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<title>Macro BOOST_CONTRACT_PERMISSIVE</title>
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<h2><span class="refentrytitle">Macro BOOST_CONTRACT_PERMISSIVE</span></h2>
<p>BOOST_CONTRACT_PERMISSIVE &#8212; Disable some compile-time errors generated by this library (undefined by default). </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: &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;

</span>BOOST_CONTRACT_PERMISSIVE</pre></div>
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<a name="idm45707996850224"></a><h2>Description</h2>
<p>Defining this macro disables a number of static checks and related compile-time errors generated by this library, for example:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>The static invariant member function named as <code class="computeroutput">BOOST_CONTRACT_STATIC_INVARIANT_FUNC</code> must be declared <code class="computeroutput">static</code>. </p></li>
<li class="listitem"><p>Non-static invariant member functions named as <code class="computeroutput">BOOST_CONTRACT_INVARIANT_FUNC</code> must be declared either <code class="computeroutput">const</code>, <code class="computeroutput">const volatile</code>, or <code class="computeroutput">volatile const</code>. </p></li>
<li class="listitem"><p>Derived classes that program contracts for one or more public function overrides via <code class="computeroutput"><a class="link" href="boost/contract/public_f_idm45394998885120.html" title="Function template public_function">boost::contract::public_function</a></code> must also define the <code class="computeroutput"><a class="link" href="BOOST_CONTRACT_BASE_TYPES.html" title="Macro BOOST_CONTRACT_BASE_TYPES">BOOST_CONTRACT_BASE_TYPES</a></code> <code class="computeroutput">typedef</code>.</p></li>
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<p>
In general, it is not recommended to define this macro because these compile-time checks can guard against misuses of this library.</p>
<p><span class="bold"><strong>See Also:</strong></span></p>
<p> <a class="link" href="boost_contract/tutorial.html#boost_contract.tutorial.class_invariants" title="Class Invariants"> Class Invariants</a>,  <a class="link" href="boost_contract/tutorial.html#boost_contract.tutorial.base_classes__subcontracting_" title="Base Classes (Subcontracting)"> Base Classes</a> </p>
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        Distributed under the Boost Software License, Version 1.0 (see accompanying
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