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<li class="navelem"><a class="el" href="namespaceripple.html">ripple</a></li><li class="navelem"><a class="el" href="structripple_1_1StrandContext.html">StrandContext</a></li> </ul>
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<div class="headertitle"><div class="title">ripple::StrandContext Struct Reference</div></div>
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<p>Context needed to build Strand Steps and for error checking.
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<p><code>#include <<a class="el" href="Steps_8h_source.html">Steps.h</a>></code></p>
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Collaboration diagram for ripple::StrandContext:</div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a0be060a46bfa148f6d8e0ae61ac60c93"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a0be060a46bfa148f6d8e0ae61ac60c93">StrandContext</a> (<a class="el" href="classripple_1_1ReadView.html">ReadView</a> const &view_, <a class="elRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>< <a class="elRef" href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr</a>< <a class="el" href="classripple_1_1Step.html">Step</a> > > const &strand_, <a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const &strandSrc_, <a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const &strandDst_, <a class="el" href="classripple_1_1Issue.html">Issue</a> const &strandDeliver_, <a class="elRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a>< Quality > const &limitQuality_, bool isLast_, bool ownerPaysTransferFee_, <a class="el" href="namespaceripple.html#a786c40cb27211e1704047accb2ca26bd">OfferCrossing</a> offerCrossing_, bool isDefaultPath_, <a class="elRef" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>< boost::container::flat_set< <a class="el" href="classripple_1_1Issue.html">Issue</a> >, 2 > &seenDirectIssues_, boost::container::flat_set< <a class="el" href="classripple_1_1Issue.html">Issue</a> > &seenBookOuts_, <a class="el" href="classripple_1_1AMMContext.html">AMMContext</a> &ammContext_, <a class="el" href="classbeast_1_1Journal.html">beast::Journal</a> j_)</td></tr>
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<tr class="memdesc:a0be060a46bfa148f6d8e0ae61ac60c93"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="structripple_1_1StrandContext.html" title="Context needed to build Strand Steps and for error checking.">StrandContext</a> constructor. <a href="structripple_1_1StrandContext.html#a0be060a46bfa148f6d8e0ae61ac60c93">More...</a><br /></td></tr>
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<tr class="separator:a0be060a46bfa148f6d8e0ae61ac60c93"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
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Public Attributes</h2></td></tr>
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<tr class="memitem:a0e059ee50baf7c62cfa1748b40f1092d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classripple_1_1ReadView.html">ReadView</a> const & </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a0e059ee50baf7c62cfa1748b40f1092d">view</a></td></tr>
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<tr class="memdesc:a0e059ee50baf7c62cfa1748b40f1092d"><td class="mdescLeft"> </td><td class="mdescRight">Current <a class="el" href="classripple_1_1ReadView.html" title="A view into a ledger.">ReadView</a>. <a href="structripple_1_1StrandContext.html#a0e059ee50baf7c62cfa1748b40f1092d">More...</a><br /></td></tr>
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<tr class="separator:a0e059ee50baf7c62cfa1748b40f1092d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0d70df9585bd114fef1d5dcda3ee7280"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a0d70df9585bd114fef1d5dcda3ee7280">strandSrc</a></td></tr>
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<tr class="memdesc:a0d70df9585bd114fef1d5dcda3ee7280"><td class="mdescLeft"> </td><td class="mdescRight">Strand source account. <a href="structripple_1_1StrandContext.html#a0d70df9585bd114fef1d5dcda3ee7280">More...</a><br /></td></tr>
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<tr class="separator:a0d70df9585bd114fef1d5dcda3ee7280"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5d1a40124f3369767530ba3557d5994d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a5d1a40124f3369767530ba3557d5994d">strandDst</a></td></tr>
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<tr class="memdesc:a5d1a40124f3369767530ba3557d5994d"><td class="mdescLeft"> </td><td class="mdescRight">Strand destination account. <a href="structripple_1_1StrandContext.html#a5d1a40124f3369767530ba3557d5994d">More...</a><br /></td></tr>
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<tr class="separator:a5d1a40124f3369767530ba3557d5994d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aad73e9640d10c5af89e57dc6f65fc890"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classripple_1_1Issue.html">Issue</a> const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#aad73e9640d10c5af89e57dc6f65fc890">strandDeliver</a></td></tr>
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<tr class="memdesc:aad73e9640d10c5af89e57dc6f65fc890"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classripple_1_1Issue.html" title="A currency issued by an account.">Issue</a> strand delivers. <a href="structripple_1_1StrandContext.html#aad73e9640d10c5af89e57dc6f65fc890">More...</a><br /></td></tr>
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<tr class="separator:aad73e9640d10c5af89e57dc6f65fc890"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa5346c7dcbf9963a46c30ceedb7e5b86"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a>< Quality > const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#aa5346c7dcbf9963a46c30ceedb7e5b86">limitQuality</a></td></tr>
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<tr class="memdesc:aa5346c7dcbf9963a46c30ceedb7e5b86"><td class="mdescLeft"> </td><td class="mdescRight">Worst accepted quality. <a href="structripple_1_1StrandContext.html#aa5346c7dcbf9963a46c30ceedb7e5b86">More...</a><br /></td></tr>
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<tr class="separator:aa5346c7dcbf9963a46c30ceedb7e5b86"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8348b69ccb12d4f42adcff1c747671c2"><td class="memItemLeft" align="right" valign="top">bool const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a8348b69ccb12d4f42adcff1c747671c2">isFirst</a></td></tr>
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<tr class="memdesc:a8348b69ccb12d4f42adcff1c747671c2"><td class="mdescLeft"> </td><td class="mdescRight">true if <a class="el" href="classripple_1_1Step.html" title="A step in a payment path.">Step</a> is first in Strand <a href="structripple_1_1StrandContext.html#a8348b69ccb12d4f42adcff1c747671c2">More...</a><br /></td></tr>
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<tr class="separator:a8348b69ccb12d4f42adcff1c747671c2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a92f0bbf8a41c47dc2adaf095ee3d38c0"><td class="memItemLeft" align="right" valign="top">bool const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a92f0bbf8a41c47dc2adaf095ee3d38c0">isLast</a> = false</td></tr>
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<tr class="memdesc:a92f0bbf8a41c47dc2adaf095ee3d38c0"><td class="mdescLeft"> </td><td class="mdescRight">true if <a class="el" href="classripple_1_1Step.html" title="A step in a payment path.">Step</a> is last in Strand <a href="structripple_1_1StrandContext.html#a92f0bbf8a41c47dc2adaf095ee3d38c0">More...</a><br /></td></tr>
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<tr class="separator:a92f0bbf8a41c47dc2adaf095ee3d38c0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3c162fa9856ab3be1951abb22ac2d57f"><td class="memItemLeft" align="right" valign="top">bool const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a3c162fa9856ab3be1951abb22ac2d57f">ownerPaysTransferFee</a></td></tr>
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<tr class="memdesc:a3c162fa9856ab3be1951abb22ac2d57f"><td class="mdescLeft"> </td><td class="mdescRight">true if owner, not sender, pays fee <a href="structripple_1_1StrandContext.html#a3c162fa9856ab3be1951abb22ac2d57f">More...</a><br /></td></tr>
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<tr class="memitem:a823714e1b46346bde9898caac9c824d2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceripple.html#a786c40cb27211e1704047accb2ca26bd">OfferCrossing</a> const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a823714e1b46346bde9898caac9c824d2">offerCrossing</a></td></tr>
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<tr class="memdesc:a823714e1b46346bde9898caac9c824d2"><td class="mdescLeft"> </td><td class="mdescRight">Yes/Sell if offer crossing, not payment. <a href="structripple_1_1StrandContext.html#a823714e1b46346bde9898caac9c824d2">More...</a><br /></td></tr>
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<tr class="memitem:a012ba7095985d961b9dcc6d7a1016732"><td class="memItemLeft" align="right" valign="top">bool const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a012ba7095985d961b9dcc6d7a1016732">isDefaultPath</a></td></tr>
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<tr class="memdesc:a012ba7095985d961b9dcc6d7a1016732"><td class="mdescLeft"> </td><td class="mdescRight">true if Strand is default path <a href="structripple_1_1StrandContext.html#a012ba7095985d961b9dcc6d7a1016732">More...</a><br /></td></tr>
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<tr class="memitem:a09258816e4b43be8130db55952317cf0"><td class="memItemLeft" align="right" valign="top">size_t const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a09258816e4b43be8130db55952317cf0">strandSize</a></td></tr>
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<tr class="memdesc:a09258816e4b43be8130db55952317cf0"><td class="mdescLeft"> </td><td class="mdescRight">Length of Strand. <a href="structripple_1_1StrandContext.html#a09258816e4b43be8130db55952317cf0">More...</a><br /></td></tr>
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<tr class="memitem:a20f852451e14c6cc04c3fbb5a49c41f6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classripple_1_1Step.html">Step</a> const *const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a20f852451e14c6cc04c3fbb5a49c41f6">prevStep</a> = nullptr</td></tr>
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<tr class="memdesc:a20f852451e14c6cc04c3fbb5a49c41f6"><td class="mdescLeft"> </td><td class="mdescRight">The previous step in the strand. <a href="structripple_1_1StrandContext.html#a20f852451e14c6cc04c3fbb5a49c41f6">More...</a><br /></td></tr>
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<tr class="memitem:a1f64547d1189ede6fef202ada9dc0f2b"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>< boost::container::flat_set< <a class="el" href="classripple_1_1Issue.html">Issue</a> >, 2 > & </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a1f64547d1189ede6fef202ada9dc0f2b">seenDirectIssues</a></td></tr>
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<tr class="memdesc:a1f64547d1189ede6fef202ada9dc0f2b"><td class="mdescLeft"> </td><td class="mdescRight">A strand may not include the same account node more than once in the same currency. <a href="structripple_1_1StrandContext.html#a1f64547d1189ede6fef202ada9dc0f2b">More...</a><br /></td></tr>
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<tr class="memitem:a0bef921eb9b057dff6fa57d4bef62025"><td class="memItemLeft" align="right" valign="top">boost::container::flat_set< <a class="el" href="classripple_1_1Issue.html">Issue</a> > & </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a0bef921eb9b057dff6fa57d4bef62025">seenBookOuts</a></td></tr>
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<tr class="memdesc:a0bef921eb9b057dff6fa57d4bef62025"><td class="mdescLeft"> </td><td class="mdescRight">A strand may not include an offer that output the same issue more than once. <a href="structripple_1_1StrandContext.html#a0bef921eb9b057dff6fa57d4bef62025">More...</a><br /></td></tr>
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<tr class="memitem:ad518e54e6f8dd8bc666dd4066e4da31c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classripple_1_1AMMContext.html">AMMContext</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#ad518e54e6f8dd8bc666dd4066e4da31c">ammContext</a></td></tr>
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<tr class="memitem:a09a7d44d440f4d4b4f89fd71aff64368"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classbeast_1_1Journal.html">beast::Journal</a> const </td><td class="memItemRight" valign="bottom"><a class="el" href="structripple_1_1StrandContext.html#a09a7d44d440f4d4b4f89fd71aff64368">j</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p >Context needed to build Strand Steps and for error checking. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00525">525</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a0be060a46bfa148f6d8e0ae61ac60c93">◆ </a></span>StrandContext()</h2>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classripple_1_1ReadView.html">ReadView</a> const & </td>
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<td class="paramtype"><a class="elRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>< <a class="elRef" href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr</a>< <a class="el" href="classripple_1_1Step.html">Step</a> > > const & </td>
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<td class="paramtype"><a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const & </td>
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<td class="paramtype"><a class="elRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a>< Quality > const & </td>
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<td>)</td>
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<p><a class="el" href="structripple_1_1StrandContext.html" title="Context needed to build Strand Steps and for error checking.">StrandContext</a> constructor. </p>
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<p >Journal for logging </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<p class="definition">Definition at line <a class="el" href="PaySteps_8cpp_source.html#l00582">582</a> of file <a class="el" href="PaySteps_8cpp_source.html">PaySteps.cpp</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a0e059ee50baf7c62cfa1748b40f1092d">◆ </a></span>view</h2>
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<td class="memname"><a class="el" href="classripple_1_1ReadView.html">ReadView</a> const& ripple::StrandContext::view</td>
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<p>Current <a class="el" href="classripple_1_1ReadView.html" title="A view into a ledger.">ReadView</a>. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00527">527</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<td class="memname"><a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const ripple::StrandContext::strandSrc</td>
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<p>Strand source account. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00528">528</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<td class="memname"><a class="el" href="namespaceripple.html#a00ae0d729cb3e35b6bcac9a27ebb5284">AccountID</a> const ripple::StrandContext::strandDst</td>
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<p>Strand destination account. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00529">529</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<p><a class="el" href="classripple_1_1Issue.html" title="A currency issued by an account.">Issue</a> strand delivers. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00530">530</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a><Quality> const ripple::StrandContext::limitQuality</td>
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<p>Worst accepted quality. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00531">531</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<p>true if <a class="el" href="classripple_1_1Step.html" title="A step in a payment path.">Step</a> is first in Strand </p>
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<p>true if <a class="el" href="classripple_1_1Step.html" title="A step in a payment path.">Step</a> is last in Strand </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00533">533</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<p>true if owner, not sender, pays fee </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00534">534</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<p>Yes/Sell if offer crossing, not payment. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00537">537</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<p>Length of Strand. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00538">538</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a20f852451e14c6cc04c3fbb5a49c41f6">◆ </a></span>prevStep</h2>
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<td class="memname"><a class="el" href="classripple_1_1Step.html">Step</a> const* const ripple::StrandContext::prevStep = nullptr</td>
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<p>The previous step in the strand. </p>
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<p >Needed to check the no ripple constraint </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00542">542</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1f64547d1189ede6fef202ada9dc0f2b">◆ </a></span>seenDirectIssues</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a><boost::container::flat_set<<a class="el" href="classripple_1_1Issue.html">Issue</a>>, 2>& ripple::StrandContext::seenDirectIssues</td>
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<p>A strand may not include the same account node more than once in the same currency. </p>
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<p >In a direct step, an account will show up at most twice: once as a src and once as a dst (hence the two element array). The strandSrc and strandDst will only show up once each. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00548">548</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0bef921eb9b057dff6fa57d4bef62025">◆ </a></span>seenBookOuts</h2>
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<td class="memname">boost::container::flat_set<<a class="el" href="classripple_1_1Issue.html">Issue</a>>& ripple::StrandContext::seenBookOuts</td>
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<p>A strand may not include an offer that output the same issue more than once. </p>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00552">552</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad518e54e6f8dd8bc666dd4066e4da31c">◆ </a></span>ammContext</h2>
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<td class="memname"><a class="el" href="classripple_1_1AMMContext.html">AMMContext</a>& ripple::StrandContext::ammContext</td>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00553">553</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a09a7d44d440f4d4b4f89fd71aff64368">◆ </a></span>j</h2>
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<td class="memname"><a class="el" href="classbeast_1_1Journal.html">beast::Journal</a> const ripple::StrandContext::j</td>
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<p class="definition">Definition at line <a class="el" href="Steps_8h_source.html#l00554">554</a> of file <a class="el" href="Steps_8h_source.html">Steps.h</a>.</p>
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