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| <Head> |
| <Title>Boost Graph Library: Graph Traits</Title> |
| <BODY BGCOLOR="#ffffff" LINK="#0000ee" TEXT="#000000" VLINK="#551a8b" |
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| <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.sgi.com/tech/stl/DefaultConstructible.html">DefaultConstructible</a> and |
| <a href="http://www.sgi.com/tech/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="http://www.osl.iu.edu/~lums">Andrew Lumsdaine</A>, |
| Indiana University (<A |
| HREF="mailto:lums@osl.iu.edu">lums@osl.iu.edu</A>) |
| </TD></TR></TABLE> |
| |
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