93 lines
2.1 KiB
HTML
93 lines
2.1 KiB
HTML
<HTML>
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<!--
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Copyright (c) Jeremy Siek 2000
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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-->
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<Head>
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<Title>Read Write Property Map</Title>
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<BODY BGCOLOR="#ffffff" LINK="#0000ee" TEXT="#000000" VLINK="#551a8b"
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ALINK="#ff0000">
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<IMG SRC="../../../boost.png"
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ALT="C++ Boost" width="277" height="86">
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<BR Clear>
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<H2>
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<A NAME="concept:ReadWritePropertyMap"></A>
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<BR>
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Read/Write Property Map
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</H2>
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A Read/Write Property Map can be used to read property values via
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the <tt>get()</tt> function and can be used to write property values
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via the <tt>put()</tt> function.
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<H3>Refinement of</H3>
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<a href="./ReadablePropertyMap.html">Readable Property Map</a>
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and
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<a href="./WritablePropertyMap.html">Writable Property Map</a>
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<h3>Notation</h3>
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<Table>
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<TR>
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<TD><tt>PMap</tt></TD>
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<TD>A type that is a model of Read/Write Property Map.</TD>
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</TR>
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</table>
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<h2>Associated Types</h2>
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<table border>
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<tr>
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<td>Property Map Category
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<td><TT>boost::property_traits<PMap>::category</TT></td>
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<td>
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The category of the property map must be a type convertible to
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<TT>read_write_property_map_tag</TT>.
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</td>
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</tr>
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</table>
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<h3>Concept Checking Class</h3>
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<pre>
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template <class PMap, class Key>
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struct ReadWritePropertyMapConcept
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{
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typedef typename property_traits<PMap>::category Category;
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typedef boost::read_write_property_map_tag ReadWriteTag;
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void constraints() {
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function_requires< ReadablePropertyMapConcept<PMap, Key> >();
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function_requires< WritablePropertyMapConcept<PMap, Key> >();
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function_requires< ConvertibleConcept<Category, ReadWriteTag> >();
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}
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};
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</pre>
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<h3>See Also</h3>
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<a href="./property_map.html">Property map concepts</a>
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<br>
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<HR>
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<TABLE>
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<TR valign=top>
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<TD nowrap>Copyright © 2000</TD><TD>
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<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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</TD></TR></TABLE>
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</BODY>
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</HTML>
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