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<h2><span class="refentrytitle">Macro BOOST_TTI_HAS_DATA</span></h2>
<p>BOOST_TTI_HAS_DATA — Expands to a metafunction which tests whether member data or static member data with a particular name and type exists. </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/has_data_hpp.html" title="Header <boost/tti/has_data.hpp>">boost/tti/has_data.hpp</a>>
</span>BOOST_TTI_HAS_DATA(name)</pre></div>
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<a name="idp91422784"></a><h2>Description</h2>
<p>name = the name of the inner member.</p>
<p>generates a metafunction called "has_data_name" where 'name' is the macro parameter. template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_TYPE>
struct has_data_name
{
static const value = unspecified;
typedef mpl::bool_<true-or-false> type;
};
The metafunction types and return:
BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'
BOOST_TTI_TP_TYPE = The type of the member data or static member.
returns = 'value' is true if the 'name' exists, with the correct data type,
otherwise 'value' is false. </p>
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<td align="right"><div class="copyright-footer">Copyright © 2011-2013 Tropic Software
East Inc<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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