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<Head>
<Title>Read Write Property Map</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>
<H2>
<A NAME="concept:ReadWritePropertyMap"></A>
<BR>
Read/Write Property Map
</H2>
A Read/Write Property Map can be used to read property values via
the <tt>get()</tt> function and can be used to write property values
via the <tt>put()</tt> function.
<H3>Refinement of</H3>
<a href="./ReadablePropertyMap.html">Readable Property Map</a>
and
<a href="./WritablePropertyMap.html">Writable Property Map</a>
<h3>Notation</h3>
<Table>
<TR>
<TD><tt>PMap</tt></TD>
<TD>A type that is a model of Read/Write Property Map.</TD>
</TR>
</table>
<h2>Associated Types</h2>
<table border>
<tr>
<td>Property Map Category
<td><TT>boost::property_traits<PMap>::category</TT></td>
<td>
The category of the property map must be a type convertible to
<TT>read_write_property_map_tag</TT>.
</td>
</tr>
</table>
<h3>Concept Checking Class</h3>
<pre>
template <class PMap, class Key>
struct ReadWritePropertyMapConcept
{
typedef typename property_traits<PMap>::category Category;
typedef boost::read_write_property_map_tag ReadWriteTag;
void constraints() {
function_requires< ReadablePropertyMapConcept<PMap, Key> >();
function_requires< WritablePropertyMapConcept<PMap, Key> >();
function_requires< ConvertibleConcept<Category, ReadWriteTag> >();
}
};
</pre>
<h3>See Also</h3>
<a href="./property_map.html">Property map concepts</a>
<br>
<HR>
<TABLE>
<TR valign=top>
<TD nowrap>Copyright © 2000</TD><TD>
<a HREF="http://www.boost.org/people/jeremy_siek.htm">Jeremy Siek</a>, Univ.of Notre Dame (<A HREF="mailto:jsiek@lsc.nd.edu">jsiek@lsc.nd.edu</A>)
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