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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_9f69212e4c6e2ca9ec5ab59cd7b6275c.html">app</a></li><li class="navelem"><a class="el" href="dir_1e0db5c7188e9c3cb47dd9ba683c8f27.html">paths</a></li><li class="navelem"><a class="el" href="dir_a616178398cd3ecc4e74090cb6c9f8d9.html">impl</a></li> </ul>
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<div class="title">AMMLiquidity.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> <span class="preprocessor">#include <ripple/app/paths/AMMLiquidity.h></span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <ripple/app/paths/AMMOffer.h></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">template</span> <<span class="keyword">typename</span> TIn, <span class="keyword">typename</span> TOut></div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="classripple_1_1AMMLiquidity.html#ab64d5ee790ade8eea80a94449a0e120c"> 26</a></span> <a class="code" href="classripple_1_1AMMLiquidity.html#ab64d5ee790ade8eea80a94449a0e120c">AMMLiquidity<TIn, TOut>::AMMLiquidity</a>(</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <a class="code" href="classripple_1_1ReadView.html">ReadView</a> <span class="keyword">const</span>& view,</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="code" href="classripple_1_1base__uint.html">AccountID</a> <span class="keyword">const</span>& <a class="code" href="namespaceripple.html#a768092086ea18d2dbeb64efb9fa12ba5">ammAccountID</a>,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> tradingFee,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="classripple_1_1Issue.html">Issue</a> <span class="keyword">const</span>& in,</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="code" href="classripple_1_1Issue.html">Issue</a> <span class="keyword">const</span>& out,</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="classripple_1_1AMMContext.html">AMMContext</a>& ammContext,</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="classbeast_1_1Journal.html">beast::Journal</a> j)</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  : ammContext_(ammContext)</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  , ammAccountID_(<a class="code" href="namespaceripple.html#a768092086ea18d2dbeb64efb9fa12ba5">ammAccountID</a>)</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  , tradingFee_(tradingFee)</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  , issueIn_(<a class="code" href="namespaceripple.html#a7cc64e12723fbc9606d85442a2569feda13b5bfe96f3e2fe411c9f66f4a582adf">in</a>)</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  , issueOut_(<a class="code" href="namespaceripple.html#a7cc64e12723fbc9606d85442a2569fedac68271a63ddbc431c307beb7d2918275">out</a>)</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  , initialBalances_{<a class="code" href="classripple_1_1AMMLiquidity.html#a90e392457e7f89d2ee5e2a5398b29aac">fetchBalances</a>(view)}</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  , j_(j)</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">template</span> <<span class="keyword">typename</span> TIn, <span class="keyword">typename</span> TOut></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> TAmounts<TIn, TOut></div>
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<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classripple_1_1AMMLiquidity.html#a90e392457e7f89d2ee5e2a5398b29aac"> 46</a></span> <a class="code" href="classripple_1_1AMMLiquidity.html#a90e392457e7f89d2ee5e2a5398b29aac">AMMLiquidity<TIn, TOut>::fetchBalances</a>(<a class="code" href="classripple_1_1ReadView.html">ReadView</a> <span class="keyword">const</span>& view)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">auto</span> <span class="keyword">const</span> assetIn = <a class="code" href="namespaceripple.html#ac7da6b05048137df6afafbcb4af6343a">ammAccountHolds</a>(view, ammAccountID_, issueIn_);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">auto</span> <span class="keyword">const</span> assetOut = <a class="code" href="namespaceripple.html#ac7da6b05048137df6afafbcb4af6343a">ammAccountHolds</a>(view, ammAccountID_, issueOut_);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// This should not happen.</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (assetIn < beast::zero || assetOut < beast::zero)</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  Throw<std::runtime_error>(<span class="stringliteral">"AMMLiquidity: invalid balances"</span>);</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="keywordflow">return</span> TAmounts{get<TIn>(assetIn), get<TOut>(assetOut)};</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">template</span> <<span class="keyword">typename</span> TIn, <span class="keyword">typename</span> TOut></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> TAmounts<TIn, TOut></div>
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<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classripple_1_1AMMLiquidity.html#afc3099a63d626321df693638c4b09b34"> 59</a></span> <a class="code" href="classripple_1_1AMMLiquidity.html#afc3099a63d626321df693638c4b09b34">AMMLiquidity<TIn, TOut>::generateFibSeqOffer</a>(</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  TAmounts<TIn, TOut> <span class="keyword">const</span>& balances)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  TAmounts<TIn, TOut> cur{};</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  cur.in = toAmount<TIn>(</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="namespaceripple.html#a35d75f3e8c1d99beb8c834d767070d8c">getIssue</a>(balances.in),</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  InitialFibSeqPct * initialBalances_.in,</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  Number::rounding_mode::upward);</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  cur.out = swapAssetIn(initialBalances_, cur.in, tradingFee_);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (ammContext_.curIters() == 0)</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> cur;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// clang-format off</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  constexpr <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> fib[<a class="code" href="classripple_1_1AMMContext.html#a79ed6fed6ecbae8ca4dd7fdece63ce62">AMMContext::MaxIterations</a>] = {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987,</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393,</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  196418, 317811, 514229, 832040, 1346269};</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// clang-format on</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>  assert(!ammContext_.maxItersReached());</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  cur.out = toAmount<TOut>(</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="namespaceripple.html#a35d75f3e8c1d99beb8c834d767070d8c">getIssue</a>(balances.out),</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  cur.out * fib[ammContext_.curIters() - 1],</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  Number::rounding_mode::downward);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// swapAssetOut() returns negative in this case</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (cur.out >= balances.out)</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  Throw<std::overflow_error>(</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="stringliteral">"AMMLiquidity: generateFibSeqOffer exceeds the balance"</span>);</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  cur.in = swapAssetOut(balances, cur.out, tradingFee_);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> cur;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> }</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="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> constexpr T</div>
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<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="namespaceripple.html#a7bdc84d96ec45a7762712eb35dd18f26"> 98</a></span> <a class="code" href="namespaceripple.html#a7bdc84d96ec45a7762712eb35dd18f26">maxAmount</a>()</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> {</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> constexpr (std::is_same_v<T, XRPAmount>)</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1XRPAmount.html">XRPAmount</a>(<a class="code" href="classripple_1_1STAmount.html#a5f4f7f30f981c8c1c82baceac35a740a">STAmount::cMaxNative</a>);</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr (std::is_same_v<T, IOUAmount>)</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a>(<a class="code" href="classripple_1_1STAmount.html#af88c7b9a2ee49408f4fd17e1ee9f20df">STAmount::cMaxValue</a> / 2, <a class="code" href="classripple_1_1STAmount.html#a84ebd351b1c12b5467b59c9cd4d1640f">STAmount::cMaxOffset</a>);</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr (std::is_same_v<T, STAmount>)</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1STAmount.html">STAmount</a>(<a class="code" href="classripple_1_1STAmount.html#af88c7b9a2ee49408f4fd17e1ee9f20df">STAmount::cMaxValue</a> / 2, <a class="code" href="classripple_1_1STAmount.html#a84ebd351b1c12b5467b59c9cd4d1640f">STAmount::cMaxOffset</a>);</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">template</span> <<span class="keyword">typename</span> TIn, <span class="keyword">typename</span> TOut></div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> AMMOffer<TIn, TOut></div>
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<div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="classripple_1_1AMMLiquidity.html#a55c985379a5b167aff96d9c7c11e5fef"> 110</a></span> <a class="code" href="classripple_1_1AMMLiquidity.html#a55c985379a5b167aff96d9c7c11e5fef">AMMLiquidity<TIn, TOut>::maxOffer</a>(TAmounts<TIn, TOut> <span class="keyword">const</span>& balances)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1AMMOffer.html">AMMOffer<TIn, TOut></a>(</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  *<span class="keyword">this</span>,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  {maxAmount<TIn>(),</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  swapAssetIn(balances, maxAmount<TIn>(), tradingFee_)},</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  balances,</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  Quality{balances});</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> }</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">template</span> <<span class="keyword">typename</span> TIn, <span class="keyword">typename</span> TOut></div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional<AMMOffer<TIn, TOut></a>></div>
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<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classripple_1_1AMMLiquidity.html#a4f40426bb36529ccba8ef2768e3c3bc9"> 122</a></span> <a class="code" href="classripple_1_1AMMLiquidity.html#a4f40426bb36529ccba8ef2768e3c3bc9">AMMLiquidity<TIn, TOut>::getOffer</a>(</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="classripple_1_1ReadView.html">ReadView</a> <span class="keyword">const</span>& view,</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional<Quality></a> <span class="keyword">const</span>& clobQuality)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// Can't generate more offers if multi-path.</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (ammContext_.maxItersReached())</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">return</span> std::nullopt;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  </div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">auto</span> <span class="keyword">const</span> balances = fetchBalances(view);</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// Frozen accounts</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (balances.in == beast::zero || balances.out == beast::zero)</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  {</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) << <span class="stringliteral">"AMMLiquidity::getOffer, frozen accounts"</span>;</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> std::nullopt;</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>  </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) << <span class="stringliteral">"AMMLiquidity::getOffer balances "</span></div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  << <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(initialBalances_.in) << <span class="stringliteral">" "</span></div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  << <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(initialBalances_.out) << <span class="stringliteral">" new balances "</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  << <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(balances.in) << <span class="stringliteral">" "</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  << <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(balances.out);</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// Can't generate AMM with a better quality than CLOB's</span></div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// quality if AMM's Spot Price quality is less than CLOB quality or is</span></div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// within a threshold.</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// Spot price quality (SPQ) is calculated within some precision threshold.</span></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// On the next iteration, after SPQ is changed, the new SPQ might be close</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// to the requested clobQuality but not exactly and potentially SPQ may keep</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// on approaching clobQuality for many iterations. Checking for the quality</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// threshold prevents this scenario.</span></div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">if</span> (<span class="keyword">auto</span> <span class="keyword">const</span> spotPriceQ = Quality{balances}; clobQuality &&</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  (spotPriceQ <= clobQuality ||</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  withinRelativeDistance(spotPriceQ, *clobQuality, <a class="code" href="classripple_1_1Number.html">Number</a>(1, -7))))</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>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) << <span class="stringliteral">"AMMLiquidity::getOffer, higher clob quality"</span>;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> std::nullopt;</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">auto</span> offer = [&]() -> <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a><<a class="code" href="classripple_1_1AMMOffer.html">AMMOffer<TIn, TOut></a>> {</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">try</span></div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  {</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (ammContext_.multiPath())</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>  <span class="keyword">auto</span> <span class="keyword">const</span> amounts = generateFibSeqOffer(balances);</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (clobQuality && Quality{amounts} < clobQuality)</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> std::nullopt;</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1AMMOffer.html">AMMOffer<TIn, TOut></a>(</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  *<span class="keyword">this</span>, amounts, std::nullopt, Quality{amounts});</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!clobQuality)</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  {</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// If there is no CLOB to compare against, return the largest</span></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// amount, which doesn't overflow. The size is going to be</span></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// changed in BookStep per either deliver amount limit, or</span></div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// sendmax, or available output or input funds.</span></div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> maxOffer(balances);</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div>
|
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">auto</span> <span class="keyword">const</span> amounts =</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  changeSpotPriceQuality(balances, *clobQuality, tradingFee_))</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  {</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1AMMOffer.html">AMMOffer<TIn, TOut></a>(</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  *<span class="keyword">this</span>, *amounts, balances, Quality{*amounts});</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="keywordflow">catch</span> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/error/overflow_error.html">std::overflow_error</a> <span class="keyword">const</span>& e)</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  {</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#a49b0713e65bb8e2c51b76fbf16252afe">error</a>()) << <span class="stringliteral">"AMMLiquidity::getOffer overflow "</span> << e.<a class="codeRef" href="http://en.cppreference.com/w/cpp/error/exception/what.html">what</a>();</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span> maxOffer(balances);</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">catch</span> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/error/exception.html">std::exception</a> <span class="keyword">const</span>& e)</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  {</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#a49b0713e65bb8e2c51b76fbf16252afe">error</a>()) << <span class="stringliteral">"AMMLiquidity::getOffer exception "</span> << e.<a class="codeRef" href="http://en.cppreference.com/w/cpp/error/exception/what.html">what</a>();</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> std::nullopt;</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  }();</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  </div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> (offer)</div>
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<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="keywordflow">if</span> (offer->amount().in > beast::zero &&</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  offer->amount().out > beast::zero)</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>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>())</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  << <span class="stringliteral">"AMMLiquidity::getOffer, created "</span></div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  << <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(offer->amount().in) << <span class="stringliteral">"/"</span> << issueIn_ << <span class="stringliteral">" "</span></div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  << <a class="code" href="namespaceripple.html#af9776f187d3686a7fba4c2d2fbeebdf4">to_string</a>(offer->amount().out) << <span class="stringliteral">"/"</span> << issueOut_;</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> offer;</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</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>  JLOG(j_.<a class="code" href="classbeast_1_1Journal.html#a49b0713e65bb8e2c51b76fbf16252afe">error</a>()) << <span class="stringliteral">"AMMLiquidity::getOffer, failed"</span>;</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  </div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> std::nullopt;</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>  </div>
|
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">template</span> <span class="keyword">class </span><a class="code" href="classripple_1_1AMMLiquidity.html">AMMLiquidity<STAmount, STAmount></a>;</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="keyword">template</span> <span class="keyword">class </span><a class="code" href="classripple_1_1AMMLiquidity.html">AMMLiquidity<IOUAmount, IOUAmount></a>;</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">template</span> <span class="keyword">class </span><a class="code" href="classripple_1_1AMMLiquidity.html">AMMLiquidity<XRPAmount, IOUAmount></a>;</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">template</span> <span class="keyword">class </span><a class="code" href="classripple_1_1AMMLiquidity.html">AMMLiquidity<IOUAmount, XRPAmount></a>;</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="comment">// namespace ripple</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassripple_1_1AMMLiquidity_html_a55c985379a5b167aff96d9c7c11e5fef"><div class="ttname"><a href="classripple_1_1AMMLiquidity.html#a55c985379a5b167aff96d9c7c11e5fef">ripple::AMMLiquidity::maxOffer</a></div><div class="ttdeci">AMMOffer< TIn, TOut > maxOffer(TAmounts< TIn, TOut > const &balances) const</div><div class="ttdoc">Generate max offer.</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8cpp_source.html#l00110">AMMLiquidity.cpp:110</a></div></div>
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<div class="ttc" id="aclassripple_1_1Issue_html"><div class="ttname"><a href="classripple_1_1Issue.html">ripple::Issue</a></div><div class="ttdoc">A currency issued by an account.</div><div class="ttdef"><b>Definition:</b> <a href="Issue_8h_source.html#l00035">Issue.h:35</a></div></div>
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<div class="ttc" id="aexception_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/error/exception.html">std::exception</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_abbe082bd27ca0f1d1365af2824e4f85b"><div class="ttname"><a href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">beast::Journal::trace</a></div><div class="ttdeci">Stream trace() const</div><div class="ttdoc">Severity stream access functions.</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00309">Journal.h:309</a></div></div>
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<div class="ttc" id="aoverflow_error_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/error/overflow_error.html">std::overflow_error</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="aclassripple_1_1STAmount_html_a5f4f7f30f981c8c1c82baceac35a740a"><div class="ttname"><a href="classripple_1_1STAmount.html#a5f4f7f30f981c8c1c82baceac35a740a">ripple::STAmount::cMaxNative</a></div><div class="ttdeci">static const std::uint64_t cMaxNative</div><div class="ttdef"><b>Definition:</b> <a href="STAmount_8h_source.html#l00068">STAmount.h:68</a></div></div>
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<div class="ttc" id="aclassripple_1_1AMMLiquidity_html_a90e392457e7f89d2ee5e2a5398b29aac"><div class="ttname"><a href="classripple_1_1AMMLiquidity.html#a90e392457e7f89d2ee5e2a5398b29aac">ripple::AMMLiquidity::fetchBalances</a></div><div class="ttdeci">TAmounts< TIn, TOut > fetchBalances(ReadView const &view) const</div><div class="ttdoc">Fetches current AMM balances.</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8cpp_source.html#l00046">AMMLiquidity.cpp:46</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a7cc64e12723fbc9606d85442a2569feda13b5bfe96f3e2fe411c9f66f4a582adf"><div class="ttname"><a href="namespaceripple.html#a7cc64e12723fbc9606d85442a2569feda13b5bfe96f3e2fe411c9f66f4a582adf">ripple::QualityDirection::in</a></div><div class="ttdeci">@ in</div></div>
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<div class="ttc" id="aclassripple_1_1AMMLiquidity_html_a4f40426bb36529ccba8ef2768e3c3bc9"><div class="ttname"><a href="classripple_1_1AMMLiquidity.html#a4f40426bb36529ccba8ef2768e3c3bc9">ripple::AMMLiquidity::getOffer</a></div><div class="ttdeci">std::optional< AMMOffer< TIn, TOut > > getOffer(ReadView const &view, std::optional< Quality > const &clobQuality) const</div><div class="ttdoc">Generate AMM offer.</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8cpp_source.html#l00122">AMMLiquidity.cpp:122</a></div></div>
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<div class="ttc" id="aclassripple_1_1IOUAmount_html"><div class="ttname"><a href="classripple_1_1IOUAmount.html">ripple::IOUAmount</a></div><div class="ttdoc">Floating point representation of amounts with high dynamic range.</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00043">IOUAmount.h:43</a></div></div>
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<div class="ttc" id="aclassripple_1_1AMMLiquidity_html_ab64d5ee790ade8eea80a94449a0e120c"><div class="ttname"><a href="classripple_1_1AMMLiquidity.html#ab64d5ee790ade8eea80a94449a0e120c">ripple::AMMLiquidity::AMMLiquidity</a></div><div class="ttdeci">AMMLiquidity(ReadView const &view, AccountID const &ammAccountID, std::uint32_t tradingFee, Issue const &in, Issue const &out, AMMContext &ammContext, beast::Journal j)</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8cpp_source.html#l00026">AMMLiquidity.cpp:26</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a768092086ea18d2dbeb64efb9fa12ba5"><div class="ttname"><a href="namespaceripple.html#a768092086ea18d2dbeb64efb9fa12ba5">ripple::ammAccountID</a></div><div class="ttdeci">AccountID ammAccountID(std::uint16_t prefix, uint256 const &parentHash, uint256 const &ammID)</div><div class="ttdoc">Calculate AMM account ID.</div><div class="ttdef"><b>Definition:</b> <a href="AMMCore_8cpp_source.html#l00030">AMMCore.cpp:30</a></div></div>
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<div class="ttc" id="aclassripple_1_1AMMLiquidity_html_afc3099a63d626321df693638c4b09b34"><div class="ttname"><a href="classripple_1_1AMMLiquidity.html#afc3099a63d626321df693638c4b09b34">ripple::AMMLiquidity::generateFibSeqOffer</a></div><div class="ttdeci">TAmounts< TIn, TOut > generateFibSeqOffer(TAmounts< TIn, TOut > const &balances) const</div><div class="ttdoc">Generate AMM offers with the offer size based on Fibonacci sequence.</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8cpp_source.html#l00059">AMMLiquidity.cpp:59</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< 160, detail::AccountIDTag ></a></div></div>
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<div class="ttc" id="anamespaceripple_html_a7cc64e12723fbc9606d85442a2569fedac68271a63ddbc431c307beb7d2918275"><div class="ttname"><a href="namespaceripple.html#a7cc64e12723fbc9606d85442a2569fedac68271a63ddbc431c307beb7d2918275">ripple::QualityDirection::out</a></div><div class="ttdeci">@ out</div></div>
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<div class="ttc" id="anamespaceripple_html_a35d75f3e8c1d99beb8c834d767070d8c"><div class="ttname"><a href="namespaceripple.html#a35d75f3e8c1d99beb8c834d767070d8c">ripple::getIssue</a></div><div class="ttdeci">Issue getIssue(T const &amt)</div><div class="ttdef"><b>Definition:</b> <a href="AmountConversions_8h_source.html#l00156">AmountConversions.h:156</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_a7bdc84d96ec45a7762712eb35dd18f26"><div class="ttname"><a href="namespaceripple.html#a7bdc84d96ec45a7762712eb35dd18f26">ripple::maxAmount</a></div><div class="ttdeci">constexpr T maxAmount()</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8cpp_source.html#l00098">AMMLiquidity.cpp:98</a></div></div>
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<div class="ttc" id="aclassripple_1_1AMMContext_html"><div class="ttname"><a href="classripple_1_1AMMContext.html">ripple::AMMContext</a></div><div class="ttdoc">Maintains AMM info per overall payment engine execution and individual iteration.</div><div class="ttdef"><b>Definition:</b> <a href="AMMContext_8h_source.html#l00035">AMMContext.h:35</a></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#l00045">STAmount.h:45</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_a49b0713e65bb8e2c51b76fbf16252afe"><div class="ttname"><a href="classbeast_1_1Journal.html#a49b0713e65bb8e2c51b76fbf16252afe">beast::Journal::error</a></div><div class="ttdeci">Stream error() const</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00333">Journal.h:333</a></div></div>
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<div class="ttc" id="aclassripple_1_1AMMOffer_html"><div class="ttname"><a href="classripple_1_1AMMOffer.html">ripple::AMMOffer</a></div><div class="ttdoc">Represents synthetic AMM offer in BookStep.</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8h_source.html#l00035">AMMLiquidity.h:35</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html"><div class="ttname"><a href="classbeast_1_1Journal.html">beast::Journal</a></div><div class="ttdoc">A generic endpoint for log messages.</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00058">Journal.h:58</a></div></div>
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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::uint32_t</a></div></div>
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<div class="ttc" id="aclassripple_1_1ReadView_html"><div class="ttname"><a href="classripple_1_1ReadView.html">ripple::ReadView</a></div><div class="ttdoc">A view into a ledger.</div><div class="ttdef"><b>Definition:</b> <a href="ReadView_8h_source.html#l00054">ReadView.h:54</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="aclassripple_1_1AMMLiquidity_html"><div class="ttname"><a href="classripple_1_1AMMLiquidity.html">ripple::AMMLiquidity</a></div><div class="ttdoc">AMMLiquidity class provides AMM offers to BookStep class.</div><div class="ttdef"><b>Definition:</b> <a href="AMMLiquidity_8h_source.html#l00052">AMMLiquidity.h:52</a></div></div>
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<div class="ttc" id="aclassripple_1_1AMMContext_html_a79ed6fed6ecbae8ca4dd7fdece63ce62"><div class="ttname"><a href="classripple_1_1AMMContext.html#a79ed6fed6ecbae8ca4dd7fdece63ce62">ripple::AMMContext::MaxIterations</a></div><div class="ttdeci">constexpr static std::uint8_t MaxIterations</div><div class="ttdef"><b>Definition:</b> <a href="AMMContext_8h_source.html#l00041">AMMContext.h:41</a></div></div>
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<div class="ttc" id="aoptional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_a556228cb60bcf405c225d3f64b7b01ae"><div class="ttname"><a href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">beast::Journal::debug</a></div><div class="ttdeci">Stream debug() const</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00315">Journal.h:315</a></div></div>
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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="aclassripple_1_1STAmount_html_a84ebd351b1c12b5467b59c9cd4d1640f"><div class="ttname"><a href="classripple_1_1STAmount.html#a84ebd351b1c12b5467b59c9cd4d1640f">ripple::STAmount::cMaxOffset</a></div><div class="ttdeci">static const int cMaxOffset</div><div class="ttdef"><b>Definition:</b> <a href="STAmount_8h_source.html#l00063">STAmount.h:63</a></div></div>
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<div class="ttc" id="anamespaceripple_html_ac7da6b05048137df6afafbcb4af6343a"><div class="ttname"><a href="namespaceripple.html#ac7da6b05048137df6afafbcb4af6343a">ripple::ammAccountHolds</a></div><div class="ttdeci">STAmount ammAccountHolds(ReadView const &view, AccountID const &ammAccountID, Issue const &issue)</div><div class="ttdoc">Returns total amount held by AMM for the given token.</div><div class="ttdef"><b>Definition:</b> <a href="AMMUtils_8cpp_source.html#l00166">AMMUtils.cpp:166</a></div></div>
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<div class="ttc" id="aclassripple_1_1STAmount_html_af88c7b9a2ee49408f4fd17e1ee9f20df"><div class="ttname"><a href="classripple_1_1STAmount.html#af88c7b9a2ee49408f4fd17e1ee9f20df">ripple::STAmount::cMaxValue</a></div><div class="ttdeci">static const std::uint64_t cMaxValue</div><div class="ttdef"><b>Definition:</b> <a href="STAmount_8h_source.html#l00067">STAmount.h:67</a></div></div>
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<div class="ttc" id="awhat_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/error/exception/what.html">std::overflow_error::what</a></div><div class="ttdeci">T what(T... args)</div></div>
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<div class="ttc" id="aclassripple_1_1XRPAmount_html"><div class="ttname"><a href="classripple_1_1XRPAmount.html">ripple::XRPAmount</a></div><div class="ttdef"><b>Definition:</b> <a href="XRPAmount_8h_source.html#l00046">XRPAmount.h:46</a></div></div>
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