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<li class="navelem"><a class="el" href="dir_90ffdbabf412cfdffe6b2193e0ce938a.html">libxrpl</a></li><li class="navelem"><a class="el" href="dir_206ae571f9a7f3abb34f1a779b56a18b.html">ledger</a></li> </ul>
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<div class="headertitle"><div class="title">BookDirs.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &lt;xrpl/ledger/BookDirs.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include &lt;xrpl/ledger/View.h&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include &lt;xrpl/protocol/Indexes.h&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacexrpl.html">xrpl</a> {</div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="foldopen" id="foldopen00007" data-start="{" data-end="}">
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs.html#a4266ce65755accf6862b15753d8a3f6b"> 7</a></span><a class="code hl_function" href="classxrpl_1_1BookDirs.html#a4266ce65755accf6862b15753d8a3f6b">BookDirs::BookDirs</a>(<a class="code hl_class" href="classxrpl_1_1ReadView.html">ReadView</a> <span class="keyword">const</span>&amp; view, <a class="code hl_class" href="classxrpl_1_1Book.html">Book</a> <span class="keyword">const</span>&amp; book)</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> : view_(&amp;view)</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> , root_(keylet::page(<a class="code hl_function" href="namespacexrpl.html#ab210d90a050229ac2046e883b3888d5d">getBookBase</a>(book)).key)</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> , next_quality_(<a class="code hl_function" href="namespacexrpl.html#a9a1425212673348937444a4a5ad99bab">getQualityNext</a>(root_))</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> , key_(view_-&gt;succ(root_, next_quality_).value_or(<a class="code hl_namespace" href="namespacebeast.html">beast</a>::zero))</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span>{</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> XRPL_ASSERT(<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#add5935041059cafadf86e09a31694e44">root_</a> != beast::zero, <span class="stringliteral">&quot;xrpl::BookDirs::BookDirs : nonzero root&quot;</span>);</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">key_</a> != beast::zero)</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> {</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespacexrpl.html#a6b55eb15c0572e3b6fa55e1e1d246d51">cdirFirst</a>(*<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">key_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a937227c8ac272edfadcb35faa1bcf8d5">sle_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a9aa251cf2d23cf8259509da44486e37d">entry_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a>))</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> {</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// LCOV_EXCL_START</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> UNREACHABLE(<span class="stringliteral">&quot;xrpl::BookDirs::BookDirs : directory is empty&quot;</span>);</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// LCOV_EXCL_STOP</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> }</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> }</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span>}</div>
</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">auto</span></div>
<div class="foldopen" id="foldopen00026" data-start="{" data-end="}">
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs.html#ab8b306e2117f2ee32fefa7308e68470a"> 26</a></span><a class="code hl_function" href="classxrpl_1_1BookDirs.html#ab8b306e2117f2ee32fefa7308e68470a">BookDirs::begin</a>() const -&gt; <a class="code hl_class" href="classxrpl_1_1BookDirs.html">BookDirs</a>::<a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">const_iterator</a></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span>{</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">auto</span> it = <a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">BookDirs::const_iterator</a>(*<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#add5935041059cafadf86e09a31694e44">root_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">key_</a>);</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">key_</a> != beast::zero)</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> it.next_quality_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a844e7c5b47f892136ee4a10e3208181d">next_quality_</a>;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> it.sle_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a937227c8ac272edfadcb35faa1bcf8d5">sle_</a>;</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> it.entry_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a9aa251cf2d23cf8259509da44486e37d">entry_</a>;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> it.index_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a>;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> }</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span> it;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>}</div>
</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="keyword">auto</span></div>
<div class="foldopen" id="foldopen00040" data-start="{" data-end="}">
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs.html#ab6cd9b7d7bf5fa60b4de0029363131e6"> 40</a></span><a class="code hl_function" href="classxrpl_1_1BookDirs.html#ab6cd9b7d7bf5fa60b4de0029363131e6">BookDirs::end</a>() const -&gt; <a class="code hl_class" href="classxrpl_1_1BookDirs.html">BookDirs</a>::<a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">const_iterator</a></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">BookDirs::const_iterator</a>(*<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#add5935041059cafadf86e09a31694e44">root_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">key_</a>);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>}</div>
</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><a class="code hl_class" href="classbeast_1_1Journal.html">beast::Journal</a> BookDirs::const_iterator::j_ = <a class="code hl_class" href="classbeast_1_1Journal.html">beast::Journal</a>{<a class="code hl_function" href="classbeast_1_1Journal.html#a930d70ff72f71414fcd5b560610cefb6">beast::Journal::getNullSink</a>()};</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00048" data-start="{" data-end="}">
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a2959da13e8ce65477ecfb1c5e823ea83"> 48</a></span><a class="code hl_function" href="classxrpl_1_1Dir_1_1const__iterator.html#a5adf5d919af2331e08a3c258e4587b10">BookDirs::const_iterator::operator==</a>(<a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">BookDirs::const_iterator</a> <span class="keyword">const</span>&amp; other)<span class="keyword"> const</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#afc52dd814906c811b44864ea10e5016c">view_</a> == <span class="keyword">nullptr</span> || other.<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#afc52dd814906c811b44864ea10e5016c">view_</a> == <span class="keyword">nullptr</span>)</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#afc52dd814906c811b44864ea10e5016c">view_</a> == other.<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#afc52dd814906c811b44864ea10e5016c">view_</a> &amp;&amp; <a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a14a75c6f8ebfb4c211b8b188d50d433d">root_</a> == other.<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a14a75c6f8ebfb4c211b8b188d50d433d">root_</a>,</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="stringliteral">&quot;xrpl::BookDirs::const_iterator::operator== : views and roots are &quot;</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="stringliteral">&quot;matching&quot;</span>);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#aa35984ca82e7353739ab7351710accc1">entry_</a> == other.<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#aa35984ca82e7353739ab7351710accc1">entry_</a> &amp;&amp; <a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a57d85cac80d609186e8eca7e20cb10df">cur_key_</a> == other.<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a57d85cac80d609186e8eca7e20cb10df">cur_key_</a> &amp;&amp; <a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a190ff17eff51b9e0ab77785dfb0f0687">index_</a> == other.<a class="code hl_variable" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a190ff17eff51b9e0ab77785dfb0f0687">index_</a>;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>}</div>
</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><a class="code hl_typedef" href="classxrpl_1_1Dir_1_1const__iterator.html#ab1bca2b7a26fb50746490b6e59816efb">BookDirs::const_iterator::reference</a></div>
<div class="foldopen" id="foldopen00061" data-start="{" data-end="}">
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs_1_1const__iterator.html#ae66983d107cd14407ae75e39fb0e2c53"> 61</a></span><a class="code hl_function" href="classxrpl_1_1Dir_1_1const__iterator.html#aabf5219a4da1bba1332172a70035c51d">BookDirs::const_iterator::operator*</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> XRPL_ASSERT(<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a> != beast::zero, <span class="stringliteral">&quot;xrpl::BookDirs::const_iterator::operator* : nonzero index&quot;</span>);</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">if</span> (!cache_)</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> cache_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>-&gt;<a class="code hl_function" href="classxrpl_1_1ReadView.html#ae7286da5df8ee36f950cc43fd3a46806">read</a>(<a class="code hl_function" href="namespacexrpl_1_1keylet.html#a8c47d57d12c3ebaf79976f6f73671092">keylet::offer</a>(<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a>));</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> *cache_;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span>}</div>
</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">BookDirs::const_iterator</a>&amp;</div>
<div class="foldopen" id="foldopen00070" data-start="{" data-end="}">
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a82938637bd79e0214cd995f0f2a35db9"> 70</a></span><a class="code hl_function" href="classxrpl_1_1Dir_1_1const__iterator.html#a5e6da57bf5748a6fd89f6f2a2f8286a3">BookDirs::const_iterator::operator++</a>()</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span>{</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">using </span>beast::zero;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> XRPL_ASSERT(<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a> != zero, <span class="stringliteral">&quot;xrpl::BookDirs::const_iterator::operator++ : nonzero index&quot;</span>);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespacexrpl.html#a6363588e3479ab80c2af33bd917b1a07">cdirNext</a>(*<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>, cur_key_, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a937227c8ac272edfadcb35faa1bcf8d5">sle_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a9aa251cf2d23cf8259509da44486e37d">entry_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a>))</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> {</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a> != 0 || (cur_key_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>-&gt;<a class="code hl_function" href="classxrpl_1_1ReadView.html#acdb1bbc006dc50ae95d5d5925a2b76ce">succ</a>(++cur_key_, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a844e7c5b47f892136ee4a10e3208181d">next_quality_</a>).value_or(zero)) == zero)</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> {</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> cur_key_ = <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">key_</a>;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a9aa251cf2d23cf8259509da44486e37d">entry_</a> = 0;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a> = zero;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> }</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespacexrpl.html#a6b55eb15c0572e3b6fa55e1e1d246d51">cdirFirst</a>(*<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">view_</a>, cur_key_, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a937227c8ac272edfadcb35faa1bcf8d5">sle_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a9aa251cf2d23cf8259509da44486e37d">entry_</a>, <a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a>))</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> {</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// LCOV_EXCL_START</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> UNREACHABLE(</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="stringliteral">&quot;xrpl::BookDirs::const_iterator::operator++ : directory is &quot;</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="stringliteral">&quot;empty&quot;</span>);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// LCOV_EXCL_STOP</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> }</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> }</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> cache_ = <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::nullopt</a>;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span>}</div>
</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">BookDirs::const_iterator</a></div>
<div class="foldopen" id="foldopen00098" data-start="{" data-end="}">
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="classxrpl_1_1BookDirs_1_1const__iterator.html#a1487103337e555d8f90a9571f16c2c16"> 98</a></span><a class="code hl_function" href="classxrpl_1_1Dir_1_1const__iterator.html#a5e6da57bf5748a6fd89f6f2a2f8286a3">BookDirs::const_iterator::operator++</a>(<span class="keywordtype">int</span>)</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span>{</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> XRPL_ASSERT(<a class="code hl_variable" href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">index_</a> != beast::zero, <span class="stringliteral">&quot;xrpl::BookDirs::const_iterator::operator++(int) : nonzero index&quot;</span>);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <a class="code hl_class" href="classxrpl_1_1BookDirs_1_1const__iterator.html">const_iterator</a> tmp(*<span class="keyword">this</span>);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> ++(*this);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">return</span> tmp;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span>}</div>
</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span>} <span class="comment">// namespace xrpl</span></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#l00040">Journal.h:41</a></div></div>
<div class="ttc" id="aclassbeast_1_1Journal_html_a930d70ff72f71414fcd5b560610cefb6"><div class="ttname"><a href="classbeast_1_1Journal.html#a930d70ff72f71414fcd5b560610cefb6">beast::Journal::getNullSink</a></div><div class="ttdeci">static Sink &amp; getNullSink()</div><div class="ttdoc">Returns a Sink which does nothing.</div><div class="ttdef"><b>Definition</b> <a href="beast__Journal_8cpp_source.html#l00063">beast_Journal.cpp:63</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_1_1const__iterator_html"><div class="ttname"><a href="classxrpl_1_1BookDirs_1_1const__iterator.html">xrpl::BookDirs::const_iterator</a></div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00033">BookDirs.h:34</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_1_1const__iterator_html_a14a75c6f8ebfb4c211b8b188d50d433d"><div class="ttname"><a href="classxrpl_1_1BookDirs_1_1const__iterator.html#a14a75c6f8ebfb4c211b8b188d50d433d">xrpl::BookDirs::const_iterator::root_</a></div><div class="ttdeci">uint256 root_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00077">BookDirs.h:77</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_1_1const__iterator_html_a190ff17eff51b9e0ab77785dfb0f0687"><div class="ttname"><a href="classxrpl_1_1BookDirs_1_1const__iterator.html#a190ff17eff51b9e0ab77785dfb0f0687">xrpl::BookDirs::const_iterator::index_</a></div><div class="ttdeci">uint256 index_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00083">BookDirs.h:83</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_1_1const__iterator_html_a57d85cac80d609186e8eca7e20cb10df"><div class="ttname"><a href="classxrpl_1_1BookDirs_1_1const__iterator.html#a57d85cac80d609186e8eca7e20cb10df">xrpl::BookDirs::const_iterator::cur_key_</a></div><div class="ttdeci">uint256 cur_key_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00080">BookDirs.h:80</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_1_1const__iterator_html_aa35984ca82e7353739ab7351710accc1"><div class="ttname"><a href="classxrpl_1_1BookDirs_1_1const__iterator.html#aa35984ca82e7353739ab7351710accc1">xrpl::BookDirs::const_iterator::entry_</a></div><div class="ttdeci">unsigned int entry_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00082">BookDirs.h:82</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_1_1const__iterator_html_afc52dd814906c811b44864ea10e5016c"><div class="ttname"><a href="classxrpl_1_1BookDirs_1_1const__iterator.html#afc52dd814906c811b44864ea10e5016c">xrpl::BookDirs::const_iterator::view_</a></div><div class="ttdeci">ReadView const * view_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00076">BookDirs.h:76</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html"><div class="ttname"><a href="classxrpl_1_1BookDirs.html">xrpl::BookDirs</a></div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00009">BookDirs.h:10</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_a2d0b0e228c4db77bc99bfbc71133aebc"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#a2d0b0e228c4db77bc99bfbc71133aebc">xrpl::BookDirs::index_</a></div><div class="ttdeci">uint256 index_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00018">BookDirs.h:18</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_a3c1d682dc288e0da2d376da30b5773d2"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#a3c1d682dc288e0da2d376da30b5773d2">xrpl::BookDirs::key_</a></div><div class="ttdeci">uint256 const key_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00015">BookDirs.h:15</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_a4266ce65755accf6862b15753d8a3f6b"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#a4266ce65755accf6862b15753d8a3f6b">xrpl::BookDirs::BookDirs</a></div><div class="ttdeci">BookDirs(ReadView const &amp;, Book const &amp;)</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8cpp_source.html#l00007">BookDirs.cpp:7</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_a844e7c5b47f892136ee4a10e3208181d"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#a844e7c5b47f892136ee4a10e3208181d">xrpl::BookDirs::next_quality_</a></div><div class="ttdeci">uint256 const next_quality_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00014">BookDirs.h:14</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_a937227c8ac272edfadcb35faa1bcf8d5"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#a937227c8ac272edfadcb35faa1bcf8d5">xrpl::BookDirs::sle_</a></div><div class="ttdeci">std::shared_ptr&lt; SLE const &gt; sle_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00016">BookDirs.h:16</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_a9aa251cf2d23cf8259509da44486e37d"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#a9aa251cf2d23cf8259509da44486e37d">xrpl::BookDirs::entry_</a></div><div class="ttdeci">unsigned int entry_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00017">BookDirs.h:17</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_ab6cd9b7d7bf5fa60b4de0029363131e6"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#ab6cd9b7d7bf5fa60b4de0029363131e6">xrpl::BookDirs::end</a></div><div class="ttdeci">const_iterator end() const</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8cpp_source.html#l00040">BookDirs.cpp:40</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_ab8b306e2117f2ee32fefa7308e68470a"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#ab8b306e2117f2ee32fefa7308e68470a">xrpl::BookDirs::begin</a></div><div class="ttdeci">const_iterator begin() const</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8cpp_source.html#l00026">BookDirs.cpp:26</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_ad3f98146011ec40be982057efdd41b3c"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#ad3f98146011ec40be982057efdd41b3c">xrpl::BookDirs::view_</a></div><div class="ttdeci">ReadView const * view_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00012">BookDirs.h:12</a></div></div>
<div class="ttc" id="aclassxrpl_1_1BookDirs_html_add5935041059cafadf86e09a31694e44"><div class="ttname"><a href="classxrpl_1_1BookDirs.html#add5935041059cafadf86e09a31694e44">xrpl::BookDirs::root_</a></div><div class="ttdeci">uint256 const root_</div><div class="ttdef"><b>Definition</b> <a href="BookDirs_8h_source.html#l00013">BookDirs.h:13</a></div></div>
<div class="ttc" id="aclassxrpl_1_1Book_html"><div class="ttname"><a href="classxrpl_1_1Book.html">xrpl::Book</a></div><div class="ttdoc">Specifies an order book.</div><div class="ttdef"><b>Definition</b> <a href="Book_8h_source.html#l00016">Book.h:17</a></div></div>
<div class="ttc" id="aclassxrpl_1_1Dir_1_1const__iterator_html_a5adf5d919af2331e08a3c258e4587b10"><div class="ttname"><a href="classxrpl_1_1Dir_1_1const__iterator.html#a5adf5d919af2331e08a3c258e4587b10">xrpl::Dir::const_iterator::operator==</a></div><div class="ttdeci">bool operator==(const_iterator const &amp;other) const</div><div class="ttdef"><b>Definition</b> <a href="Dir_8cpp_source.html#l00038">Dir.cpp:38</a></div></div>
<div class="ttc" id="aclassxrpl_1_1Dir_1_1const__iterator_html_a5e6da57bf5748a6fd89f6f2a2f8286a3"><div class="ttname"><a href="classxrpl_1_1Dir_1_1const__iterator.html#a5e6da57bf5748a6fd89f6f2a2f8286a3">xrpl::Dir::const_iterator::operator++</a></div><div class="ttdeci">const_iterator &amp; operator++()</div><div class="ttdef"><b>Definition</b> <a href="Dir_8cpp_source.html#l00059">Dir.cpp:59</a></div></div>
<div class="ttc" id="aclassxrpl_1_1Dir_1_1const__iterator_html_aabf5219a4da1bba1332172a70035c51d"><div class="ttname"><a href="classxrpl_1_1Dir_1_1const__iterator.html#aabf5219a4da1bba1332172a70035c51d">xrpl::Dir::const_iterator::operator*</a></div><div class="ttdeci">reference operator*() const</div><div class="ttdef"><b>Definition</b> <a href="Dir_8cpp_source.html#l00050">Dir.cpp:50</a></div></div>
<div class="ttc" id="aclassxrpl_1_1Dir_1_1const__iterator_html_ab1bca2b7a26fb50746490b6e59816efb"><div class="ttname"><a href="classxrpl_1_1Dir_1_1const__iterator.html#ab1bca2b7a26fb50746490b6e59816efb">xrpl::Dir::const_iterator::reference</a></div><div class="ttdeci">value_type const &amp; reference</div><div class="ttdef"><b>Definition</b> <a href="Dir_8h_source.html#l00047">Dir.h:47</a></div></div>
<div class="ttc" id="aclassxrpl_1_1ReadView_html"><div class="ttname"><a href="classxrpl_1_1ReadView.html">xrpl::ReadView</a></div><div class="ttdoc">A view into a ledger.</div><div class="ttdef"><b>Definition</b> <a href="ReadView_8h_source.html#l00031">ReadView.h:32</a></div></div>
<div class="ttc" id="aclassxrpl_1_1ReadView_html_acdb1bbc006dc50ae95d5d5925a2b76ce"><div class="ttname"><a href="classxrpl_1_1ReadView.html#acdb1bbc006dc50ae95d5d5925a2b76ce">xrpl::ReadView::succ</a></div><div class="ttdeci">virtual std::optional&lt; key_type &gt; succ(key_type const &amp;key, std::optional&lt; key_type &gt; const &amp;last=std::nullopt) const =0</div><div class="ttdoc">Return the key of the next state item.</div></div>
<div class="ttc" id="aclassxrpl_1_1ReadView_html_ae7286da5df8ee36f950cc43fd3a46806"><div class="ttname"><a href="classxrpl_1_1ReadView.html#ae7286da5df8ee36f950cc43fd3a46806">xrpl::ReadView::read</a></div><div class="ttdeci">virtual std::shared_ptr&lt; SLE const &gt; read(Keylet const &amp;k) const =0</div><div class="ttdoc">Return the state item associated with a key.</div></div>
<div class="ttc" id="ais_same_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_same.html">std::is_same_v</a></div><div class="ttdeci">T is_same_v</div></div>
<div class="ttc" id="anamespacebeast_html"><div class="ttname"><a href="namespacebeast.html">beast</a></div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00638">base_uint.h:638</a></div></div>
<div class="ttc" id="anamespacexrpl_1_1keylet_html_a8c47d57d12c3ebaf79976f6f73671092"><div class="ttname"><a href="namespacexrpl_1_1keylet.html#a8c47d57d12c3ebaf79976f6f73671092">xrpl::keylet::offer</a></div><div class="ttdeci">Keylet offer(AccountID const &amp;id, std::uint32_t seq) noexcept</div><div class="ttdoc">An offer from an account.</div><div class="ttdef"><b>Definition</b> <a href="Indexes_8cpp_source.html#l00235">Indexes.cpp:235</a></div></div>
<div class="ttc" id="anamespacexrpl_html"><div class="ttname"><a href="namespacexrpl.html">xrpl</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="algorithm_8h_source.html#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a6363588e3479ab80c2af33bd917b1a07"><div class="ttname"><a href="namespacexrpl.html#a6363588e3479ab80c2af33bd917b1a07">xrpl::cdirNext</a></div><div class="ttdeci">bool cdirNext(ReadView const &amp;view, uint256 const &amp;root, std::shared_ptr&lt; SLE const &gt; &amp;page, unsigned int &amp;index, uint256 &amp;entry)</div><div class="ttdoc">Returns the next entry in the directory, advancing the index.</div><div class="ttdef"><b>Definition</b> <a href="View_8cpp_source.html#l00112">View.cpp:112</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a6b55eb15c0572e3b6fa55e1e1d246d51"><div class="ttname"><a href="namespacexrpl.html#a6b55eb15c0572e3b6fa55e1e1d246d51">xrpl::cdirFirst</a></div><div class="ttdeci">bool cdirFirst(ReadView const &amp;view, uint256 const &amp;root, std::shared_ptr&lt; SLE const &gt; &amp;page, unsigned int &amp;index, uint256 &amp;entry)</div><div class="ttdoc">Returns the first entry in the directory, advancing the index.</div><div class="ttdef"><b>Definition</b> <a href="View_8cpp_source.html#l00101">View.cpp:101</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a9a1425212673348937444a4a5ad99bab"><div class="ttname"><a href="namespacexrpl.html#a9a1425212673348937444a4a5ad99bab">xrpl::getQualityNext</a></div><div class="ttdeci">uint256 getQualityNext(uint256 const &amp;uBase)</div><div class="ttdef"><b>Definition</b> <a href="Indexes_8cpp_source.html#l00119">Indexes.cpp:119</a></div></div>
<div class="ttc" id="anamespacexrpl_html_ab210d90a050229ac2046e883b3888d5d"><div class="ttname"><a href="namespacexrpl.html#ab210d90a050229ac2046e883b3888d5d">xrpl::getBookBase</a></div><div class="ttdeci">uint256 getBookBase(Book const &amp;book)</div><div class="ttdef"><b>Definition</b> <a href="Indexes_8cpp_source.html#l00098">Indexes.cpp:98</a></div></div>
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