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  14. <div class="section" id="boost-mpl-cfg-no-preprocessed-headers">
  15. <h1><a class="toc-backref" href="./configuration.html#id1598">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a></h1>
  16. <div class="section" id="id1343">
  17. <span id="boost-mpl-cfg-no-preprocessed"></span><h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
  18. <pre class="literal-block">
  19. // #define <a href="./cfg-no-preprocessed-headers.html" class="identifier">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a>
  20. </pre>
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  22. <div class="section" id="id1344">
  23. <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
  24. <p><tt class="literal"><span class="pre"><a href="./cfg-no-preprocessed-headers.html" class="identifier">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a></span></tt> is an boolean configuration macro
  25. regulating library's internal use of preprocessed headers. When defined, it
  26. instructs the MPL to discard the pre-generated headers found in
  27. <tt class="literal"><span class="pre">boost/mpl/aux_/preprocessed</span></tt> directory and use <a class="reference external" href="http://boost-consulting.com/tmpbook/preprocessor.html" target="_top">preprocessor
  28. metaprogramming</a> techniques to generate the necessary versions of the
  29. library components on the fly.</p>
  30. <p>In this implementation of the library, the macro is not defined by default.
  31. To change the default configuration, define
  32. <tt class="literal"><span class="pre"><a href="./cfg-no-preprocessed-headers.html" class="identifier">BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS</a></span></tt> before including any library
  33. header.</p>
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  35. <div class="section" id="id1346">
  36. <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
  37. <p><a class="reference internal" href="./macros.html">Macros</a>, <a class="reference internal" href="./configuration.html">Configuration</a></p>
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  43. <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div>
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