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<div class="title">SHAMapNodeID.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> Copyright (c) 2012, 2013 Ripple Labs Inc.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment">//==============================================================================</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/Log.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;ripple/beast/core/LexicalCast.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;ripple/crypto/csprng.h&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;ripple/shamap/SHAMapNodeID.h&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;boost/format.hpp&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cassert.html">cassert</a>&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a>&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<a class="code" href="namespaceripple.html#a356c68147333a9a48a344718038576d9">uint256</a> <span class="keyword">const</span>&amp;</div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a8f15d3c1e6e1a02466662bef6889860f"> 31</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a8f15d3c1e6e1a02466662bef6889860f">SHAMapNodeID::Masks</a>(<span class="keywordtype">int</span> depth)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;{</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <span class="keyword">enum</span> { mask_size = 65 };</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keyword">struct </span>masks_t</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <a class="code" href="classripple_1_1base__uint.html">uint256</a> entry[mask_size];</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; masks_t()</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; {</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="classripple_1_1base__uint.html">uint256</a> selector;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; mask_size - 1; i += 2)</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; entry[i] = selector;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; *(selector.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>() + (i / 2)) = 0xF0;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; entry[i + 1] = selector;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; *(selector.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>() + (i / 2)) = 0xFF;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; entry[mask_size - 1] = selector;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; }</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; };</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">static</span> masks_t <span class="keyword">const</span> masks;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">return</span> masks.entry[depth];</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;}</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment">// canonicalize the hash to a node ID for this depth</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a2cb821744e33b6a0d76516178c7ec961"> 57</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a532bb6d3ec90b83f27bca278d79f9c64">SHAMapNodeID::SHAMapNodeID</a>(<span class="keywordtype">int</span> depth, <a class="code" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; hash)</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; : mNodeID(hash), mDepth(depth)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;{</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; assert((depth &gt;= 0) &amp;&amp; (depth &lt; 65));</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; assert(<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a> == (<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a> &amp; <a class="code" href="classripple_1_1SHAMapNodeID.html#a8f15d3c1e6e1a02466662bef6889860f">Masks</a>(depth)));</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;}</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; </div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a994ad49d3bcb1a1ed28a1179187700d9"> 64</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a532bb6d3ec90b83f27bca278d79f9c64">SHAMapNodeID::SHAMapNodeID</a>(<span class="keywordtype">void</span> <span class="keyword">const</span>* ptr, <span class="keywordtype">int</span> len)</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;{</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordflow">if</span> (len &lt; 33)</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> = -1;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/byte/memcpy.html">std::memcpy</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>(), ptr, 32);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> = *(<span class="keyword">static_cast&lt;</span><span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> const*<span class="keyword">&gt;</span>(ptr) + 32);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; }</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;}</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a830f739e1b146fa29358a8805b0d942b"> 76</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a830f739e1b146fa29358a8805b0d942b">SHAMapNodeID::getString</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">if</span> ((<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> == 0) &amp;&amp; (<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>.<a class="code" href="classripple_1_1base__uint.html#a6fd7dba1ad932f4c1246c9a090c145e5">isZero</a>()))</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordflow">return</span> <span class="stringliteral">&quot;NodeID(root)&quot;</span>;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> <span class="stringliteral">&quot;NodeID(&quot;</span> + <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a>) + <span class="stringliteral">&quot;,&quot;</span> + <a class="code" href="namespaceripple.html#a96888695e8d79474e080c334f149e30a">to_string</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>) + <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;}</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a771717862f64db6f5ae7c9c432b588c2"> 85</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a771717862f64db6f5ae7c9c432b588c2">SHAMapNodeID::addIDRaw</a>(<a class="code" href="classripple_1_1Serializer.html">Serializer</a>&amp; s)<span class="keyword"> const</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; s.<a class="code" href="classripple_1_1Serializer.html#a96daec54ca0c8ec7f6e7e683e9abbe0e">addBitString</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; s.<a class="code" href="classripple_1_1Serializer.html#ab6de064efbc9b2efaeff2b069a02b644">add8</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a>);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;}</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a60517c4d78ae36f53c01b84865d5ba7e"> 92</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a60517c4d78ae36f53c01b84865d5ba7e">SHAMapNodeID::getRawString</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <a class="code" href="classripple_1_1Serializer.html">Serializer</a> s(33);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <a class="code" href="classripple_1_1SHAMapNodeID.html#a771717862f64db6f5ae7c9c432b588c2">addIDRaw</a>(s);</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">return</span> s.<a class="code" href="classripple_1_1Serializer.html#afb9f001046e4767db6780bbee86d93c3">getString</a>();</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;}</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;<span class="comment">// This can be optimized to avoid the &lt;&lt; if needed</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html">SHAMapNodeID</a></div>
<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a2562d5ab2eaf9cacfec84caa41590e99"> 101</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a2562d5ab2eaf9cacfec84caa41590e99">SHAMapNodeID::getChildNodeID</a>(<span class="keywordtype">int</span> m)<span class="keyword"> const</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; assert((m &gt;= 0) &amp;&amp; (m &lt; 16));</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; assert(<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> &lt; 64);</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <a class="code" href="classripple_1_1base__uint.html">uint256</a> child(<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; child.begin()[<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> / 2] |= (<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> &amp; 1) ? m : (m &lt;&lt; 4);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1SHAMapNodeID.html#a532bb6d3ec90b83f27bca278d79f9c64">SHAMapNodeID</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> + 1, child);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;}</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;<span class="comment">// Which branch would contain the specified hash</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;<span class="keywordtype">int</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a7a838e3981af9efdf9054659942ff5e4"> 114</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a7a838e3981af9efdf9054659942ff5e4">SHAMapNodeID::selectBranch</a>(<a class="code" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; hash)<span class="keyword"> const</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordtype">int</span> branch = *(hash.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>() + (<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> / 2));</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> &amp; 1)</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; branch &amp;= 0xf;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; branch &gt;&gt;= 4;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; assert((branch &gt;= 0) &amp;&amp; (branch &lt; 16));</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">return</span> branch;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;}</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;<span class="keywordtype">bool</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a482287144b5026ee61da57ee38336e0a"> 129</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a482287144b5026ee61da57ee38336e0a">SHAMapNodeID::has_common_prefix</a>(<a class="code" href="classripple_1_1SHAMapNodeID.html">SHAMapNodeID</a> <span class="keyword">const</span>&amp; other)<span class="keyword"> const</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; assert(<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> &lt;= other.<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a>);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keyword">auto</span> x = <a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>();</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keyword">auto</span> y = other.<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>();</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i &lt; <a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> / 2; ++i, ++x, ++y)</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; {</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">if</span> (*x != *y)</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; }</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> &amp; 1)</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keyword">auto</span> i = <a class="code" href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">mDepth</a> / 2;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="keywordflow">return</span> (*(<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>() + i) &amp; 0xF0) ==</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; (*(other.<a class="code" href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">mNodeID</a>.<a class="code" href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">begin</a>() + i) &amp; 0xF0);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;}</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="classripple_1_1SHAMapNodeID.html#a2c4c60b1e039a31aba383ae0b521b925"> 149</a></span>&#160;<a class="code" href="classripple_1_1SHAMapNodeID.html#a2c4c60b1e039a31aba383ae0b521b925">SHAMapNodeID::dump</a>(<a class="code" href="classbeast_1_1Journal.html">beast::Journal</a> journal)<span class="keyword"> const</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; JLOG(journal.<a class="code" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) &lt;&lt; <a class="code" href="classripple_1_1SHAMapNodeID.html#a830f739e1b146fa29358a8805b0d942b">getString</a>();</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;}</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;} <span class="comment">// namespace ripple</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a7a838e3981af9efdf9054659942ff5e4"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a7a838e3981af9efdf9054659942ff5e4">ripple::SHAMapNodeID::selectBranch</a></div><div class="ttdeci">int selectBranch(uint256 const &amp;hash) const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00114">SHAMapNodeID.cpp:114</a></div></div>
<div class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div><div class="ttdoc">STL class.</div></div>
<div class="ttc" id="acstring_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a2562d5ab2eaf9cacfec84caa41590e99"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a2562d5ab2eaf9cacfec84caa41590e99">ripple::SHAMapNodeID::getChildNodeID</a></div><div class="ttdeci">SHAMapNodeID getChildNodeID(int m) const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00101">SHAMapNodeID.cpp:101</a></div></div>
<div class="ttc" id="aclassripple_1_1Serializer_html_afb9f001046e4767db6780bbee86d93c3"><div class="ttname"><a href="classripple_1_1Serializer.html#afb9f001046e4767db6780bbee86d93c3">ripple::Serializer::getString</a></div><div class="ttdeci">std::string getString() const</div><div class="ttdef"><b>Definition:</b> <a href="Serializer_8h_source.html#l00202">Serializer.h:202</a></div></div>
<div class="ttc" id="aclassripple_1_1Serializer_html_ab6de064efbc9b2efaeff2b069a02b644"><div class="ttname"><a href="classripple_1_1Serializer.html#ab6de064efbc9b2efaeff2b069a02b644">ripple::Serializer::add8</a></div><div class="ttdeci">int add8(unsigned char i)</div><div class="ttdef"><b>Definition:</b> <a href="Serializer_8cpp_source.html#l00158">Serializer.cpp:158</a></div></div>
<div class="ttc" id="anamespaceripple_html_a96888695e8d79474e080c334f149e30a"><div class="ttname"><a href="namespaceripple.html#a96888695e8d79474e080c334f149e30a">ripple::to_string</a></div><div class="ttdeci">std::string to_string(ListDisposition disposition)</div><div class="ttdef"><b>Definition:</b> <a href="ValidatorList_8cpp_source.html#l00041">ValidatorList.cpp:41</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html">ripple::SHAMapNodeID</a></div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8h_source.html#l00033">SHAMapNodeID.h:33</a></div></div>
<div class="ttc" id="anamespaceripple_html_a356c68147333a9a48a344718038576d9"><div class="ttname"><a href="namespaceripple.html#a356c68147333a9a48a344718038576d9">ripple::uint256</a></div><div class="ttdeci">base_uint&lt; 256 &gt; uint256</div><div class="ttdef"><b>Definition:</b> <a href="base__uint_8h_source.html#l00493">base_uint.h:493</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html"><div class="ttname"><a href="classripple_1_1base__uint.html">ripple::base_uint&lt; 256 &gt;</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_aeafd89cda4c7fa6f611e580bf0c76ba5"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#aeafd89cda4c7fa6f611e580bf0c76ba5">ripple::SHAMapNodeID::mDepth</a></div><div class="ttdeci">int mDepth</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8h_source.html#l00037">SHAMapNodeID.h:37</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html_a6fd7dba1ad932f4c1246c9a090c145e5"><div class="ttname"><a href="classripple_1_1base__uint.html#a6fd7dba1ad932f4c1246c9a090c145e5">ripple::base_uint::isZero</a></div><div class="ttdeci">bool isZero() const</div><div class="ttdef"><b>Definition:</b> <a href="base__uint_8h_source.html#l00475">base_uint.h:475</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a60517c4d78ae36f53c01b84865d5ba7e"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a60517c4d78ae36f53c01b84865d5ba7e">ripple::SHAMapNodeID::getRawString</a></div><div class="ttdeci">std::string getRawString() const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00092">SHAMapNodeID.cpp:92</a></div></div>
<div class="ttc" id="ato_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a></div><div class="ttdeci">T to_string(T... args)</div></div>
<div class="ttc" id="aclassbeast_1_1Journal_html"><div class="ttname"><a href="classbeast_1_1Journal.html">beast::Journal</a></div><div class="ttdoc">A generic endpoint for log messages.</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00058">Journal.h:58</a></div></div>
<div class="ttc" id="aclassripple_1_1Serializer_html"><div class="ttname"><a href="classripple_1_1Serializer.html">ripple::Serializer</a></div><div class="ttdef"><b>Definition:</b> <a href="Serializer_8h_source.html#l00039">Serializer.h:39</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a771717862f64db6f5ae7c9c432b588c2"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a771717862f64db6f5ae7c9c432b588c2">ripple::SHAMapNodeID::addIDRaw</a></div><div class="ttdeci">void addIDRaw(Serializer &amp;s) const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00085">SHAMapNodeID.cpp:85</a></div></div>
<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
<div class="ttc" id="aclassripple_1_1Serializer_html_a96daec54ca0c8ec7f6e7e683e9abbe0e"><div class="ttname"><a href="classripple_1_1Serializer.html#a96daec54ca0c8ec7f6e7e683e9abbe0e">ripple::Serializer::addBitString</a></div><div class="ttdeci">int addBitString(base_uint&lt; Bits, Tag &gt; const &amp;v)</div><div class="ttdef"><b>Definition:</b> <a href="Serializer_8h_source.html#l00097">Serializer.h:97</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html_a2ffd09234d574e5554c5d84199a9f287"><div class="ttname"><a href="classripple_1_1base__uint.html#a2ffd09234d574e5554c5d84199a9f287">ripple::base_uint::begin</a></div><div class="ttdeci">iterator begin()</div><div class="ttdef"><b>Definition:</b> <a href="base__uint_8h_source.html#l00114">base_uint.h:114</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a532bb6d3ec90b83f27bca278d79f9c64"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a532bb6d3ec90b83f27bca278d79f9c64">ripple::SHAMapNodeID::SHAMapNodeID</a></div><div class="ttdeci">SHAMapNodeID()</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8h_source.html#l00101">SHAMapNodeID.h:101</a></div></div>
<div class="ttc" id="acassert_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cassert.html">cassert</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a830f739e1b146fa29358a8805b0d942b"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a830f739e1b146fa29358a8805b0d942b">ripple::SHAMapNodeID::getString</a></div><div class="ttdeci">std::string getString() const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00076">SHAMapNodeID.cpp:76</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a8f15d3c1e6e1a02466662bef6889860f"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a8f15d3c1e6e1a02466662bef6889860f">ripple::SHAMapNodeID::Masks</a></div><div class="ttdeci">static uint256 const &amp; Masks(int depth)</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00031">SHAMapNodeID.cpp:31</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a832b1fdcce1d16cb6c01b2098b37007b"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a832b1fdcce1d16cb6c01b2098b37007b">ripple::SHAMapNodeID::mNodeID</a></div><div class="ttdeci">uint256 mNodeID</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8h_source.html#l00036">SHAMapNodeID.h:36</a></div></div>
<div class="ttc" id="aclassbeast_1_1Journal_html_a556228cb60bcf405c225d3f64b7b01ae"><div class="ttname"><a href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">beast::Journal::debug</a></div><div class="ttdeci">Stream debug() const</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00315">Journal.h:315</a></div></div>
<div class="ttc" id="amemcpy_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/byte/memcpy.html">std::memcpy</a></div><div class="ttdeci">T memcpy(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a2c4c60b1e039a31aba383ae0b521b925"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a2c4c60b1e039a31aba383ae0b521b925">ripple::SHAMapNodeID::dump</a></div><div class="ttdeci">void dump(beast::Journal journal) const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00149">SHAMapNodeID.cpp:149</a></div></div>
<div class="ttc" id="aclassripple_1_1SHAMapNodeID_html_a482287144b5026ee61da57ee38336e0a"><div class="ttname"><a href="classripple_1_1SHAMapNodeID.html#a482287144b5026ee61da57ee38336e0a">ripple::SHAMapNodeID::has_common_prefix</a></div><div class="ttdeci">bool has_common_prefix(SHAMapNodeID const &amp;other) const</div><div class="ttdef"><b>Definition:</b> <a href="SHAMapNodeID_8cpp_source.html#l00129">SHAMapNodeID.cpp:129</a></div></div>
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