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<Head>
<Title>MutablePropertyGraph</Title>
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<H2>
<A NAME="sec:MutablePropertyGraph"></A>
MutablePropertyGraph
</H2>

A MutablePropertyGraph is a <a
href="./MutableGraph.html">MutableGraph</a> with properties attached
internally to the vertices and edges. When adding vertices and edges
the value of the properties can be given.


<H3>Refinement of</H3>

<a href="./MutableGraph.html">MutableGraph</a> and
<a href="./PropertyGraph.html">PropertyGraph</a>

<H3>Notation</H3>


<TABLE>

<TR>
<TD><tt>G</tt></TD>
<TD>A type that is a model of Graph.</TD>
</TR>

<TR>
<TD><tt>g</tt></TD>
<TD>An object of type <tt>G</tt>.</TD>
</TR>

<TR>
<TD><tt>e</tt></TD>
<TD>An object of type <tt>boost::graph_traits&lt;G&gt;::edge_descriptor</tt>.</TD>
</TR>

<TR>
<TD><tt>u,v</tt></TD>
<TD>are objects of type <tt>boost::graph_traits&lt;G&gt;::vertex_descriptor</tt>.</TD>
</TR>

<TR>
<TD><TT>ep</TT></TD><TD>is an object of type <TT>G::edge_property_type</TT></TD>
</TR>

<TR>
<TD><TT>vp</TT></TD><TD>is an object of type <TT>G::vertex_property_type</TT></TD>
</TR>

</TABLE>

<P>

<H3>Associated Types</H3>

<table border>

<tr>
<td>Edge Property Type </td>
<td><TT>graph_traits&lt;G&gt;::edge_property_type</TT></td>
</tr>

<tr>
<td>Vertex Property Type </td>
<td><TT>graph_traits&lt;G&gt;::vertex_property_type</TT> </td>
</tr>

</table>

<H3>Valid Expressions</h3>

<table border>

<tr>
<TD><TT>add_edge(u,&nbsp;v,&nbsp;ep,&nbsp;g)</TT></TD>
<TD>Inserts the edge <i>(u,v)</i> into the graph, and
copies object <TT>ep</TT> into the property for that edge.<br>
Return type: <TT>std::pair&lt;edge_descriptor, bool&gt;</TT></TD>
</TR>

<tr>
<TD><TT>add_vertex(vp,&nbsp;g)</TT></TD>
<TD>
Add a new vertex to the graph and copy <TT>vp</TT> into the
property for the new vertex. The <TT>vertex_descriptor</TT> for the new
vertex is returned.<br>
Return type: <TT>vertex_descriptor</TT>
</TD>
</TR>

</TABLE>


<H3>Models</H3>

<UL>
<LI><TT>adjacency_list</TT></LI>
</UL>

<H3>Concept Checking Class</H3>

<P>
<PRE>
  template &lt;class G&gt;
  struct MutablePropertyGraphConcept
  {
    typedef typename boost::graph_traits&lt;G&gt;::edge_descriptor edge_descriptor;
    void constraints() {
      function_requires&lt; MutableGraphConcept&lt;G&gt; &gt;();
      v = add_vertex(vp, g);
      p = add_edge(u, v, ep, g);
    }
    G g;
    std::pair&lt;edge_descriptor, bool&gt; p;
    typename boost::graph_traits&lt;G&gt;::vertex_descriptor u, v;
    typename boost::graph_traits&lt;G&gt;::vertex_property_type vp;
    typename boost::graph_traits&lt;G&gt;::edge_property_type ep;
  };
</PRE>


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<HR>
<TABLE>
<TR valign=top>
<TD nowrap>Copyright &copy; 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>)
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