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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_0103a8ad82dcc2c51f5cde661b4b5cb7.html">xrpl</a></li><li class="navelem"><a class="el" href="dir_8d04e3c0b58cad28d7755ed462d1b6c0.html">protocol</a></li> </ul>
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<div class="headertitle"><div class="title">nft.h</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">/*</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> Copyright (c) 2023 Ripple Labs Inc.</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"></span> </div>
<div class="line"><a id="l00006" 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>
<div class="line"><a id="l00007" 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>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"></span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
<div class="line"><a id="l00012" 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>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a id="l00014" 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>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">*/</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment">//==============================================================================</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#ifndef RIPPLE_PROTOCOL_NFT_H_INCLUDED</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define RIPPLE_PROTOCOL_NFT_H_INCLUDED</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;xrpl/basics/base_uint.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;xrpl/basics/tagged_integer.h&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;xrpl/protocol/AccountID.h&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &lt;boost/endian/conversion.hpp&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstdint.html">cstdint</a>&gt;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a>&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="foldopen" id="foldopen00033" data-start="{" data-end="}">
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html"> 33</a></span><span class="keyword">namespace </span>nft {</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">// Separate taxons from regular integers.</span></div>
<div class="foldopen" id="foldopen00036" data-start="{" data-end="};">
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="structripple_1_1nft_1_1TaxonTag.html"> 36</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1nft_1_1TaxonTag.html">TaxonTag</a></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>{</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span>};</div>
</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a969cfd39753b9660728a29bd15b3df45"> 39</a></span><span class="keyword">using </span><a class="code hl_class" href="classripple_1_1tagged__integer.html">Taxon</a> = <a class="code hl_class" href="classripple_1_1tagged__integer.html">tagged_integer&lt;std::uint32_t, TaxonTag&gt;</a>;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="keyword">inline</span> <a class="code hl_class" href="classripple_1_1tagged__integer.html">Taxon</a></div>
<div class="foldopen" id="foldopen00042" data-start="{" data-end="}">
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a8878ae3c753ff4fe6bb04e5c516ccea5"> 42</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a8878ae3c753ff4fe6bb04e5c516ccea5">toTaxon</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> i)</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>{</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><a class="code hl_class" href="classripple_1_1tagged__integer.html">Taxon</a><span class="keyword">&gt;</span>(i);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>}</div>
</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="keyword">inline</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
<div class="foldopen" id="foldopen00048" data-start="{" data-end="}">
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a208916396e6cd7c0940640fabfa7e199"> 48</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a208916396e6cd7c0940640fabfa7e199">toUInt32</a>(<a class="code hl_class" href="classripple_1_1tagged__integer.html">Taxon</a> t)</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>{</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a><span class="keyword">&gt;</span>(t);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span>}</div>
</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a147e22883a25a336363e00ffc3a48469"> 53</a></span><span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="namespaceripple_1_1nft.html#a147e22883a25a336363e00ffc3a48469">flagBurnable</a> = 0x0001;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a5e5a21651e5185e7b375ed7ac5cea665"> 54</a></span><span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="namespaceripple_1_1nft.html#a5e5a21651e5185e7b375ed7ac5cea665">flagOnlyXRP</a> = 0x0002;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#aa185e09595bf533e445c46d28410a31d"> 55</a></span><span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="namespaceripple_1_1nft.html#aa185e09595bf533e445c46d28410a31d">flagCreateTrustLines</a> = 0x0004;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a978e07cfb22d656c64b30cd2f9dfbad7"> 56</a></span><span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="namespaceripple_1_1nft.html#a978e07cfb22d656c64b30cd2f9dfbad7">flagTransferable</a> = 0x0008;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a51bbd0838164f92b66d12558bf13e93c"> 57</a></span><span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> <a class="code hl_variable" href="namespaceripple_1_1nft.html#a51bbd0838164f92b66d12558bf13e93c">flagMutable</a> = 0x0010;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="keyword">inline</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a></div>
<div class="foldopen" id="foldopen00060" data-start="{" data-end="}">
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a1a5f9170a15fd6861ab81b1d021410cc"> 60</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a1a5f9170a15fd6861ab81b1d021410cc">getFlags</a>(<a class="code hl_class" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>{</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> flags;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> memcpy(&amp;flags, <span class="keywordtype">id</span>.begin(), 2);</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">return</span> boost::endian::big_to_native(flags);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span>}</div>
</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keyword">inline</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a></div>
<div class="foldopen" id="foldopen00068" data-start="{" data-end="}">
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a19ab99ac39a753e73810e317d9253f83"> 68</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a19ab99ac39a753e73810e317d9253f83">getTransferFee</a>(<a class="code hl_class" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>{</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> fee;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> memcpy(&amp;fee, <span class="keywordtype">id</span>.begin() + 2, 2);</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> boost::endian::big_to_native(fee);</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span>}</div>
</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="keyword">inline</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
<div class="foldopen" id="foldopen00076" data-start="{" data-end="}">
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#abcaadc221a478f164919335a9ebea93d"> 76</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#abcaadc221a478f164919335a9ebea93d">getSerial</a>(<a class="code hl_class" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>{</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> seq;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> memcpy(&amp;seq, <span class="keywordtype">id</span>.begin() + 28, 4);</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> boost::endian::big_to_native(seq);</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span>}</div>
</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="keyword">inline</span> <a class="code hl_typedef" href="namespaceripple_1_1nft.html#a969cfd39753b9660728a29bd15b3df45">Taxon</a></div>
<div class="foldopen" id="foldopen00084" data-start="{" data-end="}">
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a6ff9377be53296a54dd73bff1a4ae934"> 84</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a6ff9377be53296a54dd73bff1a4ae934">cipheredTaxon</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> tokenSeq, <a class="code hl_class" href="classripple_1_1tagged__integer.html">Taxon</a> taxon)</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>{</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// An issuer may issue several NFTs with the same taxon; to ensure that NFTs</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// are spread across multiple pages we lightly mix the taxon up by using the</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// sequence (which is not under the issuer&#39;s direct control) as the seed for</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// a simple linear congruential generator.</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">//</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// From the Hull-Dobell theorem we know that f(x)=(m*x+c) mod n will yield a</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// permutation of [0, n) when n is a power of 2 if m is congruent to 1 mod 4</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// and c is odd.</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">//</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// Here we use m = 384160001 and c = 2459. The modulo is implicit because we</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// use 2^32 for n and the arithmetic gives it to us for &quot;free&quot;.</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">//</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// Note that the scramble value we calculate is not cryptographically secure</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// but that&#39;s fine since all we&#39;re looking for is some dispersion.</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">//</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="comment">// **IMPORTANT** Changing these numbers would be a breaking change requiring</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// an amendment along with a way to distinguish token IDs that</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// were generated with the old code.</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">return</span> taxon ^ <a class="code hl_function" href="namespaceripple_1_1nft.html#a8878ae3c753ff4fe6bb04e5c516ccea5">toTaxon</a>(((384160001 * tokenSeq) + 2459));</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span>}</div>
</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span><span class="keyword">inline</span> <a class="code hl_typedef" href="namespaceripple_1_1nft.html#a969cfd39753b9660728a29bd15b3df45">Taxon</a></div>
<div class="foldopen" id="foldopen00108" data-start="{" data-end="}">
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a4a67928a93e3e71d20b3b47f1d1660d2"> 108</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a4a67928a93e3e71d20b3b47f1d1660d2">getTaxon</a>(<a class="code hl_class" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span>{</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> taxon;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> memcpy(&amp;taxon, <span class="keywordtype">id</span>.begin() + 24, 4);</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> taxon = boost::endian::big_to_native(taxon);</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// The taxon cipher is just an XOR, so it is reversible by applying the</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="comment">// XOR a second time.</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceripple_1_1nft.html#a6ff9377be53296a54dd73bff1a4ae934">cipheredTaxon</a>(<a class="code hl_function" href="namespaceripple_1_1nft.html#abcaadc221a478f164919335a9ebea93d">getSerial</a>(<span class="keywordtype">id</span>), <a class="code hl_function" href="namespaceripple_1_1nft.html#a8878ae3c753ff4fe6bb04e5c516ccea5">toTaxon</a>(taxon));</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span>}</div>
</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="keyword">inline</span> <a class="code hl_class" href="classripple_1_1base__uint.html">AccountID</a></div>
<div class="foldopen" id="foldopen00120" data-start="{" data-end="}">
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"><a class="line" href="namespaceripple_1_1nft.html#a5a717e41d61c4e7c1b2636ca6c8f7c6e"> 120</a></span><a class="code hl_function" href="namespaceripple_1_1nft.html#a5a717e41d61c4e7c1b2636ca6c8f7c6e">getIssuer</a>(<a class="code hl_class" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>&amp; <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span>{</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">return</span> <a class="code hl_function" href="classripple_1_1base__uint.html#a4e9de7a706374a3d016b89c9ecb4f80d">AccountID::fromVoid</a>(<span class="keywordtype">id</span>.data() + 4);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span>}</div>
</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span>} <span class="comment">// namespace nft</span></div>
</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span>} <span class="comment">// namespace ripple</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassripple_1_1base__uint_html"><div class="ttname"><a href="classripple_1_1base__uint.html">ripple::base_uint&lt; 256 &gt;</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html_a4e9de7a706374a3d016b89c9ecb4f80d"><div class="ttname"><a href="classripple_1_1base__uint.html#a4e9de7a706374a3d016b89c9ecb4f80d">ripple::base_uint&lt; 160, detail::AccountIDTag &gt;::fromVoid</a></div><div class="ttdeci">static base_uint fromVoid(void const *data)</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00319">base_uint.h:319</a></div></div>
<div class="ttc" id="aclassripple_1_1tagged__integer_html"><div class="ttname"><a href="classripple_1_1tagged__integer.html">ripple::tagged_integer</a></div><div class="ttdoc">A type-safe wrap around standard integral types.</div><div class="ttdef"><b>Definition</b> <a href="tagged__integer_8h_source.html#l00044">tagged_integer.h:54</a></div></div>
<div class="ttc" id="acstdint_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cstdint.html">cstdint</a></div></div>
<div class="ttc" id="acstring_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a></div></div>
<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a147e22883a25a336363e00ffc3a48469"><div class="ttname"><a href="namespaceripple_1_1nft.html#a147e22883a25a336363e00ffc3a48469">ripple::nft::flagBurnable</a></div><div class="ttdeci">constexpr std::uint16_t const flagBurnable</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00053">nft.h:53</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a19ab99ac39a753e73810e317d9253f83"><div class="ttname"><a href="namespaceripple_1_1nft.html#a19ab99ac39a753e73810e317d9253f83">ripple::nft::getTransferFee</a></div><div class="ttdeci">std::uint16_t getTransferFee(uint256 const &amp;id)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00068">nft.h:68</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a1a5f9170a15fd6861ab81b1d021410cc"><div class="ttname"><a href="namespaceripple_1_1nft.html#a1a5f9170a15fd6861ab81b1d021410cc">ripple::nft::getFlags</a></div><div class="ttdeci">std::uint16_t getFlags(uint256 const &amp;id)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00060">nft.h:60</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a208916396e6cd7c0940640fabfa7e199"><div class="ttname"><a href="namespaceripple_1_1nft.html#a208916396e6cd7c0940640fabfa7e199">ripple::nft::toUInt32</a></div><div class="ttdeci">std::uint32_t toUInt32(Taxon t)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00048">nft.h:48</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a4a67928a93e3e71d20b3b47f1d1660d2"><div class="ttname"><a href="namespaceripple_1_1nft.html#a4a67928a93e3e71d20b3b47f1d1660d2">ripple::nft::getTaxon</a></div><div class="ttdeci">Taxon getTaxon(uint256 const &amp;id)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00108">nft.h:108</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a51bbd0838164f92b66d12558bf13e93c"><div class="ttname"><a href="namespaceripple_1_1nft.html#a51bbd0838164f92b66d12558bf13e93c">ripple::nft::flagMutable</a></div><div class="ttdeci">constexpr std::uint16_t const flagMutable</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00057">nft.h:57</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a5a717e41d61c4e7c1b2636ca6c8f7c6e"><div class="ttname"><a href="namespaceripple_1_1nft.html#a5a717e41d61c4e7c1b2636ca6c8f7c6e">ripple::nft::getIssuer</a></div><div class="ttdeci">AccountID getIssuer(uint256 const &amp;id)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00120">nft.h:120</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a5e5a21651e5185e7b375ed7ac5cea665"><div class="ttname"><a href="namespaceripple_1_1nft.html#a5e5a21651e5185e7b375ed7ac5cea665">ripple::nft::flagOnlyXRP</a></div><div class="ttdeci">constexpr std::uint16_t const flagOnlyXRP</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00054">nft.h:54</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a6ff9377be53296a54dd73bff1a4ae934"><div class="ttname"><a href="namespaceripple_1_1nft.html#a6ff9377be53296a54dd73bff1a4ae934">ripple::nft::cipheredTaxon</a></div><div class="ttdeci">Taxon cipheredTaxon(std::uint32_t tokenSeq, Taxon taxon)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00084">nft.h:84</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a8878ae3c753ff4fe6bb04e5c516ccea5"><div class="ttname"><a href="namespaceripple_1_1nft.html#a8878ae3c753ff4fe6bb04e5c516ccea5">ripple::nft::toTaxon</a></div><div class="ttdeci">Taxon toTaxon(std::uint32_t i)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00042">nft.h:42</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a969cfd39753b9660728a29bd15b3df45"><div class="ttname"><a href="namespaceripple_1_1nft.html#a969cfd39753b9660728a29bd15b3df45">ripple::nft::Taxon</a></div><div class="ttdeci">tagged_integer&lt; std::uint32_t, TaxonTag &gt; Taxon</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00039">nft.h:39</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_a978e07cfb22d656c64b30cd2f9dfbad7"><div class="ttname"><a href="namespaceripple_1_1nft.html#a978e07cfb22d656c64b30cd2f9dfbad7">ripple::nft::flagTransferable</a></div><div class="ttdeci">constexpr std::uint16_t const flagTransferable</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00056">nft.h:56</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_aa185e09595bf533e445c46d28410a31d"><div class="ttname"><a href="namespaceripple_1_1nft.html#aa185e09595bf533e445c46d28410a31d">ripple::nft::flagCreateTrustLines</a></div><div class="ttdeci">constexpr std::uint16_t const flagCreateTrustLines</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00055">nft.h:55</a></div></div>
<div class="ttc" id="anamespaceripple_1_1nft_html_abcaadc221a478f164919335a9ebea93d"><div class="ttname"><a href="namespaceripple_1_1nft.html#abcaadc221a478f164919335a9ebea93d">ripple::nft::getSerial</a></div><div class="ttdeci">std::uint32_t getSerial(uint256 const &amp;id)</div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00076">nft.h:76</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="algorithm_8h_source.html#l00025">algorithm.h:25</a></div></div>
<div class="ttc" id="astructripple_1_1nft_1_1TaxonTag_html"><div class="ttname"><a href="structripple_1_1nft_1_1TaxonTag.html">ripple::nft::TaxonTag</a></div><div class="ttdef"><b>Definition</b> <a href="nft_8h_source.html#l00036">nft.h:37</a></div></div>
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