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<h2><span class="refentrytitle">Function null_old</span></h2>
-<p>boost::contract::null_old — Return a null old value. </p>
+<p>boost::contract::null_old — Return a "null" old value. </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="../../reference.html#header.boost.contract.old_hpp" title="Header <boost/contract/old.hpp>">boost/contract/old.hpp</a>>
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<a class="link" href="old_value.html" title="Class old_value">old_value</a> <span class="identifier">null_old</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></div>
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-<a name="idm45751727718496"></a><h2>Description</h2>
-<p>The related old value pointer will also be null. This function is often only used by the code expanded by <code class="computeroutput"><code class="computeroutput"><a class="link" href="../../BOOST_CONTRACT_OLDOF.html" title="Macro BOOST_CONTRACT_OLDOF">BOOST_CONTRACT_OLDOF</a></code></code>.</p>
+<a name="idm45707994220208"></a><h2>Description</h2>
+<p>The related old value pointer will also be null. This function is usually only called by the code expanded by <code class="computeroutput"><code class="computeroutput"><a class="link" href="../../BOOST_CONTRACT_OLDOF.html" title="Macro BOOST_CONTRACT_OLDOF">BOOST_CONTRACT_OLDOF</a></code></code>.</p>
<p><span class="bold"><strong>See Also:</strong></span></p>
<p> <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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