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<a name="BOOST_CONTRACT_OLDOF"></a><div class="titlepage"></div>
</span>BOOST_CONTRACT_OLDOF(...)</pre></div>
<div class="refsect1">
-<a name="idm45751727591872"></a><h2>Description</h2>
+<a name="idm45707994093488"></a><h2>Description</h2>
<p>The expression expanded by this macro should be assigned to an old value pointer of type <code class="computeroutput"><a class="link" href="boost/contract/old_ptr.html" title="Class template old_ptr">boost::contract::old_ptr</a></code> or <code class="computeroutput"><a class="link" href="boost/contract/old_ptr_if_copyable.html" title="Class template old_ptr_if_copyable">boost::contract::old_ptr_if_copyable</a></code>. This is an overloaded variadic macro and it can be used in the following different ways.</p>
<p>1. From within virtual public functions and public functions overrides:</p>
<pre class="programlisting"><span class="identifier">BOOST_CONTRACT_OLDOF</span><span class="special">(</span><span class="identifier">v</span><span class="special">,</span> <span class="identifier">old_expr</span><span class="special">)</span>
<p>Where:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p><code class="computeroutput"><span class="bold"><strong>v</strong></span></code> is the extra parameter of type <code class="computeroutput"><a class="link" href="boost/contract/virtual_.html" title="Class virtual_">boost::contract::virtual_</a></code><code class="computeroutput">*</code> and default value <code class="computeroutput">0</code> from the enclosing virtual public function or public function overrides declaring the contract. </p></li>
-<li class="listitem"><p><code class="computeroutput"><span class="bold"><strong>old_expr</strong></span></code> is the expression to be evaluated and copied to the old value pointer. (This is not a variadic macro parameter so any comma it might contain must be protected by round parenthesis, <code class="computeroutput">BOOST_CONTRACT_OLDOF(v, (old_expr))</code> will always work.)</p></li>
+<li class="listitem"><p><code class="computeroutput"><span class="bold"><strong>old_expr</strong></span></code> is the expression to be evaluated and copied into the old value pointer. (This is not a variadic macro parameter so any comma it might contain must be protected by round parenthesis and <code class="computeroutput">BOOST_CONTRACT_OLDOF(v, (old_expr))</code> will always work.)</p></li>
</ul></div>
<p>
On compilers that do not support variadic macros, programmers can manually copy old value expressions without using this macro (see <a class="link" href="boost_contract/extras.html#boost_contract.extras.no_macros__and_no_variadic_macros_" title="No Macros (and No Variadic Macros)"> No Macros</a>).</p>
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-<td align="right"><div class="copyright-footer">Copyright © 2008-2018 Lorenzo Caminiti<p>
+<td align="right"><div class="copyright-footer">Copyright © 2008-2019 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>)
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