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<li class="navelem"><a class="el" href="dir_df9c78dcf3f59a33b12284f95992a64b.html">ripple</a></li><li class="navelem"><a class="el" href="dir_5f536ab1985a8dcd28bcfd618bc58e92.html">basics</a></li> </ul>
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<div class="title">strHex.h</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, 2013 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="comment">// Copyright (c) 2009-2010 Satoshi Nakamoto</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// Copyright (c) 2011 The Bitcoin developers</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// Distributed under the MIT/X11 software license, see the accompanying</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// file license.txt or http://www.opensource.org/licenses/mit-license.php.</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifndef RIPPLE_BASICS_STRHEX_H_INCLUDED</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#define RIPPLE_BASICS_STRHEX_H_INCLUDED</span></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"> 28</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cassert.html">cassert</a>></span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/string.html">string</a>></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <boost/algorithm/hex.hpp></span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <boost/endian/conversion.hpp></span></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> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keywordtype">char</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="namespaceripple.html#a8f2e6be0441a70c9387e5b54cbf04e9b"> 42</a></span> <a class="code" href="namespaceripple.html#a8f2e6be0441a70c9387e5b54cbf04e9b">charHex</a> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digit)</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">static</span></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> xtab[] = <span class="stringliteral">"0123456789ABCDEF"</span>;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  assert (digit < 16);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> xtab[digit];</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</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="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">int</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <a class="code" href="namespaceripple.html#ac6bd4d1a123ab730216bc521e094720f">charUnHex</a> (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> c);</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="keyword">inline</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keywordtype">int</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="namespaceripple.html#a4a45dc2a0e6745d94de60e7b77bbc01e"> 62</a></span> <a class="code" href="namespaceripple.html#ac6bd4d1a123ab730216bc521e094720f">charUnHex</a> (<span class="keywordtype">char</span> c)</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>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#ac6bd4d1a123ab730216bc521e094720f">charUnHex</a> (<span class="keyword">static_cast<</span><span class="keywordtype">unsigned</span> <span class="keywordtype">char</span><span class="keyword">></span>(c));</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="l00068"></a><span class="lineno"> 68</span> <span class="keyword">template</span> <<span class="keyword">class</span> FwdIt></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
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<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8"> 70</a></span> <a class="code" href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8">strHex</a>(FwdIt begin, FwdIt end)</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  static_assert(</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/is_convertible.html">std::is_convertible</a><</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">typename</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/iterator_traits.html">std::iterator_traits<FwdIt>::iterator_category</a>,</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/iterator_tags.html">std::forward_iterator_tag</a>>::value,</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="stringliteral">"FwdIt must be a forward iterator"</span>);</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> result;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  result.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/reserve.html">reserve</a>(2 * <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(begin, end));</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  boost::algorithm::hex(begin, end, <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a>(result));</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> template <class T, class = decltype(std::declval<T>().<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a>())></div>
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<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="namespaceripple.html#aad719e86c8d9c67c9cc085c7203ef6a3"> 84</a></span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <a class="code" href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8">strHex</a>(T <span class="keyword">const</span>& from)</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8">strHex</a>(from.begin(), from.end());</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div>
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<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="namespaceripple.html#ac4cc16447862ee7e64d24567c29b3b1d"> 89</a></span> <span class="keyword">inline</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <a class="code" href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8">strHex</a> (<span class="keyword">const</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint64_t</a> uiHost)</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  uint64_t uBig = boost::endian::native_to_big (uiHost);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">auto</span> <span class="keyword">const</span> begin = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*) &uBig;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">auto</span> <span class="keyword">const</span> end = begin + <span class="keyword">sizeof</span>(uBig);</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8">strHex</a>(begin, end);</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#endif</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<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>
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<div class="ttc" id="anamespaceripple_html_ac6bd4d1a123ab730216bc521e094720f"><div class="ttname"><a href="namespaceripple.html#ac6bd4d1a123ab730216bc521e094720f">ripple::charUnHex</a></div><div class="ttdeci">int charUnHex(unsigned char c)</div><div class="ttdoc">Converts a hex digit to the corresponding integer.</div><div class="ttdef"><b>Definition:</b> <a href="strHex_8cpp_source.html#l00026">strHex.cpp:26</a></div></div>
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<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>
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<div class="ttc" id="aback_inserter_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a></div><div class="ttdeci">T back_inserter(T... args)</div></div>
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<div class="ttc" id="aiterator_tags_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/iterator_tags.html">std::forward_iterator_tag</a></div></div>
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<div class="ttc" id="adistance_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a></div><div class="ttdeci">T distance(T... args)</div></div>
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<div class="ttc" id="ais_convertible_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_convertible.html">std::is_convertible</a></div></div>
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<div class="ttc" id="aiterator_traits_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/iterator_traits.html">std::iterator_traits</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="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="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>
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<div class="ttc" id="acassert_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cassert.html">cassert</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a8f2e6be0441a70c9387e5b54cbf04e9b"><div class="ttname"><a href="namespaceripple.html#a8f2e6be0441a70c9387e5b54cbf04e9b">ripple::charHex</a></div><div class="ttdeci">char charHex(unsigned int digit)</div><div class="ttdoc">Converts an integer to the corresponding hex digit.</div><div class="ttdef"><b>Definition:</b> <a href="strHex_8h_source.html#l00042">strHex.h:42</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a86e358ce3f06ff049af13c2342791cf8"><div class="ttname"><a href="namespaceripple.html#a86e358ce3f06ff049af13c2342791cf8">ripple::strHex</a></div><div class="ttdeci">std::string strHex(FwdIt begin, FwdIt end)</div><div class="ttdef"><b>Definition:</b> <a href="strHex_8h_source.html#l00070">strHex.h:70</a></div></div>
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<div class="ttc" id="astring_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/string.html">string</a></div></div>
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