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<div class="title">/data/users/hoss/faiss/FaissException.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"> * Copyright (c) Facebook, Inc. and its affiliates.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This source code is licensed under the MIT license found in the</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// -*- c++ -*-</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "FaissException.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <sstream></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">namespace </span>faiss {</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> FaissException::FaissException(<span class="keyword">const</span> std::string& m)</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  : msg(m) {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> }</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> FaissException::FaissException(<span class="keyword">const</span> std::string& m,</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* funcName,</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* file,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordtype">int</span> line) {</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordtype">int</span> size = snprintf(<span class="keyword">nullptr</span>, 0, <span class="stringliteral">"Error in %s at %s:%d: %s"</span>,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  funcName, file, line, m.c_str());</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  msg.resize(size + 1);</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  snprintf(&msg[0], msg.size(), <span class="stringliteral">"Error in %s at %s:%d: %s"</span>,</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  funcName, file, line, m.c_str());</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> }</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">const</span> <span class="keywordtype">char</span>*</div>
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<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classfaiss_1_1FaissException.html#ab75086632bbd1b8e13f002c8942a7672"> 31</a></span> <a class="code" href="classfaiss_1_1FaissException.html#ab75086632bbd1b8e13f002c8942a7672">FaissException::what</a>() const noexcept {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> msg.c_str();</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> }</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacefaiss.html#a542cf4d499962a3d7a0db924424d8870"> 35</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacefaiss.html#a542cf4d499962a3d7a0db924424d8870">handleExceptions</a>(</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  std::vector<std::pair<int, std::exception_ptr>>& exceptions) {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">if</span> (exceptions.size() == 1) {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="comment">// throw the single received exception directly</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  std::rethrow_exception(exceptions.front().second);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (exceptions.size() > 1) {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// multiple exceptions; aggregate them and return a single exception</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  std::stringstream ss;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& p : exceptions) {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">try</span> {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  std::rethrow_exception(p.second);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  } <span class="keywordflow">catch</span> (std::exception& ex) {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> (ex.what()) {</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// exception message available</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  ss << <span class="stringliteral">"Exception thrown from index "</span> << p.first << <span class="stringliteral">": "</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  << ex.what() << <span class="stringliteral">"\n"</span>;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// No message available</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  ss << <span class="stringliteral">"Unknown exception thrown from index "</span> << p.first << <span class="stringliteral">"\n"</span>;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  } <span class="keywordflow">catch</span> (...) {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  ss << <span class="stringliteral">"Unknown exception thrown from index "</span> << p.first << <span class="stringliteral">"\n"</span>;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">throw</span> <a class="code" href="classfaiss_1_1FaissException.html">FaissException</a>(ss.str());</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="ttc" id="namespacefaiss_html_a542cf4d499962a3d7a0db924424d8870"><div class="ttname"><a href="namespacefaiss.html#a542cf4d499962a3d7a0db924424d8870">faiss::handleExceptions</a></div><div class="ttdeci">void handleExceptions(std::vector< std::pair< int, std::exception_ptr >> &exceptions)</div><div class="ttdef"><b>Definition:</b> <a href="FaissException_8cpp_source.html#l00035">FaissException.cpp:35</a></div></div>
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<div class="ttc" id="classfaiss_1_1FaissException_html_ab75086632bbd1b8e13f002c8942a7672"><div class="ttname"><a href="classfaiss_1_1FaissException.html#ab75086632bbd1b8e13f002c8942a7672">faiss::FaissException::what</a></div><div class="ttdeci">const char * what() const noexceptoverride</div><div class="ttdoc">from std::exception </div><div class="ttdef"><b>Definition:</b> <a href="FaissException_8cpp_source.html#l00031">FaissException.cpp:31</a></div></div>
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<div class="ttc" id="classfaiss_1_1FaissException_html"><div class="ttname"><a href="classfaiss_1_1FaissException.html">faiss::FaissException</a></div><div class="ttdoc">Base class for Faiss exceptions. </div><div class="ttdef"><b>Definition:</b> <a href="FaissException_8h_source.html#l00021">FaissException.h:21</a></div></div>
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