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manojsdoshi
2020-04-24 01:09:47 +00:00
parent 4ad595bf18
commit 430f6c0cf3
2864 changed files with 304301 additions and 292875 deletions
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IOUAmount_8cpp_source.html
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@@ -88,12 +88,12 @@ $(function() {
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment">//==============================================================================</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/contract.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/IOUAmount.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/IOUAmount.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/contract.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;boost/multiprecision/cpp_int.hpp&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a>&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/numeric.html">numeric</a>&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a>&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a>&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/numeric.html">numeric</a>&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/stdexcept.html">stdexcept</a>&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
@@ -106,7 +106,7 @@ $(function() {
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespaceripple.html#afc8ea9e4afbdfb30fe2881c2db752d78"> 35</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <span class="keyword">const</span> <a class="code" href="namespaceripple.html#afc8ea9e4afbdfb30fe2881c2db752d78">maxExponent</a> = 80;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd"> 38</a></span>&#160;<a class="code" href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd">IOUAmount::normalize</a> ()</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd"> 38</a></span>&#160;<a class="code" href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd">IOUAmount::normalize</a>()</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;{</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">mantissa_</a> == 0)</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; {</div>
@@ -128,7 +128,7 @@ $(function() {
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordflow">while</span> (<a class="code" href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">mantissa_</a> &gt; <a class="code" href="namespaceripple.html#ac146a71981d1f4b61741b00f8bc9f075">maxMantissa</a>)</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1IOUAmount.html#aea9cd345c8da57dbbd2372ff434bfb23">exponent_</a> &gt;= <a class="code" href="namespaceripple.html#afc8ea9e4afbdfb30fe2881c2db752d78">maxExponent</a>)</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; Throw&lt;std::overflow_error&gt; (<span class="stringliteral">&quot;IOUAmount::normalize&quot;</span>);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; Throw&lt;std::overflow_error&gt;(<span class="stringliteral">&quot;IOUAmount::normalize&quot;</span>);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">mantissa_</a> /= 10;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; ++<a class="code" href="classripple_1_1IOUAmount.html#aea9cd345c8da57dbbd2372ff434bfb23">exponent_</a>;</div>
@@ -141,14 +141,14 @@ $(function() {
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1IOUAmount.html#aea9cd345c8da57dbbd2372ff434bfb23">exponent_</a> &gt; <a class="code" href="namespaceripple.html#afc8ea9e4afbdfb30fe2881c2db752d78">maxExponent</a>)</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; Throw&lt;std::overflow_error&gt; (<span class="stringliteral">&quot;value overflow&quot;</span>);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; Throw&lt;std::overflow_error&gt;(<span class="stringliteral">&quot;value overflow&quot;</span>);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordflow">if</span> (negative)</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">mantissa_</a> = -<a class="code" href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">mantissa_</a>;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;}</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a>&amp;</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classripple_1_1IOUAmount.html#a94bdd4a08732aed55054592776aab6f9"> 80</a></span>&#160;<a class="code" href="classripple_1_1IOUAmount.html#a94bdd4a08732aed55054592776aab6f9">IOUAmount::operator+= </a>(<a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> <span class="keyword">const</span>&amp; other)</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classripple_1_1IOUAmount.html#a94bdd4a08732aed55054592776aab6f9"> 80</a></span>&#160;<a class="code" href="classripple_1_1IOUAmount.html#a94bdd4a08732aed55054592776aab6f9">IOUAmount::operator+=</a>(<a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> <span class="keyword">const</span>&amp; other)</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;{</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordflow">if</span> (other == beast::zero)</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
@@ -184,7 +184,7 @@ $(function() {
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd">normalize</a> ();</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd">normalize</a>();</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;}</div>
@@ -220,21 +220,21 @@ $(function() {
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;}</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="namespaceripple.html#a7fdda52cfb8e7dbaed475a5fe6ce58b8"> 152</a></span>&#160;<a class="code" href="namespaceripple.html#a96888695e8d79474e080c334f149e30a">to_string</a> (<a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> <span class="keyword">const</span>&amp; amount)</div>
<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="namespaceripple.html#a7fdda52cfb8e7dbaed475a5fe6ce58b8"> 152</a></span>&#160;<a class="code" href="namespaceripple.html#a96888695e8d79474e080c334f149e30a">to_string</a>(<a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> <span class="keyword">const</span>&amp; amount)</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;{</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="comment">// keep full internal accuracy, but make more human friendly if possible</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordflow">if</span> (amount == beast::zero)</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">return</span> <span class="stringliteral">&quot;0&quot;</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; </div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordtype">int</span> <span class="keyword">const</span> exponent = amount.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a> ();</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keyword">auto</span> mantissa = amount.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a> ();</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordtype">int</span> <span class="keyword">const</span> exponent = amount.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a>();</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keyword">auto</span> mantissa = amount.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a>();</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="comment">// Use scientific notation for exponents that are too small or too large</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordflow">if</span> (((exponent != 0) &amp;&amp; ((exponent &lt; -25) || (exponent &gt; -5))))</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; {</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> ret = <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a> (mantissa);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (1, <span class="charliteral">&#39;e&#39;</span>);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a> (exponent));</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> ret = <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a>(mantissa);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(1, <span class="charliteral">&#39;e&#39;</span>);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a>(exponent));</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; }</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; </div>
@@ -246,215 +246,209 @@ $(function() {
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; negative = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; assert (exponent + 43 &gt; 0);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; assert(exponent + 43 &gt; 0);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordtype">size_t</span> <span class="keyword">const</span> pad_prefix = 27;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordtype">size_t</span> <span class="keyword">const</span> pad_suffix = 23;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span> raw_value (<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a> (mantissa));</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span> raw_value(<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a>(mantissa));</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> val;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; </div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/reserve.html">reserve</a> (raw_value.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/size.html">length</a> () + pad_prefix + pad_suffix);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (pad_prefix, <span class="charliteral">&#39;0&#39;</span>);</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (raw_value);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (pad_suffix, <span class="charliteral">&#39;0&#39;</span>);</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/reserve.html">reserve</a>(raw_value.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/size.html">length</a>() + pad_prefix + pad_suffix);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(pad_prefix, <span class="charliteral">&#39;0&#39;</span>);</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(raw_value);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(pad_suffix, <span class="charliteral">&#39;0&#39;</span>);</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordtype">size_t</span> <span class="keyword">const</span> offset (exponent + 43);</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordtype">size_t</span> <span class="keyword">const</span> offset(exponent + 43);</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keyword">auto</span> pre_from (val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a> ());</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> pre_to (val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a> () + offset);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keyword">auto</span> pre_from(val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a>());</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> pre_to(val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a>() + offset);</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> post_from (val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a> () + offset);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keyword">auto</span> post_to (val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/end.html">end</a> ());</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> post_from(val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a>() + offset);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keyword">auto</span> post_to(val.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/end.html">end</a>());</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="comment">// Crop leading zeroes. Take advantage of the fact that there&#39;s always a</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="comment">// fixed amount of leading zeroes and skip them.</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordflow">if</span> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a> (pre_from, pre_to) &gt; pad_prefix)</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordflow">if</span> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(pre_from, pre_to) &gt; pad_prefix)</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; pre_from += pad_prefix;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; assert (post_to &gt;= post_from);</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; assert(post_to &gt;= post_from);</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; pre_from = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a> (pre_from, pre_to,</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; [](<span class="keywordtype">char</span> c)</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; {</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="keywordflow">return</span> c != <span class="charliteral">&#39;0&#39;</span>;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; });</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="comment">// Crop trailing zeroes. Take advantage of the fact that there&#39;s always a</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="comment">// fixed amount of trailing zeroes and skip them.</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="keywordflow">if</span> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a> (post_from, post_to) &gt; pad_suffix)</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; post_to -= pad_suffix;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; assert (post_to &gt;= post_from);</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; post_to = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a>(</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/make_reverse_iterator.html">std::make_reverse_iterator</a> (post_to),</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/make_reverse_iterator.html">std::make_reverse_iterator</a> (post_from),</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; [](<span class="keywordtype">char</span> c)</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; {</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordflow">return</span> c != <span class="charliteral">&#39;0&#39;</span>;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; }).base();</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> ret;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordflow">if</span> (negative)</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (1, <span class="charliteral">&#39;-&#39;</span>);</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; pre_from = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a>(pre_from, pre_to, [](<span class="keywordtype">char</span> c) { <span class="keywordflow">return</span> c != <span class="charliteral">&#39;0&#39;</span>; });</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="comment">// Crop trailing zeroes. Take advantage of the fact that there&#39;s always a</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="comment">// fixed amount of trailing zeroes and skip them.</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="keywordflow">if</span> (<a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(post_from, post_to) &gt; pad_suffix)</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; post_to -= pad_suffix;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; </div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; assert(post_to &gt;= post_from);</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; </div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; post_to = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a>(</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/make_reverse_iterator.html">std::make_reverse_iterator</a>(post_to),</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/make_reverse_iterator.html">std::make_reverse_iterator</a>(post_from),</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; [](<span class="keywordtype">char</span> c) { <span class="keywordflow">return</span> c != <span class="charliteral">&#39;0&#39;</span>; })</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; .base();</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> ret;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; </div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keywordflow">if</span> (negative)</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(1, <span class="charliteral">&#39;-&#39;</span>);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; </div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <span class="comment">// Assemble the output:</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="keywordflow">if</span> (pre_from == pre_to)</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(1, <span class="charliteral">&#39;0&#39;</span>);</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(pre_from, pre_to);</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="comment">// Assemble the output:</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keywordflow">if</span> (pre_from == pre_to)</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (1, <span class="charliteral">&#39;0&#39;</span>);</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(pre_from, pre_to);</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keywordflow">if</span> (post_to != post_from)</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(1, <span class="charliteral">&#39;.&#39;</span>);</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a>(post_from, post_to);</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; }</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordflow">if</span> (post_to != post_from)</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; {</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (1, <span class="charliteral">&#39;.&#39;</span>);</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; ret.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">append</a> (post_from, post_to);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; }</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; </div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160;}</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160;IOUAmount</div>
<div class="line"><a name="l00248"></a><span class="lineno"><a class="line" href="namespaceripple.html#aaed451aa78786841714de20f3f345f23"> 248</a></span>&#160;<a class="code" href="namespaceripple.html#aaed451aa78786841714de20f3f345f23">mulRatio</a> (</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> <span class="keyword">const</span>&amp; amt,</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> num,</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> den,</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keywordtype">bool</span> roundUp)</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;{</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keyword">using namespace </span>boost::multiprecision;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; </div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="keywordflow">if</span> (!den)</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; Throw&lt;std::runtime_error&gt; (<span class="stringliteral">&quot;division by zero&quot;</span>);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; </div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="comment">// A vector with the value 10^index for indexes from 0 to 29</span></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="comment">// The largest intermediate value we expect is 2^96, which</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="comment">// is less than 10^29</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> <span class="keyword">const</span> powerTable = []</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; {</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint128_t&gt;</a> result;</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; result.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector/reserve.html">reserve</a> (30); <span class="comment">// 2^96 is largest intermediate result size</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; uint128_t cur (1);</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 30; ++i)</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; {</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; result.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a> (cur);</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; cur *= 10;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; };</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; }();</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; </div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="comment">// Return floor(log10(v))</span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; <span class="comment">// Note: Returns -1 for v == 0</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> log10Floor = [](uint128_t <span class="keyword">const</span>&amp; v)</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; {</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="comment">// Find the index of the first element &gt;= the requested element, the index</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="comment">// is the log of the element in the log table.</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> l = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/lower_bound.html">std::lower_bound</a> (powerTable.begin (), powerTable.end (), v);</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <span class="keywordtype">int</span> index = <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a> (powerTable.begin (), l);</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="comment">// If we&#39;re not equal, subtract to get the floor</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keywordflow">if</span> (*l != v)</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; --index;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keywordflow">return</span> index;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; };</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="comment">// Return ceil(log10(v))</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> log10Ceil = [](uint128_t <span class="keyword">const</span>&amp; v)</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; {</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="comment">// Find the index of the first element &gt;= the requested element, the index</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="comment">// is the log of the element in the log table.</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> l = <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/lower_bound.html">std::lower_bound</a> (powerTable.begin (), powerTable.end (), v);</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <span class="keywordflow">return</span> int(<a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a> (powerTable.begin (), l));</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; };</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; </div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> <span class="keyword">const</span> fl64 =</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; log10Floor (<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/numeric_limits.html">std::numeric_limits&lt;std::int64_t&gt;::max</a> ());</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160;}</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; </div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160;IOUAmount</div>
<div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="namespaceripple.html#aaed451aa78786841714de20f3f345f23"> 242</a></span>&#160;<a class="code" href="namespaceripple.html#aaed451aa78786841714de20f3f345f23">mulRatio</a>(</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> <span class="keyword">const</span>&amp; amt,</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> num,</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> den,</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordtype">bool</span> roundUp)</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160;{</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keyword">using namespace </span>boost::multiprecision;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordflow">if</span> (!den)</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; Throw&lt;std::runtime_error&gt;(<span class="stringliteral">&quot;division by zero&quot;</span>);</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; </div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="comment">// A vector with the value 10^index for indexes from 0 to 29</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="comment">// The largest intermediate value we expect is 2^96, which</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; <span class="comment">// is less than 10^29</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> <span class="keyword">const</span> powerTable = [] {</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint128_t&gt;</a> result;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; result.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector/reserve.html">reserve</a>(30); <span class="comment">// 2^96 is largest intermediate result size</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; uint128_t cur(1);</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 30; ++i)</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; {</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; result.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(cur);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; cur *= 10;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; };</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; }();</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="comment">// Return floor(log10(v))</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <span class="comment">// Note: Returns -1 for v == 0</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> log10Floor = [](uint128_t <span class="keyword">const</span>&amp; v) {</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="comment">// Find the index of the first element &gt;= the requested element, the</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="comment">// index is the log of the element in the log table.</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> l =</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/lower_bound.html">std::lower_bound</a>(powerTable.begin(), powerTable.end(), v);</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="keywordtype">int</span> index = <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(powerTable.begin(), l);</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; <span class="comment">// If we&#39;re not equal, subtract to get the floor</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">if</span> (*l != v)</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; --index;</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="keywordflow">return</span> index;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; };</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <span class="comment">// Return ceil(log10(v))</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> log10Ceil = [](uint128_t <span class="keyword">const</span>&amp; v) {</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="comment">// Find the index of the first element &gt;= the requested element, the</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="comment">// index is the log of the element in the log table.</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> l =</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/lower_bound.html">std::lower_bound</a>(powerTable.begin(), powerTable.end(), v);</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keywordflow">return</span> int(<a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(powerTable.begin(), l));</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; };</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; </div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> <span class="keyword">const</span> fl64 =</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; log10Floor(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/numeric_limits.html">std::numeric_limits&lt;std::int64_t&gt;::max</a>());</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; </div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keywordtype">bool</span> <span class="keyword">const</span> neg = amt.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a>() &lt; 0;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; uint128_t <span class="keyword">const</span> den128(den);</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="comment">// a 32 value * a 64 bit value and stored in a 128 bit value. This will</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="comment">// never overflow</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; uint128_t <span class="keyword">const</span> mul =</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; uint128_t(neg ? -amt.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a>() : amt.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a>()) * uint128_t(num);</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; </div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="keywordtype">bool</span> <span class="keyword">const</span> neg = amt.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a> () &lt; 0;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; uint128_t <span class="keyword">const</span> den128 (den);</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <span class="comment">// a 32 value * a 64 bit value and stored in a 128 bit value. This will never overflow</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; uint128_t <span class="keyword">const</span> mul =</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; uint128_t (neg ? -amt.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a> () : amt.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a> ()) * uint128_t (num);</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <span class="keyword">auto</span> low = mul / den128;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; uint128_t rem (mul - low * den128);</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; </div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="keywordtype">int</span> exponent = amt.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a> ();</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="keywordflow">if</span> (rem)</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; {</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="comment">// Mathematically, the result is low + rem/den128. However, since this</span></div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; <span class="comment">// uses integer division rem/den128 will be zero. Scale the result so</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <span class="comment">// low does not overflow the largest amount we can store in the mantissa</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="comment">// and (rem/den128) is as large as possible. Scale by multiplying low</span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="comment">// and rem by 10 and subtracting one from the exponent. We could do this</span></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; <span class="comment">// with a loop, but it&#39;s more efficient to use logarithms.</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> roomToGrow = fl64 - log10Ceil (low);</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="keywordflow">if</span> (roomToGrow &gt; 0)</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; {</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; exponent -= roomToGrow;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; low *= powerTable[roomToGrow];</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; rem *= powerTable[roomToGrow];</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; }</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> addRem = rem / den128;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; low += addRem;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; rem = rem - addRem * den128;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; }</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; <span class="comment">// The largest result we can have is ~2^95, which overflows the 64 bit</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; <span class="comment">// result we can store in the mantissa. Scale result down by dividing by ten</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; <span class="comment">// and adding one to the exponent until the low will fit in the 64-bit</span></div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; <span class="comment">// mantissa. Use logarithms to avoid looping.</span></div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="keywordtype">bool</span> hasRem = bool(rem);</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> mustShrink = log10Ceil (low) - fl64;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; <span class="keywordflow">if</span> (mustShrink &gt; 0)</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; {</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; uint128_t <span class="keyword">const</span> sav (low);</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; exponent += mustShrink;</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; low /= powerTable[mustShrink];</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="keywordflow">if</span> (!hasRem)</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; hasRem = bool(sav - low * powerTable[mustShrink]);</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="keyword">auto</span> low = mul / den128;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; uint128_t rem(mul - low * den128);</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; </div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; <span class="keywordtype">int</span> exponent = amt.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a>();</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; </div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; <span class="keywordflow">if</span> (rem)</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; {</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; <span class="comment">// Mathematically, the result is low + rem/den128. However, since this</span></div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="comment">// uses integer division rem/den128 will be zero. Scale the result so</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="comment">// low does not overflow the largest amount we can store in the mantissa</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="comment">// and (rem/den128) is as large as possible. Scale by multiplying low</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="comment">// and rem by 10 and subtracting one from the exponent. We could do this</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="comment">// with a loop, but it&#39;s more efficient to use logarithms.</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> roomToGrow = fl64 - log10Ceil(low);</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; <span class="keywordflow">if</span> (roomToGrow &gt; 0)</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; exponent -= roomToGrow;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; low *= powerTable[roomToGrow];</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; rem *= powerTable[roomToGrow];</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; }</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> addRem = rem / den128;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; low += addRem;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; rem = rem - addRem * den128;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; }</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; </div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; <span class="comment">// The largest result we can have is ~2^95, which overflows the 64 bit</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="comment">// result we can store in the mantissa. Scale result down by dividing by ten</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="comment">// and adding one to the exponent until the low will fit in the 64-bit</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; <span class="comment">// mantissa. Use logarithms to avoid looping.</span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="keywordtype">bool</span> hasRem = bool(rem);</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> mustShrink = log10Ceil(low) - fl64;</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; <span class="keywordflow">if</span> (mustShrink &gt; 0)</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; {</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; uint128_t <span class="keyword">const</span> sav(low);</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; exponent += mustShrink;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; low /= powerTable[mustShrink];</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; <span class="keywordflow">if</span> (!hasRem)</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; hasRem = bool(sav - low * powerTable[mustShrink]);</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; }</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; </div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::int64_t</a> mantissa = low.convert_to&lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::int64_t</a>&gt;();</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; </div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="comment">// normalize before rounding</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; <span class="keywordflow">if</span> (neg)</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; mantissa *= -1;</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; </div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::int64_t</a> mantissa = low.convert_to&lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::int64_t</a>&gt; ();</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> result(mantissa, exponent);</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; </div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="comment">// normalize before rounding</span></div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="keywordflow">if</span> (neg)</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; mantissa *= -1;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; </div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> result (mantissa, exponent);</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; <span class="keywordflow">if</span> (hasRem)</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; {</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; <span class="comment">// handle rounding</span></div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; <span class="keywordflow">if</span> (roundUp &amp;&amp; !neg)</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <span class="keywordflow">if</span> (!result)</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; {</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> (<a class="code" href="namespaceripple.html#aca7b1f51d7bce99c5ad86334b8782755">minMantissa</a>, <a class="code" href="namespaceripple.html#af546168e0fe7a0afaa280c4aa29f9c57">minExponent</a>);</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; }</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="comment">// This addition cannot overflow because the mantissa is already normalized</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> (result.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a> () + 1, result.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a> ());</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; </div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="keywordflow">if</span> (!roundUp &amp;&amp; neg)</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; {</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="keywordflow">if</span> (!result)</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; {</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> (-<a class="code" href="namespaceripple.html#aca7b1f51d7bce99c5ad86334b8782755">minMantissa</a>, <a class="code" href="namespaceripple.html#af546168e0fe7a0afaa280c4aa29f9c57">minExponent</a>);</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; }</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; <span class="comment">// This subtraction cannot underflow because `result` is not zero</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a> (result.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a> () - 1, result.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a> ());</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; }</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; }</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; </div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160;}</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; </div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; </div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160;}</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="keywordflow">if</span> (hasRem)</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; {</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; <span class="comment">// handle rounding</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; <span class="keywordflow">if</span> (roundUp &amp;&amp; !neg)</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; {</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; <span class="keywordflow">if</span> (!result)</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a>(<a class="code" href="namespaceripple.html#aca7b1f51d7bce99c5ad86334b8782755">minMantissa</a>, <a class="code" href="namespaceripple.html#af546168e0fe7a0afaa280c4aa29f9c57">minExponent</a>);</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; }</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; <span class="comment">// This addition cannot overflow because the mantissa is already</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; <span class="comment">// normalized</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a>(result.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a>() + 1, result.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a>());</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; }</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; </div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <span class="keywordflow">if</span> (!roundUp &amp;&amp; neg)</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; {</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="keywordflow">if</span> (!result)</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; {</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a>(-<a class="code" href="namespaceripple.html#aca7b1f51d7bce99c5ad86334b8782755">minMantissa</a>, <a class="code" href="namespaceripple.html#af546168e0fe7a0afaa280c4aa29f9c57">minExponent</a>);</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; }</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; <span class="comment">// This subtraction cannot underflow because `result` is not zero</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1IOUAmount.html">IOUAmount</a>(result.<a class="code" href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">mantissa</a>() - 1, result.<a class="code" href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">exponent</a>());</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; }</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; }</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160;}</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; </div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160;} <span class="comment">// namespace ripple</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="anamespaceripple_html_aaed451aa78786841714de20f3f345f23"><div class="ttname"><a href="namespaceripple.html#aaed451aa78786841714de20f3f345f23">ripple::mulRatio</a></div><div class="ttdeci">IOUAmount mulRatio(IOUAmount const &amp;amt, std::uint32_t num, std::uint32_t den, bool roundUp)</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8cpp_source.html#l00248">IOUAmount.cpp:248</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a4123b52991469e91f146e23382f49d6c"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">ripple::IOUAmount::exponent</a></div><div class="ttdeci">int exponent() const noexcept</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00126">IOUAmount.h:126</a></div></div>
<div class="ttc" id="anamespaceripple_html_aaed451aa78786841714de20f3f345f23"><div class="ttname"><a href="namespaceripple.html#aaed451aa78786841714de20f3f345f23">ripple::mulRatio</a></div><div class="ttdeci">IOUAmount mulRatio(IOUAmount const &amp;amt, std::uint32_t num, std::uint32_t den, bool roundUp)</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8cpp_source.html#l00242">IOUAmount.cpp:242</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a4123b52991469e91f146e23382f49d6c"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a4123b52991469e91f146e23382f49d6c">ripple::IOUAmount::exponent</a></div><div class="ttdeci">int exponent() const noexcept</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00122">IOUAmount.h:122</a></div></div>
<div class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div><div class="ttdoc">STL class.</div></div>
<div class="ttc" id="areserve_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/reserve.html">std::string::reserve</a></div><div class="ttdeci">T reserve(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a6eb0c4cb3891601ef809e13c1088f3fd"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a6eb0c4cb3891601ef809e13c1088f3fd">ripple::IOUAmount::normalize</a></div><div class="ttdeci">void normalize()</div><div class="ttdoc">Adjusts the mantissa and exponent to the proper range.</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8cpp_source.html#l00038">IOUAmount.cpp:38</a></div></div>
@@ -470,8 +464,8 @@ $(function() {
<div class="ttc" id="apush_back_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">std::vector::push_back</a></div><div class="ttdeci">T push_back(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a54fe493cdec286f473c4f56e528dff8b"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a54fe493cdec286f473c4f56e528dff8b">ripple::IOUAmount::operator&lt;</a></div><div class="ttdeci">bool operator&lt;(IOUAmount const &amp;other) const</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8cpp_source.html#l00122">IOUAmount.cpp:122</a></div></div>
<div class="ttc" id="astdexcept_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/stdexcept.html">stdexcept</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a44f1b32037a68e67d02237a170c5425b"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">ripple::IOUAmount::mantissa_</a></div><div class="ttdeci">std::int64_t mantissa_</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00046">IOUAmount.h:46</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_aea9cd345c8da57dbbd2372ff434bfb23"><div class="ttname"><a href="classripple_1_1IOUAmount.html#aea9cd345c8da57dbbd2372ff434bfb23">ripple::IOUAmount::exponent_</a></div><div class="ttdeci">int exponent_</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00047">IOUAmount.h:47</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a44f1b32037a68e67d02237a170c5425b"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a44f1b32037a68e67d02237a170c5425b">ripple::IOUAmount::mantissa_</a></div><div class="ttdeci">std::int64_t mantissa_</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00045">IOUAmount.h:45</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_aea9cd345c8da57dbbd2372ff434bfb23"><div class="ttname"><a href="classripple_1_1IOUAmount.html#aea9cd345c8da57dbbd2372ff434bfb23">ripple::IOUAmount::exponent_</a></div><div class="ttdeci">int exponent_</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00046">IOUAmount.h:46</a></div></div>
<div class="ttc" id="ato_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a></div><div class="ttdeci">T to_string(T... args)</div></div>
<div class="ttc" id="anamespaceripple_html_afc8ea9e4afbdfb30fe2881c2db752d78"><div class="ttname"><a href="namespaceripple.html#afc8ea9e4afbdfb30fe2881c2db752d78">ripple::maxExponent</a></div><div class="ttdeci">static const int maxExponent</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8cpp_source.html#l00035">IOUAmount.cpp:35</a></div></div>
<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::int64_t</a></div></div>
@@ -479,7 +473,7 @@ $(function() {
<div class="ttc" id="aappend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/append.html">std::string::append</a></div><div class="ttdeci">T append(T... args)</div></div>
<div class="ttc" id="anamespaceripple_html_aca7b1f51d7bce99c5ad86334b8782755"><div class="ttname"><a href="namespaceripple.html#aca7b1f51d7bce99c5ad86334b8782755">ripple::minMantissa</a></div><div class="ttdeci">static const std::int64_t minMantissa</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8cpp_source.html#l00031">IOUAmount.cpp:31</a></div></div>
<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a7569b6462cf1abb6018ccfbe8428bfab"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">ripple::IOUAmount::mantissa</a></div><div class="ttdeci">std::int64_t mantissa() const noexcept</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00132">IOUAmount.h:132</a></div></div>
<div class="ttc" id="aclassripple_1_1IOUAmount_html_a7569b6462cf1abb6018ccfbe8428bfab"><div class="ttname"><a href="classripple_1_1IOUAmount.html#a7569b6462cf1abb6018ccfbe8428bfab">ripple::IOUAmount::mantissa</a></div><div class="ttdeci">std::int64_t mantissa() const noexcept</div><div class="ttdef"><b>Definition:</b> <a href="IOUAmount_8h_source.html#l00128">IOUAmount.h:128</a></div></div>
<div class="ttc" id="alower_bound_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/lower_bound.html">std::lower_bound</a></div><div class="ttdeci">T lower_bound(T... args)</div></div>
<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">std::string::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
<div class="ttc" id="aend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/end.html">std::string::end</a></div><div class="ttdeci">T end(T... args)</div></div>