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<li class="navelem"><a class="el" href="dir_120ed4da3e3217b1e7fc0b4f48568e79.html">test</a></li><li class="navelem"><a class="el" href="dir_354330c8aa73f5a2ebe2c490e5cf38ef.html">basics</a></li> </ul>
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<div class="title">mulDiv_test.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) 2012-2016 Ripple Labs Inc.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <ripple/basics/mulDiv.h></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <ripple/beast/unit_test.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> <span class="keyword">namespace </span>test {</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="structripple_1_1test_1_1mulDiv__test.html"> 26</a></span> <span class="keyword">struct </span><a class="code" href="structripple_1_1test_1_1mulDiv__test.html">mulDiv_test</a> : beast::unit_test::suite</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="structripple_1_1test_1_1mulDiv__test.html#a58e67a9e1b56b7d4ff42eb0b4f89709f"> 28</a></span>  <span class="keywordtype">void</span> <a class="code" href="structripple_1_1test_1_1mulDiv__test.html#a58e67a9e1b56b7d4ff42eb0b4f89709f">run</a>()<span class="keyword"> override</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">const</span> <span class="keyword">auto</span> max = <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/numeric_limits/max.html">std::numeric_limits<std::uint64_t>::max</a>();</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">const</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint64_t</a> max32 = <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/numeric_limits/max.html">std::numeric_limits<std::uint32_t>::max</a>();</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">auto</span> result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(85, 20, 5);</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  BEAST_EXPECT(result.first && result.second == 340);</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(20, 85, 5);</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  BEAST_EXPECT(result.first && result.second == 340);</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(0, max - 1, max - 3);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  BEAST_EXPECT(result.first && result.second == 0);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(max - 1, 0, max - 3);</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  BEAST_EXPECT(result.first && result.second == 0);</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>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(max, 2, max / 2);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  BEAST_EXPECT(result.first && result.second == 4);</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(max, 1000, max / 1000);</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  BEAST_EXPECT(result.first && result.second == 1000000);</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(max, 1000, max / 1001);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  BEAST_EXPECT(result.first && result.second == 1001000);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(max32 + 1, max32 + 1, 5);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  BEAST_EXPECT(result.first && result.second == 3689348814741910323);</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// Overflow</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  result = <a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>(max - 1, max - 2, 5);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  BEAST_EXPECT(!result.first && result.second == max);</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>  </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <a class="code" href="namespaceripple_1_1test.html#a52909fdbfa7f29626f24005ed12e6ef4">BEAST_DEFINE_TESTSUITE</a>(<a class="code" href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">mulDiv</a>, ripple_basics, <a class="code" href="namespaceripple.html">ripple</a>);</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> } <span class="comment">// namespace test</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> } <span class="comment">// namespace ripple</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceripple_1_1test_html_a52909fdbfa7f29626f24005ed12e6ef4"><div class="ttname"><a href="namespaceripple_1_1test.html#a52909fdbfa7f29626f24005ed12e6ef4">ripple::test::BEAST_DEFINE_TESTSUITE</a></div><div class="ttdeci">BEAST_DEFINE_TESTSUITE(AccountDelete, app, ripple)</div></div>
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<div class="ttc" id="astructripple_1_1test_1_1mulDiv__test_html"><div class="ttname"><a href="structripple_1_1test_1_1mulDiv__test.html">ripple::test::mulDiv_test</a></div><div class="ttdef"><b>Definition:</b> <a href="mulDiv__test_8cpp_source.html#l00026">mulDiv_test.cpp:26</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::uint64_t</a></div></div>
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<div class="ttc" id="astructripple_1_1test_1_1mulDiv__test_html_a58e67a9e1b56b7d4ff42eb0b4f89709f"><div class="ttname"><a href="structripple_1_1test_1_1mulDiv__test.html#a58e67a9e1b56b7d4ff42eb0b4f89709f">ripple::test::mulDiv_test::run</a></div><div class="ttdeci">void run() override</div><div class="ttdef"><b>Definition:</b> <a href="mulDiv__test_8cpp_source.html#l00028">mulDiv_test.cpp:28</a></div></div>
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<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a2b0f34def9a9d52a662228e4562fb7d4"><div class="ttname"><a href="namespaceripple.html#a2b0f34def9a9d52a662228e4562fb7d4">ripple::mulDiv</a></div><div class="ttdeci">std::pair< bool, Dest > mulDiv(Source1 value, Dest mul, Source2 div)</div><div class="ttdef"><b>Definition:</b> <a href="FeeUnits_8h_source.html#l00487">FeeUnits.h:487</a></div></div>
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<div class="ttc" id="amax_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/numeric_limits/max.html">std::numeric_limits::max</a></div><div class="ttdeci">T max(T... args)</div></div>
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