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  28 <h2><span class="refentrytitle">Macro BOOST_CONTRACT_NO_PRECONDITIONS</span></h2>
  29 <p>BOOST_CONTRACT_NO_PRECONDITIONS &#8212; If defined, this library does not check preconditions (undefined by default). </p>
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  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_PRECONDITIONS</pre></div>
  35 <div class="refsect1">
  36 <a name="idm45751730224864"></a><h2>Description</h2>
  37 <p>If this macro is defined, this library internal code is also optimized to reduce compile-time (not just run-time) overhead associated with checking preconditions. Users can manually program <code class="computeroutput">#ifndef</code> statements in their code using this macro to completely disable compilation of preconditions 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 <p><span class="bold"><strong>See Also:</strong></span></p>
  39 <p> <a class="link" href="boost_contract/tutorial.html#boost_contract.tutorial.preconditions" title="Preconditions"> Preconditions</a>,  <a class="link" href="boost_contract/extras.html#boost_contract.extras.disable_contract_checking" title="Disable Contract Checking">
  40         Disable Contract Checking</a>,  <a class="link" href="boost_contract/extras.html#boost_contract.extras.disable_contract_compilation__macro_interface_" title="Disable Contract Compilation (Macro Interface)">
  41         Disable Contract Compilation</a> </p>
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