enum_trailing_params_z.html 2.7 KB

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  1. <html>
  2. <head>
  3. <title>BOOST_PP_ENUM_TRAILING_PARAMS_Z</title>
  4. <link rel="stylesheet" type="text/css" href="../styles.css">
  5. </head>
  6. <body>
  7. <div style="margin-left: 0px;">
  8. The <b>BOOST_PP_ENUM_TRAILING_PARAMS_Z</b> macro generates a comma-separated list of parameters with a leading comma.&nbsp;
  9. It reenters <b>BOOST_PP_REPEAT</b> with maximum efficiency.
  10. </div>
  11. <h4>Usage</h4>
  12. <div class="code">
  13. <b>BOOST_PP_ENUM_TRAILING_PARAMS_Z</b>(<i>z</i>, <i>count</i>, <i>param</i>)
  14. </div>
  15. <h4>Arguments</h4>
  16. <dl>
  17. <dt>z</dt>
  18. <dd>
  19. The next available <b>BOOST_PP_REPEAT</b> dimension.
  20. </dd>
  21. <dt>count</dt>
  22. <dd>
  23. The number of parameters to generate.&nbsp;
  24. Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_REPEAT</b>.
  25. </dd>
  26. <dt>param</dt>
  27. <dd>
  28. The text of the parameter.&nbsp;
  29. <b>BOOST_PP_ENUM_TRAILING_PARAMS_Z</b> concatenates numbers ranging from <i>0</i> to <i>count</i> - <i>1</i>
  30. to generate parameters.
  31. </dd>
  32. </dl>
  33. <h4>Remarks</h4>
  34. <div>
  35. This macro expands to the comma-separated sequence:
  36. <div>
  37. , <i>param</i> ## <i>0</i>, <i>param</i> ## <i>1</i>, ... <i>param</i> ## <i>count</i> - <i>1</i>
  38. </div>
  39. </div>
  40. <h4>See Also</h4>
  41. <ul>
  42. <li><a href="enum_trailing_params.html">BOOST_PP_ENUM_TRAILING_PARAMS</a></li>
  43. <li><a href="limit_repeat.html">BOOST_PP_LIMIT_REPEAT</a></li>
  44. </ul>
  45. <h4>Requirements</h4>
  46. <div>
  47. <b>Header:</b> &nbsp;<a href="../headers/repetition/enum_trailing_params.html">&lt;boost/preprocessor/repetition/enum_trailing_params.hpp&gt;</a>
  48. </div>
  49. <h4>Sample Code</h4>
  50. <div id="sample"><pre>
  51. #include &lt;<a href="../headers/repetition/enum_trailing_params.html">boost/preprocessor/repetition/enum_trailing_params.hpp</a>&gt;
  52. #include &lt;<a href="../headers/repetition/repeat.html">boost/preprocessor/repetition/repeat.hpp</a>&gt;
  53. #define MACRO(z, n, _) \
  54. template&lt; \
  55. class <a href="enum_trailing_params_z.html">BOOST_PP_ENUM_TRAILING_PARAMS_Z</a>(z, n, class T) \
  56. &gt; class X ## n { \
  57. /* ... */ \
  58. }; \
  59. /**/
  60. <a href="repeat.html">BOOST_PP_REPEAT</a>(2, MACRO, nil)
  61. /*
  62. expands to...
  63. template&lt;class&gt; class X0 { };
  64. template&lt;class, class T0&gt; class X1 { };
  65. */
  66. </pre></div>
  67. <hr size="1">
  68. <div style="margin-left: 0px;">
  69. <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
  70. </br><i>© Copyright Paul Mensonides 2002</i>
  71. </div>
  72. <div style="margin-left: 0px;">
  73. <p><small>Distributed under the Boost Software License, Version 1.0. (See
  74. accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
  75. copy at <a href=
  76. "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
  77. </div>
  78. </body>
  79. </html>