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4<title>Macro BOOST_CONTRACT_NO_CONSTRUCTORS</title>
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28<h2><span class="refentrytitle">Macro BOOST_CONTRACT_NO_CONSTRUCTORS</span></h2>
29<p>BOOST_CONTRACT_NO_CONSTRUCTORS — Automatically defined by this library when contracts are not checked for constructors. </p>
30</div>
31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="reference.html#header.boost.contract.core.config_hpp" title="Header &lt;boost/contract/core/config.hpp&gt;">boost/contract/core/config.hpp</a>&gt;
33
34</span>BOOST_CONTRACT_NO_CONSTRUCTORS</pre></div>
35<div class="refsect1">
36<a name="idm45988679471584"></a><h2>Description</h2>
37<p>This macro is not a configuration macro and this library will generate a compile-time error if users try to define it directly. This library will automatically define this macro when users define all  <code class="computeroutput"><a class="link" href="BOOST_CO_idm46268585434496.html" title="Macro BOOST_CONTRACT_NO_INVARIANTS">BOOST_CONTRACT_NO_INVARIANTS</a></code>,  <code class="computeroutput"><a class="link" href="BOOST_CO_idm46268585468496.html" title="Macro BOOST_CONTRACT_NO_POSTCONDITIONS">BOOST_CONTRACT_NO_POSTCONDITIONS</a></code>, and  <code class="computeroutput"><a class="link" href="BOOST_CONTRACT_NO_EXCEPTS.html" title="Macro BOOST_CONTRACT_NO_EXCEPTS">BOOST_CONTRACT_NO_EXCEPTS</a></code>. Users can manually program <code class="computeroutput">#ifndef</code> statements in their code using this macro to completely disable compilation of contracts for constructors or use the macros defined in <code class="computeroutput">boost/contract_macro.hpp</code> (recommended only for applications where it is truly necessary to completely remove contract code compilation from production code).</p>
38<div class="note"><table border="0" summary="Note">
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40<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td>
41<th align="left">Note</th>
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43<tr><td align="left" valign="top"><p>Constructor preconditions are checked separately by  <code class="computeroutput"><a class="link" href="boost/contract/constructor_precondition.html" title="Class template constructor_precondition">boost::contract::constructor_precondition</a></code> so they are disabled by <code class="computeroutput"><a class="link" href="BOOST_CO_idm46268585474880.html" title="Macro BOOST_CONTRACT_NO_PRECONDITIONS">BOOST_CONTRACT_NO_PRECONDITIONS</a></code> instead.</p></td></tr>
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45<p>
46</p>
47<p><span class="bold"><strong>See Also:</strong></span></p>
48<p> <a class="link" href="boost_contract/tutorial.html#boost_contract.tutorial.constructors" title="Constructors"> Constructors</a>,  <a class="link" href="boost_contract/extras.html#boost_contract.extras.disable_contract_compilation__macro_interface_" title="Disable Contract Compilation (Macro Interface)">
49        Disable Contract Compilation</a> </p>
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58<td align="right"><div class="copyright-footer">Copyright © 2008-2019 Lorenzo Caminiti<p>
59        Distributed under the Boost Software License, Version 1.0 (see accompanying
60        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>)
61      </p>
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