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<li class="navelem"><a class="el" href="dir_df9c78dcf3f59a33b12284f95992a64b.html">ripple</a></li><li class="navelem"><a class="el" href="dir_f4afb74df24474efa0cc7e8ea3ddd5ce.html">rpc</a></li><li class="navelem"><a class="el" href="dir_72652aacd0eb4ee32af795650dd02b37.html">handlers</a></li> </ul>
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<div class="title">GetAggregatePrice.cpp</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//------------------------------------------------------------------------------</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (c) 2023 Ripple Labs Inc.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <ripple/app/ledger/LedgerMaster.h></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <ripple/app/main/Application.h></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <ripple/json/json_value.h></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <ripple/ledger/ReadView.h></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <ripple/protocol/ErrorCodes.h></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <ripple/protocol/jss.h></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <ripple/rpc/Context.h></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <ripple/rpc/impl/RPCHelpers.h></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <boost/bimap.hpp></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <boost/bimap/multiset_of.hpp></span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">using namespace </span>boost::bimaps;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// sorted descending by lastUpdateTime, ascending by AssetPrice</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">using</span> <a class="code" href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff">Prices</a> = bimap<</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  multiset_of<std::uint32_t, std::greater<std::uint32_t>>,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff"> 38</a></span>  multiset_of<STAmount>>;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2"> 44</a></span> <a class="code" href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2">iteratePriceData</a>(</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="structripple_1_1RPC_1_1JsonContext.html">RPC::JsonContext</a>& context,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr<SLE const></a> <span class="keyword">const</span>& sle,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a><<span class="keywordtype">bool</span>(<a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>&)>&& f)</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">using</span> Meta = <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr<STObject const></a>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  constexpr <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> maxHistory = 3;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> isNew = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> history = 0;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// `oracle` points to an object that has an `sfPriceDataSeries` field.</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// When this function is called, that is a `PriceOracle` ledger object,</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// but after one iteration of the loop below, it is an `sfNewFields`</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// / `sfFinalFields` object in a `CreatedNode` / `ModifiedNode` object in</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// a transaction's metadata.</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// `chain` points to an object that has `sfPreviousTxnID` and</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// `sfPreviousTxnLgrSeq` fields. When this function is called,</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// that is the `PriceOracle` ledger object pointed to by `oracle`,</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// but after one iteration of the loop below, then it is a `ModifiedNode`</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// / `CreatedNode` object in a transaction's metadata.</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>* oracle = sle.<a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr/get.html">get</a>();</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>* chain = oracle;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// Use to test an unlikely scenario when CreatedNode / ModifiedNode</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// for the Oracle is not found in the inner loop</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>* prevChain = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  Meta meta = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  {</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (prevChain == chain)</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (!oracle || f(*oracle) || isNew)</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (++history > maxHistory)</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="classripple_1_1base__uint.html">uint256</a> prevTx = chain-><a class="code" href="classripple_1_1STObject.html#af89b6c7fd94c998549037d0c44a068a1">getFieldH256</a>(<a class="code" href="namespaceripple.html#a4b1306a6f4ca4fe6b292c8557bc60849">sfPreviousTxnID</a>);</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> prevSeq = chain-><a class="code" href="classripple_1_1STObject.html#a55d1b6946f96a770f3b2195eb5a5a943">getFieldU32</a>(<a class="code" href="namespaceripple.html#a735d480bdbcfa9135a2e6cf5944fea50">sfPreviousTxnLgrSeq</a>);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">auto</span> <span class="keyword">const</span> ledger = context.<a class="code" href="structripple_1_1RPC_1_1Context.html#a92c98828663b6b80d3eb15850ec6897a">ledgerMaster</a>.<a class="code" href="classripple_1_1LedgerMaster.html#adb95579405e9ad8d61239ffa23b1fb22">getLedgerBySeq</a>(prevSeq);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (!ledger)</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  meta = ledger->txRead(prevTx).second;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">for</span> (<a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>& node : meta-><a class="code" href="classripple_1_1STObject.html#a26fe74d797620b2d08d06d50527380e1">getFieldArray</a>(<a class="code" href="namespaceripple.html#ac44e511c280240e9cefbd305de4640ec">sfAffectedNodes</a>))</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  {</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> (node.getFieldU16(<a class="code" href="namespaceripple.html#a95e082491139cffc65c01b6fcaa3edfe">sfLedgerEntryType</a>) != <a class="code" href="namespaceripple.html#ac151bf19e1f4daae2b04c65c65117139aeb2a33f9f6c9dc8395f8f1048576610b">ltORACLE</a>)</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  {</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  prevChain = chain;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  chain = &node;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  isNew = node.<a class="code" href="classripple_1_1STObject.html#aaf5d617701ac3afc4ad6a13862459692">isFieldPresent</a>(<a class="code" href="namespaceripple.html#a737786376eaaa852f53f51d2463135f9">sfNewFields</a>);</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// if a meta is for the new and this is the first</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// look-up then it's the meta for the tx that</span></div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// created the current object; i.e. there is no</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// historical data</span></div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (isNew && history == 1)</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  oracle = isNew</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  ? &<span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="classripple_1_1STObject.html">STObject</a>&<span class="keyword">></span>(node.peekAtField(<a class="code" href="namespaceripple.html#a737786376eaaa852f53f51d2463135f9">sfNewFields</a>))</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  : &<span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="classripple_1_1STObject.html">STObject</a>&<span class="keyword">></span>(</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  node.peekAtField(<a class="code" href="namespaceripple.html#ae6962034c5c2db38335513cae7086781">sfFinalFields</a>));</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> }</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  </div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// Return avg, sd, data set size</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">static</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/tuple.html">std::tuple<STAmount, Number, std::uint16_t></a></div>
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<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="namespaceripple.html#a457bfc9c35fae401715c2eec92911de9"> 120</a></span> <a class="code" href="namespaceripple.html#a457bfc9c35fae401715c2eec92911de9">getStats</a>(</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  Prices::right_const_iterator <span class="keyword">const</span>& begin,</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  Prices::right_const_iterator <span class="keyword">const</span>& end)</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> {</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="classripple_1_1STAmount.html">STAmount</a> avg{<a class="code" href="namespaceripple.html#a6a13d9debf90470b562dbc1e70a5b02e">noIssue</a>(), 0, 0};</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="classripple_1_1Number.html">Number</a> sd{0};</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> size = <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(begin, end);</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  avg = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/accumulate.html">std::accumulate</a>(</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  begin, end, avg, [&](<a class="code" href="classripple_1_1STAmount.html">STAmount</a> <span class="keyword">const</span>& acc, <span class="keyword">auto</span> <span class="keyword">const</span>& it) {</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> acc + it.first;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  });</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  avg = <a class="code" href="namespaceripple.html#a0ad557cc32ca87dcea19af8e30c63c6a">divide</a>(avg, <a class="code" href="classripple_1_1STAmount.html">STAmount</a>{<a class="code" href="namespaceripple.html#a6a13d9debf90470b562dbc1e70a5b02e">noIssue</a>(), size, 0}, <a class="code" href="namespaceripple.html#a6a13d9debf90470b562dbc1e70a5b02e">noIssue</a>());</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (size > 1)</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  sd = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/accumulate.html">std::accumulate</a>(</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  begin, end, sd, [&](<a class="code" href="classripple_1_1Number.html">Number</a> <span class="keyword">const</span>& acc, <span class="keyword">auto</span> <span class="keyword">const</span>& it) {</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> acc + (it.first - avg) * (it.first - avg);</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  });</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  sd = <a class="code" href="namespaceripple.html#aecb9ae1add070266b1be59ff570ec713">root2</a>(sd / (size - 1));</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> {avg, sd, size};</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> };</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  </div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <a class="code" href="classJson_1_1Value.html">Json::Value</a></div>
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<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="namespaceripple.html#a215746d088eb1fa077dffc993a072dc0"> 152</a></span> <a class="code" href="namespaceripple.html#a215746d088eb1fa077dffc993a072dc0">doGetAggregatePrice</a>(<a class="code" href="structripple_1_1RPC_1_1JsonContext.html">RPC::JsonContext</a>& context)</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> {</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="classJson_1_1Value.html">Json::Value</a> result;</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">auto</span> <span class="keyword">const</span>& params(context.<a class="code" href="structripple_1_1RPC_1_1JsonContext.html#a036b2c14552fbca49011c3d0e78017fa">params</a>);</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  constexpr <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> maxOracles = 200;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (!params.isMember(jss::oracles))</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">RPC::missing_field_error</a>(jss::oracles);</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> (!params[jss::oracles].isArray() || params[jss::oracles].size() == 0 ||</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  params[jss::oracles].size() > maxOracles)</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  {</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">rpcORACLE_MALFORMED</a>, result);</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (!params.isMember(jss::base_asset))</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">RPC::missing_field_error</a>(jss::base_asset);</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span> (!params.isMember(jss::quote_asset))</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">RPC::missing_field_error</a>(jss::quote_asset);</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  </div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// Lambda to get `trim` and `time_threshold` fields. If the field</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// is not included in the input then a default value is returned.</span></div>
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|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">auto</span> getField = [&params](</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="classJson_1_1StaticString.html">Json::StaticString</a> <span class="keyword">const</span>& field,</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> def =</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  0) -> <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant<std::uint32_t, error_code_i></a> {</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">if</span> (params.isMember(field))</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  {</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (!params[field].isConvertibleTo(Json::ValueType::uintValue))</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">rpcORACLE_MALFORMED</a>;</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> params[field].asUInt();</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> def;</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  };</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">auto</span> <span class="keyword">const</span> trim = getField(jss::trim);</div>
|
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (std::holds_alternative<error_code_i>(trim))</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  {</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(std::get<error_code_i>(trim), result);</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div>
|
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span> (params.isMember(jss::trim) &&</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  (std::get<std::uint32_t>(trim) == 0 ||</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  std::get<std::uint32_t>(trim) > <a class="code" href="namespaceripple.html#ae55c4da11613be8fb1083497b364eb1f">maxTrim</a>))</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  {</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</a>, result);</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  </div>
|
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keyword">auto</span> <span class="keyword">const</span> timeThreshold = getField(jss::time_threshold, 0);</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (std::holds_alternative<error_code_i>(timeThreshold))</div>
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|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  {</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(std::get<error_code_i>(timeThreshold), result);</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  </div>
|
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">auto</span> <span class="keyword">const</span>& baseAsset = params[jss::base_asset];</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keyword">auto</span> <span class="keyword">const</span>& quoteAsset = params[jss::quote_asset];</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  </div>
|
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// Collect the dataset into bimap keyed by lastUpdateTime and</span></div>
|
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// STAmount (Number is int64 and price is uint64)</span></div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <a class="code" href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff">Prices</a> prices;</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> <span class="keyword">const</span>& oracle : params[jss::oracles])</div>
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|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  {</div>
|
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (!oracle.isMember(jss::oracle_document_id) ||</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  !oracle.isMember(jss::account))</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  {</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">rpcORACLE_MALFORMED</a>, result);</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">auto</span> <span class="keyword">const</span> documentID = oracle[jss::oracle_document_id].isConvertibleTo(</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  Json::ValueType::uintValue)</div>
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|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  ? <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/optional/make_optional.html">std::make_optional</a>(oracle[jss::oracle_document_id].asUInt())</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  : std::nullopt;</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">auto</span> <span class="keyword">const</span> account =</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  parseBase58<AccountID>(oracle[jss::account].asString());</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span> (!account || account->isZero() || !documentID)</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  {</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</a>, result);</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  </div>
|
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr<ReadView const></a> ledger;</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  result = <a class="code" href="namespaceripple_1_1RPC.html#aaebfaaee35308269fab499f4e203a8c9">RPC::lookupLedger</a>(ledger, context);</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span> (!ledger)</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  </div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keyword">auto</span> <span class="keyword">const</span> sle = ledger->read(<a class="code" href="namespaceripple_1_1keylet.html#a0c8501b7162b24e030168fb13b6d774a">keylet::oracle</a>(*account, *documentID));</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <a class="code" href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2">iteratePriceData</a>(context, sle, [&](<a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>& node) {</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">auto</span> <span class="keyword">const</span>& series = node.<a class="code" href="classripple_1_1STObject.html#a26fe74d797620b2d08d06d50527380e1">getFieldArray</a>(<a class="code" href="namespaceripple.html#a0b5ba4a808ee7adc426594210ba86978">sfPriceDataSeries</a>);</div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">// find the token pair entry with the price</span></div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (<span class="keyword">auto</span> iter = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a>(</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  series.begin(),</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  series.end(),</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  [&](<a class="code" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>& o) -> <span class="keywordtype">bool</span> {</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  return o.getFieldCurrency(sfBaseAsset).getText() ==</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  baseAsset &&</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  o.getFieldCurrency(sfQuoteAsset).getText() ==</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  quoteAsset &&</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  o.isFieldPresent(sfAssetPrice);</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  });</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  iter != series.end())</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  {</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  auto const price = iter->getFieldU64(sfAssetPrice);</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  auto const scale = iter->isFieldPresent(sfScale)</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  ? -static_cast<int>(iter->getFieldU8(sfScale))</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  : 0;</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  prices.insert(Prices::value_type(</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  node.getFieldU32(sfLastUpdateTime),</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  STAmount{noIssue(), price, scale}));</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  }</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  });</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  </div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">if</span> (prices.empty())</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  {</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5">rpcOBJECT_NOT_FOUND</a>, result);</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  </div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// erase outdated data</span></div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">// sorted in descending, therefore begin is the latest, end is the oldest</span></div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keyword">auto</span> <span class="keyword">const</span> latestTime = prices.left.begin()->first;</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">if</span> (<span class="keyword">auto</span> <span class="keyword">const</span> threshold = std::get<std::uint32_t>(timeThreshold))</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  {</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// threshold defines an acceptable range {max,min} of lastUpdateTime as</span></div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="comment">// {latestTime, latestTime - threshold}, the prices with lastUpdateTime</span></div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// greater than (latestTime - threshold) are erased.</span></div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">auto</span> <span class="keyword">const</span> oldestTime = prices.left.rbegin()->first;</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keyword">auto</span> <span class="keyword">const</span> upperBound =</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  latestTime > threshold ? (latestTime - threshold) : oldestTime;</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">if</span> (upperBound > oldestTime)</div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  prices.left.erase(</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  prices.left.upper_bound(upperBound), prices.left.end());</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  </div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">if</span> (prices.empty())</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <a class="code" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5">rpcOBJECT_NOT_FOUND</a>, result);</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  }</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  result[jss::time] = latestTime;</div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  </div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// calculate stats</span></div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">auto</span> <span class="keyword">const</span> [avg, sd, <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>] =</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="namespaceripple.html#a457bfc9c35fae401715c2eec92911de9">getStats</a>(prices.right.begin(), prices.right.end());</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  result[jss::entire_set][jss::mean] = avg.getText();</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  result[jss::entire_set][jss::size] = <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>;</div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  result[jss::entire_set][jss::standard_deviation] = <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(sd);</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  </div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">auto</span> itAdvance = [&](<span class="keyword">auto</span> it, <span class="keywordtype">int</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">distance</a>) {</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/advance.html">std::advance</a>(it, distance);</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">return</span> it;</div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  };</div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  </div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keyword">auto</span> <span class="keyword">const</span> median = [&prices, &itAdvance, &size_ = <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>]() {</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keyword">auto</span> <span class="keyword">const</span> middle = size_ / 2;</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">if</span> ((size_ % 2) == 0)</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  {</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keyword">static</span> STAmount two{<a class="code" href="namespaceripple.html#a6a13d9debf90470b562dbc1e70a5b02e">noIssue</a>(), 2, 0};</div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keyword">auto</span> it = itAdvance(prices.right.begin(), middle - 1);</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">auto</span> <span class="keyword">const</span>& a1 = it->first;</div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keyword">auto</span> <span class="keyword">const</span>& a2 = (++it)->first;</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a0ad557cc32ca87dcea19af8e30c63c6a">divide</a>(a1 + a2, two, <a class="code" href="namespaceripple.html#a6a13d9debf90470b562dbc1e70a5b02e">noIssue</a>());</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">return</span> itAdvance(prices.right.begin(), middle)->first;</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  }();</div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  result[jss::median] = median.getText();</div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  </div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">if</span> (std::get<std::uint32_t>(trim) != 0)</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  {</div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">auto</span> <span class="keyword">const</span> trimCount =</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  prices.size() * std::get<std::uint32_t>(trim) / 100;</div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  </div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keyword">auto</span> <span class="keyword">const</span> [avg, sd, <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>] = <a class="code" href="namespaceripple.html#a457bfc9c35fae401715c2eec92911de9">getStats</a>(</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  itAdvance(prices.right.begin(), trimCount),</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  itAdvance(prices.right.end(), -trimCount));</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  result[jss::trimmed_set][jss::mean] = avg.getText();</div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  result[jss::trimmed_set][jss::size] = <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>;</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  result[jss::trimmed_set][jss::standard_deviation] = <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(sd);</div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  </div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> }</div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  </div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> } <span class="comment">// namespace ripple</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceripple_html_a735d480bdbcfa9135a2e6cf5944fea50"><div class="ttname"><a href="namespaceripple.html#a735d480bdbcfa9135a2e6cf5944fea50">ripple::sfPreviousTxnLgrSeq</a></div><div class="ttdeci">const SF_UINT32 sfPreviousTxnLgrSeq</div></div>
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<div class="ttc" id="aclassripple_1_1STObject_html_a26fe74d797620b2d08d06d50527380e1"><div class="ttname"><a href="classripple_1_1STObject.html#a26fe74d797620b2d08d06d50527380e1">ripple::STObject::getFieldArray</a></div><div class="ttdeci">const STArray & getFieldArray(SField const &field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00640">STObject.cpp:640</a></div></div>
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<div class="ttc" id="astructripple_1_1RPC_1_1JsonContext_html"><div class="ttname"><a href="structripple_1_1RPC_1_1JsonContext.html">ripple::RPC::JsonContext</a></div><div class="ttdef"><b>Definition:</b> <a href="Context_8h_source.html#l00053">Context.h:53</a></div></div>
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<div class="ttc" id="anamespaceripple_html_aecb9ae1add070266b1be59ff570ec713"><div class="ttname"><a href="namespaceripple.html#aecb9ae1add070266b1be59ff570ec713">ripple::root2</a></div><div class="ttdeci">Number root2(Number f)</div><div class="ttdef"><b>Definition:</b> <a href="Number_8cpp_source.html#l00689">Number.cpp:689</a></div></div>
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<div class="ttc" id="ashared_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">ripple::rpcINVALID_PARAMS</a></div><div class="ttdeci">@ rpcINVALID_PARAMS</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00084">ErrorCodes.h:84</a></div></div>
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<div class="ttc" id="anamespaceripple_html_ac151bf19e1f4daae2b04c65c65117139aeb2a33f9f6c9dc8395f8f1048576610b"><div class="ttname"><a href="namespaceripple.html#ac151bf19e1f4daae2b04c65c65117139aeb2a33f9f6c9dc8395f8f1048576610b">ripple::ltORACLE</a></div><div class="ttdeci">@ ltORACLE</div><div class="ttdoc">A ledger object which tracks Oracle.</div><div class="ttdef"><b>Definition:</b> <a href="LedgerFormats_8h_source.html#l00198">LedgerFormats.h:198</a></div></div>
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<div class="ttc" id="anamespaceripple_html_aaab2288e59025a4b0193e0d45973cec2"><div class="ttname"><a href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2">ripple::iteratePriceData</a></div><div class="ttdeci">static void iteratePriceData(RPC::JsonContext &context, std::shared_ptr< SLE const > const &sle, std::function< bool(STObject const &)> &&f)</div><div class="ttdoc">Calls callback "f" on the ledger-object sle and up to three previous metadata objects.</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00044">GetAggregatePrice.cpp:44</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1keylet_html_a0c8501b7162b24e030168fb13b6d774a"><div class="ttname"><a href="namespaceripple_1_1keylet.html#a0c8501b7162b24e030168fb13b6d774a">ripple::keylet::oracle</a></div><div class="ttdeci">Keylet oracle(AccountID const &account, std::uint32_t const &documentID) noexcept</div><div class="ttdef"><b>Definition:</b> <a href="Indexes_8cpp_source.html#l00449">Indexes.cpp:449</a></div></div>
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<div class="ttc" id="afind_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a></div><div class="ttdeci">T find_if(T... args)</div></div>
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<div class="ttc" id="asize_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/size.html">std::size</a></div><div class="ttdeci">T size(T... args)</div></div>
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<div class="ttc" id="amake_optional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional/make_optional.html">std::make_optional</a></div><div class="ttdeci">T make_optional(T... args)</div></div>
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<div class="ttc" id="astructripple_1_1RPC_1_1Context_html_a92c98828663b6b80d3eb15850ec6897a"><div class="ttname"><a href="structripple_1_1RPC_1_1Context.html#a92c98828663b6b80d3eb15850ec6897a">ripple::RPC::Context::ledgerMaster</a></div><div class="ttdeci">LedgerMaster & ledgerMaster</div><div class="ttdef"><b>Definition:</b> <a href="Context_8h_source.html#l00045">Context.h:45</a></div></div>
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<div class="ttc" id="aget_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr/get.html">std::shared_ptr::get</a></div><div class="ttdeci">T get(T... args)</div></div>
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<div class="ttc" id="adistance_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a></div><div class="ttdeci">T distance(T... args)</div></div>
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<div class="ttc" id="anamespaceripple_html_ae6962034c5c2db38335513cae7086781"><div class="ttname"><a href="namespaceripple.html#ae6962034c5c2db38335513cae7086781">ripple::sfFinalFields</a></div><div class="ttdeci">const SField sfFinalFields</div></div>
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<div class="ttc" id="anamespaceripple_html_a6a13d9debf90470b562dbc1e70a5b02e"><div class="ttname"><a href="namespaceripple.html#a6a13d9debf90470b562dbc1e70a5b02e">ripple::noIssue</a></div><div class="ttdeci">Issue const & noIssue()</div><div class="ttdoc">Returns an asset specifier that represents no account and currency.</div><div class="ttdef"><b>Definition:</b> <a href="Issue_8h_source.html#l00113">Issue.h:113</a></div></div>
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<div class="ttc" id="atuple_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/tuple.html">std::tuple</a></div></div>
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<div class="ttc" id="afunction_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1RPC_html_aaebfaaee35308269fab499f4e203a8c9"><div class="ttname"><a href="namespaceripple_1_1RPC.html#aaebfaaee35308269fab499f4e203a8c9">ripple::RPC::lookupLedger</a></div><div class="ttdeci">Status lookupLedger(std::shared_ptr< ReadView const > &ledger, JsonContext &context, Json::Value &result)</div><div class="ttdoc">Look up a ledger from a request and fill a Json::Result with the data representing a ledger.</div><div class="ttdef"><b>Definition:</b> <a href="RPCHelpers_8cpp_source.html#l00623">RPCHelpers.cpp:623</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5">ripple::rpcOBJECT_NOT_FOUND</a></div><div class="ttdeci">@ rpcOBJECT_NOT_FOUND</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00143">ErrorCodes.h:143</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">ripple::rpcORACLE_MALFORMED</a></div><div class="ttdeci">@ rpcORACLE_MALFORMED</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00149">ErrorCodes.h:149</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1RPC_html_aec2e1163b39a450d3917af9dd15b0f06"><div class="ttname"><a href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">ripple::RPC::missing_field_error</a></div><div class="ttdeci">Json::Value missing_field_error(std::string const &name)</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00268">ErrorCodes.h:268</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a0ad557cc32ca87dcea19af8e30c63c6a"><div class="ttname"><a href="namespaceripple.html#a0ad557cc32ca87dcea19af8e30c63c6a">ripple::divide</a></div><div class="ttdeci">STAmount divide(STAmount const &amount, Rate const &rate)</div><div class="ttdef"><b>Definition:</b> <a href="Rate2_8cpp_source.html#l00086">Rate2.cpp:86</a></div></div>
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<div class="ttc" id="aclassripple_1_1base__uint_html"><div class="ttname"><a href="classripple_1_1base__uint.html">ripple::base_uint< 256 ></a></div></div>
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<div class="ttc" id="aclassripple_1_1Number_html"><div class="ttname"><a href="classripple_1_1Number.html">ripple::Number</a></div><div class="ttdef"><b>Definition:</b> <a href="Number_8h_source.html#l00036">Number.h:36</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a737786376eaaa852f53f51d2463135f9"><div class="ttname"><a href="namespaceripple.html#a737786376eaaa852f53f51d2463135f9">ripple::sfNewFields</a></div><div class="ttdeci">const SField sfNewFields</div></div>
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<div class="ttc" id="anamespaceripple_html_ac44e511c280240e9cefbd305de4640ec"><div class="ttname"><a href="namespaceripple.html#ac44e511c280240e9cefbd305de4640ec">ripple::sfAffectedNodes</a></div><div class="ttdeci">const SField sfAffectedNodes</div></div>
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<div class="ttc" id="aclassripple_1_1STAmount_html"><div class="ttname"><a href="classripple_1_1STAmount.html">ripple::STAmount</a></div><div class="ttdef"><b>Definition:</b> <a href="STAmount_8h_source.html#l00046">STAmount.h:46</a></div></div>
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<div class="ttc" id="aclassripple_1_1LedgerMaster_html_adb95579405e9ad8d61239ffa23b1fb22"><div class="ttname"><a href="classripple_1_1LedgerMaster.html#adb95579405e9ad8d61239ffa23b1fb22">ripple::LedgerMaster::getLedgerBySeq</a></div><div class="ttdeci">std::shared_ptr< Ledger const > getLedgerBySeq(std::uint32_t index)</div><div class="ttdef"><b>Definition:</b> <a href="LedgerMaster_8cpp_source.html#l01871">LedgerMaster.cpp:1871</a></div></div>
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<div class="ttc" id="aaccumulate_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/accumulate.html">std::accumulate</a></div><div class="ttdeci">T accumulate(T... args)</div></div>
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<div class="ttc" id="anamespaceripple_html_a4b1306a6f4ca4fe6b292c8557bc60849"><div class="ttname"><a href="namespaceripple.html#a4b1306a6f4ca4fe6b292c8557bc60849">ripple::sfPreviousTxnID</a></div><div class="ttdeci">const SF_UINT256 sfPreviousTxnID</div></div>
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<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a></div></div>
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<div class="ttc" id="aadvance_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/advance.html">std::advance</a></div><div class="ttdeci">T advance(T... args)</div></div>
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<div class="ttc" id="aclassripple_1_1STObject_html"><div class="ttname"><a href="classripple_1_1STObject.html">ripple::STObject</a></div><div class="ttdef"><b>Definition:</b> <a href="STObject_8h_source.html#l00055">STObject.h:55</a></div></div>
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<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>
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<div class="ttc" id="anamespaceripple_html_a95e082491139cffc65c01b6fcaa3edfe"><div class="ttname"><a href="namespaceripple.html#a95e082491139cffc65c01b6fcaa3edfe">ripple::sfLedgerEntryType</a></div><div class="ttdeci">const SF_UINT16 sfLedgerEntryType</div></div>
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<div class="ttc" id="aclassJson_1_1StaticString_html"><div class="ttname"><a href="classJson_1_1StaticString.html">Json::StaticString</a></div><div class="ttdoc">Lightweight wrapper to tag static string.</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8h_source.html#l00060">json_value.h:60</a></div></div>
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<div class="ttc" id="aclassripple_1_1STObject_html_aaf5d617701ac3afc4ad6a13862459692"><div class="ttname"><a href="classripple_1_1STObject.html#aaf5d617701ac3afc4ad6a13862459692">ripple::STObject::isFieldPresent</a></div><div class="ttdeci">bool isFieldPresent(SField const &field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00444">STObject.cpp:444</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a215746d088eb1fa077dffc993a072dc0"><div class="ttname"><a href="namespaceripple.html#a215746d088eb1fa077dffc993a072dc0">ripple::doGetAggregatePrice</a></div><div class="ttdeci">Json::Value doGetAggregatePrice(RPC::JsonContext &context)</div><div class="ttdoc">oracles: array of {account, oracle_document_id} base_asset: is the asset to be priced quote_asset: is...</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00152">GetAggregatePrice.cpp:152</a></div></div>
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<div class="ttc" id="anamespaceripple_html_af9776f187d3686a7fba4c2d2fbeebdf4"><div class="ttname"><a href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">ripple::to_string</a></div><div class="ttdeci">std::string to_string(Manifest const &m)</div><div class="ttdoc">Format the specified manifest to a string for debugging purposes.</div><div class="ttdef"><b>Definition:</b> <a href="app_2misc_2impl_2Manifest_8cpp_source.html#l00041">app/misc/impl/Manifest.cpp:41</a></div></div>
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<div class="ttc" id="anamespaceripple_html_aa61af01715581f232da60424ac48f8ff"><div class="ttname"><a href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff">ripple::Prices</a></div><div class="ttdeci">bimap< multiset_of< std::uint32_t, std::greater< std::uint32_t > >, multiset_of< STAmount > > Prices</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00038">GetAggregatePrice.cpp:38</a></div></div>
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<div class="ttc" id="aclassripple_1_1STObject_html_a55d1b6946f96a770f3b2195eb5a5a943"><div class="ttname"><a href="classripple_1_1STObject.html#a55d1b6946f96a770f3b2195eb5a5a943">ripple::STObject::getFieldU32</a></div><div class="ttdeci">std::uint32_t getFieldU32(SField const &field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00575">STObject.cpp:575</a></div></div>
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<div class="ttc" id="anamespaceripple_html_ae55c4da11613be8fb1083497b364eb1f"><div class="ttname"><a href="namespaceripple.html#ae55c4da11613be8fb1083497b364eb1f">ripple::maxTrim</a></div><div class="ttdeci">constexpr std::size_t maxTrim</div><div class="ttdoc">The maximum percentage of outliers to trim.</div><div class="ttdef"><b>Definition:</b> <a href="Protocol_8h_source.html#l00135">Protocol.h:135</a></div></div>
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<div class="ttc" id="astructripple_1_1RPC_1_1JsonContext_html_a036b2c14552fbca49011c3d0e78017fa"><div class="ttname"><a href="structripple_1_1RPC_1_1JsonContext.html#a036b2c14552fbca49011c3d0e78017fa">ripple::RPC::JsonContext::params</a></div><div class="ttdeci">Json::Value params</div><div class="ttdef"><b>Definition:</b> <a href="Context_8h_source.html#l00064">Context.h:64</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a0b5ba4a808ee7adc426594210ba86978"><div class="ttname"><a href="namespaceripple.html#a0b5ba4a808ee7adc426594210ba86978">ripple::sfPriceDataSeries</a></div><div class="ttdeci">const SField sfPriceDataSeries</div></div>
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<div class="ttc" id="anamespaceripple_1_1RPC_html_a577bde9602a28f59e445c496f92a1ccf"><div class="ttname"><a href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">ripple::RPC::inject_error</a></div><div class="ttdeci">void inject_error(error_code_i code, JsonValue &json)</div><div class="ttdoc">Add or update the json update to reflect the error code.</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00218">ErrorCodes.h:218</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a457bfc9c35fae401715c2eec92911de9"><div class="ttname"><a href="namespaceripple.html#a457bfc9c35fae401715c2eec92911de9">ripple::getStats</a></div><div class="ttdeci">static std::tuple< STAmount, Number, std::uint16_t > getStats(Prices::right_const_iterator const &begin, Prices::right_const_iterator const &end)</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00120">GetAggregatePrice.cpp:120</a></div></div>
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<div class="ttc" id="aclassJson_1_1Value_html"><div class="ttname"><a href="classJson_1_1Value.html">Json::Value</a></div><div class="ttdoc">Represents a JSON value.</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8h_source.html#l00145">json_value.h:145</a></div></div>
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<div class="ttc" id="avariant_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant</a></div></div>
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<div class="ttc" id="aclassripple_1_1STObject_html_af89b6c7fd94c998549037d0c44a068a1"><div class="ttname"><a href="classripple_1_1STObject.html#af89b6c7fd94c998549037d0c44a068a1">ripple::STObject::getFieldH256</a></div><div class="ttdeci">uint256 getFieldH256(SField const &field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00599">STObject.cpp:599</a></div></div>
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