| Brian Silverman | f27e085 | 2018-08-04 23:56:45 -0700 | [diff] [blame^] | 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. 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>). |
| 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>. |
| 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>. It builds a |
| 47 | new <i>seq</i> out of the results of each call. 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> <a href="../headers/seq/transform.html"><boost/preprocessor/seq/transform.hpp></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> |