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| <h2><span class="refentrytitle">Struct template valid_member_type</span></h2> |
| <p>boost::tti::valid_member_type — A metafunction which checks whether the member 'type' returned from invoking the macro metafunction generated by BOOST_TTI_MEMBER_TYPE ( BOOST_TTI_TRAIT_MEMBER_TYPE ) is a valid type. </p> |
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| <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> |
| <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../header/boost/tti/member_type_hpp.html" title="Header <boost/tti/member_type.hpp>">boost/tti/member_type.hpp</a>> |
| |
| </span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BOOST_TTI_TP_T<span class="special">,</span> |
| <span class="keyword">typename</span> BOOST_TTI_TP_MARKER_TYPE <span class="special">=</span> <span class="identifier">BOOST_TTI_NAMESPACE</span><span class="special">::</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">notype</span><span class="special">></span> |
| <span class="keyword">struct</span> <a class="link" href="valid_member_type.html" title="Struct template valid_member_type">valid_member_type</a> <span class="special">:</span> <span class="keyword">public</span> boost::mpl::not_< boost::is_same< BOOST_TTI_TP_T, BOOST_TTI_TP_MARKER_TYPE > > |
| <span class="special">{</span> |
| <span class="special">}</span><span class="special">;</span></pre></div> |
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| <a name="idp103173280"></a><h2>Description</h2> |
| <p>template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_MARKER_TYPE = boost::tti::detail::notype> struct <a class="link" href="valid_member_type.html" title="Struct template valid_member_type">valid_member_type</a> { static const value = unspecified; typedef mpl::bool_<true-or-false> type; };</p> |
| <p>The metafunction types and return:</p> |
| <p>BOOST_TTI_TP_T = returned inner 'type' from invoking the macro metafunction generated by BOOST_TTI_MEMBER_TYPE ( BOOST_TTI_TRAIT_MEMBER_TYPE ). BOOST_TTI_TP_MARKER_TYPE = (optional) a type to use as the marker type. defaults to the internal boost::tti::detail::notype.</p> |
| <p>returns = 'value' is true if the type is valid, otherwise 'value' is false. A valid type means that the returned inner 'type' is not the marker type. </p> |
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| <td align="right"><div class="copyright-footer">Copyright © 2011-2013 Tropic Software |
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| Distributed under the Boost Software License, Version 1.0. (See accompanying |
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