<link rel="home" href="../../index.html" title="Chapter 1. Boost.Contract 1.0.0">
<link rel="up" href="../../reference.html#header.boost.contract.call_if_hpp" title="Header <boost/contract/call_if.hpp>">
<link rel="prev" href="../../BOOST_CONTRACT_BASE_TYPES.html" title="Macro BOOST_CONTRACT_BASE_TYPES">
-<link rel="next" href="call_if__idm45123870948032.html" title="Struct template call_if_statement<false, Then, internal_type>">
+<link rel="next" href="call_if__idm45395000098448.html" title="Struct template call_if_statement<false, Then, internal_type>">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
</tr></table>
<hr>
<div class="spirit-nav">
-<a accesskey="p" href="../../BOOST_CONTRACT_BASE_TYPES.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.call_if_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="call_if__idm45
123870948032.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+<a accesskey="p" href="../../BOOST_CONTRACT_BASE_TYPES.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.call_if_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="call_if__idm45
395000098448.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="refentry">
<a name="boost.contract.call_if_statement"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Struct template call_if_statement</span></h2>
-<p>boost::contract::call_if_statement — Select compilation and execution of functor template calls using a static boolean predicate. </p>
+<p>boost::contract::call_if_statement — Select compilation and execution of functor template calls using a static boolean predicate (not needed on C++17 compilers, use <code class="computeroutput">if constexpr</code> instead). </p>
</div>
<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="../../reference.html#header.boost.contract.call_if_hpp" title="Header <boost/contract/call_if.hpp>">boost/contract/call_if.hpp</a>>
<span class="keyword">struct</span> <a class="link" href="call_if_statement.html" title="Struct template call_if_statement">call_if_statement</a> <span class="special">{</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
-<a name="idm45751731698400"></a><h2>Description</h2>
+<a name="idm45707998256576"></a><h2>Description</h2>
<p>This class template has no members because it is never used directly, it is only used via its specializations. Usually this class template is instantiated only via the return value of <code class="computeroutput"><a class="link" href="call_if.html" title="Function template call_if">boost::contract::call_if</a></code> and <code class="computeroutput"><a class="link" href="call_if_c.html" title="Function template call_if_c">boost::contract::call_if_c</a></code>.</p>
<p><span class="bold"><strong>See Also:</strong></span></p>
<p> <a class="link" href="../../boost_contract/extras.html#boost_contract.extras.assertion_requirements__templates_" title="Assertion Requirements (Templates)">
</p>
<div class="refsect2">
-<a name="idm45751731692880"></a><h3>Template Parameters</h3>
+<a name="idm45707998251056"></a><h3>Template Parameters</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> Pred</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
-<td align="right"><div class="copyright-footer">Copyright © 2008-201
8 Lorenzo Caminiti<p>
+<td align="right"><div class="copyright-footer">Copyright © 2008-201
9 Lorenzo Caminiti<p>
Distributed under the Boost Software License, Version 1.0 (see accompanying
file LICENSE_1_0.txt or a copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</tr></table>
<hr>
<div class="spirit-nav">
-<a accesskey="p" href="../../BOOST_CONTRACT_BASE_TYPES.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.call_if_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="call_if__idm45
123870948032.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+<a accesskey="p" href="../../BOOST_CONTRACT_BASE_TYPES.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.call_if_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="call_if__idm45
395000098448.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>
projects / platform / upstream / boost.git / blobdiff