div class="ttdoc">Sets the deflation level. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00310">zdeflate.cpp:310</a></div></div>
<div class="ttc" id="class_sec_block_html_a11a05906688172579cd3520816799446"><div class="ttname"><a href="class_sec_block.html#a11a05906688172579cd3520816799446">SecBlock::begin</a></div><div class="ttdeci">iterator begin()</div><div class="ttdoc">Provides an iterator pointing to the first element in the memory block. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00536">secblock.h:536</a></div></div>
<div class="ttc" id="struct_buffered_transformation_1_1_blocking_input_only_html"><div class="ttname"><a href="struct_buffered_transformation_1_1_blocking_input_only.html">BufferedTransformation::BlockingInputOnly</a></div><div class="ttdoc">Exception thrown by objects that have not implemented nonblocking input processing. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01669">cryptlib.h:1669</a></div></div>
<div class="ttc" id="class_deflator_html_aee81a8ccc99647834b079bbcb70e4027"><div class="ttname"><a href="class_deflator.html#aee81a8ccc99647834b079bbcb70e4027">Deflator::Deflator</a></div><div class="ttdeci">Deflator(BufferedTransformation *attachment=NULL, int deflateLevel=DEFAULT_DEFLATE_LEVEL, int log2WindowSize=DEFAULT_LOG2_WINDOW_SIZE, bool detectUncompressible=true)</div><div class="ttdoc">Construct a Deflator compressor. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00231">zdeflate.cpp:231</a></div></div>
<div class="ttc" id="class_low_first_bit_writer_html_a8d67445920583ea9223ee504d190a8ec"><div class="ttname"><a href="class_low_first_bit_writer.html#a8d67445920583ea9223ee504d190a8ec">LowFirstBitWriter::LowFirstBitWriter</a></div><div class="ttdeci">LowFirstBitWriter(BufferedTransformation *attachment)</div><div class="ttdoc">Construct a LowFirstBitWriter. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00024">zdeflate.cpp:24</a></div></div>
<div class="ttc" id="class_huffman_encoder_html_a58cdf24aadeaea994f01164e7dea0a3d"><div class="ttname"><a href="class_huffman_encoder.html#a58cdf24aadeaea994f01164e7dea0a3d">HuffmanEncoder::Initialize</a></div><div class="ttdeci">void Initialize(const unsigned int *codeBits, unsigned int nCodes)</div><div class="ttdoc">Initialize or reinitialize this object. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00193">zdeflate.cpp:193</a></div></div>
<div class="ttc" id="class_filter_html"><div class="ttname"><a href="class_filter.html">Filter</a></div><div class="ttdoc">Implementation of BufferedTransformation&#39;s attachment interface. </div><div class="ttdef"><b>Definition:</b> <a href="filters_8h_source.html#l00035">filters.h:35</a></div></div>
<div class="ttc" id="misc_8h_html_a6cd7decd035cc4e144cd3d395e834106"><div class="ttname"><a href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a></div><div class="ttdeci">std::string IntToString(T value, unsigned int base=10)</div><div class="ttdoc">Converts a value to a string. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00576">misc.h:576</a></div></div>
<div class="ttc" id="class_buffered_transformation_html_a92c60616792d7bce5cd41eaffbd1c3cc"><div class="ttname"><a href="class_buffered_transformation.html#a92c60616792d7bce5cd41eaffbd1c3cc">BufferedTransformation::PutWord16</a></div><div class="ttdeci">size_t PutWord16(word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)</div><div class="ttdoc">Input a 16-bit word for processing. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8cpp_source.html#l00751">cryptlib.cpp:751</a></div></div>
<div class="ttc" id="class_deflator_html_ab3ba26f52807a9b5d4af6948d56cd4a9"><div class="ttname"><a href="class_deflator.html#ab3ba26f52807a9b5d4af6948d56cd4a9">Deflator::Put2</a></div><div class="ttdeci">size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)</div><div class="ttdoc">Input multiple bytes for processing. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00515">zdeflate.cpp:515</a></div></div>
<div class="ttc" id="misc_8h_html_a57a219d44f45272a1f3b3f17a656000a"><div class="ttname"><a href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a></div><div class="ttdeci">T1 RoundUpToMultipleOf(const T1 &n, const T2 &m)</div><div class="ttdoc">Rounds a value up to a multiple of a second value. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00971">misc.h:971</a></div></div>
<div class="ttc" id="misc_8h_html_af1490597cb11989e78d5ba5b5f21266b"><div class="ttname"><a href="misc_8h.html#af1490597cb11989e78d5ba5b5f21266b">STDMAX</a></div><div class="ttdeci">const T & STDMAX(const T &a, const T &b)</div><div class="ttdoc">Replacement function for std::max. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00518">misc.h:518</a></div></div>
<div class="ttc" id="struct_huffman_node_html"><div class="ttname"><a href="struct_huffman_node.html">HuffmanNode</a></div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00099">zdeflate.cpp:99</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>
<div class="ttc" id="class_deflator_html_a5d1d2b1a7c83fa2b2ebb2adeb646d4baa255f7554f69a861bf69bf40c2ad79334"><div class="ttname"><a href="class_deflator.html#a5d1d2b1a7c83fa2b2ebb2adeb646d4baa255f7554f69a861bf69bf40c2ad79334">Deflator::DEFAULT_LOG2_WINDOW_SIZE</a></div><div class="ttdoc">Default window size (15) </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00092">zdeflate.h:92</a></div></div>
<div class="ttc" id="struct_freq_less_than_html"><div class="ttname"><a href="struct_freq_less_than.html">FreqLessThan</a></div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00111">zdeflate.cpp:111</a></div></div>
<div class="ttc" id="class_huffman_encoder_html"><div class="ttname"><a href="class_huffman_encoder.html">HuffmanEncoder</a></div><div class="ttdoc">Huffman Encoder. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8h_source.html#l00041">zdeflate.h:41</a></div></div>
<div class="ttc" id="class_deflator_html_ac9f545b8062a7e822e537364ef422111"><div class="ttname"><a href="class_deflator.html#ac9f545b8062a7e822e537364ef422111">Deflator::IsolatedInitialize</a></div><div class="ttdeci">void IsolatedInitialize(const NameValuePairs &parameters)</div><div class="ttdoc">Initialize or reinitialize this object, without signal propagation. </div><div class="ttdef"><b>Definition:</b> <a href="zdeflate_8cpp_source.html#l00259">zdeflate.cpp:259</a></div></div>
<div class="ttc" id="class_sec_block_html_af5999bffe3193e62719cc0792b0282a7"><div class="ttname"><a href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">SecBlock::size</a></div><div class="ttdeci">size_type size() const</div><div class="ttdoc">Provides the count of elements in the SecBlock. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00561">secblock.h:561</a></div></div>
<div class="ttc" id="class_name_value_pairs_html"><div class="ttname"><a href="class_name_value_pairs.html">NameValuePairs</a></div><div class="ttdoc">Interface for retrieving values given their names. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00290">cryptlib.h:290</a></div></div>
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