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| <h2><span class="refentrytitle">Struct template as_expr</span></h2> |
| <p>boost::proto::result_of::as_expr — A metafunction that computes the return type of the |
| <code class="computeroutput"><a class="link" href="../as_expr_id1288965.html" title="Function as_expr">proto::as_expr</a>()</code> function.</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="../../../proto/reference.html#header.boost.proto.traits_hpp" title="Header <boost/proto/traits.hpp>">boost/proto/traits.hpp</a>> |
| |
| </span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="../../../Domain.html" title="Concept Domain">Domain</a> <span class="special">=</span> <a class="link" href="../default_domain.html" title="Struct default_domain">proto::default_domain</a><span class="special">></span> |
| <span class="keyword">struct</span> <a class="link" href="as_expr.html" title="Struct template as_expr">as_expr</a> <span class="special">{</span> |
| <span class="comment">// types</span> |
| <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Domain</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">as_expr</span><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span><span class="special">::</span><span class="identifier">result_type</span> <a name="boost.proto.result_of.as_expr.type"></a><span class="identifier">type</span><span class="special">;</span> |
| <span class="special">}</span><span class="special">;</span></pre></div> |
| <div class="refsect1"> |
| <a name="id2377217"></a><h2>Description</h2> |
| <p> |
| The <code class="computeroutput">proto::result_of::as_expr<></code> metafunction turns types |
| into Proto expression types, if they are not already, in a domain-specific way. It is intended |
| for use to compute the type of a local variable that can hold the result of the |
| <code class="computeroutput"><a class="link" href="../as_expr_id1288965.html" title="Function as_expr">proto::as_expr</a>()</code> function. |
| </p> |
| <p> |
| See <code class="computeroutput"><a class="link" href="../domain/as_expr.html" title="Struct template as_expr">proto::domain::as_expr</a><></code> |
| for a complete description of the default behavior. |
| </p> |
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| <td align="right"><div class="copyright-footer">Copyright © 2008 Eric Niebler<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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