assign_slot.html 1.9 KB

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  3. <title>BOOST_PP_ASSIGN_SLOT</title>
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  7. <div style="margin-left: 0px;">
  8. The <b>BOOST_PP_ASSIGN_SLOT</b> macro fully evaluates a numeric macro or expression.
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  10. <h4>Usage</h4>
  11. <div class="code">
  12. #include <b>BOOST_PP_ASSIGN_SLOT</b>(<i>i</i>)
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  14. <h4>Arguments</h4>
  15. <dl>
  16. <dt>i</dt>
  17. <dd>
  18. The <i>slot</i> index that is to be assigned.&nbsp;
  19. This value must be in the range of <i>1</i> to <b>BOOST_PP_LIMIT_SLOT_COUNT</b>.
  20. </dd>
  21. </dl>
  22. <h4>Remarks</h4>
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  24. Prior to use, the <i>named external argument</i> <b>BOOST_PP_VALUE</b> must be defined.&nbsp;
  25. Also, it must expand to a numeric value that is in the range of <i>0</i> to <i>2</i>^<i>32</i> - <i>1</i>.
  26. </div>
  27. <h4>See Also</h4>
  28. <ul>
  29. <li><a href="limit_slot_count.html">BOOST_PP_LIMIT_SLOT_COUNT</a></li>
  30. <li><a href="value.html">BOOST_PP_VALUE</a></li>
  31. </ul>
  32. <h4>Requirements</h4>
  33. <div>
  34. <b>Header:</b> &nbsp;<a href="../headers/slot/slot.html">&lt;boost/preprocessor/slot/slot.hpp&gt;</a>
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  36. <h4>Sample Code</h4>
  37. <div><pre>
  38. #include &lt;<a href="../headers/slot/slot.html">boost/preprocessor/slot/slot.hpp</a>&gt;
  39. #define X() 4
  40. #define <a href="value.html">BOOST_PP_VALUE</a> 1 + 2 + 3 + X()
  41. #include <a href="assign_slot.html">BOOST_PP_ASSIGN_SLOT</a>(1)
  42. #undef X
  43. <a href="slot.html">BOOST_PP_SLOT</a>(1) // expands to 10
  44. </pre></div>
  45. <hr size="1">
  46. <div style="margin-left: 0px;">
  47. <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
  48. </br><i>© Copyright Paul Mensonides 2002</i>
  49. </div>
  50. <div style="margin-left: 0px;">
  51. <p><small>Distributed under the Boost Software License, Version 1.0. (See
  52. accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
  53. copy at <a href=
  54. "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
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