seq_transform_s.html 2.3 KB

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  1. <html>
  2. <head>
  3. <title>BOOST_PP_SEQ_TRANSFORM_S</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_SEQ_TRANSFORM_S</b> macro transforms each element in a <i>seq</i>
  9. according to a supplied transformation.&nbsp; It reenters <b>BOOST_PP_SEQ_FOLD_LEFT</b>
  10. with maximum efficiency.
  11. </div>
  12. <h4>
  13. Usage
  14. </h4>
  15. <div class="code">
  16. <b>BOOST_PP_SEQ_TRANSFORM_S</b>(<i>s</i>, <i>op</i>, <i>data</i>, <i>seq</i>)
  17. </div>
  18. <h4>
  19. Arguments
  20. </h4>
  21. <dl>
  22. <dt>s</dt>
  23. <dd>
  24. The next available <b>BOOST_PP_SEQ_FOLD_LEFT</b> fold step.
  25. </dd>
  26. <dt>op</dt>
  27. <dd>
  28. A ternary predicate of the form <i>op</i>(<i>s</i>, <i>data</i>, <i>elem</i>).&nbsp;
  29. This transformation is expanded by <b>BOOST_PP_SEQ_TRANSFORM</b> for each
  30. element in <i>seq</i> with the next available <b>BOOST_PP_SEQ_FOLD_LEFT</b> fold
  31. step, the auxiliary <i>data</i>, and the current element in <i>seq</i>.&nbsp;
  32. </dd>
  33. <dt>data</dt>
  34. <dd>
  35. Auxiliary data passed to <i>pred</i>.
  36. </dd>
  37. <dt>seq</dt>
  38. <dd>
  39. The <i>seq</i> to be transformed.
  40. </dd>
  41. </dl>
  42. <h4>
  43. Remarks
  44. </h4>
  45. <div>
  46. This macro expands <i>op</i> for each element in <i>seq</i>.&nbsp; It builds a
  47. new <i>seq</i> out of the results of each call.&nbsp; If, for example, <i>seq</i>
  48. is (<i>a</i>)(<i>b</i>)(<i>c</i>), this macro expands to...
  49. <div>
  50. (<i>op</i>(<i>d</i>, <i>data</i>, <i>a</i>))(<i>op</i>(<i>d</i>, <i>data</i>, <i>b</i>))(<i>op</i>(<i>d</i>,
  51. <i>data</i>, <i>c</i>))
  52. </div>
  53. </div>
  54. <h4>
  55. See Also
  56. </h4>
  57. <ul>
  58. <li>
  59. <a href="seq_transform.html">BOOST_PP_SEQ_TRANSFORM</a></li>
  60. </ul>
  61. <h4>
  62. Requirements
  63. </h4>
  64. <div>
  65. <b>Header:</b> &nbsp;<a href="../headers/seq/transform.html">&lt;boost/preprocessor/seq/transform.hpp&gt;</a>
  66. </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>