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- Copyright (c) Jeremy Siek, Lie-Quan Lee, and Andrew Lumsdaine 2000
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- Distributed under the Boost Software License, Version 1.0.
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- <Head>
- <Title>Boost Graph Library: Graph Traits</Title>
- <BODY BGCOLOR="#ffffff" LINK="#0000ee" TEXT="#000000" VLINK="#551a8b"
- ALINK="#ff0000">
- <IMG SRC="../../../boost.png"
- ALT="C++ Boost" width="277" height="86">
- <BR Clear>
- <H1><A NAME=""></A>
- <pre>
- adjacency_list_traits<EdgeList, VertexList, Directed>
- </pre>
- </H1>
- This class provides an alternate method for accessing some of the
- associated types of the <tt>adjacency_list</tt> class. The main reason
- for this class is that sometimes one would like to create graph
- properties whose values are vertex or edge descriptors. If you try to
- use <tt>graph_traits</tt> for this you will run into a problem with
- mutually recursive types. To get around this problem, the
- <tt>adjacency_list_traits</tt> class is provided, which gives the user
- access to the vertex and edge descriptor types without requiring the
- user to provide the property types for the graph.
- <pre>
- template <class EdgeList, class VertexList, class Directed>
- struct adjacency_list_traits {
- typedef ... vertex_descriptor;
- typedef ... edge_descriptor;
- typedef ... directed_category;
- typedef ... edge_parallel_category;
- };
- </pre>
- <h3>Where Defined</h3>
- <a href="../../../boost/graph/adjacency_list.hpp"><tt>boost/graph/adjacency_list.hpp</tt></a>
- <H3>Template Parameters</H3>
- <P>
- <TABLE border>
- <TR>
- <th>Parameter</th><th>Description</th><th>Default</th>
- </tr>
- <TR><TD><TT>EdgeList</TT></TD>
- <TD>
- The selector type for the edge container implementation.
- </TD>
- <td><tt>vecS</tt></td>
- </TR>
- <TR><TD><TT>VertexList</TT></TD>
- <TD>
- The selector type for the vertex container implementation.
- </TD>
- <td><tt>vecS</tt></td>
- </TR>
- <TR><TD><TT>Directed</TT></TD>
- <TD>
- The selector type whether the graph is directed or undirected.
- </TD>
- <td><tt>directedS</tt></td>
- </TR>
- </table>
- <h3>Model of</h3>
- <a
- href="http://www.boost.org/sgi/stl/DefaultConstructible.html">DefaultConstructible</a> and
- <a href="http://www.boost.org/sgi/stl/Assignable.html">Assignable</a>
- <h3>Type Requirements</h3>
- Under construction.
- <H2>Members</H2>
- <p>
- <table border>
- <tr>
- <th>Member</th><th>Description</th>
- </tr>
- <tr>
- <td><tt>
- vertex_descriptor
- </tt></td>
- <td>
- The type for the objects used to identify vertices in the graph.
- </td>
- </tr>
- <tr>
- <td><tt>
- edge_descriptor
- </tt></td>
- <td>
- The type for the objects used to identify edges in the graph.
- </td>
- </tr>
- <tr>
- <td><tt>
- directed_category
- </tt></td>
- <td>
- This says whether the graph is undirected (<tt>undirected_tag</tt>)
- or directed (<tt>directed_tag</tt>).
- </td>
- </tr>
- <tr>
- <td><tt>
- edge_parallel_category
- </tt></td>
- <td>
- This says whether the graph allows parallel edges to be inserted
- (<tt>allow_parallel_edge_tag</tt>) or if it automatically removes
- parallel edges (<tt>disallow_parallel_edge_tag</tt>).
- </td>
- </tr>
- </table>
- <h3>See Also</h3>
- <a href="./adjacency_list.html"><tt>adjacency_list</tt></a>
- <br>
- <HR>
- <TABLE>
- <TR valign=top>
- <TD nowrap>Copyright © 2000-2001</TD><TD>
- <A HREF="http://www.boost.org/people/jeremy_siek.htm">Jeremy Siek</A>,
- Indiana University (<A
- HREF="mailto:jsiek@osl.iu.edu">jsiek@osl.iu.edu</A>)<br>
- <A HREF="http://www.boost.org/people/liequan_lee.htm">Lie-Quan Lee</A>, Indiana University (<A HREF="mailto:llee@cs.indiana.edu">llee@cs.indiana.edu</A>)<br>
- <A HREF="https://homes.cs.washington.edu/~al75">Andrew Lumsdaine</A>,
- Indiana University (<A
- HREF="mailto:lums@osl.iu.edu">lums@osl.iu.edu</A>)
- </TD></TR></TABLE>
- </BODY>
- </HTML>
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