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added requirements for parameter T in property class

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[SVN r9700]
This commit is contained in:
Jeremy Siek 2001-04-03 17:06:11 +00:00
parent 64ef954373
commit 13fe19c49b
1 changed files with 30 additions and 20 deletions
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50
doc/using_adjacency_list.html
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@ -355,30 +355,40 @@ struct property;
</PRE> </PRE>
<P> <P>
The <TT>PropertyTag</TT> is a tag class (empty class) that simply The <b><TT>PropertyTag</TT></b> template parameter is a tag class that
identifies or gives a unique name to the property. There are several simply identifies or gives a unique name to the property. There are
predefined tags, and it is easy to add more. several predefined tags, and it is easy to add more.
<P> <P>
<PRE> <PRE>
struct vertex_index_t { } struct vertex_index_t { ... };
struct edge_index_t { } struct edge_index_t { ... };
struct graph_name_t { } struct graph_name_t { ... };
struct vertex_name_t { } struct vertex_name_t { ... };
struct edge_name_t { } struct edge_name_t { ... };
struct edge_weight_t { } struct edge_weight_t { ... };
struct vertex_distance_t { } struct vertex_distance_t { ... };
struct vertex_color_t { } struct vertex_color_t { ... };
struct vertex_degree_t { } struct vertex_degree_t { ... };
struct vertex_out_degree_t { } struct vertex_out_degree_t { ... };
struct vertex_in_degree_t { } struct vertex_in_degree_t { ... };
struct vertex_discover_time_t { } struct vertex_discover_time_t { ... };
struct vertex_finish_time_t { } struct vertex_finish_time_t { ... };
</PRE> </PRE>
<P> <P>
The <TT>T</TT> parameter of <TT>property</TT> specifies the type of the The <b><TT>T</TT></b> template parameter of <TT>property</TT>
property values. The <TT>NextProperty</TT> parameter allows <TT>property</TT> specifies the type of the property values. The type <tt>T</tt> must be
<a
href="http://www.sgi.com/tech/stl/DefaultConstructible.html">Default
Constructible</a>, <a
href="../../utility/Assignable.html">Assignable</a>, and <a
href="../../utility/CopyConstructible.html">Copy Constructible</a>.
Like the containers of the C++ Standard Library, the property objects
of type <tt>T</tt> are held by-value inside of the graph.
<p>
The <b><TT>NextProperty</TT></b> parameter allows <TT>property</TT>
types to be nested, so that an arbitrary number of properties can be types to be nested, so that an arbitrary number of properties can be
attached to the same graph. attached to the same graph.
@ -461,9 +471,9 @@ obtained from the graph via the
<P> <P>
<PRE> <PRE>
property_map&lt;Graph, capacity_tag&gt;::type capacity property_map&lt;Graph, capacity_t&gt;::type capacity
= get(capacity_t(), G); = get(capacity_t(), G);
property_map&lt;Graph, flow_tag&gt;::type flow property_map&lt;Graph, flow_t&gt;::type flow
= get(flow_t(), G); = get(flow_t(), G);
</PRE> </PRE>