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<title>C++ API frePPLe: frepple::utils::Association< A, B, C > Class Template Reference</title>
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<div class="navpath"><a class="el" href="a00256.html">frepple</a>::<a class="el" href="a00257.html">utils</a>::<a class="el" href="a00001.html">Association</a>
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<h1>frepple::utils::Association< A, B, C > Class Template Reference</h1><!-- doxytag: class="frepple::utils::Association" -->
<p>This template class represents a data structure for a load or flow network.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="a00252_source.html">utils.h</a>></code></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Classes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><b>List</b></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A abstract base class for the internal representation of the association lists. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00101.html">ListA</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A list type of the "first" / "from" part of the association. <a href="a00101.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00102.html">ListB</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A list type of the "second" / "to" part of the association. <a href="a00102.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00118.html">Node</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A base class for the class representing the association itself. <a href="a00118.html#_details">More...</a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class A, class B, class C><br/>
class frepple::utils::Association< A, B, C ></h3>
<p>This template class represents a data structure for a load or flow network. </p>
<p>A node class has pointers to 2 root classes.<br/>
The 2 root classes each maintain a singly linked list of nodes.<br/>
An example to clarify the usage:</p>
<ul>
<li>class "node" = a newspaper subscription.</li>
<li>class "person" = maintains a list of all his subscriptions.</li>
<li>class "newspaper" = maintains a list of all subscriptions for it.</li>
</ul>
<p>This data structure could be replaced with 2 linked lists, but this specialized data type consumes considerably lower memory.</p>
<p>Reading from the structure is safe in multi-threading mode.<br/>
Updates to the data structure in a multi-threading mode require the user to properly lock and unlock the container. </p>
<p>Definition at line <a class="el" href="a00252_source.html#l04967">4967</a> of file <a class="el" href="a00252_source.html">utils.h</a>.</p>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="a00252_source.html">utils.h</a></li>
</ul>
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